Senior Java API Full Stack AWS Engineer

r3 Consultant; Delhi; On-site; INR 1,500,000 - 1,800,000; Full time

Job summary

r3 Consultant is looking for a Senior Java/API Full Stack Engineer to work onsite in Delhi-NCR. The ideal candidate will have 4-6 years of full stack development experience, strong Java proficiency, and hands-on knowledge of React JS and AWS services. Responsibilities include designing and developing robust applications and APIs, collaborating with teams, and optimizing performance. We value strong problem-solving and communication skills, as well as a passion for technology and innovation.

Qualifications

• 4–6 years of experience in full stack development.
• Strong proficiency in Java and Object-Oriented Programming.
• 2+ years of experience with React JS.

Responsibilities

• Design, develop, and maintain Java-based applications and RESTful APIs.
• Collaborate with cross-functional teams to define and ship new features.
• Optimize application performance and ensure high availability.

Skills

Java and Object-Oriented Programming

RESTful API development

React JS

AWS services (DynamoDB)

Version control (Git)

Problem-solving skills

Team communication

Education

Bachelor's degree in Computer Science or IT

Tools

Docker

Kubernetes

Job description

Location: Bangalore / Delhi-NCR (Onsite)

Employment Type: Full-Time

Budget: 15–18 LPA Max

Role Summary

We are seeking a highly skilled and experienced Senior Java/API Full Stack Engineer to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining robust, scalable, and high-performance applications using Java and modern web technologies. You will work on both backend and frontend components, with a focus on API development and integration.

What You Will Do (Roles & Responsibilities)

• Design, develop, and maintain Java-based applications and RESTful APIs
• Collaborate with cross-functional teams to define, design, and ship new features
• Implement responsive user interfaces using React JS
• Work with AWS services (S3), particularly DynamoDB, to build scalable cloud-based solutions
• Optimize application performance and ensure high availability
• Write clean, maintainable, and well-documented code
• Participate in code reviews and contribute to improving development practices
• Troubleshoot, debug, and upgrade existing systems
• Stay up-to-date with emerging trends and technologies in full stack development

What You Need To Succeed (Must Have)

• Bachelor’s degree in Computer Science, Information Technology, or related field
• 4–6 years of experience in full stack development
• Strong proficiency in Java and Object-Oriented Programming (OOP)
• Extensive experience in designing and developing RESTful APIs
• 2+ years of working experience in React JS and modern frontend development practices
• Hands-on experience with AWS services, particularly DynamoDB
• Familiarity with version control systems such as Git
• Excellent problem-solving and analytical skills
• Strong communication skills and ability to work in a team environment

Ideal Candidate Will Also Have (Good to Have / Preferred)

• Experience with database-related work, including data modeling and optimization
• Knowledge of ETL (Extract, Transform, Load) processes and tools
• UX design experience and understanding of user-centered design principles
• Familiarity with Agile development methodologies
• Experience with microservices architecture
• Knowledge of containerization technologies such as Docker and Kubernetes
• Contributions to open-source projects or personal side projects demonstrating passion for technology