Full Stack Developer – Java, React
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Sep 29, 2026. QuickLaunch scores B on the Alion truth index.
ROLE OVERVIEW
We are looking for a senior full stack developer who can own a product module from requirement to production release without hand-holding. This is a hands-on individual contributor role: you will design the data model, build the Java backend services, develop the React front end, write your own unit tests, and see the feature through code review, deployment and post-release support.
The person we are looking for is comfortable being the only engineer on a feature. You will be expected to make sound architectural calls, raise risks early, and use modern AI development tools to move faster without lowering the quality bar.
KEY RESPONSIBILITIES
Own full product features end to end - requirement analysis, technical design, database schema, backend APIs, front-end implementation, testing, deploymentand production support.
Design and build backend services in Java (Spring Boot) - REST APIs, business logic, integrations with third-party and internal systems.
Develop responsive, component-driven user interfaces in React, with clean state management and reusable components.
Model MongoDB schemas, indexesand aggregation pipelines; tune queries and resolve performance bottlenecks.
Write unit tests and integration tests for all code you deliver (JUnit/Mockito on the backend, Jest/React Testing Library on the front end) and maintainmeaningful coverage.
Model MongoDB schemas, indexesand aggregation pipelines; tune queries and resolve performance bottlenecks.
Write unit tests and integration tests for all code you deliver (JUnit/Mockito on the backend, Jest/React Testing Library on the front end) and maintainmeaningful coverage.
Use AI development tools such as Claude, Claude Code, GitHub Copilot or similar to accelerate design, coding, test generation, refactoringand code review - while reviewing and validatingevery AI-generated change before it ships.
Debug production issues independently - reproduce, root-cause, fixand document.
Participate in code reviews, enforce coding standards, and contribute to CI/CD pipelines and release readiness.
Document technical design, API contractsand deployment stepsso the work is transferable to the rest of the team.
Work directly with product, QAand stakeholders - translate business requirements into a working solution and give realistic estimates.
Requirements
REQUIRED SKILLS & EXPERIENCE
8+ years of hands-on software development experience in Java, including strong command of core Java, OOP, collections, concurrency and JVM fundamentals.
5+ years of hands-on experience building production applications in React - hooks, functional components, state management (Redux / Context API), and modern JavaScript (ES6+).
Strong experience with Spring Boot, Spring MVC, Spring Data and REST API design.
Solid working knowledge of MongoDB - schema design, indexing, aggregation framework, and query optimisation
Proven track record of delivering features independently, end to end, with minimal supervision.
Strong unit testing discipline - JUnit, Mockito, Jest or React Testing Library.
Practical experience using AI coding assistants (Claude, Claude Code, Copilot or equivalent) as part of the day-to-day development workflow.
Proficiencywith Git, branching strategiesand pull-request based development.
Familiarity with CI/CD tooling (Jenkins, GitHub Actions or similar) and containeriseddeployment (Docker).
Strong problem-solving skills and the ability to make and defend design decisions.
Clear written and verbal communication - able to explain technical trade-offs to non-technical stakeholders.
Benefits
GOOD TO HAVE
Experience with microservicesarchitecture and message queues (Kafka, RabbitMQ).
Cloud experience on AWS or Azure - EKS/Kubernetes, S3, managed databases.
Exposure to TypeScript, Next.js or modern build tooling (Vite, Webpack).
Experience with relational databases (PostgreSQL, MySQL) alongside MongoDB.
Performance profiling and application monitoring experience (ELK, Grafana, APM tools).
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