✦ Luna Orbit — Software Engineering

Principal Software Engineer (Contract) - Flight Test & Integration

at ALTEN

📍 Remote, US Remote 💰 $150K – $220K USD / year Posted March 28, 2026
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Position Details

Salary $150K – $220K USD / year
Type Contract
Experience mid
Exp. Years Not specified
Education Not specified
Category Software Engineering

About this role

ALTEN is seeking a Principal Software Engineer to contribute to the development and testing of satellite flight software, supporting space missions with full lifecycle involvement in a remote contract role.

Key Responsibilities

  • Develop and execute flight software tests
  • Contribute to full software lifecycle
  • Support mission concept development
  • Use modeling and simulation tools
  • Conduct validation and verification

Technical Overview

Role involves space software development, hardware-in-the-loop testing, modeling, simulation, using proprietary satellite digital twin software, and supporting space industry projects.

Ideal Candidate

The ideal candidate is a mid-level space software engineer experienced in developing and testing satellite flight software, familiar with space industry standards, modeling, and simulation, and capable of working autonomously on full lifecycle projects remotely.

Must-Have Skills

Development and testing of satellite flight softwareFull lifecycle of flight software developmentTest verification and validationExperience with space technology

Nice-to-Have Skills

Mission concept developmentModeling and simulationProposal writing

Tools & Platforms

Satellite digital twin softwareHardware in the Loop (HIL)FlatSat

Required Skills

Flight softwaresatellitehardware in the loopHILverification teststest methodologiesversion controlbug reportingtest planmodelingsimulationground support equipmentspace technology

Hard Skills

Flight softwareSatelliteHardware in the LoopHILVerificationsTest methodologiesVersioningBug reportingTest plan documentationIn-house modelingSimulationGround support equipmentSoftware developmentTestingSpace technology

Soft Skills

LearningGrowth mindsetAutonomous supportProblem-solvingCollaboration

Industry & Role

Industry Aerospace
Job Function Space satellite flight software development and testing
Role Subtype Space Software Engineer
Tech Domains Space & Satellite Technology, Hardware in the Loop, Simulation

Keywords for Your Resume

flight softwaresatellitehardware in the loopHILverification teststest methodologiesversion controlbug reportingtest planmodelingsimulationground support equipmentspace technologyspace systemsspaceflightspace engineeringspacecraft softwarespace industryspace mission

Deal Breakers

Lack of experience with space or satellite software, No familiarity with hardware-in-the-loop testing, Inability to work remotely

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