UNKNOWN

ADAPTED_NOW

BS Degree in a technical discipline or High School Diploma and 4+ years of experience in software development or software engineering. + Must have a current/active TS/SCI w/Polygraph security clearance and be willing and able to obtain another polygraph prior to start, if required.

ManTech

Associate CNO Software Engineer

FEED

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience.• Experience writing and maintaining Groovy-based CI/CD pipelines.• • Experience managing package repositories such as Artifactory or Nexus, including the use of Maven, Helm, Docker, or YUM for custom package creation and mirroring in air-gapped or restricted environments.

Associates Systems

Senior CI/CD Software Engineer

ea_via_bold

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience.• Experience writing and maintaining Groovy-based CI/CD pipelines.• • Experience managing package repositories such as Artifactory or Nexus, including the use of Maven, Helm, Docker, or YUM for custom package creation and mirroring in air-gapped or restricted environments.

Software Engineer Jenkins Groovy

Benefits: Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan. The EMMETT program, a next gen Space Domain Awareness (SDA) Indications and Warning (I&W) system, establishes a repository of resident space objects (RSOs), finds RSOs of interest, and provides data to ground operators.

YEAR

Peraton Inc

Software Quality Assurance Engineer

Practical experience with relational databases—specifically PostgreSQL (schema design, index usage, writing performant SQL)—and Redis for caching, state management, or message buffering. Bachelor’s degree in a STEM field (Computer Science, Computer Engineering, Software Engineering, or related discipline) or equivalent practical experience.

Grvty

Software Engineer

Benefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan. Collaborate Across Teams: Partner with end-user Analysts, Systems Engineers, and fellow Software Engineers to plan, design, and develop complex electronic data processing systems that deliver value to the Intelligence Community.

Full Stack Software Engineer

Being situated at the foot of the Rocky Mountains, Aurora provides opportunities to enjoy all the beautiful nature that Colorado has to offer, while also being a 20-minute drive from downtown Denver and 15-minutes to the Denver International Airport. ARKA Group L.P. (“ARKA”) is an advanced technologies company serving the U.S. military, intelligence community, and commercial space industry delivering next-generation solutions to support the national security space enterprise.

ARKA Group, L.P.

Staff Software Engineer (Secret) {S}

Operational Excellence: Maintain operational availability for live enterprise applications, conducting performance tuning and rapidly diagnosing complex system, network, and container issues within highly regulated or secure customer infrastructures. Product Feedback Loop: Collaborate closely with the core engineering and product teams to integrate crucial customer-specific feedback, field insights, and technical requirements directly into the main product roadmap.

Senior Forward Deployed Software Engineer (Secret) {S}

We are looking for a Full Stack Developer who will be responsible for designing, developing, and implementing frontend and backend software for a complex web application Translating software requirements into working and maintainable solutions within the existing application frameworks. Being situated at the foot of the Rocky Mountains, Aurora provides opportunities to enjoy all the beautiful nature that Colorado has to offer, while also being a 20-minute drive from downtown Denver and 15-minutes to the Denver International Airport.

Full Stack Software Engineer (TS/SCI) {S}

As a senior individual contributor, you lead by example—writing clean, maintainable code, actively participating in system design, championing modern DevSecOps practices, and raising the technical bar through thoughtful peer reviews. Strong hands-on experience with relational databases—specifically PostgreSQL (schema design, indexing, complex query optimization)—and Redis for state management, caching, or message queuing.

Senior Software Engineer

BS Degree in a technical discipline and 20+ years of technical work experience or High School Diploma and 24+ years of technical work experience. MANTECH seeks a highly technical and mission-focused Expert CNO Software Engineer to join our team in Aurora, CO.

Expert CNO Software Engineer

BS Degree in a technical discipline and 14+ years of technical work experience or High School Diploma and 18+ years of technical work experience. MANTECH seeks a highly technical and mission-focused Senior CNO Software Engineer to join our team in Aurora, CO.

Senior CNO Software Engineer

Beyond direct design, the architect is expected to drive technical consensus through trade studies, proactively identify and mitigate technical risks, act as the primary technical interface to leadership, government customers, and sub-contractor CA/CE’s, and actively participate in the mentorship and growth of the distributed engineering team, ultimately joining our team to help shape the development and delivery of custom solutions and providing significant opportunities for personal skill development at ARKA. ARKA is seeking an accomplished Software Architect/Principal Software Engineer who is deeply customer mission-focused and passionate about providing strategic technical leadership in the software architecture and design of complex government systems, requiring proven experience leading programs involving 30+ developers in a distributed environment.

Principal Software Engineer (TS/SCI) {S}

Computer Science, Software Engineering, Information Technology, Computer Engineering, Data Science, Systems Engineering, Network Engineering, Information Systems, Cloud Computing, Applied Mathematics, etc. Software Engineer, Java Developer, AWS Cloud Engineer, Linux Systems Developer, Backend Developer, Full Stack Developer, Cloud Software Engineer, Systems Engineer, DevOps Engineer, Application Developer, etc.

Cymertek

Software Engineer (Java, AWS, Linux)

Java Developer, Python Developer, Kafka Engineer, Backend Software Engineer, Data Pipeline Engineer, Distributed Systems Engineer, Real-Time Systems Developer, Streaming Data Engineer, Event-Driven Architect, Full Stack Developer, etc. Computer Science, Software Engineering, Information Technology, Computer Engineering, Data Science, Information Systems, Applied Mathematics, Systems Engineering, Network Engineering, Artificial Intelligence, etc.

Java / Python / Kafka Software Engineer

Practical experience using Git (branching, merging, resolving basic merge conflicts, submitting pull requests) and running automated tests within CI/CD workflows. In this role, you will work alongside senior engineers to develop, test, and maintain backend services, data workflows, and system interfaces supporting mission-critical capabilities.

Junior Software Engineer

Raytheon is seeking a highly motivated Platform Engineering candidate to be an active participant on the Platform development teams for our Modernized Infrastructure projects, working with cutting edge technologies in products that help to protect our warfighter. Participate in collaborative, cross-disciplined integrated product teams, often employing agile development operations to plan, specify, design, test, and integrate complex products and system solutions.

RTX Corp

2026 Raytheon Full Time Intern-Platform Product Design (Onsite)

CNO Software Engineer, Network Security Software Developer, Network Operations Engineer, Cybersecurity Software Developer, C and Python Software Engineer, Systems Software Developer, Embedded Software Engineer, Security Systems Developer, Network Infrastructure Developer, Cyber Defense Software Engineer, etc. Computer Science, Cybersecurity, Network Engineering, Software Engineering, Information Technology, Computer Engineering, Electrical Engineering, Applied Mathematics, Information Systems, Data Science, Telecommunications, etc.

CNO Software Developer with C and Python

Cross-Domain Solutions Developer, Secure Data Transfer Developer, Information Assurance Developer, Software Security Engineer, Cybersecurity Software Developer, Secure Systems Developer, Data Protection Software Engineer, Network Security Developer, Cross-Domain Architect, Secure Application Developer, Secure Integration Engineer, Software Developer for Classified Systems, Secure Communication Systems Developer, Information Security Software Engineer, Secure Systems Analyst, Cross-Domain Interface Developer, Secure Middleware Developer, Secure Systems Programmer, Embedded Systems Security Developer, etc. Computer Science, Software Engineering, Cybersecurity, Information Technology, Information Systems, Computer Engineering, Systems Engineering, Network Engineering, Applied Mathematics, Data Science, Information Assurance, Cryptography, Digital Forensics, Telecommunications, Artificial Intelligence, Secure Communications, Electrical Engineering, Computational Science, Secure Software Development, Embedded Systems Engineering, etc.

Cross-Domain Software Developer

Computer Science, Software Engineering, Information Technology, Computer Engineering, Applied Mathematics, Data Science, Electrical Engineering, Systems Engineering, Information Systems, Game Development, ect. Software Engineer, Full Stack Developer, Backend Developer, Frontend Developer, Application Developer, Systems Developer, Mobile Developer, Web Developer, DevOps Engineer, Cloud Developer, ect.

Software Design Engineer Jobs in Lone Tree, CO

Associate CNO Software Engineer ManTech

Senior CI/CD Software Engineer Associates Systems

Software Engineer Jenkins Groovy Associates Systems

Software Quality Assurance Engineer Peraton Inc

Software Engineer Grvty

Full Stack Software Engineer Peraton Inc

Staff Software Engineer (Secret) {S} ARKA Group, L.P.

Senior Forward Deployed Software Engineer (Secret) {S} ARKA Group, L.P.

Full Stack Software Engineer (TS/SCI) {S} ARKA Group, L.P.

Senior Software Engineer Grvty

Expert CNO Software Engineer ManTech

Senior CNO Software Engineer ManTech

Principal Software Engineer (TS/SCI) {S} ARKA Group, L.P.

Software Engineer (Java, AWS, Linux) Cymertek

Java / Python / Kafka Software Engineer Cymertek

Junior Software Engineer Grvty

2026 Raytheon Full Time Intern-Platform Product Design (Onsite) RTX Corp

CNO Software Developer with C and Python Cymertek

Cross-Domain Software Developer Cymertek

Software Developer Cymertek

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