Senior Full Stack Developer

Karsun Solutions, LLC; Kentucky; On-site; USD 150,000 - 165,000; Full time

Job summary

Karsun Solutions, LLC is seeking a Senior Full Stack Developer in the United States to drive end-to-end software delivery within a SAFe Agile framework. You will own the development lifecycle for complex components, collaborating with cross-functional teams to build high-performance, scalable applications.

You will develop in Java/JEE, Spring Boot, and Angular, design microservices, and mentor peers while ensuring security, reliability, and code quality.

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 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 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.

Responsibilities

• Develop, test, and deploy full‑stack applications using Java/JEE, Spring/Spring Boot, and Angular.
• Design, develop, and maintain API microservices that are scalable, resilient, and secure.
• Involve in the full development lifecycle including design, development, unit testing, deployment, and maintenance.
• Collaborate with developers, testers, and stakeholders in a SAFe Agile environment.
• Identify and implement improvements to system performance, reliability, and security.
• Drive migration from monoliths to microservices architectures.
• Conduct code peer reviews and enforce Java coding standards and best practices.

Skills

Java/JEE

Spring/Spring Boot

Angular

API microservices

JOOQ ORM

ESRI ArcGIS

Docker

Maven

JBoss

Cloud-native hosting

UI frameworks (Bootstrap/jQuery/DataGr

Education

Bachelor's degree in Computer Science

Tools

JIRA/Confluence

Docker

Maven

JBoss

Cloud hosting

Job description

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 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 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 workflow orchestration tools such as Temporal.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.

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.

Work Authorization

Applicants must be authorized to work in the U.S. We may consider candidates currently in H-1B status who are eligible for transfer.