Senior Full Stack Developer

Karsun Solutions, LLC; South Carolina; On-site; USD 135,000 - 150,000; Full time

Job summary

A technology solutions firm is seeking a Senior Full Stack Developer to oversee the complete software development lifecycle of applications. Key responsibilities include developing full-stack applications and maintaining API microservices using Java, JEE, Spring/Spring Boot, and Angular. The ideal candidate should have significant experience in full-stack Java development, solid understanding of responsive design principles, and ability to work within a collaborative SAFe Agile team environment, aimed at delivering high-performance applications.

Qualifications

• 8-10 years of experience in full-stack development using Java/JEE.
• Expert proficiency in Java, JEE, Spring/Spring Boot, and Angular frameworks.
• Hands-on experience with API microservices development.

Responsibilities

• Develop, test, and deploy full-stack applications using relevant technologies.
• Design and maintain API microservices that are scalable and secure.
• Collaborate effectively in a SAFe Agile environment.

Skills

Java

Spring/Spring Boot

Angular

API microservices

Docker

JIRA

Bootstrap

jQuery

Education

Bachelor's degree in Computer Science or related field

Tools

Apache Maven

JBoss Enterprise Application Platforms

Job description

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!

Summary

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.

What You'll Do:

• 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.

Required Qualifications:

• 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 DataTables.
• 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 CoPilot
• Availability during core business hours of 9:00 AM - 5:00 PM EST.
• Ability to obtain and maintain a Public Trust clearance.

Preferred Qualifications:

• 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

Things to Know:

Commitment to Non-Discrimination

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.

Salary Range

The proposed salary range for this role is $135,000.00 to $150,000.00 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.

Third Party Resumes:

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.

Clearance Information

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://www.state.gov/mds/clearances/c10978.htm

Location

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).