
Key Responsibilities
- Develop and implement user-centric features on web platforms to enhance overall experience and usability.
- Collaborate with designers, backend engineers, and product teams to deliver cohesive and scalable products.
- Solve diverse technical and integration challenges by building efficient solutions that connect with automation systems.
- Apply best practices to create reusable, testable, and maintainable components and frameworks.
- Optimize application performance and ensure responsive and adaptive design across multiple devices and browsers.
Qualifications
- Strong understanding of modern front-end development frameworks and architecture.
- Hands-on experience building interactive, high-performance web applications.
- Proficiency with:
- React, Redux, and TypeScript
- Build tools like Vite, CSS preprocessors such as Less/Sass
- Solid grasp of UI/UX principles, responsive design, and accessibility standards.
- Experience integrating front-end solutions with REST APIs or automation systems is a plus.
- Strong problem-solving skills and a collaborative mindset.

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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Why LiftOff?
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- 5+ years of experience, working on frontend technologies
- Individual contributor - responsible for the design, coding, and unit testing
- Should have good working experience in React and React Native
- Should have a good understanding of state management in frontend/UI applications
- Proficiency in Javascript / ECMAScript 6+
- Creating custom, general-use modules, and components that extend the elements and modules of React
- Good knowledge of data structures, problem-solving / algorithms
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We are a group of passionate people driven by a set of core values. We strive to make every process transparent and have flexible work timings along with great startup culture and vibe. There are no job designations because its a flat hierarchy.
Job Title: Mid-Level Frontend Developer (React/TypeScript)
Job Description: We are looking for a Mid-Level Front End Developer with 2-3 years of experience in React and TypeScript to join our team. The ideal candidate should have a strong understanding of React and TypeScript, and be able to write high-quality, maintainable code. They should also be familiar with module CSS, have experience working with component libraries and state management frameworks, and have a passion for creating beautiful and intuitive user interfaces.
Responsibilities:
● Develop high-quality, scalable, and maintainable code using React and TypeScript
● Collaborate with cross-functional teams to design and implement new features
● Participate in code reviews and contribute to code quality improvement initiatives
● Use our in-house component library and Storybook to develop reusable components
● Work with Recoil.js for state management and Context API for in-house libraries
● Write clean, efficient, and well-documented code that follows best practices
● Ensure code quality and maintainability through automated testing, linting, and code analysis
● Stay up-to-date with the latest trends and technologies in front-end development
Requirements:
● 2-3 years of experience in developing front-end applications using React and TypeScript
● Strong understanding of HTML, CSS, and JavaScript
● Familiarity with module CSS and component libraries
● Experience with state management frameworks like Recoil.js and Context API
● Strong understanding of code quality and best practices
● Excellent problem-solving and analytical skills
● Good communication and teamwork skills
● Bachelor’s degree in Computer Science or a related field is preferred
What You Will Be Doing:
- Create highly responsive B2C web-app using a wide range of open source frontend and backend technology.
- Create single page applications using a wide range of javascript & cutting edge libraries/frameworks.
- Responsible for the full lifecycle of a project, including development, unit testing, system testing and change management.
- Research technical issues and provides recommendations to enhance JavaScript products.
- Manage/Lead a team of 10+ javascript fullstack developers to handle a wide range of projects across different products.
- Code reviews, Overall project estimations, Estimation reviews, Project planning.
- Interact with stakeholders for the development requirements gathering.
- Layout a technical career growth plan for the team members.
- Working with multiple projects.
What we are looking for:
- Bachelor’s degree in Computer Science or equivalent preferably from IIT,NIT & other premier institutes.
- Rockstar Javascript developer, who appreciates the intricacies of JS as well as passionate to follow new trends in JS.
- Experience with product companies.
- 9-12 yrs of software development on advanced JavaScript stack (Native Javascript, Asynchronous Request Handling, AJAX, HTML5, CSS3, etc).
- 2-4 yrs of experience in leading and mentoring a team.
- In-depth knowledge in ReactJS & NodeJS
- Proficiency in any other modern web frameworks will be a plus.
- A solid knowledge of advanced data structures & algorithms.
- Proficient in Computer Science fundamentals & object-oriented design.
- Solid understanding of cross-browser compatibility issues and ways to tackle those.
- Must possess a track record of building Single Page responsive UI.
- Experience with Databases such as NoSQL and any RDBMS will be a plus.
- Experience with transport protocols such as TCP, HTTP & WebSocket.
- Expressing and appreciating design patterns is a real addition.
- Critical of coding practices and development methodologies.
.
This person MUST have:
- BE Computer Science, MCA or equivalent
- Extreme CSS skills
- Experience with ReactJS or NextJS is a MUST
- Strong communication skills
- A strong passion for writing simple, clean and efficient code.
- Sound knowledge of clean code, no unused code, optimized code and more. - Always starting with a document and then implementing in a systematic and organized manner
- Past experience as a frontend developer building modern JavaScript-based web applications - Excellent verbal and written communication, teamwork, decision making and influencing skills.
Experience:
- Min 3 year experience
- Not more than 15 year experience.
- Startup experience is a must.
Location
- Remotely, anywhere in India
Timings:
- 40 hours a week but with 4 hours a day overlapping with client timezone. Typically clients are in California PST Timezone.
Position:
- Full time/Direct
- We have great benefits such as PF, medical insurance, 12 annual company holidays, 12 PTO leaves per year, annual increments, Diwali bonus, spot bonuses and other incentives etc.
- We dont believe in locking in people with large notice periods. You will stay here because you love the company. We have only a 15 days notice period.
- Web-based portal development for end to end process management
- Work with the real-time feedback from users to make the product better
- Discover, design, develop, deploy, debug. Repeat! In highly agile environment.
We are looking for a senior React.js developer who can guide the current team and also work on our project. The requirement could be for 3-4 months or at max 6 months. Hence a full-time remote consultant is preferred with about 4-5 years of experience in React.
This position is for a ReactJS developer. Since we are a start-up this position will have a lot of exposure to other verticals such as product management as well. There is no limit to learning for a person who is willing to take responsibility.
We do have opening with our company Crownstack Technologies for React.Js Developer. Interested candidate can share their CV.
About us
Crownstack is a premium organisation that specializes in providing innovative digital technology solutions to various enterprises including startups, small and medium-sized businesses and Fortune 500 companies across the globe. Our services include, but are not limited to, UI design, mobile app and web development, Cloud computing, data analytics, and Dev Ops. We take pride in our ingenious, meticulous, and skilled workforce who aim to deliver sustainable and cutting-edge business and technology solutions to all our clients. ★ 100+ Successful Apps Delivered | ★ Enterprise and Startup Clients | ★ Scalable Products | ★ MEAN Stack | ★ Python, pHp, NodeJs | ★ Agile Development | ★ Best UI/UX Award
Job Description
Crownstack is looking for ReactJs Developers to join our team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using ReactJs best practices. As a React Developer, you will implement a complete user interface across our mobile and desktop web interfaces.
Requirements
Job Location: Gurgaon/Noida
Experience: 2+ years
Roles and Responsibilities
- Develop user interfaces with the latest frontend technologies
- Research, analyze, and develop product features of increasingly complex nature
- Code tested and documented JavaScript, HTML, PUG and CSS
- Make design and technical decisions for ReactJs projects.
- Develop application code and unit testing in the ReactJs with REST APIs
- Ensure high performance of all systems developed
Skills and Qualifications
- 2+ years experience with ReactJs
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Experienced in Typescript is a plus
- Familiarity with testing frameworks (Ex. Enzyme)
- Experience in building highly reusable and decoupled components
- Experience in State management Libraries like Redux, mobx
- Critical thinking and problem-solving skills
- Good time-management skills
- Great interpersonal and communication skills
Technical Skills
- 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 back-end
- Use markup languages like HTML to create user-friendly web pages
- Design mobile-based features
- Collaborate with back-end developers and web designers to improve usability
- Maintain and improve website
- Develop new user-facing features
- Build reusable code and libraries for future use
- Optimize applications for maximum speed
- Get feedback from, and build solutions for, users and customers
- Write functional requirement documents and guides
- Create quality mockups and prototypes
Preferred
- Proven work experience of 2+ years as a Front-end developer
- 1+ years experience of working in ReactJS
- Hands on experience with markup languages, including HTML5, CSS3
- Experience with JavaScript, CSS and jQuery
- Good understanding of asynchronous request handling, partial page updates, and AJAX
- Familiarity with browser testing and debugging
- In-depth understanding of the entire web development process (design, development and deployment)
- Understanding of layout aesthetics
- Knowledge of SEO principles
- Familiarity with software like Adobe Suite, Photoshop and content management systems
• Javascript, Angular 2.0, React, React Native, Angular Ionic (optional), JQuery, MYSQL,
MongoDB, Firebase.
• Comfortable with REST API development using Java or python.
• Exposure to Artificial Intelligence / Machine Learning concepts will be a plus.










