Senior Full Stack Engineer — Java/Spring + React Lead

Citi; New York (NY); Hybrid; USD 16,000 - 22,000; Full time

Job summary

Citi is seeking a Senior Full Stack Engineer for a hybrid role in Pune. You will design and deliver mission-critical web applications using Java/Spring Boot on the backend and React/TypeScript on the frontend, building scalable microservices and modern user interfaces.

You will mentor engineers, drive architectural decisions, and Champion clean coding, automated testing, and DevOps practices within a collaborative, global team.

Qualifications

• 7-9 Years of professional software engineering experience delivering production-grade full-stack web applications.
• Strong proficiency in Java and extensive, hands-on experience with the Spring Ecosystem (Spring Boot, microservices architecture, RESTful API design).
• In-depth experience with React, state management (e.g., Redux, Context API), and modern front-end tooling/build workflows.
• Strong Experience with building Micro Front Ends in a React based environment.
• Solid understanding of relational (SQL) and non-relational (NoSQL) database design, indexing, and ORM frameworks (Hibernate / JPA).
• Strong foundation in computer science fundamentals: data structures, algorithms, concurrency, system design, and security best practices.
• Proven track record with automated testing (JUnit, Mockito, Jest, React Testing Library) and CI/CD pipelines.

Responsibilities

• Architect & Build end-to-end design, implementation, and deployment of resilient microservices and full-stack web applications.
• Modern Front-End Engineering: Build intuitive, accessible, and high-performance user interfaces using React, Redux, and TypeScript.
• Robust Back-End Services: Develop high-throughput RESTful APIs, event-driven pipelines, and data persistence layers with Spring Boot, Spring Data, and SQL/NoSQL databases.
• Engineering Excellence: Champion code quality through automated testing, peer code reviews, CI/CD automation, and architectural discussions.
• Scale & Optimize: Profile and optimize applications for speed, security, resilience, and horizontal scalability.
• Technical Leadership & Mentorship: SME, collaborate with PMs/UX/design and coach junior engineers.
• Innovation: Continuously evaluate emerging technologies to keep our tech stack modern.

Skills

Java

Spring Ecosystem

React

Redux

TypeScript

Micro Frontends

SQL/NoSQL

CI/CD

JUnit/Mockito

Education

Bachelor's degree

Tools

Docker

Kubernetes

Jenkins

GitHub Actions

Tekton

AWS

Job description

Citi is seeking a Senior Full Stack Engineer for a hybrid role in Pune. You will design and deliver mission-critical web applications using Java/Spring Boot on the backend and React/TypeScript on the frontend, building scalable microservices and modern user interfaces.

You will mentor engineers, drive architectural decisions, and Champion clean coding, automated testing, and DevOps practices within a collaborative, global team.