
Job Summary:
We are seeking a highly skilled and hands-on UI Developer with strong expertise in React.js and JavaScript to join our front-end engineering team. The ideal candidate will have at least 5 years of experience in developing scalable, high-performance, and user-centric web applications. You will be expected to contribute immediately, owning development tasks end-to-end — from design and coding to performance tuning and deployment.
Key Responsibilities:
- Design and develop responsive, high-quality user interfaces using React.js, JavaScript, HTML5, and CSS3.
- Collaborate closely with UX designers, backend developers, and product managers to translate business requirements into technical implementations.
- Write clean, efficient, and reusable code following best practices and modern front-end standards.
- Optimize components for maximum performance and scalability across various browsers and devices.
- Participate in code reviews, ensuring adherence to coding standards and best practices.
- Troubleshoot, debug, and resolve UI-related performance or compatibility issues.
- Stay up to date with emerging front-end technologies and continuously enhance the development process.
Required Skills & Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
- 5+ years of professional experience in front-end/UI development.
- Deep hands-on experience with React.js and core JavaScript (ES6+).
- Strong understanding of HTML5, CSS3, and modern UI frameworks/libraries.
- Experience with React hooks, state management (Redux or Context API), and component-based architecture.
- Familiarity with RESTful APIs and integration of front-end applications with backend services.
- Experience with Webpack, Babel, NPM/Yarn, and modern build tools.
- Solid understanding of version control systems (Git).
- Strong debugging and performance optimization skills.
- Ability to deliver results in a fast-paced, agile environment.
Good to Have Skills:
- Experience with TypeScript, Next.js, or React Native.
- Knowledge of testing frameworks such as Jest, Mocha, or React Testing Library.
- Familiarity with CI/CD pipelines and DevOps tools.
- Understanding of UI/UX design principles and ability to collaborate effectively with designers.
- Exposure to cloud environments (AWS, Azure, or GCP).
- Experience in performance profiling and accessibility (a11y) best practices

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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ADDV HealthTech Solutions, a UK-based company, operates with a strong IT presence in Ahmedabad, empowering IT professionals and organizations with cutting-edge technologies. As a product and service-based industry, we have excelled in managing UK healthcare projects, leveraging our novel tech-led approach.
ADDV HealthTech Solutions operates as a subsidiary of the renowned UK company, ADDVantage Technologies (https://addvantage-technologies.co.uk/) delivering innovative healthcare solutions like AllDayDr, Healthya, AppLocum, PharmSmart, ADDVantage Minds, and HEALTHYA Stations. Under the visionary leadership of our Founder and CEO, Suhel Ahmed, we continue to expand our expertise and presence across the UK and the Middle East.
What are we looking for in a candidate?
● 3-5 years of experience in frontend development.
● Proficient understanding of web markup, including HTML5 and CSS3.
● Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
● Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
● Strong knowledge of JavaScript and its frameworks, such as AngularJS or React.
● Good understanding of asynchronous request handling, partial page updates, and AJAX
● Experience with responsive design and frameworks like Bootstrap.
● Proficient understanding of cross-browser compatibility issues and ways to work around them.
● Basic understanding of React.js and its core principles (optional but preferred).
● Familiarity with version control systems (e.g., Git).
● Excellent problem-solving and communication skills.
What will a candidate be doing with us?
● Develop and maintain user-facing features for web applications.
● Build reusable code and libraries for future use.
● Ensure the technical feasibility of UI/UX designs.
● Optimize applications for maximum speed and scalability.
● Collaborate with other team members and stakeholders.
What will we provide to the candidate?
● 5 days working
● Flexible working hours
● Training and Development Opportunities
● Collaborative work environment
● Working with International teams
Core responsibilities
• Collaborate with product teams to more accurately define new features
• Collaborate with UX in the building of a design system/component library
• Ensure high performance of all systems developed
• Aware of the relationship between development and business with a strong sense of ownership
• Employ the latest techniques such as agile software development
• Good knowledge of highly scalable server-side development
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Javascript/Angular
• Strong interpersonal, communication and analytical skills
• Should have the ability to express their design ideas and thoughts
Job Brief
• JavaScript and angular expertise
• Experience with libraries such as bootstrap, Ag-grid, formly, observables, and ngrx
• You enjoy working with new technologies, and are curious and energetic
• Experience working with REST APIs
• Good understanding about authentication and security
• Create and maintain various unit and integration tests
• You enjoy working in a creative and agile environment that moves fast
• Ability and interest in providing mentorship to junior members of the team
• Write high quality code and Conduct code reviews
• Being resourceful and detail-oriented, along with being an outside the box thinker!
• Experience being a great team player, who work collaborative, and brings a positive attitude
Frontend developer @ Kredmint
What we are looking for
- Bachelors in Computer Science or equivalent industry experience
- 2+ years of experience as a Frontend Engineer
- Experience with React, Javascript, and Redux. Experience with Node.js, Enzyme, and Jest is a plus
- Understanding of asynchronous javascript handling
- Previous experience in working with UI libraries.
Senior Software Engineer (Frontend)
What you will be doing:
-
Working with designers, product managers to collaboratively own the front-end layer at FalconBrick and deliver stellar end user experiences
-
Building responsive and elegant mobile and desktop web UIs
-
Test, debug and maintain the application software throughout the product lifecycle
-
Architect, develop and maintain front-end libraries
What you need
-
You love working with JavaScript and are very familiar with JavaScript design patterns and can build fairly complex UI
-
Have at least 4 years’ experience in development of responsive web/mobile applications using advanced JS and web technologies
-
And with at least 2 years of experience building frontend UI with a library or framework like ReactJS
-
You’re very comfortable in writing HTML and CSS and love designing beautiful webpages
-
You know the cost/constraints of the browser and network and are able to to improve the
performance of the product across devices.
-
Have great communication skills, strong work ethics
-
And are comfortable with agile, iterative development practices and code reviews
Preferred
-
Are familiar with and writing automation / build scripts with (Grunt/Gulp/ webpack etc)
-
Comfortable working across the full stack - Experience working with cross-functional
team with backend development using node.js/express (or similar)
-
You keep pace with the ever changing specs of cutting edge front-end technologies (e.g.
HTTP/2, WebAssembly, Service Workers)
-
Experience with leading a team doing frontend development
-
Startup Experience is a plus
What you will get:
• An opportunity to work in a fast growing a startup on a product line that’s focused offering great user experiences through amazing UX/UI design and engineering
-
A fun and casual work environment with flexible work hours
-
Competitive incentives
Job description:-
- 2.5+ year of experience in Development.
- Strong experience of Angular 2+ and above along with other technologies like HTML5, CSS, jQuery, AJAX with good knowledge of ECMA Scripts.
- Strong knowledge of JS Fundamentals.
- Design & development of Angular applications as per desired specifications, along with experience in frameworks/libraries like jQuery, Bootstrap, Typescript etc.
- Architecture design, development, testing and maintenance of Web Apps, Implementation based on Angular Application MVC Patterns.
- Own end to end product modules/features (from the requirement to going live)- Design & code review, troubleshoot & help team members on issues.
- Gather requirements by interacting directly with the end-users.
- Research on open source framework/technology required for developing the feature/application.
Description:
Looking for a great JavaScript developer who is proficient with React.js. primary focus will
be on developing user interface components and implementing them following well-known
React.js workflows with Redux.
Requirements:
Experience with web technologies (REACT, REDUX, AJAX, SCSS/LESS/CSS,
Hooks,HTML)
Excellent conceptual understanding of DOM, JavaScript, HTML/CSS and cross browser
rendering, behavior and performance. The candidate should have high level knowledge
on user experience, asset loading, browser rendering, responsive design, state
management, JavaScript asynchronous patterns, request handling, partial page updates, and REST APIs
with AJAX
Experience implementing static typing in JavaScript (Babel, Typescript)
Familiar with TDD practices. Comfortable with Jest, Jasmine, Cypress, Webdriver.io,
and other automation frameworks to develop and keep the test suite up to date.
Familiarity with front-end build/publish tools, such as npm. Grunt/Gulp.js, Webpack,
browserify.js
Proficient understanding of code versioning tools, such as GIT.
Job Title
Senior Frontend Developer (SDE-2)
Responsibilities:
- Collaborating with the UX team, product managers, back-end engineers and other technical teams to create new, delightful and scalable UI
- Taking responsibility for all front end development on a project
- Taking initiatives to build better and faster solutions to the problems of scale
- Adhering to style standards on fonts, colors and images
- Mentoring junior devs and helping them out with bugs
- Taking initiatives to improve the codebase, DX, abd performance
- Building out UI from design mockups & conducting layout adjustments based on feedback from users
- Being on production support
Requirements:
- Knowledge of and experience in advanced Javascript framework: ReactJS, AngularJS, and VueJS
- 3-5 years of overall experience
- Familiarity with common Javascript Libraries such as jQuery would be a plus
- NodeJS knowledge is a plus
- Knowledge about UI testing automation
- UI Performance: should have hands on experience of optimizing page load, rendering, and caching
- Sense for appeal & aesthetics from a usability perspective
View Less
Skills
REACT.JS, FRONT END, LEADERSHIP SKILLS
About Company: Spica Systems (https://spicasys.com )
Spica Systems is a Silicon Valley based start-up, established in 2019 and are recognized as experts in building products and providing R& DandSoftware Development services in wide range of leading-edge technologies such as LTE, 5G, Cloud Services (Public -AWS, AZURE, GCP, Private -Openstack) and Kubernetes. Ithasa highly scalable and secured 5G Packet Core Network, orchestrated by ML powered Kubernetes platform, which can be deployed in various multi cloud modealong with a test tool. Headquartered in San Jose, California, we have our R& D centre in Sector V, Salt Lake Kolkata.
- Looking for a Software developer who will work on the product's Web UI side
- Hands on and working experience with React JS
- Experience in WebUI using Javascript technology.
- Experience: 2-4 years of React development in a team environment
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Redux.
- Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
Education: Bachelors/Masters in Computer Science, IT or Mathematics or Engineering
Traits: Quick learner, open minded, willing to learn
JD for Below position-
Preferred Technical Expertise-
- Expertise in front end web application development
- Solid Understanding of Javascript, JQuery.
- Experience in HTML, CSS and Bootstrap library is required.
- Experience with Django Framework.
- Experience with source code versioning tools such as GIT, Bitbucket etc.
Secondary Skills/Good to have Skills:
- Experience in developing REST API is a plus.
- Experience in Python Programming is a plus.
- Experience in Pandas and Numpy Libraries is a plus.
- Experience with SQL is a plus.
- Experience with any cloud platform ( GCP is a plus )










