As a Machine Learning Engineer Intern at Optiver, you’ll work alongside experienced engineers on high-performing systems that respond to live financial markets in real time.

You’ll contribute to the compute platforms and libraries that support large-scale machine learning model training and simulation workloads, gaining hands-on experience applying modern ML techniques to real quantitative trading problems. Within weeks, you could be building tools or models that run in production and directly support our trading strategies.

By the end of the 8-week internship, you’ll have a clear and practical understanding of how technology and ML techniques are used in the quantitative trading industry. Plus, if you’ve excelled over the summer, you’ll receive an offer to return as a Machine Learning Engineer.

WHAT YOU’LL DO:

Led by our in-house education team that consists of ex-traders and engineers, you’ll delve into advanced engineering concepts and lead innovative projects, during our world-class training program.

In just a few weeks, you'll have the opportunity to:

• Gain first-hand experience applying the latest AI technology to quantitative trading problems.

• Help build the compute platform and libraries for large scale machine learning model training and simulation workloads.

• Manage a project end-to-end, learn how to work with a complex code base and make impactful contributions to production systems.

• Work on real trading and IT problems, both technically and functionally, to improve our trading success.

Throughout the program, you'll be paired with an experienced mentor, who will show you the ins-and-outs of our trading systems, and provide you with guidance and feedback.

Additionally, internal resources will be available for your continuous learning and development.

WHAT YOU’LL GET:

You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Driven by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle the most complex problems in the financial markets.

In addition, you’ll receive:

• A highly competitive remuneration package.

• Optiver-covered flights and accommodation for the duration of the internship.

• The opportunity to work alongside best-in-class professionals.

• Training, mentorship and personal development opportunities.

• Gym membership, plus weekly in-house chair massages.

• Daily breakfast, lunch and in-house barista.

• Regular social events.
  
  

WHO YOU ARE:

• Students graduating in 2027 or later.

• Foundations in Machine Learning fundamentals, including optimisation and deep learning concepts.

• Hands-on experience with deep learning frameworks such as PyTorch, JAX, or similar.

• Interested in building scalable and reproducible machine learning pipelines, including data preprocessing, training, evaluation, and experiment tracking.

• Natural problem solvers who love nothing more than tackling a complex technical challenge.

• Team players who thrive in collaborative environments and are eager to learn, iterate, and improve.

• Interested in the trading / quantitative finance industry (prior finance knowledge is not required).
  
  Optional:

• Ability to identify and reason about compute and performance bottlenecks, using profiling, benchmarking, and systematic analysis to improve training efficiency.

• Experience with distributed training or GPU acceleration is a plus.

• Familiarity with experiment management tools (e.g. MLflow, Weights & Biases) or workflow orchestration is a plus.

HOW TO APPLY:

If you're ready to take the next step in your career and work on one of the most exciting trading floors in mainland China, we’d love to hear from you. Apply now via the form below. Applications close 16 March 2026.

In your application, please submit the following materials in English:

• Resume

• Cover letter (optional)

For any other inquiries, contact us at chinacareers@optiver.com.au

DIVERSITY STATEMENT

Optiver is committed to diversity and inclusion. We encourage applications from candidates of all backgrounds, and welcome requests for reasonable adjustments during the process.

We accept one application per role per year. If you have previously applied to this position during this season and have been unsuccessful, you can re-apply when the next recruitment season begins in 2027.

PRIVACY DISCLAIMER

Optiver 重视个人信息的保护。请您在提供个人信息给我们之前，认真阅读Optiver China Privacy Notice, 了解我们如何收集及处理您的个人信息。

Personal information protection is of utmost importance to Optiver. Before you provide any personal information to us, we strongly urge you to read our Privacy Policy to acknowledge how we collect and process your personal information.

Overview

Join our team as a MEMS Microphone Engineer and lead the charge in developing and optimizing cutting-edge MEMS microphone modules for the future of consumer electronics. Your deep expertise in acoustic engineering and semiconductor manufacturing will be the driving force behind overcoming complex system-level challenges like Microphone Coexistence (Mic-Coex) with wireless radios and ensuring pristine sound quality. Collaborate with cross-functional teams to deliver reliable, high-performing audio solutions with impressive manufacturing yields.

Responsibilities

• Drive the development of custom MEMS microphone modules, covering MEMS transducer, ASIC, and advanced packaging solutions, while balancing acoustic performance, power consumption, and physical footprint.
• Lead the integration of microphone modules into complex systems, focusing on resolving Microphone Coexistence (Mic-Coex) issues involving RF/EMI and signal integrity.
• Implement mechanical and electrical integration using flexible printed circuits (FPC), ensuring robust electrical connectivity and optimal acoustic path designs to maintain high-frequency sensitivity.
• Oversee the Final Assembly, Test, and Pack (FATP) process, establishing critical tolerances and developing acoustic testing methodologies for mass production.
• Define and oversee comprehensive reliability testing programs, including thermal cycling, drop/shock testing, and moisture sensitivity (MSL) evaluations, based on industry standards like JEDEC and MIL-STD.

Minimum Qualifications

• Bachelor's degree in Electrical Engineering, Mechanical Engineering, Acoustics, Physics, Materials Science, or a related field.
• A minimum of 5+ years of direct experience in MEMS microphone module development from concept to high-volume mass production.
• Expertise in acoustic engineering and semiconductor manufacturing, with strong problem-solving skills in system-level challenges such as RF/EMI and signal integrity.
• Proven experience in collaborating with cross-functional teams, external vendors, and contract manufacturers.
• Willingness to travel internationally (up to 25-30%) to support manufacturing ramps and vendor audits.

Preferred Qualifications

• Advanced degree (Master's or Ph.D.) in a relevant field.
• Familiarity with statistical process control (SPC) and data analysis tools like JMP or Minitab for yield analysis and failure mode analysis.
• Experience with structured problem-solving techniques such as 8D and FMEA.

Supply Chain, Sourcing Strategy & Partner Management

• Develop and implement the end-to-end supply chain and sourcing strategy for the Sweater categories including a multi-sourcing approach to ensure resilience.
• Onboard new manufacturing partners to the Quince direct-to-consumer (D2C) model and provide coaching on operating within a rapid replenishment, M2C (Manufacturer-to-Consumer) environment.
• Educate partners on the Quince Operating System (OS), covering:
• Operational Excellence: Fostering rapid lead times and a consumer-oriented approach.
• Financial Model: Achieving high Return on Invested Capital (ROIC).
• Technical Integration: Proficient use of the Vendor Portal.

Operational Excellence & Growth

• Drive continuous improvement to achieve key performance indicators:
• Quality: Defect rate less than 0.5%.
• Speed & Accuracy: Replenishment Lead Time under 14 days.
• Availability: In-stock rate exceeding 99%.
• Financial Impact: Margin-accretive performance.
• Lead Catalog Expansion in collaboration with Merchandising and Product Development (PD) teams, successfully launching new styles and colors approved through the New Product Creation (NPC) process.
• Conduct structured Quarterly Business Reviews (QBRs) with the management of each partner, focusing on strategic alignment, business performance highlights, identified areas for improvement, and future objectives.

Responsibility 

• 15+ years of a director level of Strategic Sourcing or Procurement, or Supplier Management experience operating with major US-based retailers.
• Deep set of partner factory connections within Sweater category globally , including APAC , IST and EMEA regions
• Product obsessed with experience in leveraging factories/vendor expertise to design, cost engineer, and bring products to market. With a thorough Knowledge of Key Material localised in the region
• GM mindset with a supply chain background and manufacturing (lean/ JIT) experience
• Deep understanding of cost for the categories , able to drive product cost saving thru clean sheets and apply different negotiation tactics 
• Highly organized, detail-oriented and analytical with focus on execution, problem- solving, improving processes and brand enhancement.
• Continuous learner and highly curious; always open to considering new perspectives; proactive when changing course and facing added challenges.
• Business savvy and embrace technology /AI 
• Excellent written and verbal communication, presentation, and interpersonal skills
• Bachelor’s Degree, preferred.

Thermal Runaway Protection Engineer

Responsibilities

• Responsible for simulation analysis and optimization design of power battery modules and system thermal runaway, thermal diffusion and exhaust

• Responsible for the mining and application of new technologies, new materials and new processes for thermal runaway protection of battery packs and modules

• Responsible for the development and optimization design of protective parts and materials for thermal runaway of battery packs and modules, to ensure that the thermal design can meet the needs of thermal runaway and thermal diffusion

• Responsible for the simulation analysis and optimization design of battery pack system and module thermal management

• Responsible for the design of power battery thermal safety related products, analysis of advantages and disadvantages of schemes, and verification of technical solutions

• Responsible for the preparation of technical plans for thermal management and the output of relevant technical documents

Qualifications

• Bachelor’s degree or above in Power Engineering, thermal engineering, fluid mechanics, vehicle engineering, machinery or related field

• 3 years or above experience in system design and simulation analysis of battery thermal management components, proficient in structural simulation or fluid simulation tools (Fluent, CFX, Star CCM+, etc.), capable of relevant simulation work

• Familiar with the development of thermal management-related components, such as heat exchanger (liquid cooling plate), pipeline, heating components, sensors, fire insulation materials and other thermal management components design, selection and application experience

• Independent and high quality project completion experience, foreign project experience is preferred

• Work hard and flexible, careful and rigorous, have a sense of responsibility and good team spirit, pursue continuous progress

Cathode Electrode Engineer

Responsibilities

• Locate/evaluate candidate Cathode Materials for high energy cell design, Anode will be a Li Metal coated on Cu foil
• Cathode materials development & evaluation experience; High Ni centent NCM series, NCA series, and NCMA, LFP & LFMP
• Locate/evaluate new cathode materials from various suppliers and run evaluation and screen process 
• Lead Cathode Electrode Design: optimum electrode formulation to meet the goal
• Cathode Electrode process to meet the design
• Assemble lithium metal coin and pouch cells and conduct testing with a focus on repeatability
• Perform crystal structure, microstructure, particle size, voltammetry, impedance spectroscopy, cycle life testing, and reliability tests to understand, and improve the performance
• Electrochemical tests skills such current, voltage, CV, impedance, GITT
• Knowledge and test skills of SEM, XRD, Particle size determination

Qualifications

• MS in materials science, chemical engineering, chemistry, or a related field with focus on electrochemistry, material science or related field.
• Knowledge and understanding of lithium ion battery technologies including cathode material selection and synthesis, electrode fabrication, cell design, cell assembly, testing and failure mode analysis. Lithium Metal Battery experience is plus.
• Skills of testing coin and pouch cells
• Knowledge of Cathode Material Mass Production Experience is plus
• Knowledge of solid electrolyte material thermal processing and experience with solid state battery development is plus.
• The candidate must have strong analytical and problem-solving skills and must be able to design and conduct complex experiments, employing DOE approach to interpret and correlate experimental results with battery product performance.
• Desire to learn experimental and analytical techniques.
• A good oral and written communication skills and ability to work as a team player in a multi-functional environment.

Mechanical Engineer

Responsibilities

• Responsible for the analysis and evaluation of power battery cell selection, structural materials and product structure design scheme according to customer SOR

• Responsible for the schematic design of power battery PACK battery system and modules, detailed design of 3D digital model and 2D drawings

• Responsible for the safety and reliability design of power battery PACK battery system and module level

• Systematically analyzed the problems found in trial production, mass production and user feedback, and put forward improvement suggestions

• Responsible for sample sending and making, processing progress tracking, sample confirmation, etc.

• Responsible for testing and verification of Pack system and parts, design optimization according to regulations or customer requirements, and structural improvement for mass production

• Prepare design specifications and patents

Qualifications

• Bachelor’s degree or above, major in electrochemistry, Vehicle engineering, Mechatronics, polymer materials, Electrical engineering, automation, etc

• More than 3 years of experience in power battery PACK structure design, experience in product G&D drawing, dimension chain analysis, ability to independently design pack battery system structure, independent structural strength simulation ability is preferred

• Experience in composite material structure design and structural airworthiness verification of aircraft is preferred

• Familiar with battery electrical related professional knowledge, battery selection and testing experience is preferred

• Familiar with the characteristics and application range of metal materials and plastic materials, proficient in injection molding process, sheet metal processing process, surface treatment, etc., skilled in Solidworks, CATIA, UG and other design software

• Able to read and write in English

• Work hard, careful and rigorous, have a sense of responsibility and good team spirit

Process Engineer (Senior Engineer / Engineer)

Responsibilities

• Responsible for the development of new products, new materials and new processes, and responsible for the manufacturability analysis and mass production introduction of evaluation products

• Put forward the process optimization plan, carried out verification and result analysis, and completed the formulation, implementation and update of process documents

• Responsible for the analysis and defect improvement of adverse problems in the battery production process, identification of possible failure modes in the mass production process of new product introduction, and output effective process control methods

• Responsible for product process route and data collection and maintenance

• Responsible for process optimization, improvement of process flow and parameters, and improvement of optimal rate

Qualifications

• Bachelor’s degree or above, major in material, chemistry, mechanical science and engineering

• More than 3 years of experience in lithium battery technology or product development

• Familiar with the manufacturing process standards of lithium batteries

• Good team communication skills

As a Process Integration Engineer (Process focus), you will bring extensive expertise to lead process develop and optimization projects and provide marketing information / advanced technical solutions in collaboration with BU R&D and technology development teams. This role will influence both customer satisfaction and internal technology advancements.

Key Responsibilities

• Execute and optimize the integration of product processes, ensuring compatibility and performance across process modules and hardware systems;
• Collaborate with Global BU/SU teams to drive new product introduction and enhance the stability of mass production for both process and hardware;
• Support full product lifecycle management, including process integration, mass production support, continuous improvement, and end-of-life technical optimization;
• Lead and conduct DOE experiments, data analysis, and troubleshooting for process and hardware-related issues, ensuring timely project delivery;
• Monitor and analyze market and competitor trends in process and hardware technologies, providing recommendations for improvement;
• Prepare technical documentation, process specifications, and reports; participate in technical exchanges and customer support;
• Communicate closely with global BU/SU teams and local customers to ensure product and process/hardware solutions meet customer requirements.

Job Requirements

• Master’s degree or above in Microelectronics, Materials Science, Physics, Chemical Engineering, or related fields;
• Minimum 5 years of experience in semiconductor equipment / process integration, with solid knowledge of mainstream process modules (ALD / CVD preferred) and related hardware systems; Solid knowledge of advanced logic/memory device integration is a plus.
• Experience in new processes and/or equipment development and optimization.
• Strong cross-functional communication and project execution skills.
• Good command of written and spoken English (Korea is a plus), able to read technical documents.
• Experience in customer technical support or project management is a plus.
• Willingness to travel frequently, both domestically and internationally.

As a Process Integration Engineer (Process focus), you will bring extensive expertise to lead process develop and optimization projects and provide marketing information / advanced technical solutions in collaboration with BU R&D and technology development teams. This role will influence both customer satisfaction and internal technology advancements.

Key Responsibilities

• Execute and optimize the integration of product processes, ensuring compatibility and performance across process modules and hardware systems;
• Collaborate with Global BU/SU teams to drive new product introduction and enhance the stability of mass production for both process and hardware;
• Support full product lifecycle management, including process integration, mass production support, continuous improvement, and end-of-life technical optimization;
• Lead and conduct DOE experiments, data analysis, and troubleshooting for process and hardware-related issues, ensuring timely project delivery;
• Monitor and analyze market and competitor trends in process and hardware technologies, providing recommendations for improvement;
• Prepare technical documentation, process specifications, and reports; participate in technical exchanges and customer support;
• Communicate closely with global BU/SU teams and local customers to ensure product and process/hardware solutions meet customer requirements.

Job Requirements

• Master’s degree or above in Microelectronics, Materials Science, Physics, Chemical Engineering, or related fields;
• Minimum 5 years of experience in semiconductor equipment / process integration, with solid knowledge of mainstream process modules (ALD / CVD preferred) and related hardware systems; Solid knowledge of advanced logic/memory device integration is a plus.
• Experience in new processes and/or equipment development and optimization.
• Strong cross-functional communication and project execution skills.
• Good command of written and spoken English (Korea is a plus), able to read technical documents.
• Experience in customer technical support or project management is a plus.
• Willingness to travel frequently, both domestically and internationally.