> Markdown version of [/jobs/ext/4180510-software-developer](https://www.wearedevelopers.com/jobs/ext/4180510-software-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer - **Company:** TEKSYSTEMS INC. - **Location:** Aurora, CO, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** C (Programming Language), Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Confluence, JIRA, C++ (Programming Language), Linux, DevOps, Distributed Systems, Java Web Services, Python (Programming Language), Object-Oriented Software Development, Red Hat Enterprise Linux, Reliability Engineering, Software Engineering, Software Systems, Systems Integration, Virtualization Technology, Docker for Aws, Backend, Containerization, Kubernetes, Atlassian Tools, Bitbucket, Front End Software Development, Software Version Control, Microservices - **Published:** October 5, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8870732/software-developer ## About the Role Bachelor's degree in a science/technical field or equivalent experience Experience level varies by role (Mid, Senior, Principal, Sr. Principal, Staff) Strong experience in Java and object-oriented design Experience as a front-end, back-end, or full-stack developer Experience working in Agile environments Proficiency with version control systems Active Top Secret clearance with ability to obtain SCI and CI Poly Preferred / Nice-to-Have Skills Additional languages: C++, C, Python, JavaScript Microservices and distributed systems experience Hardware/Software integration or satellite/ground system exposure Linux (Red Hat), virtualized environments, and AWS Docker & Kubernetes (containerization) DevOps or Site Reliability Engineering background Atlassian tools (Jira, Confluence, Bitbucket) Experience leading teams (for senior-level roles) ## Description We are seeking Software Developers and Senior-Level Software Engineers to support a high-impact Defense contract. These roles involve designing, developing, and integrating software solutions in a secure environment, working across front-end, back-end, and full-stack systems. Ideal candidates have strong Java experience and a background in hardware/software integration., Design, develop, test, and troubleshoot Java-based applications Work in Agile development teams across the full software lifecycle Build and integrate software with hardware systems and distributed services Support system integration, testing, deployment, and automation efforts Collaborate using modern DevOps and version control tools