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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Back-End Software Engineer - **Company:** Sigmatech, Inc. - **Location:** Huntsville, AL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, C Sharp (Programming Language), C++ (Programming Language), Computer Engineering, Database Design, Firmware, Python (Programming Language), PostgreSQL, Linux System Administration, Microsoft SQL Server, Oracle (Applications), Software Engineering, SQL Databases, System Testing, TypeScript, Backend, Git, Containerization, Kubernetes, Information Technology, Data Management, Api Design, Terraform, Docker, Microservices - **Published:** August 6, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9075811/senior-back-end-software-engineer ## About the Role Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or related field 5+ years of software development experience Experience with: Python and C/C++ SQL databases (PostgreSQL, SQL Server, Oracle) Git version control Linux environments Unit, integration, and system testing frameworks and practices Security+ certification (or ability to obtain within 6 months), Active Secret or TS clearance Experience with: Kubernetes Docker containers Terraform or Infrastructure as Code C# and Typescript Firmware or embedded environment Bazel or similar build system Experience supporting Army, Air Force, Space Force, or C5ISR programs, Strong problem-solving skills Ability to work in cross-functional engineering teams Excellent written and verbal communication skills Experience working directly with government customers ## Description The Back-End Software Engineer will be responsible for architecting and developing mission-critical backend applications, microservices, and data platforms that support defense operations and advanced analytics. The engineer will work closely with software, data, and systems engineers to deliver secure, scalable solutions using modern development practices, containerized environments, and automated CI/CD pipelines. This position requires strong expertise in Python and C/C++, database design, API development, and secure software engineering principles. The position resides within Sigmatech's Internal Research and Development (IRAD) directly reporting to the Chief Technology Officer (CTO) supporting the development and delivery of customer-focused technical solutions across defense programs. In addition to project work, the selected candidate will have the opportunity to contribute to Sigmatech Technology Solutions Group (TSG). This unique combination provides exposure to both mission execution and technology innovation, allowing engineers to influence emerging capabilities, prototype advanced solutions, and contribute directly to the company's long-term technical strategy. *Selected candidate for this position must be able to obtain and maintain a DoD Secret clearance. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)