Thermal Engineer – Advanced Prototype Systems

About the role

Connexion Systems & Engineering is hiring for a 3‑year contract Thermal Engineer position located in Bedford, MA with a hybrid work model (4 days onsite, 1 day remote). Candidates must be eligible to obtain a Top Secret security clearance (active clearance not required to apply). The role involves working on first‑of‑a‑kind prototype systems for national security missions across space, air, ground, and underwater platforms, providing hands‑on thermal engineering from concept through testing, and collaborating across multidisciplinary teams on advanced thermal management, optical and communication systems, electronics, structures