Lead Full Stack Engineer - Java / Spring Boot, React.js & Cloud

Experience: 10+ Years

Role Summary

We are looking for an experienced Lead Full Stack Engineer with 10+ years of hands-on software development experience to design, architect, and deliver high-performance, scalable cloud applications. The role requires deep backend microservices expertise in Java and Spring Boot, strong frontend delivery capability using React.js, and proven experience in cloud-native application modernization, containerized deployment, engineering mentorship, and technical leadership.

Role Snapshot

Role TitleLead Full Stack Engineer

Primary SkillsJava, Spring Boot, Microservices, React.js, REST APIs

Cloud & DevOps SkillsDocker, Kubernetes, CI/CD, cloud deployment practices

Experience10+ years of hands-on software development experience

Seniority LevelLead / Architect-level engineering responsibility

Roles and Responsibilities

- Lead end-to-end technical implementations across backend services, frontend interfaces, integration layers, deployment workflows, and production support readiness.
- Design, architect, and deliver scalable, secure, resilient, and high-performance cloud applications aligned with enterprise architecture standards.
- Build and modernize backend microservices using Java, Spring Boot, REST APIs, event-driven patterns, and clean service boundaries.
- Develop modern frontend client interfaces using React.js, JavaScript/TypeScript, component-based design, reusable UI patterns, and API-driven integration.
- Modernize legacy or monolithic application architecture into cloud-native, modular, scalable, and maintainable platforms.
- Define technical approach, estimate implementation effort, guide engineering teams, and own delivery quality across sprints/releases.
- Mentor developers on design patterns, coding standards, code review discipline, testability, performance engineering, and production-readiness practices.
- Orchestrate application deployments using Docker and Kubernetes across cloud environments while coordinating with DevOps, platform, security, and QA teams.
- Drive CI/CD adoption, automated build and release practices, environment configuration management, observability, and deployment governance.
- Troubleshoot complex production issues, review logs and metrics, improve performance bottlenecks, and ensure application reliability and operational stability.

Mandatory Technical Skills Backend Engineering - Java / Spring Boot
- Robust hands-on experience in Core Java, Java 8+, collections, multithreading,



exception handling, design patterns, and enterprise application development.
- Expertise in Spring Boot, Spring MVC, Spring Data/JPA, Hibernate, RESTful API development, API versioning, and microservices architecture.
- Experience designing scalable service-to-service communication, API contracts, error handling, resiliency, caching, transaction management, and secure backend services.
- Strong understanding of relational databases and SQL, with practical experience in data modelling, query optimization, schema design, and database integration.
- Ability to create technical designs, review architecture decisions, and guide teams on backend implementation best practices.

Frontend Engineering - React.js
- Strong experience in React.js, JavaScript/TypeScript, ES6+, component lifecycle, hooks, state management, routing, forms, validation, reusable components, and frontend performance optimization.
- Experience integrating React applications with REST APIs, handling asynchronous calls, browser debugging, API error handling, and responsive UI development.
- Knowledge of frontend build tooling, package management, unit testing, accessibility basics, and secure frontend development practices.
- Ability to collaborate with UX, product, backend, and QA teams to deliver clean, maintainable, and user-friendly client interfaces.

Cloud, DevOps and Containerization
- Hands-on experience with Docker for containerization, image creation, configuration, environment management, and deployment packaging.
- Good working knowledge of Kubernetes concepts such as pods, deployments, services, ingress, config maps, secrets, scaling, and rollout/rollback strategies.
- Experience working with cloud environments and cloud-native deployment practices; exposure to Azure, AWS, or GCP is preferred.
- Practical experience with CI/CD pipelines using tools such as Jenkins, GitHub Actions, GitLab CI, Azure DevOps, or equivalent platforms.

Architecture, Modernization and Leadership
- Proven experience in application modernization, decomposition of monoliths, microservices adoption, API-led integration, and cloud migration initiatives.




- Ability to define solution architecture, technical roadmap, non-functional requirements, engineering standards, and implementation governance.
- Experience leading engineering teams, mentoring developers, conducting technical reviews, resolving blockers, and aligning delivery with business priorities.
- Strong ownership of code quality, security, performance, scalability, reliability, maintainability, and production-readiness.

What Is Necessary for This Role
- 10+ years of hands-on software engineering experience, with demonstrated delivery ownership in full stack enterprise applications.
- Strong backend depth in Java and Spring Boot, not just coordination or team-management experience.
- Practical React.js delivery experience with the ability to understand and guide frontend implementation decisions.
- Prior experience designing or modernizing microservices-based architecture for scalable cloud applications.
- Hands-on deployment exposure using Docker and Kubernetes; resource should be comfortable discussing containerization and cloud deployment flow.
- Ability to lead technical discussions, mentor engineers, review code/design, and handle complex implementation decisions independently.

Good-to-Have Skills
- Exposure to cloud platforms such as Azure, AWS, or GCP, including managed services, identity/security, monitoring, and deployment patterns.
- Experience with Kafka, RabbitMQ, message-driven architecture, distributed tracing, API gateways, service mesh, or caching platforms.
- Experience with test automation practices using JUnit, Mockito, Jest, React Testing Library, Cypress, Selenium, or equivalent tools.
- Knowledge of observability tools such as Prometheus, Grafana, ELK, Splunk, AppDynamics, New Relic, or cloud-native monitoring services.
- Exposure to secure coding, OWASP principles, vulnerability scanning, SonarQube, code quality gates, and compliance-driven development environments.
- Experience in Agile/Scrum delivery, backlog refinement, sprint planning, estimation, release planning, and production incident support.

Preferred Candidate Profile
- A hands-on engineering lead who can contribute technically while also mentoring and guiding developers.
- Strong full stack project experience with Java/Spring Boot backend and React.js frontend, preferably in enterprise or cloud application environments.
- Comfortable owning architecture discussions, implementation quality, deployment readiness, production troubleshooting, and stakeholder communication.

📌 Lead Full Stack Engineer with Reactjs (Bengaluru)
🏢 PwC India
📍 Bengaluru