Senior Full Stack Developer

The Senior Full Stack Developer will provide hands-on technical leadership for the design, development, testing, deployment, maintenance, and enhancement of assigned software applications and components. The senior Full Stack Developer will mentor developers, conduct code reviews, support architecture and modernization efforts, and drive engineering best practices across the team.

What You’ll Do

• Provide hands-on full stack development across the application lifecycle, including design, development, testing, implementation, maintenance, and enhancement.
• Drive the adoption of AI-assisted development tools, prompt templates, and software engineering practices to improve productivity, code quality, testing, documentation, and delivery efficiency.
• Develop, enhance, and maintain APIs, microservices, user interfaces, and backend services using Java, Spring Boot, Angular, and related technologies.
• Promote continuous integration, automated testing, and frequent release practices to support Agile delivery.
• Conduct code peer reviews and ensure adherence to Java coding standards, secure coding practices, and development best practices., 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.

• Bachelor’s degree and typically 8-10 years of related software development experience.
• Strong proficiency in Java, JEE, Spring, Spring Boot, and related enterprise application development technologies.
• Proven experience designing and developing RESTful APIs and microservices.
• Strong proficiency with JavaScript, TypeScript, Angular,node.js, Bootstrap, jQuery, DataTables, and similar front-end frameworks and libraries.
• Experience with JPA, Hibernate ORM, relational database design, and SQL.
• Experience integrating U.S. Web Design System, or USWDS, compliant components into Angular-based applications, including use of component libraries or Storybook.
• Experience using AI-assisted development tools such as GitHub Copilot, GitHub Copilot Chat, to support code generation, code completion, refactoring, documentation, and unit test generation.
• Experience with prompt engineering techniques, prompt templates, and effective use of AI tools within the software development lifecycle.
• Ability to evaluate, validate, and refine AI-generated code to ensure correctness, maintainability, security, and alignment with coding standards.
• Availability during core business hours of 9:00 AM-5:00 PM Eastern Time.
• Ability to obtain and maintain a Public Trust clearance., * Experience supporting U.S. federal government contracts or federal technology programs.
• Experience with workflow orchestration tools such as Temporal.io, Camunda, or similar platforms.
• Experience with automated testing frameworks, CI/CD pipelines, DevSecOps practices, and code quality tools.
• Experience with agentic AI development concepts, including AI agents, tool use, task planning, autonomous or semi-autonomous workflows, and human-in-the-loop engineering processes., Applicants must be authorized to work in the U.S.

The proposed salary range for this role is $130,000 to $150,000 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.