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, deployment and 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, indexes and 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 maintain meaningful coverage.
Model MongoDB schemas, indexes and 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 maintain meaningful coverage.
Use AI development tools such as Claude, Claude Code, GitHub Copilot or similar to accelerate design, coding, test generation, refactoring and code review — while reviewing and validating every AI-generated change before it ships.
Debug production issues independently — reproduce, root-cause, fix and document.
Participate in code reviews, enforce coding standards, and contribute to CI/CD pipelines and release readiness.
Document technical design, API contracts and deployment steps so the work is transferable to the rest of the team.
Work directly with product, QA and 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.
Proficiency with Git, branching strategies and pull-request based development.
Familiarity with CI/CD tooling (Jenkins, GitHub Actions or similar) and containerised deployment (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 microservices architecture 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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Skills Required
- 8+ years of hands-on Java software development experience, including core Java, OOP, collections, concurrency, and JVM fundamentals.
- 5+ years of production React application development experience, including hooks, functional components, state management, and modern JavaScript.
- Strong experience with Spring Boot, Spring MVC, Spring Data, and REST API design.
- Solid MongoDB experience, including schema design, indexing, aggregation, and query optimization.
- Experience delivering features independently from requirements through production with minimal supervision.
- Strong unit and integration testing experience with JUnit, Mockito, Jest, or React Testing Library.
- Practical experience using AI coding assistants such as Claude, Claude Code, GitHub Copilot, or equivalent.
- Proficiency with Git, branching strategies, and pull-request-based development.
- Familiarity with CI/CD tooling such as Jenkins or GitHub Actions and containerized deployment with Docker.
- Strong problem-solving skills and ability to make and defend technical design decisions.
- Clear written and verbal communication with technical and non-technical stakeholders.
- Experience with microservices architecture and message queues such as Kafka or RabbitMQ.
- Cloud experience with AWS or Azure, including EKS, Kubernetes, S3, or managed databases.
- Exposure to TypeScript, Next.js, Vite, Webpack, or modern build tooling.
- Experience with PostgreSQL or MySQL alongside MongoDB.
- Performance profiling and application monitoring experience with ELK, Grafana, or APM tools.
What We Do
ElevenX Capital is a venture studio and venture capital fund that builds companies from the ground up. Founded by Anjli Jain, it combines ideas, capital, and talent to create and scale early-stage software and technology ventures. The firm invests in AI-first businesses spanning education and workforce technology, cybersecurity, healthcare and human performance, and food, nutrition, and genetic technology, while providing operational expertise.
