Senior Full-Stack Developer

Kelmar Associates•Wakefield, MA

10d•$115,000 - $125,000•Remote

About The Position

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.

Requirements

5+ years of development experience working within a modern full-stack web application environment
Bachelor's degree in computer science or information technology, or commensurate experience
Strong experience with Angular
Experience with Spring or Spring Boot
Experience with relational databases (MySQL preferred), including schema design, query optimization, and data modeling
Familiarity with search technologies such as OpenSearch/Elasticsearch
Proficiency with Git-based workflows
Familiarity with automated testing practices and CI/CD pipelines
Ability to review and interpret client requests with product owners and analysts
Comfortable working independently with limited supervision
Strong organizational skills with the ability to manage multiple priorities
Candidates must be legally authorized to work in the U.S. without sponsorship now and in the future

Nice To Haves

Familiarity with other front-end frameworks like React, Vue, or similar
AWS certifications (Developer Associate, Solutions Architect, or equivalent)

Responsibilities

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 (<10%)