Senior Full Stack Developer

Why Karsun? Join Karsun Solutions to grow your career with the company transforming possibilities 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 key member of the team, the Senior Full Stack Developer will be responsible for the entire software development lifecycle of assigned software components, from requirements gathering and development to testing and deployment, all within a SAFe Agile framework. The Senior Full Stack Developer will play a critical role in building and maintaining applications that support our core mission, with a focus on seamless integration and high performance.

• Application Development:
  Develop, test, and deploy full-stack applications, including dashboards, process automation tools, and interface applications, using Java, JEE, Spring/Spring Boot, Angular and other relevant technologies.
• Microservices Architecture:
  Design, develop, and maintain API microservices that are scalable, resilient, and secure.
• Hands‑on role with extensive involvement in the full development lifecycle, including design, development, unit testing, implementation, maintenance and enhancement of applications.
• Collaboration:
  
  Collaborate effectively with other developers, testers, and stakeholders within a SAFe Agile environment.
• Continuous Improvement:
  Identify and implement opportunities to improve system performance, reliability, and security.
• Drive the migration of monolith applications to the latest microservices architecture.
• Conduct thorough code peer reviews and ensure developers are following Java coding standards and best practices.

• Bachelor's degree in Computer Science or a related field.
• 8–10 years of experience in full-stack development using Java/JEE.
• Strong proficiency in Java, JEE and related technologies, including Spring/Spring Boot and Angular frameworks.
• Experience with API microservices development and JOOQ ORM, integrating ESRI ArcGIS geospatial APIs.
• Hands‑on experience with Docker, Apache Maven, JBoss Enterprise Application Platforms and cloud‑native application hosting.
• Solid understanding of responsive design principles and implementation.
• Expert proficiency and hands‑on experience with UI frameworks such as Angular, Bootstrap, jQuery, and Data Tables.
• Experience with Java Persistence API (JPA) and Hibernate ORMs.
• 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 Git Hub CoPilot.
• 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 or Camunda.
• Experience with integrating USWDS compliant components with Angular storybook.

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.

This position requires the eligibility to obtain a security clearance.

To be considered for this role, you must reside in one of the following states: CA, CO, DC, FL, GA, IL, MD, NJ, NY, NC, OH, OK, PA, SC, TX, VA, WV.