
Desired Skills: React.js, JavaScript, Redux, RESTful APIs, TypeScript
Job Summary:
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of EcmaScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JWT Web Token
- Familiarity with modern front-end build pipelines and tools
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
- Familiarity with any ReactJS testing framework is plus

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Job Title: Senior Frontend Developer (Angular) – L4
Location: Mumbai
Experience: 7–12 Years
Role Overview
We are seeking an experienced Angular Developer (L4 level) with strong expertise in modern frontend technologies to build scalable, high-performance web applications. The ideal candidate will have deep experience in Angular, TypeScript, RxJs, ngRx, and a strong focus on unit testing and code quality.
Key Responsibilities
- Develop and maintain complex web applications using Angular (latest versions)
- Write clean, scalable, and maintainable code using TypeScript
- Implement reactive programming patterns using RxJs
- Manage application state effectively using ngRx (Store, Effects, Reducers)
- Design and implement reusable, performant UI components
- Ensure high code quality through unit testing (Jasmine/Karma or similar)
- Collaborate with backend teams, UX designers, and product stakeholders
- Optimize applications for maximum performance and scalability
- Participate in code reviews, architecture discussions, and technical decision-making
- Troubleshoot and debug complex application issues
Required Skills
- Strong experience with Angular (v10 or above preferred)
- Proficiency in TypeScript, JavaScript (ES6+)
- Hands-on expertise in RxJs (Observables, Operators, Subjects)
- Solid understanding of ngRx architecture and state management concepts
- Experience in Unit Testing frameworks (Jasmine, Karma, Jest, etc.)
- Knowledge of REST APIs and integration
- Familiarity with HTML5, CSS3, SCSS, and responsive design
- Understanding of frontend performance optimization techniques
- Experience with Git/version control systems
Preferred Qualifications
- Experience with CI/CD pipelines
- Exposure to micro-frontend architecture
- Knowledge of Agile/Scrum methodologies
- Familiarity with AWS/Azure or cloud-based deployments
- Strong problem-solving and analytical skills
- Behavioral Competencies
- Strong communication and collaboration skills
- Ability to mentor junior developers
- Ownership mindset and attention to detail
- Adaptability in a fast-paced environment
Seniority Level
L4 (Senior Individual Contributor)
Expected to drive modules independently and influence technical decisions
Rejolut is one of the award-winning fastest-growing emerging tech company which is working on leading technology like Blockchain, ML & AI, Complex mobile & web apps, IoT, etc.
The ideal candidate will be responsible for developing a highly scalable and secure code.
Responsibilities:-
-Able to take the Extreme Ownership of modules/product/projects
-Able to learn & implement new technology/framework/library at God Speed
-Able to come with an optimal solution for the business problem
-Can handle calls with the client & customer to know their feedback
-Writing clean code & able to dig into other's code or open-source code.
-Cooperating with the back-end developer in the process of building the RESTful API
-Ensuring high performance on mobile and desktop
Desired Candidate Profile:-
-Good problem-solving skills is a must
-Must be familiar with Angular latest version and above
-Strong in Core web fundamentals: HTML, JavaScript, and CSS
-Must be experienced in web development & dynamic websites
-Familiar with various design and architectural patterns
-Experience using JavaScript building tools like Gulp or Grunt.
-Knowledge of JavaScript MV-VM/MVC frameworks including AngluarJS.
-Strong oral and written skills
-Creating custom, general use modules, and components which extend the elements and modules of core AngularJS
-Ability to self-learn
How we are different
-We are a young and dynamic team who are obsessed with solving the business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to the business problem rather than technology
Why join us
-We provide a huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loyalty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry
Strong hands-on experience with ReactJS, Redux, TypeScript, HTML, Bootstrap, Material UI, CSS3/SCSS, Webpack, NPM, NVM, Visual Studio Code
Knowledge/Experience on Restful APIs integration.
Unit testing with Jasmine or an equivalent framework
Experience or Knowledge in developing complex reusable component libraries such as complex grids, spreadsheet components etc.,
Strong in UI/UX standards implementation
Understanding of browser fundamentals and Page Optimizations
Experience working with Git and Azure
Job Description :
We are looking for software engineer to work on UI development using technologies like ReactJS, Typescript.Who will be responsible for new development, coding fixes for customer reported issues and also producing UI test case automation for the functionality you develop. We are looking for candidates with strong diagnostic skills using industry standard tools and techniques, strong JavaScript skills, and a background in UI automation.
Design and develop new features and functionality with rich UI content for Digital Business Automation products.
Demonstrate hands on involvement in coding and development.
Mentor and guide junior developers in the team towards understanding the technology, the industry play and the customer story
Technical Requirements :
4-8 years- experience developing with ReactJS and 1+ year experience in Typescript
Strong Fundamental JavaScript skills (ES5 and ES6).
Prior experience in building booking portals is a plus
. Prior experience working on e-commerce websites would be an advantage.
Strong Fundamental CSS skills.
Development team management and manage release.
Resolve and help the team to understand task requirements and provide best optimize solutions
Delivery management
Thorough understanding of React.js and its core principles
React combined with Flux, Redux experience is preferred.
Experience with data structure libraries
Knowledgeable in cross-browser compatibility issues.
Understands modern web standards and modular patterns.
Experience developing component-driven UIs.
Fluency in best practices for HTML5, CSS and Javascript framework libraries.
Great communication, solid collaboration skills, with strong teamwork ethic.
Experience with data driven dashboards a plus.
Experience developing responsive, single page, event driven web applications.
Self-driven and capable of managing multiple priorities under pressure and ambiguity.
Ability to work effectively in a fast-paced environment.
Keen eye for usability, creating intuitive visually appealing experiences.
Strong grasp of DOM structure and layout techniques.
Experience with CSS preprocessors (Sass or Less).
Experience developing implementing CSS animations driven by window events and user interactions.
Good grasp of cross-browser compatibility issues.
Knowledgeable in performance optimization techniques.
Familiar with NPM dependency package management.
Familiarity with RESTful APIs
Proficient with GIT source control.
Comfortable with agile / scrum development methodology.
A sense of pride in building clean UIs that users enjoy interacting with and engineers enjoy maintaining.
Required skills :
- React Js, Typescript, Next js, CSS, Material UI, Restful API's, Git
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.
.
If you are interested in creating a user-friendly environment by writing code and moving forward in your
career, then this job is for you.
Building highly optimised reusable components for maximum performance across a vast array of devices.
Translating designs and wireframes into high quality code.
Troubleshoot and debug to optimize performance.
Support the entire application lifecycle (concept, design, test, release and support).
Write automated tests to ensure the product is of the highest quality.
Experience with Continuous Integration.
Ability to work independently in a fast-paced environment.
Required Skills
Minimum 2 years working experience on Front-end technologies like React, Webpack/Rollup, CSS, Node.js,
Object oriented JS, CSS in JS, TDD etc.
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript Object Model.
Thorough understanding of React Js and its core principles.
Experience with popular React Js workflows (such as Redux)
Experience with data structure libraries (e.g., Immutable.js)
Knowledge of Isomorphic React, Server Side Rendering, Chunk Splitting etc.
Familiarity with RESTful APIs to connect Mobile applications to back-end services
Familiarity with modern front-end build pipelines and tools. Experience with common front-end
development tools such as Babel, Webpack, npm etc
- Developing application codes and unit tests in Angular, Java Technologies, and Rest Web Services.
- Bridging the gap between graphic design and technical implementation
- Building reusable code and libraries for future use
- Optimize application for maximum speed and scalability
- Collaborate with back-end developers for coding, building RESTful APIs and troubleshooting
- Ensure high-quality graphic standards and brand consistency
- Experience in CSS, HTML, Angular and writing cross-browser compatible code
- Basic understanding of client-side scripting and JavaScript frameworks, including jQuery
- Experience working with code versioning tools, such as Git, Mercurial or SVN
- Familiarity with browser testing and debugging
- Good understanding of SEO principles and best practices
- Ability to work independently with minimal supervision and comfortable working in a fast-paced environment
As the lead for the frontend development team at Mosaic, you will be the sole owner of the
entire FE development cycle for our consumer facing web products in ReactJS. Also, you will
be responsible for shaping up the entire system for scale and collaborating intensively with the
backend and design teams to create the best consumer experiences. You would also need to
control the mobile app development lifecycle on ReactNative.
Responsibilities
- Overlook development of all user-facing products in React
- Build reusable components and front-end libraries for future use
- Translate designs and wireframes into high quality code
- Optimize components for maximum performance across a vast array of web-capable
devices and browsers
- Focus on code maintainability and performance of application
- Provide technical advice and assists in solving programming problems
- Use Server Side Rendering when applicable
- Enhance SEO, Analytics and overall frontend architecture for better performance
Requirements
- 4+ years of experience building frontend for consumer facing products
- 2+ years on ReactJS for consumer facing products
- 1+ years of Team Lead/Management experience
- Thorough understanding of architecting the frontend system with Server Side Rendering
- Good foundation in design and a knack for designing interactions and elegant interfaces
- Understands app development cycle
- Experience with NodeJS for Server Side Rendering/coordinating with the backend team
for API requirements
- Must come up with caching solutions where required to speed up the website load speed
and improve customer experience









