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# Full-Stack Developer - Mid-Senior, TS/SCI with CI Poly - $150K-$200K + 15% 401k

- **Company:** Millennial Software
- **Location:** Fairfax, VA, United States
- **Experience:** Experienced
- **Salary:** $150,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), Agile Methodology, C++ (Programming Language), Configuration Management, Continuous Integration, Relational Databases, Linux, Python (Programming Language), Scrum Methodology, Queueing Systems, Svelte, Rust (Programming Language), Test-Driven Development (TDD), Gitlab, Git, Vue.js, Containerization, Kubernetes, Information Technology, Deployment Automation, Apache Kafka, Front End Software Development, Docker
- **Published:** May 19, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=0b19f4f97df93728

## About the Role

* Bachelor's degree or equivalent experience in Computer Science
 * At least 5 years' experience in multiple languages such as JavaScript, Python, Java, Rust
 * At least 5 years' experience in Full-stack software development (i.e. client, server, and data tiers)
 * At least 3 years' experience with containerization and orchestration platforms such as Docker and Kubernetes
 * Strong analytical and problem solving skills with attention to detail
 * Strong understanding of development best practices, configuration management, and testing
 * Strong desire to constantly learn how new tools, frameworks, and technologies that can further the customer's mission and provide value to the end-user
 * Ability and desire to work independently; i.e. given general tasking, develop subtasks and/or approach to satisfy task objectives
 * Proven capability to learn new skills, adapt to shifting priorities and requirements
 * Comfortable with the Linux operating system
 * Strong communication skills and experience working with end-users and developers
 * Active TS/SCI clearance

Nice to have:

 * Strong familiarity with Svelte and/or other frontend frameworks such as Vue.js
 * Familiarity with message queue implementations, such as Kafka
 * Experience utilizing Test Driven Development

## Description

Millennial Software is seeking a Mid-Senior Full Stack Software Developer to join our collaborative team supporting a Government customer. You'll provide operations and maintenance support to ensure the stability, performance and continuous improvement of our new operational production software systems.

This is a great opportunity for a motivated developer to grow technical skills across the full stack, with a particular focus on modern software development processes and technologies.

The ideal candidate is passionate in the full lifecycle of application, including design, coding, testing, implementation, deployment as well as support and maintenance. The candidate must be comfortable collaborating closely with users and developers to build and maintain polished, high-performance tools in mission-critical environments.

Essential Functions:

 * Monitor, maintain and optimize production applications across the full tech stack
 * Implement and manage automated deployment pipelines and CI/CD processes
 * Investigate, report and resolve issues from problems such application bugs, patching and integration with external systems
 * Support agile development activities including sprint planning, peer code reviews, and iterative updates based on end-user feedback
 * Help maintain clean, well-documented, and testable code
 * Strong familiarity with Docker, Kubernetes, Helm
 * Strong familiarity with complied languages such as Rust, Java, and C++ and its many utilities/packages
 * Well-versed in Relational databases
 * Good understanding of Git, GitLab, CI/CD pipelines, and CM best practices


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