Project Lead(Java)

About NonStop io Technologies:

NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment.

Brief Description:

NonStop io is seeking a proficient Java Developer to join our dynamic team. In this role, you will contribute to designing, developing, and maintaining high-quality Java-based applications. You will work closely with cross-functional teams, ensuring the delivery of robust and scalable software solutions.

Responsibilities:

• Develop and Maintain: Write clean, efficient, and maintainable code for Java-based applications
• Collaborate: Work with cross-functional teams to gather requirements and translate them into technical solutions
• Code Reviews: Participate in code reviews to maintain high-quality standards
• Troubleshooting: Debug and resolve application issues in a timely manner
• Testing: Develop and execute unit and integration tests to ensure software reliability
• Optimize: Identify and address performance bottlenecks to enhance application performance

Qualifications & Skills:

• Strong knowledge of Java, Spring Framework (Spring Boot, Spring MVC), and Hibernate/JPA
• Experience with microservices architecture, distributed systems, and complex system design
• Familiarity with RESTful APIs and web services
• Proficiency in working with relational databases like MySQL or PostgreSQL
• Experience with build tools like Maven or Gradle
• Understanding of version control systems, especially Git
• Strong understanding of object-oriented programming principles and design patterns
• Familiarity with automated testing frameworks and methodologies
• Understanding of AWS environments and cloud-based application deployment
• Experience working with CI/CD pipelines and DevOps practices
• Excellent problem-solving skills and attention to detail
• Strong communication skills and ability to work effectively in a collaborative team environment 

Why Join Us?

• Opportunity to work on cutting-edge technology products
• A collaborative and learning-driven environment
• Exposure to AI and software engineering innovations
• Excellent work ethic and culture

If you're passionate about technology and want to work on impactful projects, we'd love to hear from you

Senior Full-Stack Developer – Skills

Experience: 6–9 years | Location: Bengaluru (5 days in office) | Joining: within 15 to 30 days

Must-have skills

Backend (Java and Spring Boot)

• 6+ years of hands-on Java development with Java 11/17+, including multithreading, concurrency, and the collections framework.
• Strong Spring Boot experience: REST APIs, Spring Data JPA, Spring Security, configuration, and exception handling.
• Designing clean, versioned REST APIs with consistent error handling and documentation (Swagger/OpenAPI).
• Performance tuning and optimisation of backend services.

Frontend (ReactJS)

• Hands-on production experience building React applications with hooks and functional components.
• State management using Redux or the Context API.
• Building reusable component libraries and structuring a scalable frontend codebase.
• Strong JavaScript (ES6+); TypeScript is preferred.
• Frontend performance optimisation (rendering, lazy loading, bundle size).

Database

• Strong SQL skills with PostgreSQL, MySQL, or SQL Server.
• Schema design, indexing, query optimisation, and transaction handling.
• JPA/Hibernate, including how to avoid common pitfalls such as N+1 queries and lazy-loading issues.

Security

• Authentication and authorisation using JWT and OAuth 2.0 / OIDC.
• Role-based access control.
• Secure coding practices (OWASP Top 10 awareness).

Quality and testing

• Unit and integration testing with JUnit and Mockito.
• Frontend testing with Jest or React Testing Library.
• Ability to set and enforce testing standards for the team.

Debugging and production support

• Debugging complex issues across the full stack (UI, API, and database).
• Root-cause analysis of production incidents and permanent fixes.

Senior-level responsibilities

• Solution design: breaking features into components, APIs, and data models before development starts.
• Code reviews: leading reviews and setting coding standards and best practices.
• Mentoring: guiding and unblocking two full-stack developers through pairing, reviews, and design discussions.
• Technical ownership: owning modules end to end, from design through deployment and support.
• Estimation and planning: sizing work realistically and flagging risks early to the CTO and product team.
• Communication: explaining technical decisions clearly to engineers, the CTO, and product stakeholders.

Good-to-have skills

• Microservices architecture and design patterns
• Microsoft Azure (preferred); AWS or GCP also valued
• Docker, with basic Kubernetes knowledge
• CI/CD pipelines (GitLab, Jenkins, or GitHub Actions)
• Messaging systems: Kafka, RabbitMQ, or Azure Service Bus
• Experience with multi-tenant SaaS products
• Exposure to aviation, training, EdTech, or other regulated domains
• AI/LLM integration in applications

Screening checklist

CheckMust showSpring BootProduction APIs they designed, not only builtReactProduction screens they built hands-on, not only integratedDesign ownershipAt least one module or feature they designed end to endCode reviewsEvidence they review others’ code and enforce standardsMentoringHas guided at least one junior or mid-level developerDebuggingCan walk through a real production issue they solvedAvailabilityCan join within 15 days and work 5 days from the Bengaluru office

Job Description

Role: Java React Lead

Location: Bangalore / Hyderabad

Experience: 8–14 Years

Notice Period: Immediate Joiners to 15 Days

Interview Process: First round – Virtual (HE Test); Second round / Client Interview – Face-to-Face (F2F), as applicable.

Key Responsibilities:

• Lead the design, development, and implementation of full-stack applications using Java, Spring Boot, Microservices, Kafka, and React.
• Develop scalable and high-performance backend services using Java and Spring Boot.
• Design, build, and maintain microservices-based architectures.
• Implement event-driven solutions and messaging workflows using Apache Kafka.
• Develop responsive and user-friendly front-end applications using React.
• Integrate front-end components with backend REST APIs and microservices.
• Review code, troubleshoot technical issues, and ensure application quality and performance.
• Collaborate with cross-functional teams to deliver business requirements.
• Provide technical guidance, conduct code reviews, and support team members.
• Ensure adherence to coding standards, security practices, and development best practices.

Required Skills:

• Strong hands-on experience in Java and Spring Boot.
• Extensive experience in Microservices architecture.
• Strong working knowledge of Apache Kafka.
• Hands-on experience in React.js.
• Experience in full-stack application development and REST API integration.
• Strong technical leadership, problem-solving, and communication skills.

Build Products. Solve Real Problems. Grow with Us.

Are you passionate about building scalable applications, solving complex engineering challenges, and working with modern technologies?

At NonStop io Technologies, we're looking for a talented Java Developer who enjoys creating high-quality software, collaborating with smart teams, and continuously learning new technologies.

This isn't just another development role. You'll work on real-world products, modern architectures, cloud technologies, AI-powered development tools, and systems that impact businesses and users every day.

If you're someone who loves writing clean code, takes ownership of your work, and wants to grow into a strong technical contributor or future tech lead, we'd love to connect with you.

About NonStop io Technologies

NonStop io Technologies is a product engineering company with 10+ years of experience building web and mobile applications for startups and enterprises.

We're a team of passionate engineers who believe in:

• Building products, not just projects
• Continuous learning and innovation
• Engineering excellence and quality delivery
• Long-term ownership and customer success
• Collaboration, transparency, and growth

Our engineers don't just execute tasks, contribute ideas, influence architecture decisions, and help shape products from concept to scale.

What You'll Be Working On

• Designing and developing scalable backend applications using Java and Spring Boot
• Building REST APIs and Microservices
• Working on cloud-ready applications and distributed systems
• Collaborating with product managers, designers, and engineers
• Improving application performance, scalability, and reliability
• Contributing to architecture and technical design discussions
• Leveraging AI-powered development tools to enhance productivity
• Working with CI/CD pipelines and modern software engineering practices.

Skills We're Looking For

Must Have

• 3–6 years of experience in Java development(Min 3 Years)
• Strong expertise in Java, Spring Boot, Spring MVC, and Hibernate/JPA
• Experience building Microservices and REST APIs
• Strong understanding of OOP, Design Patterns, and Clean Coding Practices
• Experience with MySQL or PostgreSQL
• Working knowledge of Git
• Hands-on experience with Frontend Technologies (HTML, CSS, JavaScript, React/Angular)
• Experience with Maven or Gradle

Good to Have

• Experience with AWS or cloud environments
• Exposure to CI/CD pipelines and DevOps practices
• Experience with distributed systems and scalable architectures
• Knowledge of automated testing frameworks
• Familiarity with AI-assisted development tools such as GitHub Copilot

Why Developers Love Working With Us

• Work on real products with real impact
• Opportunity to work on modern architectures and cloud technologies
• Exposure to AI-powered software development practices
• Learn directly from experienced engineers and architects
• Friendly, collaborative, and growth-oriented culture
• Freedom to experiment, innovate, and share ideas
• Continuous learning and career growth opportunities
• Work with a team that values ownership, trust, and engineering excellence

Interested in Joining Our Team?

We're always excited to connect with developers who are curious, driven, and passionate about technology.

If you enjoy building quality software, learning new technologies, and taking ownership of your work, this could be the right opportunity for you.

We look forward to connecting with you!

Job Summary

We are looking for an experienced Java Spring Boot Developer with strong expertise in Java, Spring Boot, and Microservices. The ideal candidate should have basic or junior-level experience with React.js and be comfortable working on backend development with some frontend integration.

Key Responsibilities

• Design, develop, and maintain scalable applications using Java and Spring Boot.
• Develop and maintain RESTful APIs and microservices-based applications.
• Build and enhance backend services based on business requirements.
• Work with databases, write optimized SQL queries, and manage data efficiently.
• Collaborate with frontend developers to integrate backend services with React.js applications.
• Participate in code reviews, debugging, troubleshooting, and performance optimization.
• Follow coding standards and contribute to application design and technical documentation.
• Work closely with cross-functional teams to deliver high-quality software solutions.

Mandatory Skills

• Java: Strong hands-on experience in Java development.
• Spring Boot: Experience developing applications using Spring Boot.
• Microservices: Hands-on experience designing and developing microservices.
• React.js: Basic or junior-level experience with React.js.
• REST APIs: Experience developing and integrating RESTful web services.
• SQL/Database: Working knowledge of SQL and relational databases.

Required Experience

• 5–7 years of overall software development experience.
• Strong backend development expertise in Java, Spring Boot, and Microservices.
• Basic working knowledge of React.js is sufficient.
• Good problem-solving, communication, and teamwork skills.

SHARE YOUR RESUME : { pavithra.e @vysystems.com },

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Job Description – Java + React Lead

Job Title: Java + React Lead

Experience: 8–14 Years

Location: Bangalore / Hyderabad

CTC: Up to 30 LPA

Notice Period: Immediate to 15 Days

Drive Date: 24th October 2026

Interview Process:

• Round 1: HE Test – Virtual
• L2 / Client Round: F2F

Mandatory Skills

• Java
• Spring Boot
• Microservices
• Kafka
• React
• Strong experience in full-stack application development
• Technical leadership experience

Roles & Responsibilities

• Design, develop, and maintain scalable applications using Java and Spring Boot.
• Design and implement Microservices-based architectures.
• Develop and manage event-driven applications using Kafka.
• Build responsive and reusable frontend applications using React.
• Develop and integrate REST APIs between frontend and backend services.
• Lead technical design discussions and provide solutions for complex business requirements.
• Review code and ensure adherence to coding standards and best practices.
• Troubleshoot and resolve application performance and production issues.
• Work closely with cross-functional teams, architects, and stakeholders.
• Mentor team members and provide technical guidance.
• Ensure applications are scalable, secure, reliable, and maintainable.

Candidate Profile

• 8–14 years of strong experience in software development.
• Strong hands-on expertise in Java, Spring Boot, Microservices, Kafka, and React.
• Experience in designing and developing enterprise-level applications.
• Strong understanding of REST APIs, distributed systems, and event-driven architecture.
• Excellent problem-solving, communication, and leadership skills.
• Candidates should be available to attend the F2F L2/Client round as required.

Job Description: Full Stack Java + React Developer

Role: Full Stack Developer

Skills: Java, Spring Boot, React.js

Job Summary

We are looking for an experienced Full Stack Developer with strong expertise in Java, Spring Boot, and React.js to design, develop, and maintain scalable web applications.

Required Skills

• Strong hands-on experience in Java and Spring Boot.
• Experience developing frontend applications using React.js.
• Good understanding of REST APIs and microservices architecture.
• Experience with JavaScript, HTML5, and CSS3.
• Knowledge of SQL databases such as MySQL, PostgreSQL, or Oracle.
• Familiarity with Git, unit testing, and CI/CD pipelines.
• Strong problem-solving and communication skills.

Preferred Skills

Full-Stack Developer, Java + Spring Boot + ReactJS (4–7 years, 2 positions)

Location: Bengaluru (5 days in office) | CTC: ₹16–24 LPA | Joining: within 15 days

Must-have skills

Backend: Java and Spring Boot

• Core Java 8+: OOP, collections, exception handling, streams
• Spring Boot: building REST APIs, controllers, services, repositories
• Spring Data JPA / Hibernate for database operations
• Request validation and global exception handling

Frontend: ReactJS

• React functional components and hooks (useState, useEffect)
• Props, state, forms, and conditional rendering
• Calling REST APIs from React (Axios or fetch) and handling responses and errors
• JavaScript ES6+, HTML5, CSS3

Database

• SQL: joins, aggregations, writing and debugging queries
• PostgreSQL, MySQL, or SQL Server
• Basic table and relationship design

APIs and integration

• Building and consuming RESTful APIs
• Connecting a React frontend to a Spring Boot backend end to end
• API testing with Postman or Swagger

Security basics

• Login and authentication flows, JWT
• Role-based access fundamentals
• Input validation and secure coding basics

Engineering practices

• Git: branching, pull requests, resolving merge conflicts
• Unit testing with JUnit and Mockito
• Debugging and fixing issues across UI, API, and database
• Taking part in code reviews
• Agile/Scrum way of working

Good to have

• TypeScript
• Java 17+
• Microservices
• Redux or Context API for state management
• CI/CD (GitLab, Jenkins, or GitHub Actions)
• Docker
• Azure (AWS or GCP also acceptable)
• Kafka, RabbitMQ, or Azure Service Bus
• SaaS product experience

What the candidate should be able to do

• Deliver a feature end to end on their own: React screen, Spring Boot API, and database changes
• Understand a requirement and turn it into working code with minimal hand-holding
• Debug production issues across frontend and backend
• Write clean, tested, reviewable code

Non-technical requirements

• Based in Bengaluru, or able to relocate immediately
• Willing to work 5 days a week from the office
• Can join within 15 days of offer acceptance
• Expected CTC within ₹16–24 LPA
• Clear communication and an ownership mindset

Experience- 8-10 Years

Java FSD

Springboot

Microservices

Angular

React

Only Immediate Joiners

Mumbai (No Relocation)

Java Full Stack Developer – 5+ Years Experience

Location: Chennai

Experience: 5+ Years

Employment Type: Full-Time

Job Description

We are looking for an experienced Java Full Stack Developer with strong expertise in Java-based application development and modern frontend technologies. The ideal candidate should have hands-on experience in building, developing, and maintaining scalable web applications.

Required Technical Skills

• Strong proficiency in Java.
• Hands-on experience with Spring Boot.
• Good knowledge of Hibernate and ORM concepts.
• Experience in React.js for frontend development.
• Working knowledge of AWS cloud services.
• Understanding of REST API development and integration.
• Knowledge of application development, debugging, and troubleshooting.

Roles & Responsibilities

• Design, develop, and maintain scalable web applications.
• Develop backend services using Java and Spring Boot.
• Build responsive frontend applications using React.js.
• Implement database interactions using Hibernate.
• Integrate applications with AWS services.
• Collaborate with team members to deliver quality software solutions.
• Troubleshoot issues and optimize application performance.

Candidate Requirements

• Minimum 5+ years of relevant development experience.
• Strong hands-on experience in Java Full Stack Development.
• Good problem-solving and communication skills.
• Ability to work independently and collaboratively.

Interested candidates: Apply with your updated resume.