> Markdown version of [/jobs/ext/2787561-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/2787561-senior-software-engineer). 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). --- # Senior Software Engineer - **Company:** Peerless Technologies Corporation - **Location:** St. Louis, MO, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Software Applications, JIRA, Computer Engineering, Continuous Delivery, Continuous Integration, Linux, DevOps, Elasticsearch, Issue Tracking Systems, Python (Programming Language), MongoDB, Node.Js, NoSQL, OAuth, OpenID, Software Systems, Okta, ReactJS, Istio, Software Troubleshooting, Git, Containerization, AngularJS, Gitlab-ci, Kubernetes, Information Technology, Front End Software Development, Restful APIs, Software Version Control, Docker, Jenkins - **Published:** September 8, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8808681/senior-software-engineer ## About the Role Bachelor's degree or higher in Computer Science, Computer Engineering, or related field Minimum 5 years of experience in full-stack web development Experience with front-end frameworks such as React or Angular Experience developing RESTful web services Experience with server-side programming languages such as Go, Node.js, or Python Experience working with Linux operating systems Experience with containerization technologies such as Docker or Podman Experience using version control systems such as Git Experience with issue tracking tools such as JIRA Strong communication, technical documentation, and organizational skills Ability to communicate technical concepts clearly to technical and non-technical stakeholders Ability to work in a dynamic environment and take ownership of project components Ability to obtain a Top Secret clearance Preferred Qualifications 10 years of experience in full-stack software development Experience developing authentication, authorization, or security solutions (Keycloak, Open Policy Agent, OIDC, OAuth2) Experience working with NoSQL databases such as Elasticsearch or MongoDB Experience with Kubernetes, Istio, or Helm Experience implementing CI/CD pipelines using tools such as GitLab CI or Jenkins ## Description Peerless is searching for an experienced Senior Software Engineer to design, develop, and maintain modern software applications supporting mission-critical systems. The selected candidate will contribute to the development of new capabilities, resolve issues in existing applications, and integrate software systems with external services and tools in a dynamic and collaborative engineering environment. The successful candidate will also assist in troubleshooting software issues, implementing new features, and supporting DevOps and CI/CD practices to streamline development and deployment processes. ## Related Videos - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [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) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) ## 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) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [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) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read)