

· 7+ years of professional experience in front-end development.
· 7+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.).
· Strong understanding of JavaScript (ES6+), HTML5, and CSS3.
· Experience with RESTful APIs, GraphQL, and WebSocket integration.
· Proficiency in modern build tools (Webpack, Vite, Babel, etc.).
· Expertise in state management libraries (Redux, MobX) and React Query.
· Solid understanding of UI/UX principles and responsive design.
· Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
· Familiarity with modern CI/CD pipelines and version control tools (Git).

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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2) Skill required: ReactJs, HTML5, CSS3
Responsibilities :
- Develop new user-facing features
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Assure that all user input is validated before submitting to the back-end
- Collaborate with other team members.


Experience with deploying applications on cloud infrastructure, preferably AWS
• Experience in using REST APIs with the front end
• Experience in handling webMap applications using leading webMap Javascript APIs like ReactJS Leaflet, Google Maps Javascript API and Geoserver management
• Experience with the Agile/Scrum development model
• Strong experience in code versioning using Git.
• Strong design, development, and implementation experience.
• Very good experience in React JS, React Leaflet and Redux

Responsibilities
Develop high quality, secure, stable code for use in products and solutions for
customers, making it easier for other developers to maintain, enhance, reuse,
and localize
Work with Product Owner and/or Product Manager/Team to understand and help
refine functional requirements for new products
Develop and outline architecture and relationships between subsystems and
participates in review of those designs
Investigate and, if necessary, prototype technologies and algorithms relating to
the task
Break down a large problem into smaller components and provide a clear
solution for each piece
Ensure new code, feature or software product meets performance goals/metrics
Research external best practices and emerging technologies for possible
incorporation into company products and methodologies
Write and maintain the code following Test-Driven-Design principles
Minimum Qualifications
Bachelor’s degree in any Engineering discipline from reputed engineering
college
5 to 7 years of strong programming skills in Web and Cloud Technologies
Should have a very strong foundation in JavaScript, and must have a clear
understanding of basic web fundamentals such as prototype based inheritance,
scopes, Event Loop, Memory Management in JS, etc
Should be good at developing modular front-end applications and is expected to
have the knowledge to create good abstractions that can be reused . Should also
have in-depth understanding of latest ES6 standards such as spread operators,
arrow functions, etc
Should have strong programming skills in Web and Cloud Technologies
Should be strong in OOAD Concepts
Should have a strong hands-on in React, Typescript
Should have Hands-on experience in any of the backend language.
Should understand latest paradigms in Front End Development such as Pub-Sub
Pattern, Redux, RxJS, Service Workers, Client Caching, Lazy Loading, Dynamic
Injection, Bundle Optimisation, etc
Should have very good hands-on knowledge of CSS3 & HTML5
Should have good knowledge of Postman API Platform
Should have experience with Amazon web services – ECS, Lambda, S3, SQS, etc
Should have Hands-on experience of developing RESTful web services and
integrating the same with heterogeneous clients
Should have Hands-on experience with Relational or NoSQL Database’s
Should have a very clear understanding of TDD is expected and should have
good exposure to writing UT's and designing UI components with testability in
mind
Should have Strong Communication and Analytical skills
Flexibility under changing conditions and the ability to multi-task between
projects
Preferred Qualifications
Hands-on experience with C++
Nice to have experience with Python
Nice to have experience with CI/CD tools like Docker, Jenkins, etc
Nice to have a hands-on & Understanding of CSS Pre-processors such as SASS,
LESS, etc

Designation: React JS developer
Experience: 1-4 years
Location: Chennai
Must have work experience in React.JS and front end development.
Job description
- Strong programming skills in JavaScript.
- Experience with ReactJ, frontend frameworks like bootstrap, Jquery.
- Good knowledge in HTML5, CSS, CSS3 and Object Oriented concepts
- Experience in working with RESTful APIS.
- Experience with HTTP, HTTPS and WebSockets.
- Knowledge in version control- Git, Subversion.
- Exposure to OWASP standards and guidelines.

- 5 years professional experience writing full-stack REST-based applications.
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- 2-4 years of experience working with reactJS.
- Thorough understanding of the core principles of ReactJS.
- Prior experience with popular React.js workflows (such as Flux or Redux).
- Knowledge of modern authorization mechanisms, such as JSON Web Token.
- Knowledge of Spring Boot, Spring Security, Spring JPA & Hibernate.
- Experience working with SQL and NoSQL databases.
- Adopted opinionated Restful web services design patterns.
- Knowledge of Application containerization technologies, including Dockers, Kubernetes , and cloud-vendor implementations (AWS, Azure, other).
- Ability to pick up and learn new technologies quickly.
- Strong verbal and written communication skills.


Location: Candidates from Kerala only
- DOT NETCore,.NET, C#,NET Core, http://asp.net/" target="_blank">ASP.NET Core Rest API, Odata,
- Blazor, HTML, CSS, Bootstrap, JavaScript,
- Development of Docker container-based microservices,
- Azure SaaS Services (Azure Service Bus, Azure Kubernetes Services, CosmosDB, Cognitive Services, Redis),
- Azure DevOps (ALM Platform),
- CI/CD delivery via Azure Pipelines,
- MS-SQL (T-SQL) and No-SQL databases (MongoDB),
- Object-Oriented Programming Principles, SOLID, Design patterns
- Good communication skill

- Collaborate with product, design, and other engineering teams to brainstorm and resolve complex problems.
- Ensure the quality of code is up to the highest standard of readability, conciseness, efficiency, modularity, and extensibility.
- Experience with the entire Software Development Life Cycle (SDLC)
- Solid communication skills: Demonstrated ability to explain complex technical issues to both technical and non-technical audiences
- Talking to customers and business teams to suggest improvement areas in product flows.
- Create peer learnings for team members and build context for new teammates
- Help with building the company's tech team and iterating on the hiring framework.
- Provide regular feedback to your team (peers and managers) to ensure continuous improvement.
- Keeping abreast with the latest technologies and working on your skills regularly.
Must-haves
- At least 3 years of experience working in frontend for desktop and mobile web.
- Familiar with design tools and convert them to actual code (HTML+CSS+JavaScript)
- Mastery in DOM Manipulation (including Jquery) and understand components, CTAs.
- Well-versed in other non-vanilla languages (ex. TypeScript)
- Well-versed in standard frontend framework (ex. ReactJS)
- Understanding of GraphQL APIs.
- Deep understanding of web technologies in various mobile systems
- Have empathy for the users you build for
Good to have
- Experience in the fintech industry
- Experience leading design and implementation of robust and secure web services.

- Excellent knowledge of multiple technologies like .NET 4.0-4.6, ASP.NET, MVC, CSS, C# .NET, VB.NET, AJAX, JQuery, AngularJS, ADO .NET, Entity Framework.
- Working Knowledge in MVC Architecture will be preferable.
- Experience in Web Services, WCF, Web API.
- Experience in Windows Forms, WPF.
- Experience in JavaScript, Ajax, JQuery.
- Working knowledge in SQL queries Stored Procedures, with a strong background in SSRS/SSIS report writing.




