Flight Software Engineer - Satellite Autonomy & Real-Time

Front Door Defense; Los Angeles (CA); On-site; USD 150,000 - 180,000; Full time

Benefits offered by this job

Equity in Apex

World-class healthcare

PTO 15–20 days+

401(k) with employer matching

Parental leave

Daily catered lunch

Office in Playa Vista

Equipment and tools

Job summary

Apex Technology, Inc. is seeking a Flight Software Engineer in Los Angeles to design, develop, and own software driving autonomous operations of satellite buses.

You will work with internal teams and customers to align solutions with requirements and company objectives, ensuring 24/7 reliability in a fast-paced aerospace environment. The role emphasizes Python, C++, and Rust programming, real-time distributed systems, and embedded Linux (Yocto) experience, with opportunities to impact spacecraft

Qualifications

• 2.5+ years of total flight software experience.
• Bachelor’s degree in CS, EE or equivalent.
• Strong proficiency in Python, C++, Rust.
• Experience with real-time systems running on distributed hardware.
• Knowledge of embedded Linux operating systems, 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, Protobuf and encryption.

Responsibilities

• 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 defects.
• Collaborate with cross-functional teams to baseline product requirements and technical roadmaps.

Skills

Python

C++

Rust

Real-time systems

Distributed hardware

Education

Bachelor’s degree in CS, EE or equivalent

Tools

Yocto

CCSDS

ECSS

TCP/IP

UDP

Protobuf

Linux

Job description

Apex Technology, Inc. is seeking a Flight Software Engineer in Los Angeles to design, develop, and own software driving autonomous operations of satellite buses.

You will work with internal teams and customers to align solutions with requirements and company objectives, ensuring 24/7 reliability in a fast-paced aerospace environment. The role emphasizes Python, C++, and Rust programming, real-time distributed systems, and embedded Linux (Yocto) experience, with opportunities to impact spacecraft