Senior RF Engineer

SpireGlobal is a space-powered data and analytics platform that offers unique insights and powerful solutions about Earth from the ultimate space‑view, enabling organizations to act confidently and efficiently. Leveraging its proprietary multi‑purpose satellite constellation and predictive analytics, Spire provides commercial and government entities an unprecedented competitive advantage through knowledge sourced from space. Spire Global is currently undertaking projects ranging from the design of advanced satellite communication and navigation systems to RF monitoring constellations.

In support of the next‑generation proprietary communication system, we are seeking a Senior RF Engineer with expertise in RF systems design, RF transceiver, low‑noise and power amplifier design, antenna arrays, and a solid background in space‑based communications, navigation, or RF monitoring systems.

• Contribute proactively to the design and development of RF subsystems for our next generation of satellite communication, navigation, or RF monitoring systems.
• Perform component selection and circuit‑level design using PCB software (Altium preferred), along with simulation (CST, ADS preferred) where required, including transceivers for UHF, S, X, and Ka bands.
• Manage RF modules through production and test.
• Conduct RF module testing and fault‑finding at bench level, environmental level (EMC and thermal vacuum testing), and spacecraft level.
• Lead RF testing, validation, and space qualification efforts for new and existing systems.
• Develop test plans and operational procedures.
• Provide technical consultancy support to software engineering, payload, satellite operations, and manufacturing teams.

• BSc, MSc, or Ph.D. in Telecommunications, Microwave, or RF Electronics Engineering.
• 5+ years of experience designing, developing, and testing RF systems.
• Hands‑on RF simulation, design, and manufacturing experience and fault‑finding during test.
• PCB schematic capture and layout for RF circuits.
• Experience with laboratory or field RF testing and equipment such as Network Analyzer, Signal Analyzer, and Signal Generator.
• Ability to measure performance of passive and active circuits, provide data that backs up system requirements, including phase noise, compression points, chain losses, and signal analysis.
• Skill in tuning RF circuits to achieve optimal performance.
• Proficiency in simulation tools such as ADS, CST, HFSS, and MATLAB.
• Proven track record of promoting cooperation and teamwork.
• Demonstrated problem‑solving skills and solution‑oriented approaches to challenges.
• Flexibility to shifting priorities and operational requirements.
• Attention to detail, strong organization, and clear communication skills.
• Proficiency in scripting languages and testing tools (Python preferred).

• Strong background in high‑frequency RF systems (e.g., Ku‑band, Ka‑band).
• End‑to‑end RF system analysis, simulation, and optimization.
• Knowledge of frequency spectrum management.
• Knowledge of state‑of‑the‑art RF analog and high‑speed digital signal processing techniques and technologies using Xilinx/AMD MPSoC/RFSoC.
• Passive and active antenna design, and antenna measurement techniques.
• Experience in power supply design and EMI mitigation techniques.
• Experience with digital circuit design, including microcontroller, FPGA, and high‑speed transceivers.

Spire operates a hybrid work model. This position requires a minimum presence of three days per week in the office.

Access to U.S. export‑controlled software and/or technology may be required for this role. If needed, Spire will arrange the necessary licenses; candidates do not need to have them before applying.

Spire is a global company and we believe our success stems from the diverse viewpoints, skills, and experiences of our employees. We are an equal‑opportunity employer and are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity, or veteran status. All candidates who receive a conditional offer will be required to complete a background check, which may include criminal history and employment verification.