About Lodestar

Lodestar is the software-first space prime for the hardware abundant era. We believe the next generation of space systems will be defined not by launch, fuel, and batteries, but by software, compute, and autonomous effects.

Space is becoming an increasingly contested warfighting domain, with growing threats to the satellites and critical infrastructure underpinning modern life. Maintaining Western strategic advantage will require a new generation of space capabilities built for the speed, complexity and scale of future conflict.

Lodestar is addressing this challenge by building superintelligent spacecraft capable of operating autonomously in orbit. Combining our capabilities in advanced adversarial tracking & characterisation, onboard edge compute and autonomous effect delivery, our technology enables spacecraft to execute complex rendezvous and proximity operations (RPO), detect and classify objects, predict intent and respond to orbital threats - even in denied environments. By integrating sensing, reasoning and action into a single autonomous system, we aim to deliver decisive situational awareness and space superiority for defence and commercial operators.

Backed by elite deep-tech venture capital, international space agencies and government stakeholders, Lodestar is rapidly expanding its footprint across the U.S. Space Force, the Department of War, and major commercial satellite operators. We are a lean, high-autonomy team of engineers and operators building the space defense infrastructure of tomorrow.

Join us.

About the Job

We are seeking a highly motivated Mid-level Avionics hardware engineer to join our multidisciplinary team developing next-generation space systems. You will be responsible for designing, implementing, and validating advanced avionics architectures for autonomous platforms. This role offers the opportunity to work hands-on across the full lifecycle, from concept and simulation to hardware testing and on-orbit readiness.

What You’ll Do

Define and own the avionics subsystem architectures.
Design, layout, bring-up and validation of PCBs for high-speed digital avionics systems.
Lead design reviews and drive technical decisions across the hardware lifecycle, working with systems and software teams.
Conduct hardware debugging and system-level testing using oscilloscopes, logic analysers, and other lab instrumentation.
Build, test, and maintain electrical harnesses and wiring assemblies for flight and development hardware.
Collaborate closely with mechanical, systems and software teams to ensure seamless integration of avionics hardware into flight systems.
Support environmental qualification and verification testing (EMC, vibration, thermal vacuum, etc.)

Qualifications

BEng/MEng in Electrical Engineering, related field or equivalent experience.
3+ years of professional experience delivering/owning complex electronics hardware projects.
Proven expertise in complex PCB design, layout, and hardware bring-up/testing.
Knowledgeable in high-speed interface design and signal integrity analysis.
Skilled in hardware debugging, fault isolation, and performance characterisation.
Experienced with lab test equipment including oscilloscopes, DAQs, logic analysers, and power supplies.
Experience defining board or system-level architecture and leading design reviews.
Hands-on experience with electrical assembly, including soldering, crimping, and harness fabrication.

Preferred Skills & Experience

Experience designing boards for Linux-based SoCs and FPGAs.
Familiarity with NVIDIA SoMs.
Hands-on experience with FPGA design and integration.
Proficient with PCB simulation workflows, including signal integrity, power integrity, and EMC/thermal analysis.
Background in space-rated electronics and high-reliability design practices, including radiation effects analysis, fault-tolerant architectures, and qualification processes for space systems.

Compensation & Benefits

Pay Range:
(E2) Mid-level Engineer: £55,000 - £75,000 / year
Meaningful equity incentives as part of our employee option pool