Integration and Test Engineer- Software

Four Sea Group is a 100% employee-owned technical mission support company based in Denver, Colorado. Founded by an aerospace industry veteran and PhD astrophysicist, we support complex defense, space, software, systems, and mission-focused programs for government and industry partners. What sets FSG apart is the caliber of our people and the way we operate: we are a reputation-driven team of highly skilled engineers and technical experts who are brought in for their depth, judgment, and ability to solve difficult problems. As an employee-owned company, we have built our compensation, benefits, and culture around a simple idea: when the company succeeds, that value should go back to the people doing the work.

About the role

Four Sea Group is seeking an Integration and Test Engineer specializing in software integration to establish, integrate, troubleshoot, and stabilize complex software environments supporting secure customer missions.

This role contributes to Four Sea Group’s ability to transform independently developed applications, commercial software, infrastructure, and supporting services into reliable operational capabilities. The engineer will serve as a senior technical resource across software and infrastructure boundaries, helping programs resolve difficult integration challenges, maintain controlled software baselines, and improve the repeatability of installation, configuration, and deployment activities.

The ideal candidate combines a strong software-engineering foundation with advanced Linux, scripting, cloud, container, CI/CD, and configuration-management experience. This role requires broad technical judgment, ownership of integration approaches within the assigned environment, and the ability to guide teams through complex problems affecting program readiness, stability, and delivery.

Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, Information Technology, or a related technical field, or equivalent practical experience.
• Ten or more years of relevant software engineering, software integration, DevOps, system integration, or application-deployment experience.
• Active Top Secret clearance needed to start with CI Poly required
• Substantial object-oriented programming experience supporting enterprise-level applications using established software patterns.
• Advanced experience integrating and supporting multi-tiered, distributed, or microservice-based applications.
• Experience installing, configuring, and integrating commercial off-the-shelf and custom-developed software.
• Experience establishing, configuring, or leading software integration and test environments.
• Strong experience analyzing application and infrastructure logs and resolving complex software, environment, and configuration issues.
• Advanced experience working in Linux environments.
• Strong scripting and automation experience.
• Experience using Git-based version control and collaborative configuration workflows.
• Experience with at least one major cloud platform, such as AWS, Azure, or Google Cloud.
• Experience with Docker, Kubernetes, OpenShift, or comparable container technologies.
• Experience with CI/CD tools such as GitLab CI, Jenkins, or comparable platforms.
• Experience establishing and maintaining configuration-management processes for software baselines.
• Ability to define integration approaches and independently resolve complex issues spanning multiple technical domains.
• Ability to communicate technical risks, dependencies, decisions, and tradeoffs to engineering, program, and customer stakeholders.
• Experience guiding technical work or coordinating integration activities across multiple engineering teams.
• Strong written and verbal communication skills.
• All candidates must work in-person in Aurora (no virtual)

Preferred Qualifications

• Active TS/SCI with CI Poly
• Experience supporting U.S. government, defense, intelligence, or other secure mission environments.
• Experience serving as a technical lead or primary authority for a software integration environment.
• Experience deploying and troubleshooting applications in production Kubernetes environments.
• Experience supporting isolated, restricted, or classified software environments.
• Experience with infrastructure-as-code or advanced configuration-management tools.
• Experience supporting automated software deployment, test, and security pipelines.
• Experience identifying patterns across integration failures and driving systemic corrective action.
• Experience mentoring engineers or developing technical leads.
• Experience working within Agile or SAFe software-development environments.

Salary

The salary range for this role is $152,000.00 – $262,000.00 per year. The salary range provided is a good faith estimate representative of all experience levels. Four Sea Group, Inc. considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, key skills, and market conditions.

Application Deadline

This position is expected to remain open through September 30, 2026. The company may adjust this deadline based on business needs and will update the posting as appropriate.

Benefits

FSG is 100% ESOP-owned, which means our employees share directly in the company’s growth. We offer competitive compensation, a strong employer-funded retirement plan, generous PTO and flexible time-off options, comprehensive health, dental, vision, life, short-term disability, and long-term disability benefits, plus a generous medical stipend that gives employees more choice and flexibility. Our model is intentionally built to keep more value with employees through salary, retirement, benefits, and ownership. You will work alongside experienced engineers and technical leaders on meaningful defense, space, software, systems, and mission support work, with room to grow as a technical expert, mentor, program contributor, or future leader.

EEO Statement

Four Sea Group is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, sex, sexual orientation, gender identity or expression, religion, national origin, marital or familial status, age, disability, veteran status, militaryserviceor application for military service.