Systems Senior Staff Engineer
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Job Location:
Littleton, CO - USA
Monthly Salary:
Not Disclosed
Posted on:
23 hours ago
Vacancies:
1 Vacancy
Job Summary
At JetCool a Flex company were at the forefront of liquid cooling innovation delivering advanced solutions that empower our partners in AI and high-performance computing. United by a shared purpose our teams are pushing the limits of whats possible and tackling complex challenges.
A career at JetCool offers the opportunity to make a real impact by helping build smarter more sustainable data were not just advancing technology were redefining cooling standards to create a more sustainable tomorrow.
Job Summary
To support our extraordinary teams who build great products and contribute to our growth were looking to add a Senior Thermal Systems Engineer located in Littleton MA.
Reporting to the Product Manager the Senior Thermal Systems Engineer will own the end-to-end architecture analysis validation and deployment of direct-to-chip (D2C) cooling systems used to cool high-TDP CPUs/GPUs/accelerators. They will be the technical leader partnering with Product Management Mechanical/Electrical Engineering Manufacturing Quality Reliability and key customers to deliver robust scalable products that meet performance reliability and cost targets.
What a typical day looks like:
Own thermal architecture & modeling
- Define system-level thermal requirements (TDP range ΔT coolant temperature flow rate pressure drop acoustic & power budgets).
- Apply first principles in fluid dynamics and heat transfer to analyze design concept thermal performance
- Build and validate 1D/3D models (e.g. FloEFD Icepak MacroFlow ANSYS Fluent COMSOL) for cold plates manifolds quick-disconnects (QDs) pumps and CDUs.
- Perform sensitivity trade-offs (flow distribution fin geometry microchannel optimization TIM selection manifold topology).
Design liquid cooling subsystems
- Specify and refine cold plates CDUs manifolds hoses/QDs reservoirs filters sensors and controls.
- Collaborate with ME/EE on mechanical stack-up materials corrosion mitigation (galvanic compatibility) and leak risk reduction.
- Define DFX (DFM/DFA/DFT) and lead EVT/DVT/PVT from prototypes to mass production.
Validate and qualify
- Develop test plans for thermal performance pressure integrity leak detection long-term reliability (HALT/HASS) and contamination control (particulates biogrowth).
- Execute lab and rack-scale testing (pump curves flow balance ΔP mapping heat load emulation transient behavior).
- Drive failure analysis and corrective actions (FMEAs 8D/PPS).
Partner across the business
- Work with Product Management on PRDs roadmaps and business cases.
- Support manufacturing process development (leak/pressure test stations purge and fill cleanliness criteria) and supplier selection/qualification.
- Engage with customers: define requirements run pilots analyze fleet telemetry and support deployment at scale.
The experience were looking to add to our team:
- BS/MS in Mechanical Engineering or Aerospace Engineering or related field (PhD a plus).
- 5 years experience in thermal design/validation for high-power electronics (preferably data center/server/HPC).
- Excellent first principles knowledge in fluid dynamics thermodynamics and heat transfer
- Proven expertise in liquid cooling including CFD pressure drop/flow modeling and thermal metrology.
- Hands-on with lab instrumentation (flow meters pressure transducers thermocouples/RTDs DAQ leak detectors) and test automation (Python LabVIEW or similar).
- Experience bringing products from EVT DVT PVT ramp including DFX and supplier engagement.
- Excellent technical communication and documentation skills.
BO18
What youll receive for the great work you provide:
- Full range of medical dental and vision plans
- Life Insurance
- Short-term and Long-term Disability
- Matching 401(k) Contributions
- Vacation and Paid Sick Time
- Tuition Reimbursement
Job Category
Design Process & Technology EngineeringIs Sponsorship Available
NoJetCool is an Equal Opportunity Employer and employment selection decisions are based on merit qualifications and abilities. We do not discriminate based on: age race religion color sex national origin marital status sexual orientation gender identity veteran status disability pregnancy status or any other status protected by law. Were happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email and well discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at JetCool you must complete the application process first).
Required Experience:
Staff IC
Key Skills
- Computer Science
- Docker
- Kubernetes
- Python
- VMware
- C/C++
- Go
- System Architecture
- gRPC
- OS Kernels
- Perl
- Distributed Systems
About Company
Flex is the manufacturing partner of choice for streamlined product lifecycles. From design to end of life, our end-to-end services optimize efficiency.
