Driver Jobs in Bristol.
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At Fractile, we’re taking a revolutionary approach to computing to run the world’s largest language models 100x faster than existing systems. Our fast-growing team is working at the cutting edge of the latest AI developments in both hardware and software. Want to get involved?
We are looking for Senior ML Compiler Engineers with experience in machine learning compilation to work on the compiler stack for our ground-breaking AI accelerators. You can be based in our Bristol office or London, the choice is yours.
Why Fractile: We're building something that doesn't exist yet.
Fractile isn't another AI startup gluing together frameworks. We are designing a full-stack execution engine: hardware, compiler, runtime, to build the world's largest language models 100 x faster than today's systems. That ambition forces us to rethink everything from first principles.
For compiler engineers, this is a rare moment: the architecture is still being shaped. The IR, the lowering strategy, the optimisation passes, the execution model - you get to define its future.
In this role, you will:
- Develop the machine learning compiler stack for Fractile’s innovative AI acceleration hardware
- Enable industry-leading performance of the latest LLMs on Fractile’s accelerators
- Work with hardware, driver runtime, and ML engineers in a highly collaborative hardware-software co-design methodology
It would be great if you have:
- Proven experience of the development of machine learning compilers using industry standard technologies such as MLIR or TVM
- Up-to-date knowledge of machine learning techniques and technologies
- A good understanding of computer architecture and performance optimisation techniques
- Excellent C/C++ skills and solid experience of industry standard development tools and technologies
- An creative and innovative mindset, and a willingness to take ownership and drive results in a fast-paced environment
- Computer Science, Electronic Engineering, Maths, Physics, or related degree and 3+ years of industry experience
You may also have:
- Previous experience in a startup or small team environment
Ready to apply?
Apply to FractileAt Fractile, we believe that we are building the worlds fastest and most energy efficient AI inference chip from the ground up. Half the company is dedicated to hardware design and the other half to software. Our team works hand in hand with the hardware engineers to extract every last drop of performance from the architecture, and we are building a world class interdisciplinary team to make that happen.
About the role:
We are creating a new team of Rust engineers to work on greenfield software with members having scope to influence architecture, direction and engineering practices from day one.
In this role, you will:
- Write Rust server side software to build a reference implementation of a full AI inference stack specifically tuned to take advantage of the hardware we are building, including a Linux kernel driver in Rust. The hardware will be housed in data centres so the remit of work includes building out all the required cloud based tooling as well.
- You will be expected to conduct your own research into the state of the art in AI inference and implement these ideas. You will be encouraged to take initiative and make sense of difficult problems in unfamiliar areas.
What we are looking for:
- We are looking for creative problem solvers and generalists who have the grit to tackle hard problems.
- Experience in serving AI workloads (for example vLLM, SGLang or Rust equivalents) or strong systems level engineering experience. If you don’t have AI experience then experience in a wide range of complimentary industries would also be beneficial. Specifically experience moving large amounts of data around in real time at low latency, paging, caching etc.
- We will consider candidates without commercial Rust experience as long as they are strong senior developers in another systems language (e.g. C/C++ etc.) and can demonstrate proficiency in Rust through open source contributions and/or personal projects.
If you have a portfolio of Rust projects that you have authored and can share then this will help in the selection process.
We will not subject you to online algorithmic-style testing but any interview will be very technical and you will be expected to have a background in computer science and a deep understanding of Rust. In particular, your ability to read unfamiliar code, understand it and point out problem areas is important to us.
Languages:
- Rust, C, C++ and Python
About us:
- Founded in 2022, team of 70+ which is expanding rapidly
- Modern, open offices in London and Bristol
- Collaborative, problem-solving culture built on deep curiosity, entrepreneurial initiative and technical fluency
- Fractile offers hybrid working. You will be able to work in either our London or Bristol office three days per week and for from home for the remaining two days.
Export control and security clearance:
Certain roles may involve working on technologies subject to export restrictions. Applicants may be required to undergo additional eligibility checks to ensure compliance with applicable law.
Ready to apply?
Apply to FractileBristol or London, 3 days in the office, 2 days WFH
At Fractile, we’re building what we believe will be the world’s fastest AI inference chip from the ground up. We're balanced across hardware and software engineering, and HW/SW co-design is real here. We move fast, and we help each other move fast. We care about each other, the software we ship and the people who rely on it.
This role sits at the boundary between host and silicon. The kernel driver is key to keeping pace with our ultra-fast devices on cutting-edge server platforms. It’s a high-leverage layer where each win shows up as real throughput and latency gains.
You’ll be there for the pre-silicon simulations, first bring-up, first end-to-end runs, and the moments where performance jumps because of something you shipped.
What you’ll do
- Design, develop, and maintain the Linux kernel driver for Fractile’s AI accelerator
- Build the performance-critical kernel-space paths that keep the host stack moving: PCIe device management, DMA, memory handling, interrupt handling, and robust recovery paths
- Define and evolve the userspace interface the runtime depends on, with a focus on stability, debuggability, and performance
- Work in a tight co-design loop with hardware, firmware, runtime and ML engineers: validate assumptions, iterate on behaviour, and close gaps early
- Improve tooling/workflows so we move fast without breaking things
What we’re looking for
- You’ve shipped and maintained Linux kernel device drivers in production. Experience with PCIe-attached devices and custom hardware interfaces is ideal.
- Strong systems and performance instincts. You can reason about computer architecture, concurrency, and where the time goes
- Excellent C and/or Rust, and a pragmatic approach to building high-quality, maintainable & secure kernel code
- You enjoy hard kernel and system-level problems, and you take them end-to-end until the measurements move
- Computer Science, Electronic Engineering, Maths, Physics, or related degree and 3+ years of industry experience
Nice to have
- GPUs / ML accelerators / high‑throughput I/O (NICs, RDMA, storage)
- Hardware bring‑up or pre‑silicon simulation experience
- Performance work: profiling, tracing, benchmarking, regression tracking
If you want to build the software where every driver win unlocks huge system performance, come build it together.
Ready to apply?
Apply to FractileBristol or London, 3 days in the office, 2 days WFH
At Fractile, we’re building what we believe will be the world’s fastest AI inference chip from the ground up. We’re balanced across hardware and software engineering, and HW/SW co-design is how we work. We move fast, and we help each other move fast. We care about each other, the software we ship, and the people who rely on it.
We build the control chain that powers on, monitors, updates, and protects devices and racks across bare metal, RTOS, and embedded Linux. It’s production-critical software that keeps racks stable, updates safe, and hardware secure. It’s a critical layer in turning a tokens per second benchmark into a tokens per month system, turning great silicon into reliable output at rack scale.
You’ll be there for the first racks coming to life and rollout days where update safety matters. Your work makes the difference between a bad failure and a clean recovery path. This is the work that makes the system something operators can trust.
What you’ll do
- Develop firmware and services for management controllers at every level: rack management, BMC, and board/device controllers (RTOS and bare metal)
- Build systems software for board and rack management, from early bring-up through to production deployment
- Implement the critical flows that keep fleets healthy: power-on and provisioning, monitoring/telemetry, updates, recovery, and security
- Integrate with the wider host/device stack (drivers and runtime libraries) so the system works end-to-end
- Work closely with hardware and device software teams to define reliable interfaces, validate behaviour, and debug boundary issues
What we’re looking for
- Proven experience shipping production-critical, reliable embedded systems across two or more of: bare metal, RTOS, embedded Linux (or deep expertise in one with clear ability to ramp the others)
- Strong C and/or Rust, and excellent engineering judgement around safety, testing, debugging, and failure modes
- A reliability-first mindset: you design for observability, diagnosability, and recovery paths that are predictable and testable
- Comfortable working close to the hardware/software boundary (bootloaders/BSP/kernel-adjacent work) and collaborating tightly with HW, driver, and runtime teams
- Collaborative and high-ownership. You communicate clearly, move fast, and enjoy working through hard problems with others
- Computer Science, Electronic Engineering, Maths, Physics, or related degree and 3+ years of industry experience
Nice to have
- Embedded platform / systems firmware experience (board management, BMC-style stacks, rack controllers)
- OpenBMC experience and/or embedded Linux image build/customisation experience
- Zephyr (or similar RTOS) experience
- Security-minded, with practical instincts around secure boot, signed updates, device identity, and designing systems that fail safe and recover cleanly (direct experience in some areas is a plus)
- Kernel device work (drivers, device tree, bring-up, perf/trace)
- Hardware bring-up experience, including lab tools (logic analysers, oscilloscopes, waveform viewers)
- RISC-V familiarity
- Experience with GPUs or ML accelerators
If you want to build the control software that keeps rack-scale systems stable, safe, and secure for next-gen AI, come build it together.
Ready to apply?
Apply to Fractile
Research Scientist (Embodied AI & World Models)
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About Graphcore
At Graphcore, we’re building the future of AI compute.We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale.As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem.To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world.We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence.
Job Summary
As a researcher at Graphcore, you will contribute to the advancement of AI research, investigating new ideas that push the limits on important AI/ML problems. Specialised hardware has been the key driver of the progress of AI over the last decade, and we believe that hardware-aware AI algorithms and AI-aware hardware developments will continue to be critical to advancing this exciting field. As such, we’re looking for candidates who are keen scientists and engineers, with the theoretical and practical skills needed for impactful AI research.
We are looking for researchers with experience of AI in low-power, edge and embodied scenarios such as robotics, autonomous driving and augmented/virtual reality. We are interested in the training and deployment of multimodal AI models in these contexts, covering areas such as world models, real-time computer vision, generating and reasoning over audio/video streams.
The Team
Graphcore Research participates in both fundamental and applied research, to characterise the computational requirements of machine intelligence and to demonstrate how hardware can drive the next generation of innovative AI models. We publish at leading AI/ML conferences (NeurIPS, ICML, ICLR) as well as specialist workshops, and collaborate with other research teams and organisations across the world.
We pride ourselves on being a supportive and collaborative team, where we organise around our individual research interests to solve problems together in domains such as efficient compute, model scaling and distributed training and inference of AI models for multiple modalities and applications, including for sequence- and graph-based data. We’re based across London, Cambridge and Bristol, with projects and discussions that involve all our locations.
Perhaps the best way to get an idea of what we’re all about is to read one of our papers or an article on our blog. If you’re excited to work at the cutting edge of AI supported by new hardware and want to develop your skills in this area, we’d love to hear from you!
Responsibilities and Duties
- Generate AI/ML ideas, design experiments, implement them & evaluate results.
- Prepare, submit & present your work to AI conferences and workshops.
- Collaborate with researchers, silicon and software engineers at Graphcore to help define, build and test Graphcore’s next generation of AI hardware.
About you:
Essential:
- Master’s, PhD or equivalent experience in a technical discipline (e.g., Maths, Statistics, Computer Science, Physics, Chemistry, Biomedical Engineering).
- Experience in embodied AI, world models or robotics.
- Python programming in a modern deep learning framework, e.g. PyTorch or JAX.
- Familiar with deep learning fundamentals: models, optimisation, evaluation and scaling.
- Capable of designing, executing and reporting from ML experiments.
- Mathematics skills to support the above: calculus, probability theory and linear algebra.
- Experience submitting papers to international scientific conferences or workshops.
Desirable:
- Lower-level programming for hardware efficiency, e.g. C++/CUDA/Triton.
- Practical familiarity with hardware capabilities for deep learning – threads, caches, vector & matrix engines, data dependencies, bus widths and throttling.
- Practical familiarity with software stacks for deep learning – compilation, kernel fusion, XLA/ATen ops, streams, and asynchronous execution.
- Conference or workshop submissions in the fields of embodied AI, world models, or robotics.
Benefits
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications
Ready to apply?
Apply to Graphcore
Home Delivery Regional Depot Manager
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Location: Home Based - with daily travel to one of our three sites in Basingstoke (primary destination), Bristol (primary destination) and Banbury
About The Team:
The HelloFresh Delivery Network (HFDN) is a critical part of our UK growth strategy, improving customer experience while reducing cost to serve. As we expand the network, we are looking for a Regional Manager for the West, responsible for the performance, stability, and startup/scale-up of three delivery sites, including one small satellite location.This role sits at the heart of execution. You will own day to day regional performance across safety, service, and cost, while also playing a key role in expanding capability, embedding standards, and preparing sites for growth. The role requires a strong grounding in B2C home delivery operations, confidence managing multiple locations, and the ability to translate plans into consistent on-the-ground execution.
What You Will Be Doing:
- Own end-to-end performance across three HFDN sites in the West, ensuring consistent standards despite differences in scale and maturity
- Act as the senior operational lead for the region, accountable for service, cost, safety, DSPs.
- Stabilise and scale new and smaller sites, ensuring they are operationally sound and aligned to HFDN ways of working
- Oversee final mile delivery operations, from box handover and van loading through to route execution
- Drive delivery accuracy, service reliability, and customer experience across all sites
- Work closely with planning and central teams to ensure routes are executable and efficiently delivered on the ground
- Work closely with central Logistics and HFDN development teams to embed new processes, tools, and standards
- Identify operational risks and improvement opportunities, using data to drive decisions
- Support future site launches and expansion activity in the region, acting as a key operational input
- Ensure high standards of health and safety and compliance across all sites
- Oversee cost control, invoice approval, and regional budget adherence
- Handle escalations relating to customer complaints, insurance claims, and delivery incidents
Who You Are:
- Proven experience leading multi-site logistics or home delivery operations, ideally within B2C, FMCG, or last-mile environments
- Comfortable owning regional performance rather than a single site
- Strong people leader with experience managing Drivers and site teams
- Confident operating in fast-changing environments, including new site launches or expansion phases
- Solid understanding of fleet operations, driver models, and final mile delivery challenges
- Data-driven, with the ability to balance cost, service, and safety
- Experienced in health and safety, incident management, and operational risk
- A demonstrable track record of reducing errors and improving operational performance at scale
What you will get in return:
- 70% off HelloFresh or Green Chef boxes
- Company pension scheme
- Gym membership
- Bupa private medical insurance (including dental & family cover options)
- Mental health first aiders and an employee assistance programme
- Dog friendly office! (London site only)
- Nursery support scheme
- Cycle to work scheme
- Group Life Assurance
Shifts: 6am to 3pm, Saturday to Wednesday, flexibility required
Next steps: Your application will be reviewed and if successful, a member of the Talent Acquisition Team will be in touch within 2 weeks.
You are required to cooperate with HelloFresh in all health and safety matters. You are responsible for ensuring you take reasonable care of your own health, and safety as well as others who may be affected by the work activities you undertake. You must report incidents immediately and actively raise health and safety-related concerns to your Line Manager. As part of our commitment to maintaining a safe and secure environment, we will process Disclosure and Barring Service (DBS) checks to the successful individual. Failure to disclose relevant information at application or throughout the process could affect your employment with the company.
If you are currently a HelloFresh employee, please make sure you have discussed your application with your Line Manager.
To be considered for this role, you’ll need to have the independent right to work in the UK, as we're unfortunately unable to provide sponsorship at this time.
Ready to apply?
Apply to HelloFresh
About Graphcore
At Graphcore, we’re building the future of AI compute.We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale.As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem.To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world.We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence.
Job Summary
As a research engineer at Graphcore, you will contribute to the advancement of AI research, investigating new ideas that push the limits on important AI/ML problems. Specialised hardware has been the key driver of the progress of AI over the last decade, and we believe that hardware-aware AI algorithms and AI-aware hardware developments will continue to be critical to advancing this exciting field. We are therefore looking for individuals who combine strong machine learning experience with practical engineering skills to deliver impactful AI research. We are seeking AI researchers with strong software engineering experience, particularly in lower-level programming and performance optimisation for hardware efficiency. Our research spans a broad range of topics, including efficient training and inference, world models, life sciences, reinforcement learning, and beyond. You will work closely with researchers to generate ideas and translate them into scalable implementations, contributing to publications and projects that help to steer the future of AI hardware.
The Team
Graphcore Research participates in both fundamental and applied research, to characterise the computational requirements of machine intelligence and to demonstrate how hardware can drive the next generation of innovative AI models. We publish at leading AI/ML conferences (NeurIPS, ICML, ICLR) as well as specialist workshops, and collaborate with other research teams and organisations across the world.
We pride ourselves on being a supportive and collaborative team, where we organise around our individual research interests to solve problems together in domains such as efficient compute, model scaling and distributed training and inference of AI models for multiple modalities and applications, including for sequence- and graph-based data. We’re based across London, Cambridge and Bristol, with projects and discussions that involve all our locations.
Perhaps the best way to get an idea of what we’re all about is to read one of our papers or an article on our blog. If you’re excited to work at the cutting edge of AI supported by new hardware and want to develop your skills in this area, we’d love to hear from you!
Responsibilities and Duties
- Generate AI/ML ideas, design experiments, implement them & evaluate results.
- Prepare, submit & present your work to AI conferences and workshops.
- Provide technical insight to internal teams by designing experiments and delivering clear, actionable reports.
- Collaborate with researchers, silicon and software engineers at Graphcore to help define, build and test Graphcore’s next generation of AI hardware.
About you:
Essential:
- Master’s, PhD or equivalent experience in a technical discipline (e.g., Maths, Statistics, Computer Science, Physics, Chemistry).
- Python programming in a modern deep learning framework, e.g. PyTorch or JAX.
- Familiar with deep learning fundamentals: models, optimisation, evaluation and scaling.
- Capable of designing, executing and reporting from ML experiments.
- Lower-level programming for hardware efficiency, e.g. C++/CUDA/Triton.
- Practical familiarity with hardware capabilities for deep learning – threads, caches, vector & matrix engines, data dependencies, bus widths and throttling.
- Practical familiarity with software stacks for deep learning – compilation, kernel fusion, XLA/ATen ops, streams, and asynchronous execution
Desirable:
- Mathematics skills to support the above: calculus, probability theory and linear algebra.
- Experience submitting papers to international scientific conferences or workshops.
Benefits
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications
Ready to apply?
Apply to Graphcore
About Graphcore
At Graphcore, we’re building the future of AI compute.
We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale.
As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem.
To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world.
We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence
Job Summary
As a member of the drivers and utilities team you will contribute to the planning, design, implementation and testing of low level kernel drivers and user space driver library code. You will be part of one of the two teams in the system software department (the firmware team being the other one) and report to the drivers and utilities team manager.
The Team
The drivers and utilities team forms part of the system software group – working closely with both software engineers developing our Poplar SDK and with silicon and hardware engineers developing Graphcore’s IPU solution. The drivers and utilities team develop custom control software on the host in kernel and user space. Our solutions enable our customers to get maximum performance and utility for our cutting-edge products.
Responsibilities and Duties
- Design, implement, test and document OS Kernel and Device Driver software at the highest standard using C/C++/Python programming languages
- Participate in agile development – working as part of a scrum team to develop the right software at pace
- Communicate effectively and contribute regularly to technical discussions with your peers in software and hardware engineering, with architects and other stakeholders
- Hands-on during key product development phases involving close working with hardware and silicon engineering groups to enable fast time to market delivery
Candidate Profile
Essential:
- Proven industry experience in software development using programming languages such as C/C++/Python
- OS Kernel and Device Driver development and deployment experience in Linux or Windows systems
- Good understanding of lower-level software stack and interactions with the hardware layer
- Possess effective problem-solving skills, familiar with a full suite of debug and performance analysis tools and techniques
- Experience with one or more of the following: PCIe, CPU, device drivers, SoC, firmware, and hardware/software integration
- Proactive in obtaining engineering or management input to solve issues
- Motivated to schedule own workload
- Excellent written and verbal communication skills, work well within a multinational team and with multinational customers. Excellent cultural awareness is essential.
Desirable
- Experience developing firmware or drivers for GPUs.
- Knowledge of CUDA or OpenCL
- Experience working on upstreaming of kernel code / contributing to Linux kernel.
- Exposure to integration with data centre / cloud service operations – for example integration with Kubernetes or open stack.
Benefits
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications
Ready to apply?
Apply to Graphcore
About Graphcore
Graphcore is one of the world’s leading innovators in Artificial Intelligence compute.
It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry.
As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone.
Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore enjoys a culture of continuous learning and constant innovation.
The Role:
We are looking to hire Post-Silicon Validation Engineers to join our collaborative, cross-functional development team validating cutting edge, high performance AI chips and platforms. You will play a critical role in supporting new product introductions and post-silicon validation. Working within the Post-Silicon Validation team, you will be involved with bringing first silicon to life, functionally validating it and working closely with many other teams to help it become a fully characterised and working product, reporting project status/progress to program management on a regular basis. You will have the opportunity to, and be responsible for, leading, mentoring, and providing technical guidance to other engineering team members. In this role, you can leverage your experience and industry knowledge to architect and drive implementation of continuous improvements to test infrastructure and processes.
The Post-Silicon Validation team sits within the Architecture and Validation team, we are responsible for validation of new silicon when it returns from manufacture, enabling and supporting the production SW and FW teams to bring up their software and also supporting the Silicon Characterisation team.
Responsibilities and Duties
- Plan, design, develop and debug silicon validation tests in bare metal C/C++ on FPGA/Emulator prior to first silicon
- Deploy silicon validation tests on first silicon and debugging them
- Develop automated test framework and regression test suites in Python to optimize validation efficiency
- Collaborate closely with engineers from many other disciplines on a variety of topics
- Work with Validation and Production Test engineering peers to implement best practices and continuous improvements to test methodologies
- Analyse test results, identify and debug failures/defects
- Contribute to shared test and validation infrastructure
- Provide feedback to architects
Essential skills:
- Strong experience in Bare metal / embedded C/C++
- Good knowledge of digital ASICs
- Be highly motivated, a self starter, and a team player
- Ability to work across teams and programming languages to find root causes of deep and complex issues
- Experience of the post-silicon validation process applied in digital ASIC environments
- Python, Linux
- Excellent communication skills and the ability to collaborate with others to solve problems
- Excellent problem-solving, analytical & diagnostic skills
Desirable skills:
- Driver level experience with one or more of the following is highly desirable:
- PCIe
- Ethernet
- Memory technologies (LPDDR, DDR, HBM, …)
- Other peripherals such as I2C, I3C, SPI, …
- Good knowledge of mixed-signal building blocks such as PLLs, high speed PHYs and IC control/communication protocols is highly desirable
- Experience of Arm CPUs, System IP and debug tools
- Experience of AMBA protocols
- Understanding of ML applications and their workloads
- Experience in Characterization, Failure Analysis, Test Development, Statistical analysis, and Customer Support
Benefits:
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Ready to apply?
Apply to Graphcore
About Graphcore
At Graphcore, we’re building the future of AI compute.
We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale.
As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem.
To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world.
We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence
Job Summary
Reporting to the Firmware Manager and working as a member of the Firmware Team, the Senior Staff Firmware Engineer is responsible for the design, development, and delivery of complex firmware systems across Graphcore’s next-generation hardware platforms.
This role requires significant technical breadth and deep embedded systems expertise. You will contribute to shaping the firmware architecture and design, guide engineering practices, and solve highly challenging problems while maintaining a strong hands-on focus. You will partner closely with hardware, drivers, silicon and platform teams to deliver robust, scalable, production-quality firmware.
The Team
The Firmware Team develops the low-level software responsible for the complete boot, configuration, and monitoring of Graphcore silicon and hardware platforms. Our work includes:
- Boot and power sequencing
- Low-level hardware interfaces and drivers
- Telemetry, monitoring and SMBus/BMC data exposure
- Silicon and system bring-up
Responsibilities and Duties
- Provide technical leadership and act as a subject-matter expert for complex firmware features, subsystems, and architecture decisions
- Lead design and development of scalable, maintainable firmware solutions in C, contributing to long-term architecture and system strategy
- Own and deliver critical low-level functionality (e.g., boot flows, embedded real-time logic, platform security, silicon bring-up)
- Perform advanced system debugging using low-level tools (e.g., JTAG, oscilloscopes, logic analysers) and drive root-cause analysis for complex issues
- Collaborate cross-functionally with hardware, silicon, platform, and external partners to define requirements and resolve integration challenges
- Ensure high standards of quality, reliability, and security through code reviews, validation improvements, CI/CD, and automated testing
- Mentor engineers and elevate team performance by promoting best practices, improving development processes, and driving continuous engineering excellence
Candidate Profile
Essential:
- Proven industry experience in embedded/firmware engineering using C/C++
- Expertise in designing and delivering real-time embedded systems and complex boot logic
- Strong understanding of modern silicon and hardware interfaces (I2C, I3C, SMBus, SPI, PCIe, DDR, power management, etc.)
- Demonstrated ability to design and implement complex technical initiatives
- Excellent problem-solving skills with a track record of resolving complex, cross-layer issues
- Ability to define and communicate architectural direction at subsystem or multi-subsystem scale
- Strong communication skills and the ability to document large system designs clearly
- Experience with CI/CD systems, build tools, and modern software engineering practices
Desirable
- Experience with server architectures or datacentre hardware
- Understanding of server/platform security concepts and their application to firmware
- Experience working directly with silicon vendors or hardware partners
- Knowledge of OS kernel, secure firmware flows, or trusted execution environments
- Experience with device driver development
Benefits
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications
Ready to apply?
Apply to Graphcore
About Graphcore
At Graphcore, we’re building the future of AI compute.
We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale.
As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem.
To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world.
We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence
Job Summary
As a member of the drivers and utilities team you will contribute to the planning, design, implementation and testing of low level kernel drivers and user space driver library code. You will be part of one of the two teams in the system software department (the firmware team being the other one) and report to the drivers and utilities team manager.
The Team
The drivers and utilities team forms part of the system software group – working closely with both software engineers developing our Poplar SDK and with silicon and hardware engineers developing Graphcore’s IPU solution. The drivers and utilities team develop custom control software on the host in kernel and user space. Our solutions enable our customers to get maximum performance and utility for our cutting-edge products.
Responsibilities and Duties
- Design, implement, test and document OS Kernel and Device Driver software at the highest standard using C/C++/Python programming languages
- Participate in agile development – working as part of a scrum team to develop the right software at pace
- Communicate effectively and contribute regularly to technical discussions with your peers in software and hardware engineering, with architects and other stakeholders
- Hands-on during key product development phases involving close working with hardware and silicon engineering groups to enable fast time to market delivery
Candidate Profile
Essential:
- Proven industry experience in software development using programming languages such as C/C++/Python
- OS Kernel and Device Driver development and deployment experience in Linux or Windows systems
- Good understanding of lower-level software stack and interactions with the hardware layer
- Possess effective problem-solving skills, familiar with a full suite of debug and performance analysis tools and techniques
- Experience with one or more of the following: PCIe, CPU, device drivers, SoC, firmware, and hardware/software integration
- Proactive in obtaining engineering or management input to solve issues
- Motivated to schedule own workload
- Excellent written and verbal communication skills, work well within a multinational team and with multinational customers. Excellent cultural awareness is essential.
Desirable
- Experience developing firmware or drivers for GPUs.
- Knowledge of CUDA or OpenCL
- Experience working on upstreaming of kernel code / contributing to Linux kernel.
- Exposure to integration with data centre / cloud service operations – for example integration with Kubernetes or open stack.
Benefits
In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.
Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications
Ready to apply?
Apply to Graphcore
Community Nurse -Bristol
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Job Title: Community Nurse
Banding: Band 5 & 6
Location: Bristol
Hourly Pay Rate: £17 – £32 per hour
Pulse Nursing are currently recruiting for Community nurses, band 5 and 6. Are you currently seeking new opportunities? Are you looking to support the Community across Bristol? Are you a general nurse that would you like to upskill your skills to work in the community? Do you want to work for an agency which takes pride in putting people first? At pulse we pride ourselves on making a difference and we are driven by excellence.
Pulse is one of the fastest growing Nursing agencies, and you could be a part of Pulse Nursing changing the community. Our vision is to be the leading global healthcare solutions partners. So, are you caring, passionate, hardworking and looking to change the community around you?
Car driver is a must for this role. Are you dedicated, compassionate and want to deliver the best possible high quality of care to the individuals we care for and wanting to earn more money then apply today?
We are looking for nurses to pick up part time and full-time hours
What are the benefits of you joining choosing Pulse?
Benefits and rewards:
- Have access to free high-quality training courses to support your career development
- Be partnered with a dedicated consultant to support you throughout your onboarding, compliance and booking stages
- Be able to access reliable booking team which works 24/7 and can support you day or night.
- Receive rewarding – competitive pay rates and bonuses of up to £500 for recommending your friends*
- Quick and easy convenient online recruitment process
- Be able to update your availability and book your own shifts with our free smartphone app, ipoint
- You will have access the best choice of shifts across the UK and which suits your lifestyle
- Be able to work across the NHS and private sector
Competitive rates of pay
*Dependent on contracts available at the time of joining.
Pulse is part of Acacium Group, the UK’s largest healthcare solutions partner offering staffing, managed services and innovative delivery models to health and social care systems and the global life sciences industry. We are focused on using our experience and capabilities to improve people’s lives, through expert healthcare, social care and life sciences
Ready to apply?
Apply to Pulse HealthcareJoin Team Orange
At SIXT, we don’t just rent cars — we create premium mobility experiences. Our success is built on exceptional service, entrepreneurial thinking, and a passion for performance.
Whether you're working in sales, customer experience, or operations, you’ll be part of a high-performing team that puts customers first and delivers results every day.
Rental Sales Agent – Bristol Airport
Join Team Orange | Customer Experience • Sales • Operations
Are you a talent in customer service and sales? At SIXT, you can fully showcase your strengths. You’ll ensure customer satisfaction, manage our vehicle fleet, and take on a variety of tasks in the branch.
Everything you need to know about our vehicles, you’ll learn with us. Benefit from excellent development opportunities and a competitive compensation package:
£27,204.78 base salary
£300/month guaranteed bonus (first 6 months)
Uncapped bonus with OTE of £50,000
YOUR ROLE
- You are the first point of contact for our customers — friendly, professional, and passionate about sales and service
- You create tailored offers and deliver a premium experience for every customer interaction
- You manage rental agreements and customer inquiries with accuracy and a service-first mindset
YOUR SKILLS
- You are passionate about sales and delivering exceptional customer service
- You have experience in direct customer contact (service, tourism, or sales preferred)
- You are confident and articulate in English
- You are flexible, team-oriented, and thrive in a fast-paced, shift-based environment
- You hold a valid driver’s license with at least 12 months of driving experience
WHAT WE OFFER
- Top-Tier Pay Structure – Competitive salary and uncapped bonus, plus pension scheme
- Generous Time Off – 22 days annual leave plus bank holidays
- Training & Development – Paid training and career progression opportunities
- Exclusive Benefits – Discounted SIXT rentals for you, friends, and family
- Wellbeing & Life Assurance – Access to wellbeing support and life assurance
- Employee Support – Family-friendly policies and Employee Assistance Programme
ABOUT SIXT
SIXT is a leading global mobility provider operating in over 110 countries, delivering premium service and innovative mobility solutions.
Join us and become part of a high-performance culture where customer experience and entrepreneurial spirit come first.
Why SIXT?
- Premium Brand – A global leader in mobility with a reputation for quality and innovation
- Career Growth – Real development opportunities in a fast-moving, international business
- Performance Culture – We reward ambition, ownership, and results
- Team Orange – Work with passionate, driven people who love what they do
Ready to take the next step?
Apply now and accelerate your career with SIXT.
Ready to apply?
Apply to Sixt