
· 7+ years of professional experience in front-end development.
· 5+ 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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What We’re Looking for in You:
1. Qualifications: Bachelor’s Degree in Computer Science, Information Technology, or a related field
2. Certifications: NA
3. The Experience That Sets You Apart:
● Lead the development of responsive, pixel-perfect web interfaces using HTML, CSS, and JavaScript also Shopify
● Set and maintain frontend coding standards, structure, and best practices
● Collaborate with designers to bring UI/UX concepts to life with clean, maintainable code.
● Optimize web pages for performance, SEO, and cross-browser/device compatibility.
● Guide and mentor junior developers through code reviews and technical support.
● Own project timelines, quality assurance, and delivery for all frontend initiatives
4. Your Subject Matter Expertise:
● Team leadership — 2+ years leading 10+ member teams
● Strong communicator — aligns tech and non-tech teams
● Detail-driven — ensures UI and code precision
● Collaborative — fosters teamwork and mentorship
● Organized — manages time and parallel tasks efficiently
● Service-based mindset — experience in ~200-employee setups
● Composed under pressure — delivers in fast-paced environments
● Solution-focused — navigates challenges with clarity
Frontend Developer
Responsibilities:
· Develop our new products
· Define and design common reusable components
· Enhance and maintain our existing products
· Interact with other teams, as well as with our users
· Act on user feedback
Qualifications:
· Experience as a front-end or full-stack software engineer in AWS environment
· Knowledge of modern JavaScript and its fundamentals, as well as JavaScript frameworks such as ReactJs, Redux, Bootstrap, Jest, Material-UI
· Strong understanding of web technologies like HTML5 and CSS3
· Experience with a server-side language would be an advantage. We use mostly Python/Java, but any server-side language would be an advantage.
· Knowledge of AWS API gateway, microservice architecture, serverless architecture, RESTful services
· Proven ability to learn new technologies
· Always using good software engineering practices such as code review, source control, continuous integration, and unit testing
· Ability to work in a team with other developers, with UX Designers, and with Product Management
· Ability to interact with our users and customers, with clear communication
· Problem solving skills, strong analytical skills, strong hands on experience, delivery track record of medium/large complexity of projects, TDD/BDD, awareness of CI/CD pipeline
Role
We are looking for a React Developer to join our awesome team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using React best practices. As a React Developer, you will implement a complete user interface in the form of a mobile/desktop web app & handle its integration with the back-end.
Responsibilities
- Develop user interfaces for modern rich internet applications with the latest Front End Technologies
- Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
- Writing tested and documented JavaScript, HTML and CSS
- Make design and technical decisions for React projects
- Develop application code and unit tests in the React.
- Ensuring high performance
Qualifications
- BSc/BE/BTech in Computer Science, Engineering or a related field
- 1+ years Experience with React. Good to have working knowledge of React Native, Angular, VueJS
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Good understanding of AJAX and JavaScript DOM manipulation Techniques
- Experience with RESTful services
- Experience in JavaScript build tools like grunt or gulp
- Hands on and implements complex React modules
- Able to implement automated testing platforms and unit tests
- Understanding of fundamental design principles behind a scalable application
- Proficient understanding of code versioning tools (Git)
- Critical thinker and problem-solving skills
- Team player
- Good time-management skills
- Great interpersonal and communication skills
We are looking for a Front end Engineer with at least 1 year of experience. with a fast-moving organisation based out of Mumbai, India.
Skills Required:-
- java script
- React
- React native
- Knowledge of Angular, HTML/CSS3 is a plus
Roles and Responsibilities:-
- Develop new user-facing features.
- Defining Architecture & Flow for the enterprise-level project
- Writing reusable code and libraries for future use.
- Ability to write clean code with proper comments
- Ensure the technical feasibility of UI/UX designs.
- Optimise application for maximum speed and scalability.
- Integrating API's
- Excellent Debugging Skills
- Great Problem-Solving Skills
- knowledge of best practices in javascript framework and the ability to implement it
- Helping others if they got stuck with any problem
- 5+ years of experience in software engineering
- A background in front-end web development and/or API development.
- Demonstrated competency in one or more of the following: JavaScript, TypeScript, React/Redux, AngularJS, or comparable JavaScript MVC framework.
- Demonstrated competency in one or more of the following client-side build tool: Webpack, gulp, jspm
- Have a good understanding of what good UX and UI design are.
- Experienced in client-side framework/technologies before such as: React, AngularJS, jQuery, HTML, CSS
- Experienced in using client-side build tools such as gulp, WebPack, JSPM, NodeJS, and other CLI is a plus
- Understand how to get good performance on UI implementation (time to interaction, bundling, and splitting resources)
- Some previous work portfolios would be great.
- Good knowledge of how to use source control systems like git and GitHub.
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at a massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a Front End software engineer, you will work on the ReactJS powered user interface used by Fulfil merchants to manage their back-office operations. This is mission critical software and your primary focus will be on developing user interface components and implementing them following well-known React.js workflows. You will ensure that these components and the overall application are robust and easy to maintain. In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality are important.
What You’ll Do:
- Collaborate with a small yet extraordinarily talented team of engineers to implement front-end technologies
- Develop new user-facing features using React.js and React Native
- Work closely with the Design and Product teams to translate complex technical workflows into delightful user experiences
- Define how Fulfil builds user interfaces and ensure that we’re utilizing and keeping up with modern web standards
- Continually test, measure, and iterate on the results of your work in the spirit of continuous improvement
- Write clean, reusable, and well-tested front-end code
- Help to bridge the responsibilities of the Product and Engineering teams, spending time with both on the way to launching new products
- Architect efficient and reusable front-end abstractions and systems that drive complex web applications
- Create reliable and type-safe applications with Typescript
- Build and contribute to open source projects
- Build reusable components and front-end libraries for future use
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
We’re Looking for Someone With:
- 5+ years of experience as a front end engineer
- Experience in building large-scale web applications in a fast-moving team environment
- A strong understanding of UX and UI design standards
- The perfectionist’s touch on a pragmatist’s deadline: you strive for pixel-perfection and intuitive functionality
- Strong proficiency in JavaScript (2-4 Years of experience), including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles, with experience in popular React.js workflows
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc
- Experience with popular testing frameworks, like Jest, Cypress, and Testing Library.
- The ability to bring any design to life with HTML and CSS, with cross browser compatibility and accessibility
- Smarts, humility, communication skills, and equal willingness to teach and learn
- Familiarity with RESTful and GraphQL APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in developing large client side JavaScript applications
- Familiarity with code versioning tools like GIT
- Experience with Javascript testing tools and test automation
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Demonstrated work beyond the front-end, experienced in integrating with a wide array of back-end technologies and services (e.g. experience with Python, AngularJS)
- Experience developing large client-side applications and optimizing them for performance
- You can straddle client and server development, creating APIs that drive web apps
- You understand the intricacies of timezones
- Web optimization, performance tools, and load testing
- You maintain or contribute to an open-source project
Your role and our tech stack
Reporting to the founder, you will be expected to develop, deploy and oversee the execution of the tech strategy, product road-map and operations to ensure alignment with our businesses goals as we grow and scale. You will play a key part in the organisation's success, taking the current MVP and developing it further to move the company through to early stage funding and into profit.
Quesst's is built using React.js [Frontend], Node.js [Backend], PostgreSQL [DB], Amazon EC2 [Application Hosting], Amazon S3 [Media Storage Service], and Amazon SES [Email Sending Service]. You will be responsible for implementing full-stack features and collaborate with other team members to plan each sprint. You’ll be working across the entire system architecture and be responsible for designing, implementing and maintaining restful APIs, micro-services and databases.
1. Experience and in-depth knowledge of HTML and CSS. (PRIMARY)
2. Knowledge of Principles of Responsive Web Design.
3. Experienced with JavaScript and ideally knowledge of one of these frameworks Angular, React, or Polymer.
4. Knowledge and experience integrating web apps with back-end using REST API's .
5. Knowledge of VC like Git.
Extras:
1. Principles of Web Performance Standards and PWA's.
2. Build and Automation tooling using a package like Gulp or Grunt.
3. Comfortable with the command line and usage of package managers like npm and gulp.










