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Senior Java Developer (Remote):

Role overview

Qualifications

  • 15+ years of development hands-on experience
  • Senior-level, hands-on experience in Java development in a web-based environment
  • Strong experience with Spring Boot, REST APIs, relational databases, Flyway, Jenkins and/or GitLab
  • Proven DevSecOps experience including automated build/test/deploy and secure coding practices

Responsibilities

  • Design, develop, test, and maintain Java web applications using Spring Boot and related frameworks
  • Develop and integrate RESTful APIs, ensuring secure and reliable service communication
  • Build/maintain CI/CD pipelines using Jenkins and/or GitLab, and manage database versioning using Flyway
  • Troubleshoot and resolve production issues; optimize performance and reliability

Key facts

Hard skills

Other skills

  • Communication
  • Problem Solving

About the company

Marathon TS logo

Marathon TS

IT Services & IT Consulting

Marathon TS provides winning IT solutions for government and industry as a WBENC Certified Woman-Owned Small Business. We were founded in 2009 by IT professionals with a proven record of success in building IT services companies. Marathon TS provides digital solutions in cloud, mobile, big data, IoT, cybersecurity, and advanced analytics through user-centric designs driven by Agile (SAFe) methodologies and DevSecOps best practices. We also provide scalable support through our network of experts who specialist in specific technical or subject matter disciplines. As a Prime Contractor, we have successfully provided services to the U.S. Federal Government, including the Intelligence Community, the Department of State, the Department of Energy, the Defense Health Agency, and the Department of Veterans Affairs, as well as the U.S. Air Force and U.S. Navy. Private sector clients include IBM, Lockheed Martin, Booz Allen Hamilton, BAE Systems, Leidos, and more. Marathon’s success depends on building and maintaining strong relationships with our clients that are based on mutual trust, responsiveness, accountability, and customer satisfaction. Our goal is to understand our clients business as well as we understand our own. It is our responsibility to know our clients industry and the business challenges they face.

Company details

Company typeSME
IndustryIT Services & IT Consulting
Company size51 - 200

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Job description

Senior Java Developer (Remote):

Position Summary
We are seeking a Senior Java Developer to support web-based application development in a US Government Client environment. The resource will provide hands-on engineering across the full SDLC, applying modern Spring Boot development practices and DevSecOps delivery using Jenkins/GitLab CI/CD, with database change management via Flyway. The role also includes evaluating and integrating AI-enabled capabilities where appropriate and compliant.

Key Responsibilities
• Design, develop, test, and maintain Java web applications using Spring Boot and related frameworks.
• Develop and integrate RESTful APIs (and SOAP where needed), ensuring secure and reliable service communication.
• Apply DevSecOps practices throughout delivery:
• Build/maintain CI/CD pipelines using Jenkins and/or GitLab
• Implement automated testing (unit/integration) and quality gates
• Integrate security checks (SAST/DAST/dependency scanning) into pipelines
• Manage database versioning and deployments using Flyway (migrations, baseline strategy, rollback approach where applicable).
• Troubleshoot and resolve production issues; perform root-cause analysis; optimize performance and reliability.
• Support integration efforts (including COTS integration) and coordinate with security, operations, and architecture teams.
• Participate in Agile ceremonies, peer reviews, and technical documentation; uphold coding standards and best practices.
• Identify opportunities to incorporate AI (e.g., intelligent automation, summarization/classification, anomaly detection) while meeting US Government Client/security governance requirements.

Required Qualifications
• 15+ years of development hands on experience
• Senior-level, hands-on experience in Java development in a web-based environment.
• Strong experience with:
• Spring Boot (building services, configuration, profiles, security patterns)
• REST APIs and service integration
• Relational databases and SQL
• Flyway for database migration/version control
• Jenkins and/or GitLab for CI/CD
• Proven DevSecOps experience, including automated build/test/deploy and secure coding practices.
• Experience supporting applications in production, including incident support and operational stability.
• Strong written/verbal communication skills and ability to work independently on complex initiatives.

Preferred Qualifications
• Experience with AI-enabled application features or integrating AI services/APIs in an enterprise setting.
• Experience with COTS integration and enterprise modernization efforts.
• Experience in regulated environments (government/federal) with security/compliance constraints.
• Familiarity with containerization and cloud-ready deployment patterns (Docker/Kubernetes) is a plus.

Additional Required Skills/Experience:
o A degree from an accredited College/University in the applicable field of services is required. If the individual's degree is not in the applicable field then four additional years of related experience is required.
o Typically performs all functional duties independently.
o Note: Special credentials (licenses and/or certifications) may be required at the Task Order level on a case-specific basis."

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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