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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   You will be responsible for the design & validation of radio-frequency (RF) and microwave electronics to be hosted on some of the largest, most powerful, rapidly designed, and rapidly manufactured satellites ever deployed in space. In your first 6 months, you will work with a multidisciplinary team of antenna, RF, field programmable gate array (FPGA), digital signal processing (DSP), software, mechanical, and electrical engineers in order to prototype your systems and refine your designs. In your first two years you will have contributed to developing cutting-edge RF systems that will fly in space.   Responsibilities   Lead research, design, and procurement of antenna systems Qualify radio-frequency and antenna hardware through environmental testing, including vibration, shock, thermal, and thermal vacuum (TVAC)   Assist with design and validation testing for radio-frequency and microwave hardware from UHF through Ka band, including antennas, low noise amplifiers, power amplifiers, filters, high-speed converters, and other RF electronic components   Execute development and production tests to meet internal and external customer needs   Collaborate closely with internal and external stakeholders to integrate your designs into the spacecraft system   Qualifications   Bachelor’s degree in computer, electrical, aerospace engineering, or other relevant science, technology, or mathematics discipline   8+ years of experience in microwave, RF, or antenna engineering    Experience with RF test equipment such as vector network analyzers (VNA), spectrum analyzer, etc.   Experience with anechoic chambers and antenna measurement assets such as near field scanners   Ability to work in a fast-paced and high velocity start-up atmosphere   Nice to Have   Mast er’s or Ph.D. degree in a field related to antenna design and analysis   Experience with environmental testing for space electronics such as thermal, vibration, TVAC, radiation, and EMI/EMC testing per standards such as SMC-S-016   Experience with RF systems testing, including antenna characterization and insertion loss tests   Experience with antenna and electromagnetic modeling and analysis software tools such as Ansys Electronics Desktop HFSS and Altair FEKO   Experience with software defined radio hardware development including high speed RF data converters (digital to analog and analog to digital converters), clock trees, and da