Java Full Stack Lead

Nusummit Technologies; Mumbai; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

Nusummit Technologies in Mumbai is seeking a hands-on Java Full Stack Lead with strong backend skills, React.js experience, and proficiency in cloud/CI/CD. This senior role requires delivering scalable services and leading development across teams.

You will design APIs with Java Spring Boot, optimize databases, build responsive UIs, and drive quality through unit and automation testing. The position is based in Lower Parel with an office-first setup and collaboration with QA, product, and DevOps

Qualifications

• 6.5–10 years of hands-on Java full stack experience.
• Strong backend with Java, Spring Boot, microservices and REST APIs.
• Proficient in React.js frontend development.
• Experience with SQL databases (PostgreSQL/MySQL) and data modeling.
• Cloud services (AWS or GCP), CI/CD pipelines, and containerization (Docker/Kubernetes).
• Unit and automation testing with JUnit, Mockito, Jest, Cypress, or Playwright.

Responsibilities

• Lead backend development with scalable microservices and REST APIs.
• Develop responsive UIs with React.js and integrate with APIs.
• Design and optimize database schemas and queries.
• Implement CI/CD pipelines and manage cloud deployments (AWS/GCP).
• Establish testing strategies across unit, integration, and automation tests.
• Provide technical leadership and code reviews.

Skills

Java Full Stack

Spring Boot & Microservices

React.js

SQL / Database

Cloud Services (AWS/GCP) & CI/CD

Unit Testing / Automation Testing

Tools

Docker

Kubernetes

Job description

Dear Candidate,

We are Hiring: Java Full Stack (Banking / Financial Services Client)

Location: Lower Parel, Mumbai (Work from Office)

Experience: 6.5-10 Years

Mandatory Skills:

• Java, Spring Boot & Microservices
• React.js
• SQL / Database
• Cloud Services (AWS/GCP) & CI/CD
• Unit Testing / Automation Testing Framework

Job Overview:

Looking for a hands-on Java Full Stack Lead with strong backend development skills, React.js experience, cloud/CI-CD knowledge, and testing expertise. Candidates should have relevant project experience and strong problem-solving skills.

Key Responsibilities:

Backend Development:

Design, develop, and maintain backend services using Java, Spring Boot, Microservices, and REST APIs. Work on scalable and distributed systems, database integration, and performance optimization.

Frontend Development:

Build responsive and user-friendly web applications using React.js. Integrate frontend components with backend APIs and optimize application performance.

Database Management:

Work with SQL databases such as PostgreSQL/MySQL and ensure efficient queries, data integrity, and database performance.

Cloud & CI/CD:

Work with AWS/GCP cloud services, CI/CD pipelines, and deployment processes. Knowledge of Docker and Kubernetes is an added advantage.

Testing & Quality:

Implement unit, integration, and automation testing using frameworks such as JUnit, Mockito, Jest, Cypress, or Playwright. Unit testing experience is mandatory.

Technical Leadership:

Participate in code reviews, technical design discussions, debugging, and performance improvements. Guide developers and collaborate with QA, product, and DevOps teams.