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Early Flight Software Engineer

Join Apex as an Early Flight Software Engineer to develop mission-critical software for autonomous satellite operations.

Location
Los Angeles
Compensation
Not disclosed
Level
mid
Type
full time · On-site

Posted by employer 5 days ago

First seen on Joblaze 3 days ago

Last verified on the company career page 1 day ago

Apply at Apex Space → Save job Scanned from apexspace.com

What you'll build

  • Design mission critical software applications for satellite systems
  • Support commissioning of spacecraft during launch
  • Own spacecraft software solutions through the full lifecycle
  • Perform unit testing and integration testing of software components
  • Collaborate with cross-functional teams

Must have

  • 1+ 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

Nice to have

  • Familiarity with satellite systems and protocols
  • Experience with software integration, testing, and validation
  • Familiarity with network protocols
  • Experience with secure communication systems

Practical constraints

  • U.S. Person status is required

Requirements

Experience
1+ years
Education
Bachelor's degree
Visa
No sponsorship (stated in posting)

Not disclosed in this posting: compensation.

Benefits

401k Match Equity/Stock Options Health Insurance Parental Leave

Joblaze summary

In this role, the Early Flight Software Engineer at Apex Space is tasked with designing and developing software that ensures the autonomous operation of satellite buses. Key skills include proficiency in programming languages like Python and C++, as well as experience with real-time systems and embedded Linux. This position is ideal for engineers with at least a year of flight software experience who are comfortable in a fast-paced startup environment. Apex is a rapidly growing company that emphasizes collaboration and innovation in the aerospace sector.

Joblaze insights

  • Listed 3 days ago — first seen on Joblaze September 23, 2026. Last confirmed on Apex Space's careers page September 25, 2026.
  • Python appears in 17.3% of 2961 comparable mid other roles in United States; UDP appears in 0.2% of 2961 comparable mid other roles in United States.

Quick facts

Is the Early Flight Software Engineer role remote?
No — this is an on-site role in Los Angeles.
How much experience is required?
At least 1 year of relevant experience for this Early Flight Software Engineer role.
Where is the role based?
Apex Space is hiring for this position in Los Angeles.
What's the tech stack?
Joblaze extracted these technologies from the posting: C++, CCSDS, ECSS, Embedded Linux, Protobuf, Python.
What seniority level is this role?
Apex Space targets mid-level candidates for this position.
Is this full-time or contract?
Full-time for this Early Flight Software Engineer role at Apex Space.

From the original posting

About the Role

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.

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 any defects or issues.

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

Requirements:

  • U.S. Person status is required as this position needs to access export controlled data.

  • 1+ 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.

#LI-AB1

What We Offer For Full-time Employees:

  • Shared upside: Receive equity in Apex, letting you benefit from the work you create

Standard company text repeated across Apex Space's postings is omitted here.

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