Senior Full Stack Developer

Karsun Solutions; United States; On-site; USD 150,000 - 165,000; Full time

Job summary

Karsun Solutions is seeking a Senior Full Stack Developer in the United States. You will own end-to-end development of full-stack apps, work within a SAFe Agile framework, and drive microservices adoption with Java/JEE, Spring Boot, and Angular.

You will collaborate with cross-functional teams to optimize performance, reliability, and security while migrating legacy monoliths to modern microservices.

Qualifications

• Bachelor's degree in Computer Science or related field.
• 8-10 years of full-stack development with Java/JEE.
• Strong Java/JEE, Spring Boot and Angular knowledge.
• Experience with API microservices and JOOQ ORM.
• Hands-on with Docker, Maven, JBoss EAP and cloud hosting.
• Familiar with responsive design and UI frameworks.

Responsibilities

• Develop, test, and deploy full-stack applications using Java/JEE, Spring Boot, and Angular.
• Design and maintain scalable, secure API microservices.
• Lead end-to-end development lifecycle in a SAFe Agile environment.
• Collaborate with developers, testers, and stakeholders across teams.
• Drive monolith migration to modern microservices architecture.
• Conduct thorough code reviews and enforce Java coding standards.

Skills

Java/JEE

Spring/Spring Boot

APIs / Microservices design

SAFe Agile

Unit testing

JPA / Hibernate

Code reviews / best practices

Cloud-native hosting

Security

AI Prompt Templates

Data handling / performance

Education

Bachelor's degree in Computer Science or related field

Tools

Angular

Docker

Apache Maven

JBoss EAP

JOOQ

ESRI ArcGIS APIs

Hibernate / JPA

JIRA/Confluence

Git

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 Be Doing:

• 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 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 developmentand 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 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.

Preferred Qualifications:

• Experience supporting US federal government contracts


• Experience with work flow orchestration tools such asTemporal.io, Camunda or equivalent 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 $150,000 to $165,000 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/m/ds/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.

Work Authorization

Applicants must be authorized to work in the U.S.

Statement on AI and Hiring Process

At Karsun, we are committed to a fair and equitable hiring process. We do not use artificial intelligence to make decisions on candidates, scan resumes, or source potential hires. Applicants are reviewed by our talent acquisition team and hiring managers to ensure a thorough evaluation based on skills, experience, and alignment with our company values. Our hiring decisions are made with human judgement, ensuring fairness and transparency throughout the process.