
-Design and maintain efficient database solutions using RDBMS.
-Write complex SQL queries for data extraction and manipulation.
-Implement and optimize AWS services for scalable application deployment.
-Develop server-side logic using PHP and integrate front-end elements with JavaScript.
-Collaborate with teams to design, develop, and deploy web applications.

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 Work®. 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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We are looking for a MERN Stack Developer with 2+ years of real-world experience who thinks beyond CRUD APIs and UI screens. This role is for someone who understands how full-stack systems are designed, cares about scalability, performance, security, and clean architecture, and takes ownership of features end-to-end.
We value ownership, speed, clean code, and smart problem-solving. If you enjoy building products from scratch, thinking in systems, and shipping meaningful features—not just “finishing tasks”—this role is for you.
🧠 Key Responsibilities
- Design, develop, and maintain full-stack applications using MongoDB, Express, React, and Node.js
- Build scalable and maintainable backend APIs with proper validation, error handling, and security
- Develop clean, reusable, and performant React components
- Design database schemas and optimize queries for performance and scalability
- Translate product and business requirements into solid technical solutions
- Design frontend and backend architecture that can scale as the product grows
- Handle authentication, authorization, roles, and permissions
- Work with async operations, background jobs, and API integrations
- Manage application state properly (React state, context, or state libraries)
- Handle edge cases: loading, failure states, retries, and fallbacks
- Write clean, readable, and well-structured JavaScript / TypeScript code
- Follow and continuously improve coding standards and best practices
- Debug production issues using logs, reasoning, and root-cause analysis
- Review PRs, give constructive feedback, and contribute to team learning
- Work with designers to deliver good UX, not just “working UI”
- Collaborate closely with QA, design, and product teams
- Think ahead—identify technical debt, performance bottlenecks, and improvement areas
- Use AI tools responsibly to speed up development, debugging, and learning (with understanding)
✅ Qualifications Must Have
- 2+ years of hands-on experience with the MERN stack
- Strong knowledge of JavaScript and TypeScript, including OOP concepts
- Solid experience with Node.js & Express
- Hands-on experience with MongoDB, schema design, indexing, and aggregation
- Experience building and consuming REST APIs
- Strong understanding of async/await, promises, event loop
- Knowledge of HTML, CSS, responsive design (Tailwind / Bootstrap preferred)
- Experience with React hooks, component lifecycle, and state management
- Use React performance optimizations such as: React.memo useCallback, useMemo
- Implement code splitting and lazy loading using dynamic imports
- Work on or understand micro-frontend architecture and module federation
- Experience handling authentication (JWT, sessions, OAuth)
- Familiarity with Git, code reviews, and basic CI/CD concepts
- Exposure to real production issues (performance, bugs, scaling, failures, debugging)
Good to Have (Big Plus)
- Knowledge of Next.js or server-side rendering concepts
- Experience with Redis, queues (kafka, rabbitmq), or background jobs
- Experience with Docker, cloud deployments, or Nginx
- Understanding of performance tuning and lazy loading
- Experience working in a startup or fast-paced environment
❌ Who Should Not Apply
Please do not apply if:
- You only focus on “closing tickets” without questioning why something is being built
- You lack strong JavaScript fundamentals (arrays, objects, async/await, promises, event loop)
- You mostly copy-paste code without understanding it
- You never think about edge cases, failures, retries, or resilience
- You depend heavily on others for architecture or technical direction
- You avoid responsibility and say things like:
- “Frontend issue”
- “Backend issue”
- “It was already like this”
- “QA didn’t catch it”
- You are not comfortable explaining your code, decisions, or design choices
- You expect exact step-by-step instructions for every task
- You are not interested in learning and improving as a full-stack engineer
👉 This role is not for task executors.
We want problem solvers, thinkers and owners.
- 8 - 12 years of professional experience in .Net Framework 2.0/3.5/4.0/4.5 (C#, ASP.Net) and ADO.Net. Strong knowledge of software development, debugging and deployment tools Knowledge and experience of SQL Server (Any version).
- Knowledge of Versioning tools. Strong experience working with HTML, CSS, JavaScript, and jQuery.
- Should have Good Problem Solving and Analytical Skills Ability to work independently and as part of a team Ability to handle individual projects as well as team.
- Understanding of MVC, WCF, WPF and any mobile technology – beneficial Ability to learn new technology in a short period.
SSE/TL/ STL – Java Full Stack Dev
Overview of the Role –SSE/TL/ STL– Java Full Stack Dev (Java + React js)
Location: Chennai / Hyderabad
Reporting To: Project Manager
Role Description
We are looking for a candidate with Java backend experience combined with UI exposure preferably with React JS. The candidate shall be required to member of a SW Development team, demonstrating technical person. The candidate would be required to demonstrate high degree of ownership; velocity and mentor the team members.
Responsibilities
- · In this role, you should be able to work independently with little supervision.
- · You should have excellent organization and problem-solving skills.
- · If you also have hands-on experience in software development and agile methodologies, we’d like to meet you.
- · You will be responsible to develop high-quality software that is aligned with user needs and business goals.
Qualification
- · 4 to 10 years of end-to-end development using Java & UI technology (ReactJS)
- · Good knowledge of any relational database
- · Experience in JavaScript along with an OOP language
- · Well versed with testing concepts and methodologies
- · Agile/Scrum development and full SDLC from development to production deployment.
- · Analytical mind with problem-solving aptitude.
- · Ability to work independently.
- · Excellent written and oral communication skills.
Job description
- Develop Spring based server-side components of Enterprise applications.
- Build self-dependent modules which can integrate with external applications.
- Develop and manage well-functioning databases and applications
- We're looking for developers with 2-4 years of experience
Required Candidate profile
- 2 - 10 years experience
- Proven experience in server-side java development.
- Experience developing desktop and mobile applications
- String Knowledge in Java, Spring framework.
- Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache)
- Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
Perks and Benefits
Health insurancea learning environmentopportunity to work on cutting edge technologiesexposure to key customers in India and abroadwork closely with senior leadership that has already developed world class productsJob Responsibilities:
- Be a part of a team developing a rapidly growing product used by thousands of small businesses.
- Responsible for building large scale applications that are high performance, scalable, and resilient in an microservices environment
- Evaluate new technologies and tools such as new frameworks, methodologies, best practices and other areas that will improve overall efficiencies and product quality
Skill Set:
- 3+ years of working experience in developing API centric core Java/J2EE applications using Spring boot, JPA, REST API, XML and JSON
- Experience in frontend framework - any one of Backbone, Angular, Vue or React
- Working experience in any one of the Cloud Platforms - Google Cloud (preferable) or AWS
- Experience in large scale databases - NoSQL and MongoDB.
- Hands on experience in Eclipse based development and using Git, SVN, Junit
- Past experience in startups or product development is a big plus.
Job brief
We are looking for a Full Stack Developer to produce scalable software solutions. Youll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.
As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility.
Responsibilities
- Work with development team and product managers to ideate software solutions.
- Design client-side and server-side architecture.
- Build the front-end of applications through appealing visual design.
- Develop and manage well-functioning databases and applications.
- Write effective APIs.
- Test software to ensure responsiveness and efficiency.
- Troubleshoot, debug and upgrade software.
- Create security and data protection settings.
- Build features and applications with a mobile responsive design in mind.
- Write technical documentation.
Requirements
- B.E./B.Tech. in Computer Science or a degree in Computer Science background.
- Experience as a Full Stack Developer or similar role (Institute or Organization level).
- Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, jQuery)
- Knowledge of back-end languages and JavaScript frameworks (e.g. React and Node.js)
- Familiarity with MongoDB, web servers, and UI/UX design.
- Excellent communication and teamwork skills.
- Great attention to detail.
- Organizational skills.
- An analytical mind.
- Knowledge of Cloud Platforms like AWS or GCP is a plus.









