Java Spring Boot+ React JS Full-Stack Developer

Hvantage; United States; Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Competitive contract rate

Flexible onsite/hybrid/remote work

Job summary

Hvantage Technologies Inc. is seeking a Java Spring Boot & React JS FullStack Developer to join a crossfunctional delivery team.

You will build mission-critical web applications with a focus on performance, security, and scalability, across backend microservices and frontend interfaces. Ideal candidates have 8+ years of experience in full-stack development, strong knowledge of Java Spring Boot, React, TypeScript, and modern cloud practices.

Qualifications

• 8+ years in fullstack development with Java Spring Boot and React.
• Experience deploying microservices and SPAs in production.
• Cloud proficiency with AWS and/or Azure and CI/CD tooling.

Responsibilities

• Architect and implement microservices and RESTful APIs with Spring Boot.
• Develop data access layers with Spring Data JPA and optimize SQL.
• Build frontend UIs with React JS, TypeScript, and CSS frameworks.
• Implement security (OAuth2, JWT) and caching; perform code reviews.
• Collaborate with UX/UI, integrate REST services, and ensure WCAG compliance.

Skills

Java Spring Boot

React JS

TypeScript

REST APIs

SQL Databases

Tools

Docker

Kubernetes

GitHub Actions

Azure DevOps

Terraform

Job description

Job Title: Java Spring Boot & React JS FullStack Developer

Location: OnSite / Hybrid / Remote (India)

Engagement Type: Full-time

Experience: 8+ Years in FullStack Development

About Hvantage Technologies Inc.

Hvantage Technologies Inc. is a global leader in delivering innovative IT solutions across Banking, Financial Services, Insurance (BFSI), and Healthcare industries. We specialize in building secure, scalable, and highperformance enterprise applications that drive digital transformation and business growth.

Project Overview

You will join a crossfunctional delivery team responsible for developing a missioncritical web application. Your work will enable rapid feature releases to global users, ensuring reliability and performance under heavy load. This highvisibility project requires deep expertise in both backend and frontend technologies, as well as cloud deployment best practices.

Key Responsibilities

Backend (Java Spring Boot)

• Architect and implement microservices and RESTful APIs using Java Spring Boot, ensuring modularity and maintainability.
• Develop robust data access layers with Spring Data JPA and optimize SQL queries for MySQL or PostgreSQL.
• Enforce security best practices (OAuth2, JWT, rolebased access control) and implement caching strategies.
• Conduct rigorous code reviews, unit testing (JUnit/Mockito), and debug production issues.

Frontend (React JS)

• Build dynamic, responsive user interfaces using React JS, TypeScript, and modern CSS frameworks.
• Implement global state management with Redux (or Context API) and ensure smooth data flow between UI and backend.
• Integrate RESTful services, handle asynchronous data fetching, and manage routing with React Router.
• Collaborate with UX/UI designers to deliver polished, accessible components that comply with WCAG standards.

AI-Assisted Development

• Demonstrate decent hands-on exposure to AI coding tools such as Claude Code and Cursor to accelerate development workflows and improve code quality.
• Leverage AI pair-programming tools to assist in code generation, refactoring, debugging, and documentation, while critically reviewing AI-generated outputs.
• Stay current with evolving AI development tooling and advocate best practices for responsible, effective use of AI assistance within the team.
• Use AI tools to enhance productivity during sprint cycles without compromising code quality or security standards.

Cloud & DevOps

• Design, deploy, and manage application infrastructure on AWS (Elastic Beanstalk, Lambda, S3, RDS) and/or Azure (App Services, Functions, Blob Storage).
• Create and maintain CI/CD pipelines using Azure DevOps, GitHub Actions, or Jenkins to automate build, test, and deployment processes.
• Implement infrastructure as code (IaC) with Terraform or ARM templates, and monitor application health using CloudWatch or Azure Monitor.

Collaboratio & Agile Practices

• Participate in scrum ceremonies sprint planning, daily standups, retrospectives and contribute to story grooming.
• Work closely with product managers to refine feature requirements and define acceptance criteria.
• Mentor junior developers, share knowledge on best practices, and foster a culture of continuous improvement.

Quality Assurance & Maintenance

• Develop and execute comprehensive unit, integration, and endtoend tests using Jest, React Testing Library, or Selenium.
• Perform code reviews and enforce coding standards (SOLID principles, clean code).
• Troubleshoot performance bottlenecks, memory leaks, and other production issues to ensure optimal user experience.

Required Skills & Qualifications

Experience

• 8+ years in fullstack development roles with substantial handson experience in Java Spring Boot and React JS.
• Demonstrated history of building and deploying microservices and singlepage applications in production environments.

Technical Expertise

• Java Spring Boot, Spring Data JPA, Spring Security
• React JS, Redux, TypeScript, HTML5, CSS3
• RESTful API design, JSON, Web Sockets
• SQL databases (MySQL, PostgreSQL) and query optimization
• AWS (Elastic Beanstalk, Lambda, S3, RDS) and/or Azure (App Services, Functions)
• CI/CD with Azure DevOps, GitHub Actions, or Jenkins
• Infrastructure as Code (Terraform, ARM templates)
• AI coding tools Claude Code, Cursor, or similar AI pair-programming assistants

Soft Skills

• Strong analytical problemsolving and debugging skills
• Excellent verbal and written communication
• Proven ability to mentor and lead junior team members
• Selfmotivated, detailoriented, and able to manage multiple priorities

Preferred Qualifications

• Containerization with Docker and orchestration using Kubernetes
• Experience with GraphQL, RxJS, and Webpack
• Familiarity with monitoring/logging tools (ELK stack, Prometheus)
• Previous work in BFSI or Healthcare domains
• Relevant certifications (Azure Solutions Architect, AWS Certified Developer)
• Hands-on experience with AI development tools such as Claude Code, Cursor, GitHub Copilot, or similar platforms

Engagement Benefits

• Competitive contract rate based on experience
• Flexible working arrangements (onsite, hybrid, or remote)
• Exposure to advanced cloud architectures and cuttingedge technologies
• Opportunity to make significant contributions to highimpact projects
• Collaborative and supportive team culture