Senior Solar Design Engineer

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture Partners, Alpine Space Ventures, and others – with an additional $500M in signed contracts across commercial and US government customers – we’re mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space.

The rise of heavy-lift launch vehicles is shifting the industry from an era of mass constraint to one of mass abundance, and we believe this new era demands a fundamentally different class of spacecraft. Engineered to survive the harshest radiation environments and to fully capitalize on today’s and tomorrow’s massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits.

With multiple launches planned through 2026 and 2027, we're Building Bigger to develop the solar system and become a Kardashev Type II (K2) civilization. If you are a motivated individual who thrives in a fast-paced environment and you're excited about contributing to the success of a groundbreaking Series C space startup, we’d love for you to apply.

The Role

Critical to achieving K2's vision of deploying at scale across MEO, GEO, cis-lunar, and deep space are the solar arrays. Scaling to constellations requires engineers who can span technical domains from module technology and electrical power system interactions to soft goods, deployment mechanisms, structures, integration, and high-rate production.

You will drive the design, manufacturing, testing, and deployment of high-power solar arrays at production scale. The development timelines, operating environments, mission lifetimes, and cost targets we are pursuing demand meaningful innovation — you will tackle these challenges with the full resources and support of K2.

Responsibilities

• Design and deliver solar array electrical and mechanical subsystems, contributing to system architecture and lifecycle performance margin analysis

• Develop and maintain electrical performance degradation models across environment variations including radiation, thermal cycling, and UV exposure

• Define and execute assembly-level acceptance and qualification test procedures

• Collaborate with avionics, structures/mechanisms, software, and production teams on solar system requirements, integrated qualification/acceptance testing, and on-orbit data review

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