About WISeSat :
WISeSat AG is building a cutting-edge Low Earth Orbit (LEO) satellite constellation to deliver secure messaging across Switzerland and Europe. Leveraging proprietary post-quantum encryption, we provide trusted communications for private clients and institutional partners.
The Role :
We're seeking an experienced RF Engineer to design, build, and optimize the RF links that power our constellation—covering
satellite-to-ground, satellite-to-user, and inter-satellite
connections. You'll report to the Project Manager and work across the full lifecycle, from architecture and design through integration, validation, launch support, and operations.
What You'll Do :
* Own RF system design for space and ground segments to ensure reliable, high-performance links in LEO.
* Perform
link budgets
, interference analyses, and end-to-end performance simulations; optimize for bandwidth, latency, and availability targets.
* Define and validate payload RF requirements; contribute to hardware selection and architecture (antennas, LNAs/HPAs, filters, converters, transceivers).
* Manage and technically steer selected industrial partners and suppliers; track deliverables and quality.
* Ensure compliance with
international spectrum regulations
and support frequency coordination activities.
* Collaborate closely with Telecom, Systems, and Software teams to align RF designs with mission objectives and constraints.
* Document designs, test plans, and results; contribute to design reviews and operational readiness.
What You Bring :
* Master's degree
in RF, Telecommunications, or Electrical Engineering.
* 3–5 years
of hands-on experience in RF design and test for satellites or comparable wireless systems.
* Strong grasp of LEO-specific RF challenges.
* Familiarity with
spectrum regulation and frequency coordination
for satellite communications.
* System-level thinking: telecom architecture for constellations (e.g., band selection such as S-/L-band, payload configurations, and inter-satellite link concepts—optical or RF).
* Ability to lead simulations and modeling of signal propagation, interference, and system performance.
* Clear communication skills, collaborative mindset, and meticulous attention to detail; comfortable working with cross-functional teams and external partners.
* Working proficiency in
English
;
French
is a plus.
Why WISeSat :
Join a small, high-impact team where your decisions matter. You'll follow our next-generation satellites from design through launch and operations—challenging, rewarding, and genuinely innovative.