Senior 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 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 ASSIST monolith applications to the latest microservices architecture.
• Conduct thorough code peer reviews and make sure developers are following the 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.
• 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 Github Co Pilot
• 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: https://(Use the "Apply for this Job" box below)..htm

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.

Applicants must be authorized to work in the United States on a permanent basis. Due to recent federal changes impacting visa programs, we are not currently considering candidates who require employment‑based visa sponsorship (including H‑1B).