Senior Full Stack Developer

LMI • Remote,

1d • $140,000 - $250,000 • Remote

About The Position

LMI is seeking a talented, mission-driven Senior Full Stack Software Engineer to design, develop, and modernize secure, scalable, cloud-native software applications and platforms supporting critical federal missions. The role contributes to transforming how government organizations build, deploy, integrate, and manage digital capabilities through intuitive applications, robust backend services, and reliable platform integrations.

In this hands-on engineering role, you will design, develop, integrate, and maintain full-stack software solutions using TypeScript, Angular, Node.js or Python, PostgreSQL, and API-driven architectures. You will own complex features and production applications, make architectural decisions, and build secure, maintainable solutions for cloud and on-premises environments. You will work with product teams, platform engineers, cybersecurity professionals, and government stakeholders to deliver capabilities that improve operational efficiency, accelerate software delivery, and support mission-critical operations.

LMI is a digital solutions provider focused on accelerating government impact through innovation and speed. It invests in technology and prototypes ahead of need and provides commercial-grade platforms and mission-ready AI to federal agencies. LMI serves the defense, space, healthcare, and energy sectors and is headquartered in Tysons, Virginia.

The position is remote. Applicants must be U.S. citizens and must have or be eligible to obtain and maintain a U.S. government security clearance. The target salary range is $140,000–$250,000; actual compensation depends on factors including location, internal equity, business considerations, client contract requirements, and candidate qualifications.

Requirements

• At least seven years of professional software engineering experience, including ownership of production full-stack applications.
• Strong experience with TypeScript, Angular, JavaScript, and modern front-end development.
• Strong experience developing back-end services and RESTful APIs using Node.js or Python.
• Experience with PostgreSQL, SQL, and relational database design.
• Ability to independently lead complex features, make architectural decisions, and deliver production-ready solutions.
• Experience with authentication, authorization, secure application development, automated testing, and production troubleshooting.
• Experience with Git, CI/CD pipelines, and modern DevSecOps practices.
• Ability to work independently with evolving requirements, mentor engineers, and collaborate effectively with technical teams.
• Experience using AI-assisted development tools within a disciplined engineering workflow.
• U.S. citizenship and ability to obtain and maintain a government security clearance.

Nice To Haves

• Bachelor’s degree in computer science, software engineering, information systems, or a related technical discipline.
• Experience developing platform-as-a-service (PaaS) solutions, internal developer platforms, or cloud-native software products.
• Experience with Kubernetes, Docker, cloud platforms, and automated deployment workflows.
• Familiarity with federal cybersecurity and compliance requirements, including NIST security controls and FISMA.
• A strong software engineering portfolio, open-source contributions, or demonstrated experience building software products independently.

Responsibilities

• Design, develop, test, and maintain secure, scalable full-stack web applications for enterprise platforms and mission-critical federal operations.
• Build responsive front-end interfaces using TypeScript, Angular, and modern web development frameworks.
• Develop back-end services, business logic, and RESTful APIs using Node.js or Python.
• Design and optimize databases, queries, and data access layers using PostgreSQL.
• Lead complex software features independently and make architectural decisions balancing scalability, security, and maintainability.
• Support application modernization through cloud-native architectures, reusable components, and automated workflows.
• Implement secure coding practices, authentication, automated testing, and DevSecOps processes, including CI/CD pipelines.
• Troubleshoot production issues, improve application performance, and use AI-assisted development tools to enhance engineering productivity.
• Mentor engineers and collaborate with product, platform, and cybersecurity teams to translate requirements into effective technical solutions.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed