Software Developer - Senior
 Systems Engineering Solutions Corporation | |
life insurance, paid time off, 401(k)
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 United States, Virginia, Winchester | |
 Jun 24, 2026 | |
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Provide the government customer information technology (IT) services and technical expertise to support a thoughtful transition from team-level Scrum agile methodology to Scaled Agile Framework (SAFe). The Contractor will support both the operational transition and ongoing development activities, ensuring continuity of delivery while establishing SAFe practices, structures, and governance. Additional information about the SAFe framework can be found at SAFe 6.0 (scaledagileframework.com). In addition, we will assist the government customer with the design, architecture and implementation of a secure application development environment (ADV) specifically engineered to accelerate the organization's SAFe transformation. This environment must integrate automated security controls directly into the Continuous Delivery Pipeline and prioritize developer productivity and autonomy. Furthermore, the ADV must enable Zero Trust architecture that scales across distributed teams without compromising the Lean-Agile mindset. The program will support the following activities: SAFe implementation, software development/enhancement/deployment, O&M, and information & system security. Location: This position will be on-site in Winchester, VA. Clearance: Top Secret with ability to get SCI Provide the government customer information technology (IT) services and technical expertise to support a thoughtful transition from team-level Scrum agile methodology to Scaled Agile Framework (SAFe). The Contractor will support both the operational transition and ongoing development activities, ensuring continuity of delivery while establishing SAFe practices, structures, and governance. Additional information about the SAFe framework can be found at SAFe 6.0 (scaledagileframework.com). In addition, we will assist the government customer with the design, architecture and implementation of a secure application development environment (ADV) specifically engineered to accelerate the organization's SAFe transformation. This environment must integrate automated security controls directly into the Continuous Delivery Pipeline and prioritize developer productivity and autonomy. Furthermore, the ADV must enable Zero Trust architecture that scales across distributed teams without compromising the Lean-Agile mindset. The program will support the following activities: SAFe implementation, software development/enhancement/deployment, O&M, and information & system security. Location: This position will be on-site in Winchester, VA. Clearance: Top Secret with ability to get SCI The Software Developer - Senior provides senior-level software design, development, testing, integration, and technical leadership support for the program. This role supports modernization efforts, including the development, deployment, and maintenance of cloud-based microservices and application capabilities, while sustaining legacy systems until transition is complete. The Senior Software Developer supports technical project milestone reviews, code architecture sessions, development best practices, and peer-level interaction with project managers, architects, systems engineers, and Agile team members. * Lead or support design, development, testing, integration, and deployment of software applications, microservices, APIs, and system enhancements. * Provide technical guidance to development staff and collaborate with project managers, systems engineers, and architects. * Participate in requirements analysis, solution design, user story decomposition, estimation, development, testing, quality assurance, and deployment. * Support the modernization of legacy applications and development of decoupled cloud-based microservices. * Ensure code meets functional, non-functional, security, database, and deployment requirements. * Support DevSecOps practices including CI/CD, automated deployment, Infrastructure as Code, security scanning, monitoring, logging, and observability. * Support code reviews, pair programming, refactoring, technical debt management, and architecture improvements. * Assist in maintaining technical documentation, system design documentation, release notes, and knowledge repositories. Required Skills: * Bachelor's Degree and 8+ years or more of experience * Minimum 8 years of relevant software development experience. * Experience designing, developing, testing, and managing application development projects. * Minimum 4 years of experience in one of the following fields of expertise: AWS cloud-based solutions, C#, Java, or Python. * Experience supporting the full SDLC, including planning, requirements, development, testing, quality assurance, and deployment. * Experience with application integration, custom capability development, and modification of existing code. * Strong understanding of DevSecOps, CI/CD, automated testing, secure development, and code quality practices. Preferred Skills * Current SAFe Software Engineer (ASE) certification. * Experience developing cloud-native or cloud-agnostic microservices for AWS environments. * Experience supporting systems across unclassified, Secret, and Top Secret enclaves. * Experience with GitLab, Jira, Confluence, Azure DevOps migration, CI/CD pipelines, automated testing, and technical debt tracking. * Experience with data migration, APIs, enterprise reporting, Oracle, AWS S3, Amazon EKS, and modernization of legacy systems. * Familiarity with RMF, ATO, PoAM remediation, Splunk monitoring, configuration management, and vulnerability remediation. SES provides a competitive salary and the following benefits:
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