Java Full Stack Developer

Key Responsibilities

Backend Development (Java-Focused)

Design and implement scalable, secure RESTful and GraphQL APIs using Java 17+, Spring Boot, Spring WebFlux, Spring Security

Use Spring Data JPA or MyBatis for data access layer, with deep understanding of persistence context, lazy/eager loading, and caching strategies

Create asynchronous processing using Kafka, RabbitMQ, or Spring Events

Apply OAuth2.0/JWT authentication and RBAC models via Spring Security and Keycloak

Optimize performance of services using JVM tuning, profiling (VisualVM, YourKit), and connection pool management (HikariCP)

Implement and consume OpenAPI/Swagger documentation and version APIs following best practices

Manage error handling, retries, logging, and monitoring with best practices for production readiness

Frontend Development

Build responsive and accessible user interfaces using React.js, Redux, and TypeScript

Develop reusable UI components and state containers following Atomic Design and Context API/React Query patterns

Handle secure API integrations, token management, and user sessions

Implement frontend testing using Jest, React Testing Library, or Cypress

Database & Persistence

Write optimized SQL queries for relational databases like PostgreSQL, MySQL, or Oracle

Design data models with normalization, indexing, partitioning, and migration scripts using Flyway or Liquibase

Integrate with NoSQL stores such as MongoDB, Redis, or Elasticsearch for specific use cases

DevOps & CI/CD

Containerize applications with Docker, deploy via Kubernetes (EKS/GKE/AKS) or OpenShift

Implement CI/CD pipelines using GitLab CI, GitHub Actions, or Jenkins

Automate build/test/deploy processes for both frontend and backend

Integrate monitoring and logging with ELK Stack, Prometheus/Grafana, or Sentry

Store and manage secrets using Vault, AWS Secrets Manager, or Kubernetes Secrets

Agile & Collaboration

Participate in daily stand-ups, sprint planning, and retrospectives in an Agile/Scrum team

Collaborate with business analysts and product owners to understand requirements and translate them into technical tasks

Conduct peer code reviews and ensure adherence to architectural principles and design patterns

Contribute to continuous improvement initiatives in coding standards, performance, and security

Required Technical Skills

Languages: Java 17+, JavaScript/TypeScript, SQL, HTML, CSS

Frameworks: Spring Boot, Spring Security, Spring Data JPA, React.js or Angular

Tools & Platforms: Docker, Kubernetes, Git, Maven/Gradle, Jenkins, GitHub Actions

Databases: PostgreSQL, MySQL, MongoDB, Redis

Messaging/Streaming: Kafka, RabbitMQ

Testing: JUnit, Mockito, Test containers, Postman, Jest, Cypress

Cloud & Infra: AWS/GCP/Azure (EC2, S3, Lambda, IAM), Terraform (nice to have)

Monitoring & Observability: Prometheus, Grafana, ELK, Sentry

Dev Practices: CI/CD, TDD/BDD, DDD, SOLID principles, Clean Architecture

Education and Experience

Bachelors degree in Computer Science, Engineering, or a related technical field

5+ years of experience in full stack development, with 3+ years strong backend Java/Spring Boot expertise:

Building large-scale web applications from scratch

Java, Spring Boot, RESTful API design and integration

Frontend development with JavaScript and React

Cloud deployment using AWS

Working knowledge of Docker, Kubernetes, Terraform, and DevOps tools

Unit and integration testing (JUnit, Mockito, etc.)

Debugging and performance optimization across full stack

Experience in Agile/Scrum teams and enterprise-grade development cycles

Soft Skills & Expectations

Strong analytical thinking, problem-solving, and debugging abilities

Excellent written and verbal communication

Ability to mentor junior developers and collaborate effectively in cross-functional teams

Passion for clean code, scalable architecture, and continuous learning