<Back to Search
Senior Software Engineer
St Louis, MOApril 2nd, 2026
Job 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.RequirementsBachelor's degree or higher in Computer Science, Computer Engineering, or related fieldMinimum 5 years of experience in full-stack web developmentExperience with front-end frameworks such as React or AngularExperience developing RESTful web servicesExperience with server-side programming languages such as Go, Node.js, or PythonExperience working with Linux operating systemsExperience with containerization technologies such as Docker or PodmanExperience using version control systems such as GitExperience with issue tracking tools such as JIRAStrong communication, technical documentation, and organizational skillsAbility to communicate technical concepts clearly to technical and non-technical stakeholdersAbility to work in a dynamic environment and take ownership of project componentsAbility to obtain a Top Secret clearancePreferred Qualifications10 years of experience in full-stack software developmentExperience developing authentication, authorization, or security solutions (Keycloak, Open Policy Agent, OIDC, OAuth2)Experience working with NoSQL databases such as Elasticsearch or MongoDBExperience with Kubernetes, Istio, or HelmExperience implementing CI/CD pipelines using tools such as GitLab CI or Jenkins
170 matching similar jobs near St Louis, MO
- Senior Software Systems Engineer (Berkeley)
- Associate Software Engineer (Berkeley)Berkeley, MOApril 1st, 2026
- Senior Software Systems Engineer (Berkeley)
- Phantom Works Software Architect (Berkeley)
- Systems Engineer (Experienced or Lead)
- Associate Software EngineerSt Louis, MOApril 1st, 2026
- Phantom Works Software Architect (Berkeley)
- Software Engineer – Systems (Experienced and Senior) (Berkeley)
- Systems Integration Engineer (Experienced or Lead) (Berkeley)
- Systems Integration Analyst (Experienced or Lead) (Berkeley)
- F-15 Mission Systems Software Engineer (Associate, Experienced, & Senior) (Berkeley)
- Missions Systems Software Engineer - Embedded (Associate, Experienced, Senior) (Berkeley)St Louis, MOApril 2nd, 2026
- Systems Integration Analyst (Experienced or Lead) (Berkeley)
- F-15 Mission Systems Software Engineer (Associate, Experienced, & Senior) (Berkeley)
- Systems Integration Engineer (Experienced or Lead) (Berkeley)
- Missions Systems Software Engineer - Embedded (Associate, Experienced, Senior) (Berkeley)Berkeley, MOApril 2nd, 2026
- Systems and Project Integration Engineer (Mid-Level or Senior) (Berkeley)
- Systems Engineer (Experienced or Lead) (Berkeley)
- Associate Systems Engineer (Berkeley)
- Software Developer (Mid Level or Senior), Autonomy and Mission Planning (Berkeley)
- F-22 Senior System Integration Engineer
- F-22 Senior System Integration Engineer (Berkeley)
- Associate Systems Engineer (Berkeley)
- F-22 Senior System Integration Engineer (Berkeley)
- Systems and Project Integration Engineer (Mid-Level or Senior)
- Associate Systems Engineer
- Software Engineer–Developer (Development)
- Information Technology Professional (IT Support)
- Software Developer (Mid Level or Senior), Autonomy and Mission Planning (Berkeley)
- Systems Engineer (Experienced or Lead) (Berkeley)
- Information Technology Professional (IT Support)
- Information Technology Professional (IT Support)
- Software Engineer–Developer (Development) (Berkeley)
- Mid-Level F-22 Associate System Integration Engineer (Berkeley)
- Information Technology Professional (IT Support)
- Information Technology Professional (IT Support)
- Information Technology Professional (IT Support)
- Information Technology Professional (IT Support)
- Information Technology Professional (IT Support)
- Information Technology Professional (IT Support)