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Senior Full-Stack Developer

Job

Kelmar

Remote

Full-Time

Posted 2 weeks ago (Updated 1 week ago) • Actively hiring

Expires 6/26/2026

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Job Description

Senior Full-Stack Developer Kelmar life insurance, vision insurance, parental leave, paid time off, tuition assistance, 401(k) United States, Massachusetts, Wakefield May 23, 2026 Kelmar's Full-Stack Developers build and enhance web applications in Angular and Spring Boot, drive technical quality through code reviews and testing practices, and mentor junior developers as they grow. Our web applications serve more than 40 state government clients-running on AWS with a mix of serverless and containerized workloads including Lambda, EKS, Fargate, backed by MySQL and OpenSearch. This is a senior individual contributor role where you'll lead projects from requirements through delivery, shape technical direction, and directly influence a product used by millions of people. If you're energized by building polished, performant web applications and offering technical leadership to colleagues and peers, we want to hear from you. This is a remote position.

RESPONSIBILITIES AND DUTIES

Develop and enhance web applications using Angular and Spring Boot Implement features that improve user experience, accessibility, and responsiveness across devices / browsers Create sustainable, well-documented code and advise on technical debt reduction Build reusable code and libraries for use across applications Optimize site performance, localization, authentication/authorization, and SEO Write and maintain unit and integration tests; participate in the design of CI/CD workflows Analyze code and communicate detailed, actionable reviews to development teams Apply cloud-native patterns to ongoing platform innovation Develop applications that run in serverless (AWS Lambda) or managed Kubernetes environments (AWS EKS, Fargate) Participate in occasional client-facing meetings Lead projects, feature requests from requirements through delivery Mentor junior developers through code reviews, pair programming, and technical guidance Support deployment and maintenance activities, off-hours, as needed Occasional travel for internal meetings (