Java Full Stack Developer

Location: Bangalore

Experience: 5 to 10 years

Joiners: Immediate / Notice Period < 30 days

Company: Wissen Technology

🔍 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.

🛠️ 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.

✅ 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.

💼 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.

• 6 to 9 yrs You can write backend code using primarily Java
• You can contribute to frontend code stack in ReactJS or other Javascript framework
•  front-end technologies (ReactJS /AngularJS) experience
• 3+years of experience with web application development
• 3+ years of database experience
• 3+ years of Webservices or API Development experience
• 3+ years of experience with Java development
• Web Framework experience with Spring MVC
• Strong work experience with Java, Spring Boot, Microservices, MongoDB
• Web UI experience with CSS, AJAX, JavaScript, Bootstrap, AngularJS / ReactJS
• Familiarity and working knowledge Docker, Jenkins
• Database and caching experience, SQL and NoSQL (SQL, Postgres)

We are looking for an IMMEDIATE JOINER - As Java Developer you will be responsible for creation and implementation of backend services (API / Microservice). 

Roles & Responsibilities:

1. Designing and developing performant REST APIs, Microservices.
2. Data Model design.
3. Participating in requirements analysis.
4. Writing clean, scalable code and   Implementing unit tests.
5. Participating in peer code reviews.
6. Optimizing the overall performance of Application.
7. Strong focus on data governance and security.
8. Be a strong Agile team member.

Skills:

1. Conceptually strong in Design Patterns and OOP
2. Hands on with technologies like Spring Boot, Java Web services/APIs (SOAP, REST, JSON, Maven, Gradle, jUnit)
3. Working knowledge with AWS is a must. 
4. Excellent understanding of data structures, threading.
5. Working knowledge with any of the Unit Test Frameworks such as jUnit.
6. Good problem-solving skills. Attention to details.
7. Should be a quick learner and keen on learning new technologies.
8. Strong in debugging, troubleshooting and performance tuning for SQL queries
9. Proficient in RDBMS (MySQL, Mssql) and NoSQL databases (mongo, HBase)
10. Excellent oral and written communication skills.

Additional Skills (Optional):

1. Exposure to Node.js / python 
2. Exposure to Lambda functions.
3. Exposure to AWS Data Storage.
4. Knowledgeable on TDD.

Qualifications & Experience:

1. BE/B.Tech, ME/MTech. 7+ years of Java development experience, including Spring, Spring Boot

Are you passionate in coding, art and blockchain? Do you wish to face challenges ahead, develop and deliver features that will be extraordinary towards users? We are looking for experienced developers (blockchain, frontend, backend) to join our team and start a revolution!

About the role as a full stack engineer at Torum, you will be remotely working alongside our core development team from India, Turkey, Malaysia and other regions in the future. A good mindset of forward planning should be cultivated to better your performance!

You will also get involved in constant discussions with our Lead Developer and Operational team members regarding the ideas, concepts as well as feature specifications to further enhance our platform.

Key Responsibilities & Scope

• Delivering well tested, high quality software
• High scalability and flexibility solutions using micro services
• Work well in teams (bonus points if able to lead)
• Qualifications & experience

Highly Favored Experience

• Experience with Solidity
• Web3 JS experience
• Good software engineering skills, insights, and experience
• Good knowledge of cryptography
• Important: Ability to communicate (orally and verbally) well with the team in English
• Experience in building large-scale apps like Social Media, E-commerce, etc. where performance, scalability, and availability are the top priorities

Qualifications and Experience location GMT+8 or GMT+5:30

• Ability to work remotely or on-site (if Malaysia)
• More than 3 years of experience with Node JS (Express framework)
• More than 3 years of experience with React JS
• More than 3 years of experience with experience with MongoDB
• Experience in leading, or being a Senior in a full-stack team to build, constantly improve and optimize a commercial level product, with a decent user base
• Passion for best design, developing and coding practices
• Creating servers and databases for functionality
• Maximizing application performance, uptime, and scalability, maintaining high standards of code quality and thoughtful application design
• Excellent debugging and optimization skills
• Unit/integration testing experience

Company description:

We are a startup company based out of Mohali developing mobile and web applications that changes the way people use technology. We live in the realm of rising, ever-evolving technology. From the cassette tape to nanotech skeletons, we've come a long way. Splitting an atom is no big deal  and who'd have thought that we'd talk through airwaves? Change is inevitable, and the tide that brings it.

At Relinns, we breathe tech solutions and embrace innovation with open arms. With over 5 years of experience, we've had phenomenal growth which acts as a testimony to the knowledge we've come to gather over time. We have been fortunate enough to get an opportunity to work with clients such as Apollo Tyres, Khatabook, Shahi Exports, Manchester City Football Club, etc.

We invite you to join us in developing something new and innovative for this world.

• Immense scope for learning and development

• Work with an innovative and fun environment

• Expert in C#, http://asp.net/">ASP.NET MVC, .NET Core 3.1/.Net 5 ,Angular 8 +,Typescript, JavaScript and REST API Services, Entity Framework.
• Solid understanding of object-oriented programming techniques (Inheritance, interfacing, extensions, clean Architecture,Mediatr etc).
• Experience building reusable components and frontend libraries.              
• Ensuring the entire stack is designed and built for speed and scalability
• Manage the lifecycle of code development, from ideation to sprints to deployment.
• UI Technologies (Angular, React, Typescript)
• working with public cloud (Azure)

What do I need to be Eligible for this Role?

• 3+ years of experience in http://asp.net/">ASP.NET and 1+ years of experience in Angular 
• Azure SQL ,Azure Devops
•  Knowledge of containerization technologies such as Docker and Kubernetes is a plus.
• Excellent communication, organizational, and planning skills
• Working experience of Agile development methodologies and of DevOps integration
• Exposure to JIRA or other ALM tools to create a productive, high-quality developmen
• Working experience in swagger for API documentation and TEST UNIT in order to run them before building and release.
• Microservices
• C#, WCF Services, Windows Services, Web API, Entity Framework NET Core 3.1
• Web Services (XML, JSON, REST, SOAP)
• Messaging technologies(Kafka/MQ)
• In-memory databases (Redis)
• Relational databases (SQL server/DB2)

We are looking for people who have a passion for solving problems, can write exceptional code and don't shy away from challenges and new technology. Our products affect thousands of people everyday and we want someone who would love to contribute towards that end.

If you:

• Know how to write robust and reliable systems
• Have knowledge of managing and scaling for high volume traffic
• Are someone who enjoys execution of an idea as much as finding new and innovative ideas to solve problems
• Actively try to gain more knowledge and pass on knowledge to your peers

Then we are definitely a right match for you

What we expect from you:

• Excellent understanding of web applications.
• Good knowledge about AWS or similar services.
• Ability to quickly learn new technologies.
• Good understanding of the delivery pipeline in a team environment.
• Innovative and creative problem solving.
• Ability to understand and communicate across teams and departments.

What you will be doing:

• Work as a part of a team or individually.
• Build products that help us expand our portfolio and drive growth for the organisation.
• Take up ownership of the entire lifecycle of products.
• Help, mentor and guide interns, new joinees and other developers.
• Engage with the client and people from other departments to come up with the best solutions.
• Point out existing problems with our solutions, processes and architecture

What we look for:

• Should have used/contributed to popular Open Source Libraries and Tools
• Should have worked on web technology (Rails / SpringBoot / Django / NodeJs)
• Always on the cutting edge of technology.
• Ability to divide a larger problem into smaller pieces for everyone to work on.
• Process driven and detail oriented
• Should have mentored new joinees
• More than 3 years of relevant experience in the domain
• Should be able to work out of our Bangalore office.

• Very strong in HTML & mobile techniques;
• Strong knowledge of Codeigniter / Laravel;
• Front-end skills HTML, CSS, CSS3, CSS3 animations, JavaScript,bootstrap;
• Experience with Angular or React;
• Popular JavaScript libraries/frameworks e.g. jQuery, LESS / Sass;
• Back-end skills PHP, MySQL or equivalent language such as C#, java, etc.;
• Strong knowledge of source control e.g. Bitbucket, Github;
• Experience with deployment and configuration of common stacks (LAMP, MERN, MEAN)
• Ability to work with design files for web development needs;
• In-depth experience with MongoDB & MySQL, including SQL & PL/SQL, or NoSQL query building
• Knowledge of tools & frameworks such as Gulp, Grunt, Node, Composer, etc.
• Ability to work with APIs;
• Experience working with CMS systems e.g. Magento, Wordpress;
• Good knowledge of web hosting environments e.g. cPanel, AWS, Google;
• Python skills are a plus