Software Engineer

Aetherflux • Seattle, WA

9d

About The Position

As a Software Engineer at Aetherflux, you will build the systems that control, operate, and scale our spacecraft and ground infrastructure. This includes flight software, simulation, mission control systems, and the tooling needed to test and operate hardware in real time.

This is a highly ownership-driven role where you’ll work across the stack—from low-level systems interacting with hardware to higher-level services that enable mission operations. You’ll collaborate closely with hardware teams (propulsion, power, avionics) to bring up systems, validate performance, and ensure reliable operation in demanding environments.

Requirements

• Bachelor’s degree in Computer Science, Computer Engineering, or related field
• 3+ years of experience building production software systems
• Strong programming skills in languages such as C++, Python, or Rust
• Experience working close to hardware, distributed systems, or real-time systems
• Solid understanding of systems fundamentals (operating systems, networking, concurrency)
• Experience working in fast-paced, engineering-driven environments

Nice To Haves

• Experience with flight software, embedded systems, or robotics
• Background in aerospace, autonomous systems, or high-reliability environments
• Experience building simulation frameworks or hardware-in-the-loop testing systems
• Familiarity with Linux-based systems and low-level debugging
• Experience with cloud infrastructure or distributed systems for mission operations
• Track record of owning systems end-to-end in high-ownership environments

Responsibilities

• Design, build, and maintain software for spacecraft systems, ground systems, and mission operations
• Develop flight software that interfaces directly with hardware and supports real-time control
• Build simulation and testing frameworks to validate system behavior before deployment
• Collaborate with hardware engineers to integrate, test, and debug systems end-to-end
• Write performant, reliable code for resource-constrained and mission-critical environments
• Develop internal tools to support testing, automation, and operational workflows
• Participate in system bring-up, integration, and launch preparation activities
• Monitor and support on-orbit operations, including debugging and performance optimization
• Contribute to system architecture decisions across software and hardware boundaries
• Balance speed, reliability, and scalability in a fast-paced development environment

Benefits

• Equity in Aetherflux
• Employees and their eligible dependents may enroll in medical, dental, and vision insurance; long-term disability and life insurance for employees
• 401(k) retirement savings plan
• Paid time off
• 10 paid holidays per calendar year
• Paid leave for new parents
• Daily lunch in the office and a fully stocked kitchen with beverages and snacks

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level