Java Full Stack Developer

Hallmark Systems; Hyderabad; On-site; INR 3,500,000 - 6,000,000; Full time

Job summary

Hallmark Systems is seeking a Senior Full Stack Engineer with hands-on Java, Node.js and AWS cloud experience to design, develop, and manage end-to-end scalable applications across frontend, backend and cloud infrastructure.

You will build microservices, REST APIs, and work with React/Angular/Vue on the frontend, with Java Spring Boot and Node.js on the backend, emphasizing clean, production-grade code and strong design principles.

Qualifications

• Hands-on experience with Java, Node.js, and AWS cloud technologies.
• Experience designing, developing and managing end-to-end scalable applications (frontend, backend, cloud).
• Strong background building microservices and REST APIs, using modern frontend frameworks (React/Angular/Vue).
• Deep backend experience with Java Spring Boot and Node.js, writing clean, production-grade code.

Responsibilities

• Develop high-quality software across frontend, backend and cloud infra.
• Migrate on-prem and PAAS apps to AWS with timelines.
• Design and implement serverless patterns from containerized apps.
• Build robust APIs and manage routing, connectivity and policy.
• Architect patterns optimized for SLAs, reliability and cost.
• Collaborate in Agile ceremonies and drive code reviews and docs.
• Monitor performance, costs and security, addressing technical debt and compliance.

Skills

Strong coding

System design

Tools

Java

Node.js

Spring Boot

AWS

React

Angular

Vue

Docker

Kubernetes

MongoDB

AWS CDK

CloudFormation

Lambda

API Gateway

ECS

EKS

Job description

We are looking for a highly skilled Senior Full Stack Engineer with strong Handson experience in Java Nodejs and AWS cloud technologies The ideal candidate must be an excellent coder and capable of designing developing and managing end-to-end scalable applications across frontend backend and cloud infrastructure

The role requires strong expertise in building microservices and SO Abased systems developing REST APIs and working with modern frontend frameworks like React Angular or Vue On the backend the candidate should have deep experience with Java Spring Boot and Nodejs with strong focus on clean efficient and production grade code

You must have solid real-world AWS experience including designing and deploying cloud native applications using AWS CDK must have CloudFormation CFT Lambda API Gateway ECSEKS and other core AWS services Strong experience in building and managing Docker containers and images including Java based images is required along with CICD pipeline implementation

The candidate should also have experience working with MongoDB in AWS environments and be comfortable with microservices event driven architectures and system integration Exposure to AWS Bedrock and integrating AI capabilities into applications is highly preferred

We are looking for someone who is not just a developer but also strong in AWS handling system design and problem-solving with the ability to own and deliver complete solutions independently

Responsibilities

• Develop amazingly efficient and effective software using Java C Python Net Spring Boot Microservices APIs
• Enhance and maintain on prem and internal PAAS applications and actively rework these to AWS along project timelines
• Help to design and implement serverless patterns from containerized applications
• Build industry standard APIs and help with establishing consuming routing calls connectivity protocols and policy
• Design develop and implement architecture patterns that are optimized for SLAs reliability and cost
• Look upstream and downstream to see around corners and anticipate future consequences for immediate technical choices
• Help to establish and grow a culture of software craftsmanship best practices including TDDBDD and Test Automation both Unit and Integration Continuous Integration and Continuous Deployment
• Drive performance improvements including monitoring detailed metrics problems trends and costs in order to determine solutions required process changes etc that will make the function more efficient
• Ensure adherence to security standards and compliance with privacy rules and regulations early in the development
• Be aggressive to resolve and prevent technical debt
• Actively engage in Agile software development activities including sprint planning daily standups and retrospectives with an aim to continuously improve
• Collaborate frequently to share ideas and gain perspective Communicate critical information in a clear and timely manner listen to others and seek clarification to confirm shared understanding
• Initiate and lead code reviews and continuous improvement efforts
• Create usable documentation playbooks
• Effectively analyse trade offs between usability and performance needs communicate these across the team
• Optimize pace and meet deadlines
• Administer product upgrades and patches
• Provide assistance and support other team members where required including troubleshooting and maintenance of production systems programs applications
• 24/7 On call support rotation function is a component of this role