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ISYS Technologies

IT services and cybersecurity for government

Flight Software Test Engineer

Full-TimeDeadline 7/28/27
$120k - $128k
Senior
Bachelor's
Littleton, CO, USA
HybridThe posting describes the position as on-site or remote.
QA & TestingTest Automation Engineering
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • A bachelor's degree in computer science, aerospace, or a related equivalent engineering degree is required.
  • At least 5 years of software verification experience is required.
  • Previous software verification experience is required.
  • Leadership ability is required.
  • High-level Python proficiency for software test engineering is required.
  • Linux knowledge is required.
  • MATLAB knowledge is required.
  • Attention to detail and self-motivation are required.
Responsibilities
  • Work with the Guidance, Navigation, Controls, and Propulsion flight software team.
  • Verify flight requirements through the final run for record.
  • Review and understand requirements and their associated success criteria.
  • Create Python test cases and scripts to fully verify success criteria.
  • Develop Python-based testing through the final qualification review process.
  • Review existing Guidance, Navigation, Controls, and Propulsion verification tests in regression, identify failures, understand the issues, and implement corrections.
  • Run software and hardware test beds.
  • Collaborate with team members, outside model teams, developers, and principal engineers.
  • Deliver qualified requirement success criteria through the final qualification process, Python test scripts and utilities, DOORS documentation, multiple result files, and a checklist.
Desired Qualifications
  • Previous Orion and/or Orion software verification experience is desired.
  • Previous flight software or simulation software experience is desired.
  • Guidance, Navigation, Controls, and Propulsion knowledge is desired.
  • C++ knowledge is desired.
  • DOORS knowledge is desired.

About the company

ISYS Technologies provides IT solutions and engineering support for government and private sector clients, specializing in mission support, software and systems engineering, and cyber/IT services in both classified and unclassified environments. Its services include IT consulting, network design and implementation, cloud computing, and cybersecurity assessments to protect critical infrastructure across domains like space, intelligence, weather, and homeland security for the DoD and federal civilian agencies. In February 2026 it was acquired by Cook Inlet Region, Inc. (CIRI) and now operates under OSC Global, a CIRI subsidiary focusing on IT, cybersecurity, and software services, with Teresa Porter remaining president and CEO. The goal is to broaden CIRI’s portfolio and support long-term growth by expanding capabilities in defense-grade IT and mission-focused engineering across multiple domains while working in both classified and unclassified environments.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Littleton, Colorado

Founded

1989

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Simplify's Take

What believers are saying

  • CIRI bought I2X on February 2, 2026, adding balance-sheet support and cross-sell reach.
  • The $243 million NRL contract extends five years and anchors technical demand.
  • Winning OASIS+ in January 2025 expands access to Intel, R&D, and engineering buyers.

What critics are saying

  • I2X depends heavily on federal buyers; one protest or recompete can crater revenue.
  • Integration under CIRI after February 2026 distracts leadership and muddies culture.
  • If Navy or NASA spending shifts, I2X loses its highest-value growth engine.

What makes ISYS Technologies unique

  • Founded in 1990, I2X combines classified and unclassified cyber with systems engineering.
  • The March 6, 2025 NRL award proves deep electronic-warfare credibility.
  • OSC Global gives I2X a larger platform across defense, intelligence, and civilian work.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Unlimited Paid Time Off
  • Flexible Work Hours
  • Hybrid Work Options
  • Remote Work Options
  • Paid Vacation
  • Paid Sick Leave
  • Paid Holidays
  • 401(k) Retirement Plan
  • 401(k) Company Match

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
Associated Press
Feb 2nd, 2026
Alaska Native corporation CIRI acquires IT firm I2X Technologies to expand $1B+ portfolio

Cook Inlet Region, Inc. (CIRI), an Alaska Native regional corporation, has acquired I2X Technologies, a provider of IT software, systems engineering and data management solutions to government and private-sector clients. Financial terms were not disclosed. I2X, founded in 1990 and headquartered in Littleton, Colorado, employs nearly 280 staff. The company will operate under OSC Global, CIRI's wholly owned IT and cybersecurity subsidiary formed in 2024. The acquisition expands CIRI's diverse business portfolio, which currently exceeds $1 billion in assets. CIRI, created under the Alaska Native Claims Settlement Act in 1972, has nearly 10,000 shareholders. CEO Swami Iyer said the purchase strengthens the company's portfolio and positions it for long-term growth.