The thermal systems engineer will also be responsible for identifying and resolving trade-offs between competing attributes, developing roadmaps for improvement, and communicating attribute status to stakeholders.

You will work closely with cross-functional teams (Powertrain, Aerodynamics, Studio, Body Engineering, CAD/CAE resources and motorsport) to architect thermal solutions that meet aggressive performance targets.

Responsibilities:

• Own the thermal system architecture for assigned performance vehicle programs, including engine cooling circuits (radiators, CACs, oil coolers, etc)
• Define system requirements and performance targets (coolant flow, temperature limits, pressure drops, heat rejection capacity, etc.) in alignment with vehicle-level performance and durability goals
• Lead 1D and CFD-based analysis of underhood and powertrain thermal systems, modeling fluid flows through radiators, intercoolers, oil coolers, and related engine-side components
• Partner with aerodynamics and studio teams to use CFD to help optimize body features for managing airflow
• Develop and execute test plans for vehicle-level testing and validation, including instrumentation, climatic wind tunnel testing, and supporting test trips to off-site test facilities such as test tracks
• Lead root cause analysis and resolution of thermal issues discovered during development
• Present technical status, trade-offs, and recommendations to program management and senior engineering leadership

Qualifications:

• BS in Engineering (Mechanical, Aerospace or related) with 3+ years of Product Development experience desired
• Experience in thermal system development and 1D analysis
• Experience in analytical modeling, system level testing, vehicle level testing and correlation of testing to customer experience
• Strong enthusiasm for and knowledge of high-performance vehicles and the customers who purchase them
• Excellent written and oral presentation skills required
• Need to be self-starter with ability to deliver results and overcome obstacles
• Position will require some travel and occasional extended hours to complete testing and/or issue resolution

Even Better, You May Have:

• MS in Engineering (Mechanical, Aerospace or related)
• 5+ years of thermal systems development
• Experience with CFD vehicle modeling software and analysis
• Experience with ATI, PTDAIG or other vehicle data acquisition and analysis systems
• CAD knowledge and capability
• Performance driving experience (drag strip or off-road) and/or credentials within Ford is a plus. (≥Tier II)

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As a Data Center Infrastructure Mechanical Engineer, you will help design, validate, and scale the cooling and mechanical systems that make high-density AI compute possible. You will work across thermal architecture, equipment development, manufacturing validation, construction, commissioning, deployment, and operations, partnering with research, hardware engineering, data center engineering, supply chain, EHS, operations, and external delivery partners.

Key Responsibilities:

• Define mechanical and cooling infrastructure requirements and reference architectures for AI data center campuses, including heat rejection, chilled water, condenser water, liquid cooling distribution, air handling, containment, filtration, water treatment, controls, and metering.

• Review and develop basis-of-design documents, design narratives, P&IDs, mechanical schedules, equipment specifications, thermal capacity models, hydraulic models, CFD analysis, controls sequences, and commissioning requirements.

• Evaluate mechanical architectures for high-density compute, including direct-to-chip liquid cooling, CDU topology, facility water interfaces, manifolds, quick disconnects, hoses, heat exchangers, pumping strategies, leak detection, serviceability, and failure isolation.

• Partner with electrical, controls, hardware, networking, construction, and operations teams to ensure cooling systems support liquid-cooled GPU rack deployments and reliable facility operation.

• Develop technical specifications and acceptance criteria for chillers, cooling towers, dry coolers, evaporative coolers, pumps, heat exchangers, CDUs, manifolds, valves, filters, water treatment systems, CRAHs, air handlers, VFDs, controls panels, sensors, and monitoring devices.

• Lead technical evaluation of equipment vendors, manufacturers, design consultants, commissioning agents, contractors, and testing laboratories; review submittals, P&IDs, control diagrams, performance curves, test reports, certifications, and quality documentation.

• Drive factory acceptance testing, site acceptance testing, witness testing, pressure testing, leak testing, thermal performance testing, reliability testing, interoperability testing, and integrated systems testing for critical equipment and high-density rack deployments.

• Help design and operate a hardware and data center infrastructure R&D laboratory used to validate new cooling equipment, liquid-cooled GPU rack designs, operating envelopes, fault scenarios, telemetry, and facility-hardware interactions.

• Collaborate with hardware manufacturers to evaluate L10 and L11 test procedures, yield, throughput, reliability, serviceability, and readiness for large-scale deployment.

• Define telemetry and controls requirements for mechanical and supporting electrical systems, including temperatures, flow rates, differential pressure, pump status, valve position, chiller status, CDU status, coolant quality, leak detection, alarms, control states, and rack-level thermal signals.

• Analyze lab data, operational incidents, thermal excursions, flow excursions, pressure excursions, leak events, contamination events, nuisance alarms, controls alarms, and rack-level thermal failures to improve designs, procedures, vendor quality, and reliability models.

• Create clear engineering documentation, standards, test procedures, commissioning scripts, operating procedures, decision records, risk registers, and executive-ready technical summaries.

• Provide senior technical escalation support during design reviews, construction, manufacturing validation, commissioning, startup, production deployment, vendor testing, and operational events.

• Mentor partner teams and raise the technical bar for mechanical design, thermal validation, safety, water quality, documentation, reliability, and operational rigor.

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You will work at the intersection of heat transfer, materials science, and optical engineering to push the boundaries of receiver efficiency, durability, and cost-effectiveness.

Key responsibilities include:

• Leading the end-to-end design and development of high-temperature solar receivers optimized for solar field integration
• Developing thermal and optical models to predict receiver performance, including flux distribution, heat transfer efficiency, and thermal stress analysis
• Selecting and qualifying materials capable of withstanding extreme temperatures (800°C–1000°C+), thermal cycling, and high solar flux environments
• Designing receiver geometries (cavity, external, tubular, particle-based) to maximize energy absorption while minimizing thermal losses and mechanical fatigue
• Collaborating with solar collection and controls teams to optimize aiming strategies and flux distribution on receiver surfaces
• Interfacing with heat exchanger and thermal storage engineers to ensure seamless integration of receiver output with downstream systems
• Developing and executing testing protocols for receiver prototypes, including high-flux testing and accelerated life cycle evaluation
• Driving design-for-manufacturing initiatives to reduce receiver cost and improve producibility at scale
• Staying current with advances in receiver technology, high-temperature coatings, and selective absorber materials

Required qualifications include:

• A bachelor's degree in Mechanical Engineering, Aerospace Engineering, Materials Science, or related field; a master's or PhD is preferred
• 7+ years of experience in thermal systems design, with significant focus on high-temperature receiver or heat exchanger development
• Demonstrated expertise in solar thermal receiver design for tower-based or central receiver systems
• Strong background in heat transfer (conduction, convection, radiation), thermodynamics, and fluid mechanics
• Proficiency with thermal simulation tools (ANSYS, COMSOL, SolarPILOT, or equivalent)
• Experience with high-temperature materials including ceramics, refractory metals, and advanced alloys
• Hands-on experience taking receiver designs from concept through prototype testing and into production

Preferred qualifications include:

• Experience with molten salt, liquid sodium, or particle-based heat transfer media
• Knowledge of selective absorber coatings and high-temperature surface treatments
• Familiarity with optical modeling and ray-tracing software for flux analysis
• Background in solar field optimization and aiming point strategies
• Publications or patents in solar thermal receiver technology

Additional information:

• Competitive salary and equity options
• Comprehensive benefits package, including health, dental, and retirement plans
• Dynamic work environment that fosters creativity and innovation
• Opportunities for professional growth and development in a rapidly evolving industry
• Relocation assistance

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San Francisco

Employment Type

Full time

Department

Scaling

Compensation

• $226K – $378K • Offers Equity

The base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. If the role is non-exempt, overtime pay will be provided consistent with applicable laws. In addition to the salary range listed above, total compensation also includes generous equity, performance-related bonus(es) for eligible employees, and the following benefits.

• Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts

• Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)

• 401(k) retirement plan with employer match

• Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)

• Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees

• 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)

• Mental health and wellness support

• Employer-paid basic life and disability coverage

• Annual learning and development stipend to fuel your professional growth

• Daily meals in our offices, and meal delivery credits as eligible

• Relocation support for eligible employees

• Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided.

More details about our benefits are available to candidates during the hiring process.

This role is at-will and OpenAI reserves the right to modify base pay and other compensation components at any time based on individual performance, team or company results, or market conditions.

About the Team

The Hardware Strategic Sourcing & Partnerships organization is responsible for the global supply of compute infrastructure powering OpenAI’s model training and inference. We lead strategy, supplier engagements, commercial architecture, execution, and long-term enablement across advanced systems including custom silicon, accelerators, CPU platforms, networking, memory, power delivery, cooling, and full rack solutions.

We are a small, high-impact team working across engineering, operations, finance, legal, and executive leadership to scale OpenAI’s fleet worldwide.

About the Role

We are seeking a Sr. Strategic Sourcing Manager to own and lead sourcing strategy and global supplier partnerships for the High Speed Interconnects (e.g., power systems, high-speed interconnect, memory subsystems, networking modules, mechanical enclosures, thermal systems, etc.). You will be the single-threaded leader across supplier strategy, selection, negotiations, and commercial/operational execution.

You will be accountable for enabling massive growth, reducing long-term cost curves, securing supply resilience, and aligning supplier technology roadmaps with OpenAI’s future system architecture needs.

This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

Key Responsibilities

1. Own the category end-to-end: strategy, business case, supplier selection, executive alignment, and operational enablement

1. Lead complex commercial negotiations including MSAs, NRE, cost models, open-book pricing, ramp/capacity commitments, and risk-buy frameworks

1. Build and scale a reliable global supply base with redundancy and geopolitical compliance, including mapping and influencing sub-tier suppliers to ensure resilience across the extended supply chain.

1. Translate engineering requirements into actionable sourcing plans with tier-1 manufacturing partners

1. Drive cost benchmarking and teardown insights to shape long-term cost-down strategies

1. Maintain tight alignment with Operations, Capacity Planning, Finance, and Program Management to ensure supply readiness against growth milestones

1. Build executive-level relationships with suppliers to ensure priority allocation and roadmap synchronization

1. Define scalable sourcing processes and dashboards for risk, cost, and performance transparency

1. Mentor and uplift sourcing peers by role-modeling strong cross-functional leadership and commercial excellence

Qualifications

• 8+ years of strategic sourcing or supplier management experience in advanced electronics, cloud infrastructure, telecom, or semiconductor supply chains

• Demonstrated success owning a category and supplier portfolio at scale (supply assurance, commercial strategy, cost roadmap), including leading complex negotiations

• Strong understanding of electronic and module-level cost drivers (e.g., power, PCBAs, connectors, cooling, memory, networking)

• Proven ability to influence and partner with Engineering, Program Management, Legal, and Finance at senior levels

• Executive presence and ability to communicate clearly in high-stakes supplier and leadership forums

• Comfort with fast-paced ambiguity and decisive decision-making in compressed timelines

Preferred Qualifications

• Experience in hyperscale datacenter supply chain environments

• Familiarity with export controls and high-risk country strategies

• Technical background in \[mechanical/electrical engineering, high-speed IO, thermal systems, or rack-scale architecture\]

• Experience building sourcing playbooks, processes, and scalable operational mechanisms

_To comply with U.S. export control laws and regulations, candidates for this role may need to meet certain legal status requirements as provided in those laws and regulations

XML job scraping automation by YubHub

San Francisco

Employment Type

Full time

Department

Scaling

Compensation

• $226K – $378K • Offers Equity

The base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. If the role is non-exempt, overtime pay will be provided consistent with applicable laws. In addition to the salary range listed above, total compensation also includes generous equity, performance-related bonus(es) for eligible employees, and the following benefits.

• Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts

• Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)

• 401(k) retirement plan with employer match

• Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)

• Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees

• 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)

• Mental health and wellness support

• Employer-paid basic life and disability coverage

• Annual learning and development stipend to fuel your professional growth

• Daily meals in our offices, and meal delivery credits as eligible

• Relocation support for eligible employees

• Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided.

More details about our benefits are available to candidates during the hiring process.

This role is at-will and OpenAI reserves the right to modify base pay and other compensation components at any time based on individual performance, team or company results, or market conditions.

About the Team

The Hardware Strategic Sourcing & Partnerships organization is responsible for the global supply of compute infrastructure powering OpenAI’s model training and inference. We lead strategy, supplier engagements, commercial architecture, execution, and long-term enablement across advanced systems including custom silicon, accelerators, CPU platforms, networking, memory, power delivery, cooling, and full rack solutions.

We are a small, high-impact team working across engineering, operations, finance, legal, and executive leadership to scale OpenAI’s fleet worldwide.

About the Role

We are seeking a Sr. Strategic Sourcing Manager to own and lead sourcing strategy and global supplier partnerships for the Memory Storage & CPUs category (e.g., power systems, high-speed interconnect, memory subsystems, networking modules, mechanical enclosures, thermal systems, etc.). You will be the single-threaded leader across supplier strategy, selection, negotiations, and commercial/operational execution.

You will be accountable for enabling massive growth, reducing long-term cost curves, securing supply resilience, and aligning supplier technology roadmaps with OpenAI’s future system architecture needs.

This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees.

Key Responsibilities

1. Own the category end-to-end: strategy, business case, supplier selection, executive alignment, and operational enablement

1. Lead complex commercial negotiations including MSAs, NRE, cost models, open-book pricing, ramp/capacity commitments, and risk-buy frameworks

1. Build and scale a reliable global supply base with redundancy and geopolitical compliance, including mapping and influencing sub-tier suppliers to ensure resilience across the extended supply chain.

1. Translate engineering requirements into actionable sourcing plans with tier-1 manufacturing partners

1. Drive cost benchmarking and teardown insights to shape long-term cost-down strategies

1. Maintain tight alignment with Operations, Capacity Planning, Finance, and Program Management to ensure supply readiness against growth milestones

1. Build executive-level relationships with suppliers to ensure priority allocation and roadmap synchronization

1. Define scalable sourcing processes and dashboards for risk, cost, and performance transparency

1. Mentor and uplift sourcing peers by role-modeling strong cross-functional leadership and commercial excellence

Qualifications

• 8+ years of strategic sourcing or supplier management experience in advanced electronics, cloud infrastructure, telecom, or semiconductor supply chains

• Demonstrated success owning a category and supplier portfolio at scale (supply assurance, commercial strategy, cost roadmap), including leading complex negotiations

• Strong understanding of electronic and module-level cost drivers (e.g., power, PCBAs, connectors, cooling, memory, networking)

• Proven ability to influence and partner with Engineering, Program Management, Legal, and Finance at senior levels

• Executive presence and ability to communicate clearly in high-stakes supplier and leadership forums

• Comfort with fast-paced ambiguity and decisive decision-making in compressed timelines

Preferred Qualifications

• Experience in hyperscale datacenter supply chain environments

• Familiarity with export controls and high-risk country strategies

• Technical background in \[mechanical/electrical engineering, high-speed IO, thermal systems, or rack-scale architecture\]

• Experience building sourcing playbooks, processes, and scalable operational mechanisms

_To comply with U.S. export control laws and regulations, candidates for this role may need to meet certain legal status requirements as provided in those laws and regulations.

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