Senior Software Developer
Listed on 2026-08-22
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Software Development
Senior Developer, DevOps, Software Engineer, Full Stack Developer
Everforth ECS is seeking a Senior Software Developer to work in our O’Fallon, IL office.
ECS Federal LLC is looking for a Senior Software Developer who possesses and applies expertise on multiple complex work assignments. The ECS Team provides development and support of GATES, a mission-critical application providing cargo and passenger manifesting and in transit visibility requirements for the DoD. We are seeking a Java Developer with experience developing Web applications to be part of the larger team.
Assignments may be broad in nature, requiring originality and innovation in determining how to accomplish tasks. Operates with appreciable latitude in developing methodology and presenting solutions to problems. Contributes to deliverables and performance metrics. As a Senior Software Developer, the selected individual will work hands‑on with developer and systems administrators to integrate our solutions and products for our government customer.
Key responsibilities are to deliver Dev Sec Ops pipeline solutions and proof of concepts for Continuous Integration/Configuration, Continuous Development, Continuous Delivery/Deployment, Continuous Testing, Continuous Security and Continuous Monitoring. The Dev Sec Ops Engineer is also responsible for driving solutions that meet the customers' technical, financial and business requirements, and supporting a legacy system in the process of being modernized while being hosted in the cloud utilizing Dev Sec Ops processes.
Salary Range: $110,000 - $120,000
General Description of Benefits Qualifications- Bachelor's Degree
- Java, HTML5 technologies, Angular, Spring, RHEL, SQL, Oracle RDBMS, JavaScript, XML, Agile methodologies, Web Logic, Tomcat, Gradle/Maven/Ant, Python
- Experience with Dev Sec Ops pipeline
- Secret Clearance
- Security + Certification or the ability to obtain immediately following employment.
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