Flight Sciences Thermal Engineer (Level 2)

**Description:** Space is a critical domain, connecting our technologies, our security and our humanity/. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future/. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve/. We're creating future/-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision/. We're erasing boundaries and forming partnerships across industries and around the world/. We're advancing spacecraft and the workforce to fuel the next generation/. And we're reimagining how space can connect us, ensuring security and prosperity/. Join us in shaping a new era in space and find a career that's built for you/. The Mechanical Engineer - Thermal Engineering /(Level 2/) will support the design, analysis, and validation of thermal systems for advanced aerospace and defense applications/. This role involves conducting thermal analyses, developing thermal control solutions, and collaborating across multidisciplinary teams to ensure system performance in extreme environments/. The selected candidate will perform steady/-state and transient thermal modeling, support hardware development and test activities, and contribute to system/-level integration efforts/. This position requires strong analytical skills, attention to detail, and the ability to translate requirements into effective thermal design solutions/. Key Responsibilities: - Perform steady/-state and transient thermal analyses for aerospace or defense systems - Develop and maintain thermal models using analytical and numerical methods - Support design of thermal control systems including conduction, convection, and radiation solutions - Generate thermal predictions, margins, and design documentation - Support environmental and qualification testing /(TVAC, vibration, thermal cycling/) - Collaborate with structural, fluids, avionics, and systems engineering teams - Present analysis results to internal stakeholders and program leadership - Support root cause investigations and anomaly resolution efforts **Basic Qualifications:** - Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related STEM discipline - 2/+ years of professional experience in thermal engineering or heat transfer analysis /(internships/co/-ops may be considered/) - Experience performing thermal analysis using tools such as Thermal Desktop, SINDA/FLUINT, ANSYS, or similar - Working knowledge of heat transfer principles /(i/.e/. conduction, convection, radiation/) and thermodynamics - Ability to obtain and maintain a Secret security clearance, thus US Citizenship is required **Desired Skills:** - Master's degree in Mechanical or Aerospace Engineering - Experience supporting aerospace, missile, spacecraft, or hypersonic programs - Familiarity with thermal protection systems /(TPS/) or high/-temperature materials - Experience with transient thermal modeling and coupled thermal/-structural analysis - Understanding of fluid systems and convective heat transfer - Experience supporting thermal vacuum /(TVAC/) or environmental test campaigns - Knowledge of industry standards /(NASA, DoD, MIL/-STD/) - Proficiency in MATLAB or Python for data reduction and automation - Strong technical writing and presentation skills **Security Clearance Statement:** This position requires a government security clearance, you must be a US Citizen for consideration/. **Clearance Level:** Secret **Other Important Information You Should Know** **Expression of Interest:** By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match/. Should this match be identified you may be contacted for this and future openings/. **Ability to Work Remotely:** Onsite Full/-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility/. **Work Schedules:** Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees/. Schedules range from standard 40 hours over a five day work week while others may be condensed/. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits/. **Schedule for this Position:** 9x80 every other Friday off **Lockheed Martin is an equal opportunity employer/. Qualified candidates will be considered without regard to legally protected characteristics/.** **The application window will close in 90 days; applicants are encouraged to apply within 5 /- 30 days of the requisition posting date in order to receive optimal consideration/.** At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges/. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work/. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility/. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work/. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility/. If this sounds like a culture you connect with, you're invited to apply for this role/. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs , and apply for roles that align with your qualifications/. **Experience Level:** Experienced Professional **Business Unit:** SPACE **Relocation Available:** Possible **Career Area:** Mechanical Engineering **Type:** Full/-Time **Shift:** First

Created: 2026-04-02