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Principal Thermal Design Engineer

NOKIA
United States, Pennsylvania, Allentown
7360 Windsor Drive (Show on map)
Sep 19, 2025

As a Principal Thermal Design Engineer at Nokia, you will play a crucial role in advancing our optoelectronic component designs by developing innovative thermal solutions. You'll collaborate closely with cross-functional teams across various locations, contributing your expertise to tackle complex challenges and enhance product performance. Our fast-paced and dynamic work environment fosters creativity and encourages you to prototype and validate solutions through experimentation. You will have ample opportunities to interact with vendors and drive specifications, ensuring seamless integration of thermal solutions into our products. Your analytical skills and detail-oriented mindset will be key as you perform FEA analyses and create production-level designs, all while contributing to the development of new platforms that meet cost and efficiency goals.

Come create the technology that helps the world act together.

We are a B2B technology innovation leader pioneering the future where networks meet cloud.

At Nokia you will have a positive impact on people's lives and help build the capabilities needed for a more productive, sustainable, and accessible world.

Be part of a culture built on an inclusive way of working where we are open to your ideas, you are empowered to take risks and are encouraged to be fearless in bringing your authentic self to work.

What we offer

Nokia offers flexible and hybrid working schemes, continuous learning opportunities, well-being programs to support you mentally and physically, opportunities to join and get supported by employee resource groups, mentoring programs and highly diverse teams with an inclusive culture where people thrive and are empowered.

Nokia is committed to inclusion and is an equal opportunity employer

Nokia has received the following recognitions for its commitment to inclusion & equality:

  • One of the World's Most Ethical Companies by Ethisphere
  • Gender-Equality Index by Bloomberg
  • Workplace Pride Global Benchmark

At Nokia, we act inclusively and respect the uniqueness of people.

Nokia's employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.

We are committed to a culture of inclusion built upon our core value of respect.

Join us and be part of a company where you will feel included and empowered to succeed.

*Design and implement innovative thermal cooling solutions for cutting-edge optoelectronic components utilizing conduction, convection, and/or phase change based heat transfer.
*Conduct thermal, thermo-mechanical, and mechanical FEA analyses to model and validate designs.
*Lead experimental validation of thermal solutions to ensure performance meets specifications.
*Collaborate with cross-functional teams to develop assembly procedures and optimize product designs.
*Conduct Failure Mode and Effects Analysis (FMEA) on proposed thermal designs to mitigate risks.
*Create detailed production-level CAD models and drawings for manufacturing readiness.
*Work closely with vendors to finalize specifications and manage procurement of thermal components.
*Engage with manufacturing and operations to ensure new platforms meet cost, yield, and cycle time targets.

You have:

  • MS or PhD (preferred) in Mechanical Engineering (0-10 years' experience)
  • Expertise in FEA and CFD, with proficiency in ANSYS and FloTherm
  • Solid experience with Pro/Engineer, Creo, SolidWorks, or AutoCAD
  • Strong written and verbal communication skills

It would be nice if you also had:

  • Knowledge of optical design principles and industry qualification specifications
  • Familiarity with SQL databases and Agile product data management SW
  • Experience in conducting experiments to validate modeling
  • Understanding of thermal solution assembly procedures

Come create the technology that helps the world act together

Nokia is committed to innovation and technology leadership across mobile, fixed and cloud networks. Your career here will have a positive impact on people's lives and will help us build the capabilities needed for a more productive, sustainable, and inclusive world.
We challenge ourselves to create an inclusive way of working where we are open to new ideas, empowered to take risks and fearless to bring our authentic selves to work

What we offer

Nokia offers continuous learning opportunities, well-being programs to support you mentally and physically, opportunities to join and get supported by employee resource groups, mentoring programs and highly diverse teams with an inclusive culture where people thrive and are empowered.

Nokia is committed to inclusion and is an equal opportunity employer

Nokia has received the following recognitions for its commitment to inclusion & equality:



  • One of the World's Most Ethical Companies by Ethisphere
  • Gender-Equality Index by Bloomberg
  • Workplace Pride Global Benchmark


At Nokia, we act inclusively and respect the uniqueness of people. Nokia's employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.
We are committed to a culture of inclusion built upon our core value of respect.

Join us and be part of a company where you will feel included and empowered to succeed.
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