Senior React js Developer

Wissen Technology is Hiring for React Developer

About Wissen Technology:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Job Summary:

We are seeking highly motivated React Developer

Experience: 8+ Years

Location: Pune/ Mumbai

Mode of Work: Full Time

Key Responsibilities:

• Should have 8+ years hands on experience in web technologies like JavaScript, HTML5 & CSS.

• Expert level knowledge of JavaScript including latest edition(s) of JavaScript (ES2023). Knowledge of typescript is a plus.

• Hands on experience with JavaScript frameworks like React 17 and above versions

• Good understanding of asynchronous request handling, partial page updates like Promises, RxJS

• Proficient in advanced CSS3, HTML5 and Bootstrap. Exposure to css-in-js libraries like styledjs or others is beneficial.

• Able to translate mockups in figma or illustrator to actual working components.

• Working experience on testing tool like karma/jasmine/enzyme.

• Basic understanding of nodejs is beneficial.

• Proficient understanding of code versioning tools, such as Git

• Excellent analytical/reasoning skills

• Good team player

• Excellent written and verbal communication skill

Overview

Adesso India specialises in optimization of core business processes for organizations. Our focus is on providing state-of-the-art solutions that streamline operations and elevate productivity to new heights.

Comprised of a team of industry experts and experienced technology professionals, we ensure that our software development and implementations are reliable, robust, and seamlessly integrated with the latest technologies. By leveraging our extensive knowledge and skills, we empower businesses to achieve their objectives efficiently and effectively.

Job Description

We are seeking a skilled Frontend Developer with expertise in developing frontends for Websites, based on Web-Content-Management-Systems to join our dynamic team. As a Senior Frontend Developer, you will be responsible for developing and maintaining the frontend of complex corporate Websites. You will collaborate with cross-functional teams to design, develop, and deploy high-quality software solutions.

Responsibilities:

Develop and maintain frontend components for websites using state of the art web standards as Vue/Nuxt, React/Next or Web Components.

Work closely with backend developers to ensure seamless integration and data flow.

Optimize frontend performance to ensure fast loading and smooth user interactions.

Implement best practices for web accessibility (WCAG) and cross-browser compatibility.

Ensure responsive design and mobile-first principles are consistently applied.

Maintain high-quality coding standards, documentation, and unit testing. 

Requirements:

Proven experience as a Frontend Developer with expertise in Web-CMS-Projects.

Strong proficiency in HTML5, CSS3, and JavaScript/TypeScript (Vue/Nuxt, React/Next or Web Components).

Familiarity with frontend build tools (e.g., Webpack, Babel, npm/Yarn).

Experience in UI/UX best practices and component-based design using atomic design principles and design systems.

Excellent understanding of responsive design, mobile-first principles, and frontend performance optimization.

Strong collaboration skills to work effectively in cross-functional teams.

Years of Experience:

3-5 years of frontend development experience in the context of Websites and Web-CMS.

If you are a passionate frontend developer with expertise in Website-Development and have the required skills, we encourage you to apply and join our team. 

Skills & Requirements

Frontend Development, Web-CMS, HTML5, CSS3, JavaScript, TypeScript, Vue/Nuxt, React/Next, Web Components, Webpack, Babel, npm/Yarn, UI/UX Design, Atomic Design, Design Systems, Responsive Design, Mobile-First Development, Frontend Performance Optimization, Cross-Browser Compatibility, Web Accessibility (WCAG), Unit Testing.

- BE/BTech degree in CS/IT with more than 7 CGPA or similar.

- 5 to 8 years of proven experience as a Frontend Web UI engineer or similar role.

- Must have good understanding of Data Structures/Algorithms/Databases and other CS concepts.

- Should be able to design/implement/deploy end-to-end systems.

- Good/Hands on experience with Angular 8+ and scripting programming languages like JavaScript/Typescript.

- Good/Hands on experience with HTML5, CSS, SCSS, Angular Material or any other UI libraries

- Good/Hands on experience in writing the unit tests.

- Must have worked designing the Angular Modules based on the UI/UX provided with RxJs, NgRx, Websockets etc.

- Should be inquisitive enough to pick and work on multiple programming languages and frameworks based on specific cases.

- Having worked in at least one of the cloud computing services like AWS/Azure/Google Cloud is a plus.

- Good Knowledge on Dockers/Kubernetes is a plus.

- Having basic understanding of (or having worked in) server-side web frameworks like NodeJS, Flask, Django is a plus.

• Experience with Web Components and Custom Elements
• Understanding of data visualization concepts and technologies (SVG, D3.js)
• Familiarity with JavaScript build tools such as Webpack.
• Git Source Control
• Unit and E2E Testing - Cypress.io / Chai / Karma / Jasmine / etc.
• Experience building responsive interfaces.
• Good sense for building visually appealing products.
• Some Node experience
• Experience using RESTful Web Service Architecture
• Experience working in Agile Environments
• To be considered for this role, you must have:
• A deep understanding of building complex, single-page JavaScript apps using frameworks such as Angular, React, or Vue
• Fluency with JavaScript, TypeScript, CSS and SASS

• In this Senior Front End Engineer position, you will:
• Inherit a well-architected, clean and robust codebase built with TypeScript, Angular, and SCSS/SASS with a modern interface
• Work with our design team and other engineers to make sure our application is performant and intuitive to use
• Evaluate and implement new libraries and components
• Ensure best practices are followed in the design and development of the application
• Contribute to and help manage our open source libraries

• Collaborate with team members to develop high quality software.
• Develop intuitive software that meets and exceeds the needs of the company.
• Professionally maintain all software and create updates regularly to address customer and company concerns.
• Analyze and test programs and products before formal launch. Troubleshoot coding problems quickly and efficiently.
• Designing, developing, and testing UI for mobile and web applications. Build reusable code and libraries for future use.
• Accurately translate user and business needs into functional frontend code

Responsibilities:

• Participating in design and development activities as required for specific projects allocated
• Understand the project requirement and able to implement and complete the allocated modules independently.
• Follows established development and testing procedures to ensure quality software development which meets the requirements
• Creates and maintains documentation regarding systems being developed in order to ensure long-term maintainability

Requirements:

• BTech or equivalent degree from a reputed institute
• Proven hands-on Software Development experience
• Design & Develop HTML5 games with the help of HTML5, CSS3, JavaScript, AJAX, SVG, Pixijs library across multiple platforms(Web/ MobileTablet/ TV)
• Building reliable and efficient code for game projects
• Should understand build milestone process and meet project timeline.
• Helps drive the delivery of successful, cutting edge products by working on a team with other Developers, and Designers
• Work towards optimization and best practices, increase performance of our application
• 1 to 3+ years of development experience. (Preferably Gaming)
• Good knowledge of HTML5, CSS3, JavaScript, AJAX, SVG, JSON
• Strong understanding of Object-Oriented Programming, and Design Patterns for Games and Web Applications
• Familiarity with any of the current generation JavaScript frameworks like PixieJS, CreateJs, Starling etc
• Strong attention to detail and knowledge of robust quality assurance practices
• Strong testing, debugging, and analytical skills

Technical Skill :