Full-Time

NASA Orion Spacecraft Unit Test Software Engineer

Posted on 4/24/2025

CACI

CACI

10,001+ employees

Provides government contracting technology and services

Compensation Overview

$62.8k - $128.6k/yr

No H1B Sponsorship

Remote in USA

Remote

Position can be performed remotely from any state.

US Citizenship Required

Category
Aerospace Engineering
Software Engineering (1)
Required Skills
Software Testing
C/C++
Requirements
  • Must be a U.S. Citizen.
  • B.S. in Aerospace, Electrical, Computer or Systems Engineering, Computer Science, or related disciplines required.
  • Experience programming in C++.
  • Experience with C++ software unit testing in Aerospace or other industries, e.g., commercial software, oil and gas, petrochemical, etc. Any related intern or co-op experience is valued.
  • Must be flexible, open to new challenges in a dynamic environment, and possess strong technical expertise combined with strong verbal and written communication skills.
  • Ability to manage multiple priorities with little supervision.
  • Must be a highly responsible, team-oriented individual with strong work ethic.
  • Must have highly developed coordination and organization skills.
Responsibilities
  • Review test plans with the Orion FSW prime contractor FSW Subject Matter Experts (SMEs).
  • Create thorough unit tests from test plans using Google Test, Gcov, and gMock that test C/C++ classes both structurally and functionally.
  • Evaluate unit test case results including pass/fail results with path coverage, loop boundary limits, and Modified Condition/Decision Coverage (MC/DC).
  • Troubleshoot issues with failed test cases.
  • Perform C/C++ code reviews to spot errors in the code logic.
  • Collaborate with prime contractor SMEs for resolving unit test case issues.
Desired Qualifications
  • M.S. in Aerospace, Electrical, Computer, Systems, or Software Engineering, Computer Science, or related disciplines required.
  • Experience debugging unit test issues including determining the difference between test framework problems created by the tester and problems with the flight code.
  • Experience with Google Test, Gcov, and gMock.
  • Experience programming in Python.
  • Experience with Agile software development methodology.
  • Experience with software configuration management tools such as Git and Subversion.
  • Experience in avionics and flight software development and/or testing for human-rated space vehicle or satellites.
  • Familiarity with NASA's Orion spacecraft.
  • Experience or knowledge of space vehicle systems, e.g., avionics, command and telemetry, command and control, timeline/vehicle management, service module control, systems management, crew life support, displays, power, propulsion, thermal, guidance, navigation and control, communications and tracking, NASA Docking System, etc.

CACI International Inc. provides technology and professional services to U.S. government clients, focusing on national security and modernization. It earns most of its revenue through long-term government contracts that fund engineering, intelligence, logistics, cybersecurity, data analytics, and IT solutions for defense, intelligence, and federal civilian agencies. Its products and services work by delivering specialized technical expertise, secure systems, and mission-support capabilities that help agencies run operations more efficiently and securely. CACI differentiates itself through its deep domain knowledge in national security, a proven track record of delivering high-quality, reliable solutions, and a skilled workforce that can execute complex, long-duration contracts. The company’s goal is to be a trusted partner for government modernization needs by providing advanced technology solutions and mission support that enhance national security and operational effectiveness.

Company Size

10,001+

Company Stage

IPO

Headquarters

Reston, Virginia

Founded

1962

Simplify Jobs

Simplify's Take

What believers are saying

  • Third-quarter fiscal 2026 revenue rose 8.5% to $2.4 billion.[4]
  • Second-quarter fiscal 2026 results raised guidance across all metrics.[8]
  • Large awards like the $306 million DLA Global Model task order deepen backlog.[5]

What critics are saying

  • Federal budget delays, shutdowns, or continuing resolutions can freeze task-order awards.
  • Lowered adjusted EPS guidance shows margin conversion is lagging revenue growth.[8]
  • Manufacturing expansion raises execution risk in RF, photonics, and space payload delivery.

What makes CACI unique

  • CACI specializes in national security IT, intelligence, and mission support for U.S. agencies.
  • Fiscal 2026 first-quarter contract awards reached $5.0 billion, with 2.2x book-to-bill.[1]
  • CACI blends software, systems integration, and manufacturing under one defense-focused operating model.

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Benefits

Health Insurance

Flexible Work Hours

401(k) Retirement Plan

401(k) Company Match

Wellness Program

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

1%

2 year growth

1%
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CACI International has contributed optical communications and sensing technology to NASA's Artemis II mission, the first crewed flight of the Space Launch System rocket and Orion spacecraft. The company developed an optical communications modem module in partnership with MIT Lincoln Laboratory, integrated into the Orion Artemis II Optical Communications System payload. The O2O system successfully delivered high-definition video and data from the lunar vicinity to Earth via laser link, marking a milestone in deep-space communications. Through its acquisition of ARKA Group, CACI also supplied cryogenic-level sensing technology for the SLS rocket, supporting propellant-level measurement and engine shutdown determination during ascent. CACI's hardware is developed across multiple US locations, including Danbury, Connecticut, and Florham Park, New Jersey.

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CACI Closes $500 Million Offering of 6.375% Senior Notes

CACI International Inc ( NYSE: CACI ) today announced it closed a $500 million offering of 6.375% unsecured senior notes due in 2033 (the “notes”). The notes will be issued as part of the same series as CACI’s 6.375% senior notes due 2033 originally issued in June 2025. CACI intends to use the net proceeds from the offering to repay certain indebtedness under its revolving credit facility that was incurred to pay a portion of the purchase price of its acquisition of ARKA Group L.P. and costs and expenses related thereto. About CACI CACI International Inc (NYSE: CACI) is a national security company with 27,000 talented employees who are Ever Vigilant in expanding the limits of national security. We ensure our customers’ success by delivering differentiated technology and distinctive expertise to accelerate innovation, drive speed and efficiency, and rapidly anticipate and eliminate threats. Our culture drives our success and earns us recognition as a Fortune World's Most Admired

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CACI International has closed a $500 million offering of 6.375% unsecured senior notes due in 2033. The notes will be issued as part of the same series as CACI's 6.375% senior notes originally issued in June 2025. The company intends to use the net proceeds to repay indebtedness under its revolving credit facility, which was incurred to finance its acquisition of ARKA Group L.P. and related costs. CACI is a national security company with 27,000 employees. The firm is a member of the Fortune 500, the Russell 1000 Index and the S&P MidCap 400 Index.

Yahoo Finance
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CACI International, a defence and intelligence solutions provider, has surged 180% over the past five years, reaching $630.12 per share and outperforming the S&P 500's 72.6% total return. The stock has gained 29.6% in the last six months. The company demonstrated solid long-term performance with revenue growing at 8.8% compound annual growth rate over five years. More impressively, earnings per share expanded at 14% annually, indicating improved profitability. However, CACI's backlog growth has been weak, averaging just 3.6% year-on-year over the last two years. This underwhelming performance suggests increasing competition may be challenging the company's ability to secure new orders. The stock currently trades at 20.6× forward price-to-earnings ratio.

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