Java Fullstack Developer at Wissen Technology Ā· Bengaluru (Bangalore) Ā· 5 - 10 years Ā· Profitable Ā· Posted 31 Jul 2025

Location: Bangalore
Experience: 5 to 10 years
Joiners: Immediate / Notice Period < 30 days
Company: Wissen Technology
š Job Overview:
We are looking for a passionate and skilled Fullstack Developer with strong backend expertise in Java and advanced frontend proficiency in React, JavaScript, and TypeScript. The ideal candidate will have a deep understanding of core computer science concepts like Multithreading, Collections, and Immutability, and should be highly proficient in building scalable, maintainable systems.
š ļø Key Responsibilities:
- Design and develop robust, scalable backend systems using Java (preferably Java 8 or higher).
- Build interactive, high-performance UIs using React.js, JavaScript, and TypeScript.
- Implement complex business logic with clean and maintainable code.
- Write efficient, thread-safe code utilizing Multithreading, HashMaps, HashSets, and Collections.
- Work with iterators and immutability principles to build reliable data flows.
- Collaborate with product managers, designers, and QA teams in an Agile environment.
- Troubleshoot and debug production issues as needed.
ā Must-Have Skills:
- Strong programming experience in Core Java, Multithreading, and Java Collections Framework.
- Solid knowledge of React.js, JavaScript (ES6+), and TypeScript.
- Hands-on with HashMap, HashSet, Iterators, and Immutable Data Structures.
- Experience working with REST APIs, Spring Boot, and microservice architectures.
- Familiarity with version control systems like Git and CI/CD pipelines.
- Strong problem-solving and analytical skills.
š¼ Good to Have:
- Exposure to cloud platforms (AWS, GCP, Azure).
- Experience with state management tools like Redux or Context API.
- Knowledge of performance optimization and memory management in JavaScript.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to WorkĀ®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Exp- 3-10 years
Notice period- Serving notice period or immediete
Location-Bangalore
Required Skills and QualificationsĀ
Backend:Ā
⢠Strong programming skills in Core Java, Java 8+Ā
⢠Experience with Spring Boot, RESTful APIs, Microservices architectureĀ
⢠Good understanding of JPA/Hibernate, and SQL/NoSQL databasesĀ
Frontend:Ā
⢠Proficient in React.js, JavaScript (ES6+), HTML5, CSS3Ā
⢠Experience with Redux, React Hooks, and component-based architectureĀ
⢠Familiarity with front-end build tools (Webpack, Babel, NPM)
Key Responsibilities
Ā
⢠Develop and maintain scalable backend services using Core Java / Spring BootĀ
⢠Design and implement responsive, high-quality front-end interfaces using React.jsĀ
⢠Integrate backend APIs with frontend components seamlesslyĀ
⢠Collaborate with product managers, architects, and QA to deliver quality softwareĀ
⢠Ensure code quality through unit testing, code reviews, and performance tuningĀ
⢠Troubleshoot and debug production issues as neededĀ
Full-Stack Developer, Java + Spring Boot + ReactJS (4ā7 years, 2 positions)
Location: Bengaluru (5 days in office) | CTC: ā¹16ā24 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 ā¹16ā24 LPA
- Clear communication and an ownership mindset
JOB DESCRIPTION
Experience: 5-8 years
Fullstack Developer (React Heavy+ Java)
Required Skills and QualificationsĀ
Frontend:Ā
⢠Proficient in React.jsĀ
⢠Experience with Redux, React Hooks, and component-based architectureĀ
⢠Familiarity with front-end build tools (Webpack, Babel, NPM)
Backend:Ā
⢠Strong programming skills in Core Java, Java 8+Ā
⢠Experience with Spring Boot, RESTful APIs, Microservices architectureĀ
⢠Good understanding of JPA/Hibernate, and SQL/NoSQL databasesĀ
Key Responsibilities
Ā
⢠Develop and maintain scalable backend services using Core Java / Spring BootĀ
⢠Design and implement responsive, high-quality front-end interfaces using React.jsĀ
⢠Integrate backend APIs with frontend components seamlesslyĀ
⢠Collaborate with product managers, architects, and QA to deliver quality softwareĀ
⢠Ensure code quality through unit testing, code reviews, and performance tuningĀ
⢠Troubleshoot and debug production issues as needed
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
š Job Description: Full Stack Java Developer (4.5+ Years)
š Position Overview
We are seeking a highly motivated Full Stack Java Developer with 4+ years of professional experience to join our dynamic team. The ideal candidate will be responsible for designing, developing, and maintaining scalable web applications, working across both backend and frontend technologies.
š Key Responsibilities
- Develop and maintain Java-based backend services using Spring Boot, Hibernate/JPA, and RESTful APIs.
- Build responsive and interactive frontend applications using React.
- Experience with AI toolsĀ
- Collaborate with cross-functional teams to define, design, and ship new features.
- Optimize application performance and ensure scalability.
- Write clean, maintainable, and testable code with unit testing frameworks (JUnit, Mockito).
- Participate in code reviews, troubleshooting, and debugging across the stack.
- Work with CI/CD pipelines, Docker/Kubernetes, and cloud platforms (AWS/Azure/GCP).
šÆ Required Skills & Qualifications
- Bachelorās degree in Computer Science, Engineering, or related field.
- 4+ years of experience in Java development and full stack application design.
- Strong knowledge of Spring Boot, Hibernate/JPA, REST APIs.
- Hands-on experience with frontend frameworks (React/Angular/Vue.js).
- Proficiency in SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB).
- Familiarity with DevOps tools (Git, Jenkins, Docker, Kubernetes).
- Strong problem-solving skills and ability to work independently.
š Preferred Qualifications
- Experience with microservices architecture.
- Exposure to cloud-native applications (AWS/Azure/GCP).
- Knowledge of Agile/Scrum methodologies.
- Good communication and teamwork skills.
Job Description:
We are looking for a skilled Java Full Stack Developer with strong experience in Java, Spring Boot, and Microservices, along with basic or junior-level React.js knowledge. The candidate will be responsible for developing scalable backend applications and supporting frontend development.
Key Responsibilities:
- Develop and maintain applications using Java and Spring Boot.
- Design, develop, and integrate RESTful APIs.
- Build and maintain Microservices-based applications.
- Work with databases and optimize application performance.
- Support frontend development using React.js.
- Collaborate with cross-functional teams to deliver quality solutions.
Required Skills:
- Strong experience in Java and Spring Boot.
- Hands-on experience with Microservices architecture.
- Experience developing REST APIs.
- Basic or junior-level knowledge of React.js.
- Understanding of databases, debugging, and application performance.
- Good problem-solving and communication skills.
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Job Description: Java Full Stack Developer ā Java & React
Experience: 5+ Years
Location: Hyderabad
Key Skills:
- Strong experience in Java
- Hands-on experience with React
- Strong knowledge of Spring Boot
- Experience with Microservices
- Good knowledge of REST APIs
- Experience in developing scalable and high-performance applications
- Strong problem-solving and debugging skills
Roles & Responsibilities:
- Design, develop, and maintain full-stack applications using Java and React.
- Develop scalable backend services using Spring Boot and Microservices.
- Build responsive front-end applications using React.
- Develop and integrate RESTful APIs.
- Perform coding, testing, debugging, and code reviews.
- Collaborate with cross-functional teams throughout the development lifecycle.

Technical Skills
ā Strong in React / Angular / Vue.
ā Required skills: state management, responsive UI design, component-based architecture.
ā Strong in at least one backend stack such as Java (Spring Boot) / .NET / Python.
ā Experience with REST APIs / GraphQL and authentication / authorization.
ā Strong in PostgreSQL / MySQL / SQL Server.
ā Knowledge of NoSQL such as MongoDB / Redis is a plus.
ā Understanding of microservices / modular monolith, API-first design, and event-driven systems at a basic level.
ā Familiar with Git, CI/CD pipelines, and Docker.
ā Cloud technology exposure in Microsoft Azure / AWS.
- 5ā8 years of experience in full-stack development.
- Strong hands-on experience with React.js and JavaScript/TypeScript.
- Develop reusable, responsive, and high-performance UI components.
- Experience with React Hooks, Redux, Context API, and frontend state management.
- Strong knowledge of Core Java, Java 8/11/17+, and object-oriented programming.
- Hands-on experience with Spring Boot, Spring MVC, and Spring Security.
- Design, develop, and integrate RESTful APIs and microservices.
- Work with databases such as PostgreSQL, MySQL, or Oracle.
- Write unit, integration, and frontend tests using tools such as JUnit, Jest, or React Testing Library.
- Collaborate with product managers, UI/UX designers, QA engineers, and development teams.
- Participate in design discussions, code reviews, sprint planning, and Agile ceremonies.
- Troubleshoot application issues and optimize system performance.
- Use Git, Maven/Gradle, and CI/CD pipelines for development and deployment.
- Exposure to Docker, Kubernetes, AWS, or other cloud platforms is an added advantage.
- Strong problem-solving, communication, and teamwork skills.
Job Description
We are looking for a skilled Java Full Stack Developer with strong experience in backend development using Java and Spring Boot, along with frontend technologies such as React.js or Angular. The candidate should have hands-on experience building scalable web applications, REST APIs, and microservices.
Key Responsibilities
- Develop and maintain full-stack applications using Java, Spring Boot, and modern frontend frameworks.
- Design and implement RESTful APIs and microservices.
- Build responsive user interfaces using React.js or Angular, JavaScript, TypeScript, HTML, and CSS.
- Integrate frontend applications with backend services and databases.
- Write clean, reusable, and maintainable code following coding standards.
- Perform unit testing, debugging, code reviews, and performance optimization.
- Work with SQL and NoSQL databases.
- Support CI/CD pipelines, application deployments, and production troubleshooting.
- Collaborate with QA, DevOps, and product teams in an Agile environment.
Primary Skills
- Java 8/11/17+
- Spring Boot / Spring Framework
- Microservices Architecture
- REST APIs
- React.js or Angular
- JavaScript / TypeScript
- HTML5 / CSS3
- SQL / Database Integration
Job Title: Java Full Stack Developer
Location: Mumbai
Experience: 5ā7 Years
Job Description:
We are looking for an experienced Java Full Stack Developer with strong knowledge of Java, Spring Boot, Microservices, JavaScript, and React. The candidate should have hands-on experience in developing scalable applications, building REST APIs, and working on both backend and frontend development.
Key Responsibilities:
Develop and maintain applications using Java, Spring Boot, and Microservices. Build and integrate RESTful APIs and develop responsive user interfaces using React and JavaScript. Work with databases, troubleshoot technical issues, and ensure application performance and code quality. Collaborate with cross-functional teams throughout the development lifecycle.
Skills:
Java, Spring Boot (SB), Microservices (MS), JavaScript (JS), React.js, REST APIs, SQL, and application development.








