Defense Software Sustainment Engineer

Accelint; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Accelint's Lyntris defense platform seeks an experienced Technical Debt Engineer to modernize and sustain complex software in mission-critical environments. You will debug production code, perform root-cause analysis, and refactor legacy systems while preserving functionality and delivery schedules.

Collaborating with software developers, systems engineers, architects, and government stakeholders, you will improve quality, performance, and interoperability through DevOps practices and automated

Qualifications

• Bachelor's degree in a technical discipline.

Responsibilities

• Debug, analyze, and resolve complex software defects across large-scale, distributed software systems.
• Perform root cause analysis to identify software defects, performance bottlenecks, integration issues, and reliability concerns.
• Refactor legacy software to improve maintainability, modularity, extensibility, testability, and long‑term sustainability while preserving existing functionality.
• Identify, prioritize, and remediate technical debt in collaboration with engineering teams and program leadership.
• Improve software quality through static analysis, automated testing, code reviews, performance optimization, and modern software engineering practices.
• Develop, maintain, and optimize CI/CD pipelines and automated build, test, and deployment processes.
• Utilize DevOps tools such as SonarQube, GitLab CI/CD, automated testing frameworks, and containerized development environments to support continuous software improvement.
• Maintain and troubleshoot multi‑language build environments using tools such as CMake, Conan, Maven, Poetry, and NPM.
• Debug and resolve interoperability and integration issues across distributed software systems utilizing standards‑based APIs, messaging frameworks, and communication protocols.
• Collaborate with software developers, systems engineers, architects, and government stakeholders to implement sustainable software improvements while minimizing program risk and maintaining delivery schedules.
• Support software integration, verification, validation, configuration management, and release activities.
• Document software changes, technical debt remediation efforts, and engineering recommendations.
• Performs other duties as assigned.

Skills

Debugging

Root-cause analysis

Performance optimization

DevOps practices

CI/CD pipelines

Multi-language builds

Education

Bachelor's degree in CS/SE/CE or related field

Tools

SonarQube

GitLab CI/CD

Containerized environments

CMake

Conan

Maven

Poetry

NPM

ActiveMQ

DDS

ZeroMQ

Job description

Accelint's Lyntris defense platform seeks an experienced Technical Debt Engineer to modernize and sustain complex software in mission-critical environments. You will debug production code, perform root-cause analysis, and refactor legacy systems while preserving functionality and delivery schedules.

Collaborating with software developers, systems engineers, architects, and government stakeholders, you will improve quality, performance, and interoperability through DevOps practices and automated