RF Engineer

Why the Stratosphere?

From first principles, it is the obvious place to build. Low-Earth Orbit (LEO) satellites move rapidly hundreds of kilometers above Earth. Our vision is an autonomous solar-powered bird operating around 20 kilometers, or 65,000 ft, above most clouds and weather. Much closer to Earth. Persistent by flying in circles. Effectively a Cell Tower in the Sky. That persistence is priceless. That is the promise of Skylink.

Start small. Build upward.

The first product of Icarus is a small, affordable solar-powered Stratospheric bird. A platform designed to be light, simple, and built under constraints. Affordability is the foundation. More importantly, it solves a real use case now. A wedge into the market through intelligence and communications. A beachhead that proves the model, attracts customers who need it so badly they’ll use it even before it’s perfect, and opens the path to market disruption at scale.

The vision: Skylink

The vision goes further than building one plane or even one fleet. The goal is Skylink: a persistent Stratospheric grid delivering continuous intelligence, uninterrupted communications, and global connectivity. A new layer of infrastructure. The next backbone of how we see, sense, and connect the world.

Our mission at Icarus is to re-establish and maintain dominance in the Stratosphere. We asked ourselves: what is the fastest and best way to execute this? The answer was not to start with a massive, billion-dollar program. It was to start with affordable birds, scale endurance step by step, and build upward into Skylink.

Icarus was founded on the belief that the Stratosphere is the Forgotten Frontier and that reclaiming it will define the next era of aerospace and what is possible from the sky. We build solar-powered aircraft that fly at 60,000 ft for weeks at a time, delivering persistent, affordable, and scalable presence from this layer of the atmosphere.

Mission

Re-establish and maintain dominance in the Stratosphere.

Levels

We are hiring at Level I, Level II, and Level III through this posting. Your level will be determined during the interview process based on your technical skills, relevant experience, and demonstrated scope of ownership.

What you’ll do

• Design, build, and fly RF and communications systems for long-endurance stratospheric aircraft
• Own RF subsystems end to end: architecture, link budgets, component selection, integration, test, and flight validation
• Design and integrate radios, antennas, RF front ends, and data links for LOS and BLOS operation
• Drive RF performance through analysis, simulation, bench testing, and flight data
• Lead EMI/EMC mitigation across avionics, power, and payload systems
• Work closely with avionics, GNC, electrical, mechanical, and software teams to deliver robust flight communications
• Support integration, production bring-up, and flight operations in the desert

What we’re looking for

• 2+ years designing and deploying real RF systems for aerospace, defense, UAVs, or similarly demanding environments
• Strong fundamentals in RF theory, electromagnetics, and communications systems
• Experience with link budgets, antenna design or selection, RF propagation, and system-level trade studies
• Hands-on experience with RF test equipment (spectrum analyzers, VNAs, signal generators, power meters)
• Experience debugging RF systems in the field, not just in simulation
• Comfort working from first principles and validating performance through test and flight data
• Ability to move fast, own outcomes, and operate with minimal supervision

Why Icarus

1. Meaningful equity
2. Top market salary and bonuses
3. Health, dental, and vision insurance
4. Factory in El Segundo
5. Real ownership, real hardware, real flight
6. Small team, massive responsibility
7. High signal (engineering) to noise (management) culture
8. Dream desk setup
9. Daily lunch
10. Unlimited celsius

This is not a normal engineering job

1. We are pioneers, not corporate managers. Icarus deliberately optimizes for a high signal (engineers) to noise (management) ratio, where engineering, flight, and execution matter more than process, politics, or management overhead
2. You will work side by side with the CEO and a small team of world-class builders. You will own your subsystem end to end. Design it. Build it. Break it. Fix it. Validate it in the desert. Fly it. Then do it again, faster
3. We expect full extreme ownership. This is a high-trust, no-BS team, and everyone pulls their weight
4. We are hiring across the stack: mechanical, aerodynamics, RF, GNC, electrical, avionics, power electronics, energy storage, software, and systems
5. We want builders. No hand-holding. No fluff. No fake projects. No slide decks. No sitting in meetings all day. Just raw engineering, real hardware, and real flight
6. You must thrive under pressure, learn fast, troubleshoot in the field, and push hardware to its limits. We move fast. We go to Mojave at 4 am in the morning. We expect results and an obsession with quality and speed
7. You will be a core executor of flight systems, taking them from concept to reality and driving rapid iteration loops. You will work across design, integration, testing, and flight. If you want real ownership, real hardware, and real flight milestones, this is it.

No tourists. No bystanders. Only builders.

Hiring process

1. Phone screen with the hiring manager via Microsoft Teams
2. Onsite presentation and panel Q&A

US salary range

• Level I: $100,000 - $140,000 USD per year
• Level II: $140,000 - $180,000 USD per year
• Level III: $180,000 - $220,000 USD per year

These ranges reflect annual base salary. Final level and base salary will be determined individually based on relevant skills, experience, and the scope of responsibility.

The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are considered part of Icarus' total compensation package.

We’re an equal opportunity employer. We welcome all applicants without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.