PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

We are seeking a Senior Optical Fibre Engineer to develop and evaluate advanced optical fibre for high-performance optical systems. This role combines optical modelling, deep understanding of advanced speciality optical fibre behaviour and design tradeoffs, and hands-on experimental validation, including the measurement and verification of key fibre properties. The successful candidate will work with internal teams with diverse technical expertise, and external partners, to translate performance requirements into practical technical direction for advanced fibre technologies. We welcome candidates from both advanced industrial photonics environments and leading research groups who combine strong physical intuition with practical experimental and engineering judgement.

Responsibilities:

• Use simulation and analytical tools to evaluate the behaviour and performance of advanced fibre designs and fibre-based optical systems.
• Assess modal properties, loss mechanisms, dispersion, coupling, and other key fibre characteristics relevant to demanding optical applications.
• Design and execute experiments to measure, verify, and interpret fibre properties and subsystem performance.
• Correlate simulation and experimental results to build understanding, validate assumptions, and guide development decisions.
• Work closely with external development partners to assess technical options, review results, and help steer fibre design and performance tradeoffs.
• Translate system or subsystem requirements into meaningful fibre performance targets and evaluation criteria.
• Collaborate across photonics, systems, and experimental teams to support integration of advanced fibre technologies into larger optical platforms.
• Contribute technical judgement to the down-selection, maturation, and validation of advanced fibre solutions

Experience/Qualifications:

Required

• PhD in photonics, optics, physics, engineering, or a related field, or equivalent industry experience.
• Significant experience in fibre optics, guided-wave photonics, or optical system development.
• Strong understanding of advanced and specialty optical fibre behaviour, including relevant modal, loss, dispersion, and coupling tradeoffs.
• Experience with optical simulation tools such as FDTD or related electromagnetic, waveguide, or propagation modelling methods.
• Ability to use simulation to guide practical design decisions and interpret behaviour in non-standard fibre systems.
• Hands-on experience designing and executing experiments to characterize optical or fibre properties.
• Experience analysing and reconciling modelling and experimental data.
• Ability to operate effectively in a hands-on R&D environment with a high degree of technical independence.
• Strong communication skills and ability to work productively with internal teams and external technical partners

Preferred

• Experience with advanced or specialty fibre platforms.
• Experience working closely with fibre development, fabrication, or research groups.
• Experience in both modelling and experimental verification of fibre or waveguide performance.
• Familiarity with demanding optical system environments where specific parameters, such as low loss take priority in trade-off scenarios.
• Experience translating early-stage optical concepts into robust experimental or engineering outcomes.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

PsiQuantum is seeking a Quantum Electronics Engineer to support the development of advanced electronic and electro-optic systems for quantum computing.

In this role, you will work closely with senior engineers to design and implement high-performance electronic solutions for controlling and reading out quantum photonic hardware. This includes RF design, electro-optic modulation, and low-latency control systems.

Responsibilities:

• Design and develop RF and high-speed electronic systems for quantum hardware applications.
• Support the design of electro-optic (EO) packages and modulator driving electronics.
• Develop low-latency electronic solutions for quantum system control and readout.
• Work on readout systems for superconducting nanowire single-photon detectors (SNSPDs).
• Collaborate with photonics and quantum teams to integrate electronics with optical systems.
• Assist in FPGA-based system design and implementation for control and data acquisition.
• Participate in debugging and optimization of complex quantum hardware systems.

Experience/Qualifications:

• Degree (PhD or equivalent experience) in Electrical Engineering, Physics, or a related field.
• Strong background in RF and high-speed electronic design.
• Experience working with electro-optic systems or photonic hardware.
• Understanding of signal integrity, noise, and timing in high-performance systems.
• Hands-on laboratory experience with electronic test and measurement equipment.

Desired Skills:

• Experience designing electronics for quantum or cryogenic systems.
• Familiarity with FPGA development and programming.
• Knowledge of superconducting nanowire detectors and readout electronics.
• Experience with low-latency system design and high-speed data acquisition.
• Experience with ASIC design or collaboration with ASIC development teams for high-speed or low-latency electronic systems.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

PsiQuantum is looking for a Quantum Systems Engineer to design, build, and validate quantum subsystems for our photonic quantum computing platform.

This role focuses on implementing and testing key quantum optical experiments and subsystems, contributing directly to the realization of fault-tolerant quantum computation. You will work across disciplines to integrate and validate system-level performance.

Responsibilities:

• Design, build, and test quantum photonic subsystems and experiments.
• Implement and analyse quantum interference experiments, including Hong-Ou-Mandel measurements.
• Develop and validate systems involving single-photon sources and detectors.
• Perform time-tagged measurements and analyse photon correlation data.
• Contribute to the development and testing of entangling circuits and quantum state preparation.
• Collaborate with cross-functional teams to integrate subsystems into larger quantum architectures.
• Debug complex experimental systems and identify performance limitations.
• Document and communicate experimental results to inform system design improvements.

Experience/Qualifications:

• PhD in Quantum Physics, Quantum Optics, or a related discipline.
• Strong experimental experience in quantum optics or photonic quantum systems.
• Hands-on experience with Hong-Ou-Mandel interference and related quantum optics experiments.
• Familiarity with single-photon sources, detectors, and time-tagging techniques.
• Strong data analysis and experimental design skills.

Desired Skills:

• Experience with entangling circuits and single-qubit readout techniques.
• Knowledge of quantum information concepts and photonic quantum architectures.
• Experience with experimental automation and data processing (e.g., Python).
• Ability to work effectively in cross-disciplinary teams.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

PsiQuantum is seeking an Integrated Photonics Engineer to support the characterization and validation of advanced photonic circuits underpinning our quantum computing platform.

In this role, you will design and execute experiments to test complex optical circuits, working closely with circuit designers and system engineers. You will play a key role in developing automated experimental workflows and advancing our understanding of integrated photonic devices.

Responsibilities:

• Design and execute experiments to characterize integrated photonic circuits across multiple optical wavelengths.
• Test and analyse devices incorporating components such as directional couplers, interferometers, and EO modulators.
• Develop automated experimental control and data acquisition systems (Python preferred).
• Characterize complex integrated optics-based circuits and interpret experimental results.
• Collaborate with design teams to troubleshoot device performance and improve future iterations.
• Generate detailed reports and documentation for experimental procedures and results.
• Contribute to the development of scalable testing methodologies for large-scale photonic systems.

Experience/Qualifications:

• PhD in Photonics, Physics, Electrical Engineering, or a related field.
• Strong experimental background in integrated optics and photonic circuit characterization.
• Hands-on experience with key components such as directional couplers, interferometers (MZI/AMZI), and phase shifters.
• Proficiency in Python for experiment automation and data analysis.
• Experience working with complex optical measurement setups.

Desired Skills:

• Industry experience in photonics or semiconductor device testing.
• Familiarity with electro-optic and thermo-optic tuning mechanisms.
• Experience with wafer-scale or high-throughput photonic testing.
• Knowledge of quantum optics or photonic quantum systems.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

PsiQuantum is building the world’s first fault-tolerant quantum computer, enabled by large-scale photonic integration. We are seeking an Optical Packaging & Assembly Engineer to join our UK R&D facility at Daresbury Laboratory.

In this role, you will work closely with a senior engineer to rapidly develop and prototype next-generation optical packaging solutions for photonic integrated circuits (PICs). You will collaborate across mechanical, electronic, and quantum hardware teams to enable the assembly and testing of cutting-edge optical quantum computing systems.

Responsibilities:

• Support the design and rapid prototyping of optical packaging solutions for PIC-based quantum hardware.
• Develop and implement fibre-to-chip alignment and attachment processes for high-performance optical coupling.
• Assist in the design of scalable packaging architectures, working alongside senior engineers.
• Collaborate with mechanical and electronic engineers to ensure integrated, manufacturable designs.
• Work closely with quantum physicists to support the build and testing of optical quantum systems.
• Contribute to the development of assembly workflows, processes, and documentation.
• Support component selection, procurement, and BOM development for prototype builds.
• Analyse experimental results and provide feedback to improve packaging performance and robustness.

Experience/Qualifications:

• PhD in Physics, Engineering, or a related discipline (or equivalent experience).
• Hands-on experience with optical assembly, fibre alignment, or opto-mechanical systems.
• Familiarity with photonic integrated circuits and optical packaging techniques.
• Experience working in a laboratory environment supporting experimental hardware development.
• Strong problem-solving skills and ability to work in a fast-paced R&D setting.

Desired Skills:

• Experience with fibre arrays, optical connectors, or precision alignment systems.
• Knowledge of DFM principles for optical packaging.
• Experience working in cross-functional engineering teams.
• Familiarity with optical measurement and characterization techniques.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

We are seeking a Senior Photonics Engineer to develop ultra-low-loss optical interface solutions between dissimilar, exploratory, waveguiding platforms. This role combines device concept development, optical simulation, and hands-on experimental validation to assess and mature new approaches for mode conversion and coupling. The successful candidate will combine creativity in photonic device design with strong engineering judgement, identifying solutions that are both high-performing and practical to deploy. Working closely with internal teams and expert external partners, they will help guide the development of advanced optical interfaces. We welcome applicants from both advanced industrial photonics environments and leading research groups who combine strong physical intuition with practical experimental and engineering judgement.

Responsibilities:

Experience/Qualifications:

Required

• PhD degree in photonics, optics, physics, engineering, or a related discipline, or equivalent practical experience.
• Significant experience in photonic device development, guided-wave optics, optical coupling, or integrated optical interface design.
• Strong understanding of mode conversion, mode control, and optical coupling between dissimilar waveguiding or photonic platforms.
• Experience with simulation tools such as BeamPROP, FDTD, eigenmode, BPM, or related methods for analysing propagation, modal behaviour, and coupling performance.
• Proven ability to use simulation to guide device design choices and interpret behaviour in complex optical interfaces.
• Hands-on experience designing and executing experiments to characterize optical coupling, insertion loss, and device performance.
• Strong experimental judgement and ability to troubleshoot complex photonic or optical measurements.
• Ability to assess technical feasibility while keeping practical implementation constraints in view.
• Strong communication skills and ability to work effectively with internal teams and external technical partners

Preferred

• Experience developing low-loss optical interface devices between fibre, waveguide, or integrated photonic platforms.
• Experience with advanced optical packaging, taper-based transitions, or coupling structures.
• Experience with optimisation methods or inverse design for photonic structures.
• Experience taking photonic device concepts from early-stage exploration through experimental proof of concept.
• Experience balancing innovation, performance, and manufacturability in photonic device development.
• Experience in advanced industrial photonics environments or high performing applied research groups.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

Recursion is a leading, clinical-stage TechBio company decoding biology to industrialize drug discovery. Central to its mission is the Recursion Operating System (OS), a platform built across diverse technologies that continuously expands one of the world’s largest proprietary biological, chemical and patient-centric datasets. Recursion leverages sophisticated machine-learning algorithms to distill from its dataset a collection of trillions of searchable relationships across biology and chemistry unconstrained by human bias. By commanding massive experimental scale—up to millions of wet lab experiments weekly—and massive computational scale—owning and operating one of the most powerful supercomputers in the world—Recursion is uniting technology, biology, chemistry and patient-centric data to advance the future of medicine.

In this role, you will:

• Build, scale, and operate a data platform. You will be a member of the platform team responsible for building, operating, and tuning a data platform that allows users to discover and query across the breadth of our data at Recursion, which includes a chemistry library of billions compounds, petabytes of cellular microscopy images taken in millions of different experimental contexts, and millions of assay results, all supporting Recursion’s drug discovery.
• Build relatability into a heterogeneous dataset. At Recursion, we generate datasets based on a wide swath of diverse biological models and treatment approaches. You'll work with biologists, chemists, and data scientists to build relatability and query-ability into these datasets so they can be used in the future to answer the sorts of questions we haven't even thought of asking yet.
• Act as a mentor, coach, and sponsor. You will share your technical knowledge and experiences, delivering impact, learning, and growth across teams at Recursion.

The Team You’ll Join

• You will join the Data Lake team that built and maintains our Data Lake/house. The team is responsible for relational and object storage and has the motto: all data flows to the Data Lake. The team solves the problem of making our diverse data discoverable, queryable, and relatable across datasets while we continue to add new data modalities as we grow. This will require collaboration with many different groups including teams building out reports, dashboards, and applications, teams finding and generating the required data for machine learning problems, and teams building and iterating on new data processing pipelines.

The Experience You’ll Need

• 5+ years of deep experience in modern, cloud-based data engineering. You have a proven track record of building and maintaining robust platforms that enable the discovery, query, and processing of large-scale datasets.
• Expertise in Core Technologies (Mandatory): You possess advanced proficiency in Python and SQL and experience with Containerization (Docker, Kubernetes), Infrastructure as Code (Terraform, etc.), and Agentic Development (Cursor, Claude, etc.)
• Data Fundamentals & Architecture: You have a deep understanding of Relational Databases (Postgres, MySql, etc.) and are proficient in working with data container files (e.g., Parquet, Avro, etc.). You are familiar with Medallion Architecture (Bronze/Silver/Gold) and know how to apply its principles to build scalable, reliable data products.
• Cloud & Platform Operations: You are seasoned in at least one major cloud provider (GCP, AWS, or Azure). You are comfortable in a "DevOps" capacity—specifically managing the infrastructure and tools that empower other engineers to run their pipelines, rather than focusing solely on building ETL flows.
• Hands-On: You understand the trade-offs between different architectures (Data Lake vs. Warehouse) and can make high-level decisions regarding CI/CD and system maintenance. Crucially, you are a "doer" who enjoys getting into the weeds of implementation, not only designing the blueprint.
• Collaborative Problem Solver: You thrive in environments with significant technical ambiguity. You can navigate complex systems and diverse technologies to deliver solutions that are easily monitored, quantified, and understood in production.
• People-First Mindset: You prioritize supporting your coworkers’ growth. We value a culture where meeting deadlines never comes at the expense of being a helpful, empathetic teammate.
• Intellectual Curiosity: While a background in drug discovery, biology, or chemistry isn't required, a drive to learn the domain and explore new technologies is essential!

• Cloud: Google Cloud Platform (GCP), GCS, Pub/Sub.
• Tools: dbt, Prefect, Argo Workflows, BigQuery, Snowflake, Fivetran, Datastream, AI/LLM (Cursor, Claude Code, and Gemini available).
• Infrastructure: Kubernetes, PostgreSQL, CI/CD (Argo).

Working Location & Compensation:

This position can be based at either our London or Milton Park office. Please note that we are a hybrid environment and ask that employees spend 50% of their time in the office.

At Recursion, we believe that every employee should be compensated fairly. Based on the skill and level of experience required for this role, the estimated current annual base range for this role is £75,900 - £101,900. You will also be eligible for an annual bonus and equity compensation, as well as a comprehensive benefits package.

#LI-EP1

Who We’re Looking For

What you'll do

• Independently build complex multi-physics models, from geometry clean-up and meshing through to simulation, post-processing, and integration of experimental data for validation, spanning single-phase, multiphase, and coupled CFD-DEM regimes.
• Develop and validate DEM models of granular and particle-laden systems, including fluidised beds, pneumatic conveying, mills, aerosols, suspensions and coating processes, applying appropriate contact models, size distributions, and coupling strategies.
• Build robust parametric CAD models coupled with simulation pipeline automation to execute advanced design optimisation and DoE studies across large parameter spaces.
• Partner with customers to address complex engineering challenges through advanced simulation and AI solutions. Present results clearly, recommend actionable next steps, and balance accuracy with efficiency under real project deadlines.
• Work at the intersection of CAE and data science to generate high-quality simulation datasets for training machine learning and deep learning surrogate models. Apply smart sampling strategies to capture the design space efficiently and reduce computational cost.
• Leverage Flux (our cloud platform) and on-premise HPC resources to accelerate high-fidelity modelling, going beyond standard setup practices to achieve genuine performance gains at scale.
• Continuously improve engineering best practices, adapting simulation model setups and outputs to support the development of deep learning surrogates and physics-informed ML models.
• Combine project leadership with a commitment to mentoring junior colleagues, contributing to a culture of collaboration, rigour, and shared growth.
• Travel globally (North America, Europe, Asia, Oceania) up to 2–3 weeks per quarter to work on-site with customers building solutions together.

What we're looking for

Core simulation skills

• Multiphase CFD: VOF, Euler–Euler, Euler–Lagrange, or mixture models
• DEM modelling: EDEM, Rocky, LIGGGHTS, or equivalent
• Coupled CFD–DEM workflows for particle–fluid systems
• Heat and mass transfer modelling
• Reacting flows and phase-change processes (advantageous)
• Proficiency in Star-CCM+, OpenFOAM, or Fluent

Engineering and workflow

• 3–5 years post-graduate experience in industry (not research)
• MEng, MSc, or PhD in mechanical, chemical, or process engineering
• Python scripting and simulation automation
• DoE, surrogate modelling, and design space exploration
• Parametric CAD modelling (NX or CATIA advantageous)
• Strong written and verbal communication with technical and non-technical audiences

Our delivery teams drive innovation to turn AI models into practical solutions - read our blog to learn more about how you’ll contribute to this exciting journey!

What we offer

Build what actually matters

Help shape an AI-native engineering company at a formative stage, tackling problems that genuinely matter for industry and society. This is work with real-world impact - and something you can be proud to stand behind.

Learn alongside exceptional people

Work with a high-caliber, collaborative team of engineers, scientists, and operators who care deeply about doing great work, and about helping each other get better. We come from diverse backgrounds, but we share a commitment to operating at the highest level and addressing some of the most complex challenges out there. If you’re ambitious, thoughtful, and driven by impact, you’ll feel at home.

Influence over hierarchy

We operate with a flat structure: good ideas win - wherever they come from. Questioning assumptions and challenging the status quo isn’t just welcomed, it’s expected.

Sustainable pace, long-term ambition

Building meaningful technology is a marathon, not a sprint. We believe in balancing focused, ambitious work with a life beyond it. Our hybrid model blends time together in our Shoreditch office with work-from-home days, giving you the flexibility to work sustainably while staying connected in person.

And it doesn’t stop there …

🚀 Equity options - share meaningfully in the company you’re helping to build.

🏦 10% employer pension contribution - because investing in future matters.

🍽️ Free office lunches - to keep you energised and focused.

👶 Enhanced parental leave - 3 months full pay paternity and 6 months full pay maternity leave, to provide extra flexibility during the moments that matter most.

🍼 YellowNest nursery scheme - to help working parents manage childcare costs.

☀️ 25 days of Annual Leave (+ Public Holidays) - because taking time to rest matters.

🏥 Private medical insurance - 100% employee cover, giving you complete peace of mind.

💪 Wellhub Subscription - gain access to thousands of gyms, classes and wellness apps, supporting both physical and mental wellbeing.

👀 Eye tests - because good work depends on good health.

📈 Personal development - dedicated support for learning, development, and leveling up over time.

💛 Employee Assistance Programme (EAP) - confidential wellbeing support, available whenever you need it.

🚲 Bike2Work scheme and 🚆 Season ticket loan - to make getting to work easier and greener.

🚗 Octopus EV salary sacrifice - for a simpler, more sustainable way to drive electric.

🔎 Watch this space, we’re continuing to build this as we grow…

Secretariat professionals are trusted in the highest-stakes legal, risk, and regulatory matters around the world.

When you join Secretariat, you become part of a rapidly growing elite team of bright minds and passionate problem-solvers. Your skills and expertise will be utilized on day one – working with the world’s most renowned investment funds, law firms, leading corporations, and influential institutions to answer complex questions that shape critical financial, economic, and strategic business decisions.

Our globally integrated teams are united by the ambition, energy, and commitment they bring to every challenge. We inspire and empower an open, collaborative culture that embraces ongoing professional development, recognition, diversity, and – most importantly – you.

Make your impact at Secretariat.

Responsibilities

• Lead complex failure analysis and engineering investigations, providing technical direction and ensuring high-quality, defensible outputs
• Serve as a subject matter expert in areas such as Fluid Dynamics, Thermodynamics, Heat Transfer, and Combustion
• Oversee laboratory testing, computational analysis, and field investigations
• Act as a primary client interface, communicating complex technical findings clearly to clients, counsel, and non-technical stakeholders
• Support and, where appropriate, serve as an expert witness, including preparation for depositions, hearings, and trials
• Manage multiple engagements, including scope, budget, timelines, and risk
• Mentor junior professionals and contribute to team development and technical excellence
• Drive business development, including proposal development, client relationship expansion, and market visibility

Requirements

• Requisite professional designations and work experience:
•  Ph.D. or equivalent advanced degree in Mechanical, Chemical, Aerospace/Aeronautical Engineering, or related field
• Significant experience in engineering consulting, applied research, or industry, including leading complex engagements
• Deep expertise in relevant disciplines (e.g., fluid dynamics, thermodynamics, heat transfer, combustion)
• Proven ability to manage client relationships and multidisciplinary teams
•  Excellent written and verbal communication skills, particularly in high-stakes or dispute contexts
•  Demonstrated contribution to business development and practice growth
•  Chartered Engineer (or equivalent) preferred
•  Willingness to travel as required

Secretariat is an equal opportunity employer.  We celebrate diversity and are committed to creating an inclusive environment for all employees.  We offer competitive compensation and benefits, and we support the continuing professional development of our employees.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

We are seeking an experienced engineer to lead end to end design, build and test of hardware to maximise the thermal efficiency of our quantum computing cryomodules, in particular, those working at cryogenic temperatures (2K to 80K range). In addition to full life cycle mechanical engineering development, this person would have experience in design for manufacture, cost engineering and ideally project management skills.

This role will be based at our UK site in Daresbury, with some travel ~10% of their time expected visiting HQ in the USA or our supply chain partners globally.

Responsibilities:

• Design of cryogenic assemblies and cryostat sub-systems to improve overall machine efficiency and/or reduce capital cost of the equipment (DfM).
• Calculations and Finite Element Analyses to inform DfM work.
• Design test setups and perform experiments to close models.
• Produce manufacturing/assembly drawings.
• Co-ordinate with Systems team in USA to move from R&D prototypes into production.
• Work with supply chain partners to optimise production cost/schedule/quality.
• Cryogenic performance vs cost analyses.

Experience/Qualifications:

Required Skills & Experience:

• Degree qualified.
• At least 8 years experience (to be considered for Senior level**) in a similar role within a scientific or advanced engineering environment.
• Demonstrable enthusiasm, knowledge and skill in the fields of cryogenic hardware design and mechanical engineering.
• Project or Systems Management experience.
• Design for Manufacture experience/cost engineering.
• Experience developing thermo-mechanical test setups and procedures.
• Experience working within multidisciplinary teams.
• Effective communication and interpersonal skills to collaborate with various teams and external stakeholders.
• Enjoys solving difficult problems.
• Exceptional organizational skills and the ability to handle multiple tasks simultaneously

Preferred Skills & Experience:

• Experience designing cryogenic systems.
• Experience operating cryogenic systems.
• Experience in the production of manufacturing drawings.
• Strong mechanical design and analysis skills, expertise in GD&T.
• Generating & maintaining bills of materials.
• Generating & maintaining a Specification Tree.
• Experience in tolerance analysis and how this affects thermo-mechanical performance.

We are open to considering all levels of experience**

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.

PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. 

Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. 

Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. 

In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale. 

PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact. 

Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. 

Come join us. 

Job Summary:

The Senior Optical Packaging Engineer is responsible for developing & implementing high-performance, robust & scalable opto-electronic packaging workflows for a variety of chip-based photonic integrated circuits. This work will be carried out in PsiQuantum’s UK R&D facility located in Daresbury Lab.

Responsibilities:

• Develop an optical package and fibre-to-chip alignment scheme that allows for high alignment accuracy and scalable assembly.
• Help develop packaging prototypes & scalable fibre-to-chip packaging flows and processes.
• Review packaging design BOMs, work with supply chain on procuring parts needed for assembly.
• Work with our internal packaging team and external vendors on transferring & scaling packaging designs and processes based on successful prototypes.
• Work with external vendors and suppliers to source required materials and provide feedback on evolving requirements. 
• Working with external partners to develop advanced opto-electronic packaging solutions.

Experience/Qualifications:

• Master’s Degree or above in Optical Engineering, Physics or equivalent.
• 3+ years of experience working on PIC packaging design & qualification.
• 5+ years of experience working with optical fibers, optical measurements.
• 3+ years of experience working on FAU / optical connector to chip attachment.
• Experience with optical data analysis.

PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com.

We are not accepting unsolicited resumes from employment agencies.