Lead Full Stack Developer

Why Karsun?

Join Karsun Solutions to grow your career with the company transforming possible for the US Government.

At Karsun, collaboration drives our community. We’re committed to building an environment where team members from diverse backgrounds can innovate, learn and grow with us. Here at Karsun, the only limit to your potential is the limit of your curiosity.

Join Team Karsun, and Find Your Next!

As a Lead Full Stack Developer, you will be responsible for the entire software development lifecycle of assigned software applications/components, from requirements gathering and development to testing and deployment, all within a SAFe Agile framework. As a hands‑on developer, the Lead FSD shall provide technical leadership by mentoring junior developers, ensuring code quality, and driving best practices throughout the development process.

• Serve as the technical lead for an agile team of 6 including developers, business analysts, and automation test engineers.
• Drive the adoption of AI technologies, tools and frameworks to improve efficiency.
• Hands‑on role with extensive involvement in the full development lifecycle, including design, development, testing, implementation, maintenance and enhancement of applications.
• Drive continuous integration, automated testing and frequent releases to maintain agile delivery momentum.
• Work with the Business Analyst(s) and define the criteria for ‘Definition of Ready’ and ‘Definition of Done’ for the user stories and defects.
• Work with the Business analyst and make sure the team backlog is being groomed at a regular cadence so that there is a healthy backlog for the team to pick up at Sprint planning sessions.
• Serve as the technical and technology expert crafting the detailed application design with a focus on standards, performance, flexibility, scalability and security, as well as supporting the implementation of the solution.
• Drive the migration of ASSIST monolith applications to the latest microservices architecture.
• Drive retrospectives and root cause analysis (RCA) to identify areas for technical improvement.
• Conduct thorough code peer reviews and make sure developers are following the Java coding standards and best practices.
• Work closely with Solution Architects and enterprise architects to align team efforts with broader program architectural runway.
• Monitor and analyze product performance in production, while looking for ways to optimize and scale existing solutions.

• Typically requires a bachelor’s degree and 1015 years of related experience.
• Strong proficiency in Java, JEE and related technologies, including Spring/Spring Boot and Angular frameworks.
• Experience with API microservices development.
• Hands‑on experience with Docker, Apache Maven, and JBoss.
• Experience with enterprise application platforms and cloud-native application hosting.
• Strong Proficiency in JavaScript frameworks such as Angular, Bootstrap, jQuery, and Data Tables.
• Experience with JPA, Hibernate ORM and strong proficiency in SQL.
• Experience with Atlassian Application Lifecycle Management tools (JIRA/Confluence).
• Experience with AI Prompt Templates, Prompt engineering and applying them to developer AI tools such as Github CoPilot to improve the developer productivity.
• Strong written and verbal communication skills with the ability to present and comprehend technical details clearly.
• Availability during core business hours of 9:00 AM - 5:00 PM EST.
• Ability to obtain and maintain a Public Trust clearance.

• Experience supporting US federal government contracts.
• Experience with work flow orchestration tools such as Temporal.io, Camunda is a plus.
• Experience with integrating USWDS compliant components with Angular storybook is a plus.

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

The proposed salary range for this role is $ to $ USD. The salary range provided is a good faith estimate representative of all experience levels. Karsun considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Karsun does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Karsun and Karsun will not be obligated to pay a placement fee.

This position requires the eligibility to obtain a security clearance. The Defense Industrial Security Clearance Office (DISCO), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website:…