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# Senior Flight Software Engineer (Remote)

- **Company:** The Apex
- **Location:** Los Angeles, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $185,000.0 - $215,000.0
- **Contract:** Permanent contract
- **Skills:** Software Applications, Unit Testing, C++ (Programming Language), Distributed Systems, Linux on Embedded Systems, Protocol Buffers, Python (Programming Language), Linux Distribution, Network Protocols, Software Systems, Systems Integration, TCP/IP, Rust (Programming Language), Apex Code, Real Time Systems, System-level Testing, Yocto, Integration Tests
- **Published:** May 21, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=daceb0804cefc8ba

## About the Role

Do you have experience in Systems integration?, * U.S. Person status is required as this position needs to access export controlled data.

 * 8+ years of total flight software experience
 * Bachelor's degree in CS, EE or equivalent.
 * Strong proficiency in programming languages such as Python, C++, Rust.
 * Experience with real time systems running on distributed hardware.
 * Knowledge of embedded Linux operating systems, system administration and creating Linux distributions (Yocto).
 * Familiarity with satellite systems and protocols, such as CCSDS, and ECSS.
 * Experience with software integration, testing, and validation for real-time and distributed systems.
 * Familiarity with network protocols (TCP/IP, UDP), secure communication systems, Protobuf and encryption.

## Description

As a member of the Flight Software team, you will design, develop, and own the software driving the autonomous operation of Apex's satellite buses. You will be responsible for developing mission critical systems that operate reliably 24/7, ensuring that Apex's spacecraft continue to operate in all scenarios.

In this role, you will work closely with both internal teams and external customers, aligning your solutions with company objectives and user requirements. We are looking for motivated engineers who are eager to solve complex problems with a focus on practicality and scalability, and who thrive in a dynamic, fast-paced environment., * Design, implement and own mission critical software applications for satellite systems.

 * Support commissioning of spacecraft during launch and early operations and ensure software systems remain functional during critical operations.
 * Own spacecraft software solutions through the full lifecycle from initial design to deployment.
 * Perform unit testing, integration testing, and system-level testing of software components, identifying and resolving any defects or issues.
 * Collaborate with cross-functional teams to baseline product requirements and technical roadmaps.


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