
React.js Developer
- 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 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 JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- 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)

Similar jobs
Relevant in React JS: 2 + Years
Looking for candidates from Mumbai who can go to the office in Mumbai(Malad) after Covid ends.
- Knowledge of OO JavaScript
- 7.2. 10+ years hands-on experience with web development using
- HTML5, JavaScript (React, Preact.js, Redux, Redux, Vue.js,
- CSS3, SignalR, Socket.io)
- 7.3. Experience building responsive design layouts using a formal
- framework like Bootstrap and familiarity with best practices
- (web security concepts, ensuring browser & device
- compatibility, etc.)
- 7.4. Experience in creating secure pre-compiled script libraries.
- 7.5. Familiar with development and debugging tools for cross-
- browser issues
- 7.6. Experience integrating with RESTful APIs for server-side
Job description
We are looking for an experienced HTML developer to oversee the design, coding, and implementation of projects.
In this role, you will be required to collaborate with Website Designers on the initial web design, write the code, ensure cross-platform compatibility, and provide user support.
To be successful as an HTML developer, you should have a good eye for detail and excellent knowledge of front-end technologies like HTML5, CSS3, Bootstrap.
HTML Developer Responsibilities:
Meeting with Web designers to discuss project design and layout.
Coding the entire HTML site from end to end.
Debugging code and front-end web applications.
Ensuring cross-platform compatibility.
Troubleshooting application errors.
Conducting website performance and usability tests.
Meeting publication deadlines.
Providing user support.
HTML Developer Requirements:
At least 2 years experience as an HTML Developer.
In-depth knowledge of front-end coding languages including HTML, CSS
Basic Knowledge on Javascript, Jquery
Ability to troubleshoot coding and application errors.
Knowledge of web design and user application requirements.
Ability to meet strict publication deadlines.
Good understanding of SEO principles and ensuring that the application will adhere to them
We build the best of commerce tools for brands across India. We power commerce for some of the top brands like Levis, boAt, Birkenstock, Kohler and lot more. We are looking for a rockstar Reactjs developer to join us and build the best of tools to empower the largest brands of India.
- 3-5 years of experience in front-end development with React.js.
- Strong proficiency in JavaScript (ES6+), TypeScript (preferred).
- Hands-on experience with Redux, Context API, or Zustand.
- Good understanding of RESTful APIs, GraphQL, and WebSockets.
- Experience with front-end build tools (Webpack, Babel, Vite, etc.).
- Knowledge of CSS frameworks like TailwindCSS, Bootstrap, Material UI.
- Familiarity with unit testing (Jest, Cypress, React Testing Library).
- Experience with Git, GitHub, and CI/CD pipelines.
- Ability to work in an Agile development environment.
- Strong problem-solving skills and attention to detail.
We are seeking a Frontend Engineer who can expand our product portfolio and make life easier for locals and local businesses. As part of this role, you will build experiences that help users engage and feel comfortable with the products and services we offer.
We need you to understand Angular, Vanilla JS, HTML and (S)CSS.
We need you to understand the philosophy of writing clean and modular code.
We need you to take your own stand and do what's right to find a solution.
"I'd rather listen to a possible solution rather than a 'don\'t know'" would be plausible to you.
Technologies mentioned above is what you can relate to while applying but that's just the tip of the iceberg.
If you get a score of 10 below,
We need you
You need at least 5 points to proceed to next round.
Answer the following questions by attaching a document link with the note:
-
Why choose ngRx over shared angular services? 1 point
-
How are fork join and merge map different? 1 point
-
How do we wrap html elements in our custom component? 2 points
Ex:
This is not a paragraph element
- How will you handle an error produced by RxJS operator's inner observables without failing any other observables that are yet to emit values to its subscriber, so that all the inner observables including errored ones can be piped to another RxJS operator such as fork join, concatMap etc to be handled smoothly for further operations?
Easiest thing would be to generate a pseudo code.
With above question solve this problem:
[Observables....] -> Emit values simultaneously from the array of observables at once (perform a task when an observable finishes) -> toArray -> [emitted values...] -> process each emitted value one by one -> toArray
This will give you 4 points
- How does javascript achieve its asynchronous nature being single threaded? 2 points

About Upswing
Open banking is a reality of this decade and it needs robust, customizable and secure rails to run on. Our mission is to enable consumer companies to offer differentiated financial products and empower financial institutions with greater reach through our Secure, Scalable, and easy-to-integrate API platform.
Every company today has an opportunity to extend financial services to make banking experiences lively and delightful. Our open finance-as-a-service platform is highly customizable, simple, and modular which significantly reduces the integration effort for our partners to launch financial products in weeks, not years.
At Upswing, we are a passionate and self-driven team of thinkers who aspire to build the rails to connect the legacy financial sector with financial innovators through a simple and powerful banking-as-a-service (BaaS) platform.
What will you do if you join us?
- Implement responsive web design principles to ensure that our company website renders well across multiple devices
- Design a framework for creating user apps that grow with the needs of the company
- Monitor website performance, watch for traffic drops related to site usability problems, and rectify the issues
- Review app and feature coding and plan future website upgrades with the development team
- Assist in the development of applications and features that will be put on the website and in internal functions as well
You should have
- Bachelor’s Degree in Computer Science or a related field, with 3+ years of web development experience. Development experience for Mobile screens would be a plus
- Strong knowledge of Javascript. Proficiency in Typescript & React Js would be a plus
- Strong knowledge of web development tools and programming languages
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Prior experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with more current specifications of EcmaScript
- Prior experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Familiarity with HTML / CSS
- GIT experience is a plus
- Knowledge of modern authorization mechanisms, such as JSON 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
We are hiring Frontend Developer for Yugabyte.
We are sharing the details about the role and the company for your reference. Kindly review the details and reply with your updated resume asap, if you find the opportunity interesting.
About YugabyteDB:
The high-performance distributed SQL database for global, internet-scale apps.
Yugabyte is the company behind the open source YugabyteDB, a high-performance distributed SQL database for global, internet-scale applications.
Yugabyte is a Transactional, distributed SQL database designed for resilience and scale. Its 100% open source, PostgreSQL compatible, enterprise-grade RDBMS built to run across all your cloud environments
We are a series B funded company and are catering to customers in all spheres. Our investors include Lightspeed, Dell, 8VC and Wipro. Our founders and engineers include creators of Cassandra & HBase and have an experience of running Facebook's public-cloud scale DBaaS handling 1+ Trillion Ops per day and 100+ Petabytes of data. They have scaled the data platform at Facebook from 30M to 1.4B users.
You can find more information about us at the below links
- Yugabyte Youtube Channel - Refer https://www.youtube.com/channel/UCL9BhSLRowqQ1TyBndhiCEw">here.
- Product Documentation - Refer https://docs.yugabyte.com/">here
Built using a unique combination of high-performance document store, auto sharding, per-shard distributed consensus replication and multi-shard ACID transactions (inspired by Google Spanner), YugabyteDB serves both scale-out RDBMS and internet-scale OLTP workloads with low query latency, extreme resilience against failures and global data distribution.
As a cloud native database, it can be deployed across public and private clouds as well as in Kubernetes environments with ease.
Investors: We are backed by top-tier investors including Lightspeed Venture Partners, Dell Technologies Capital, 8VC and Wipro Ventures.
Follow the links to know more about us:
- GitHub (Apache 2.0): https://github.com/yugabyte/yugabyte-db">https://github.com/yugabyte/yugabyte-db
- Docs: https://docs.yugabyte.com">https://docs.yugabyte.com
- https://www.linkedin.com/company/yugabyte/about/">https://www.linkedin.com/company/yugabyte/about/
- https://www.yugabyte.com/">https://www.yugabyte.com/
- https://www.crunchbase.com/organization/yugabyte/company_financials">https://www.crunchbase.com/organization/yugabyte/company_financials
Funding:
Yugabyte has raised a total of $103M in funding over 4 rounds. Their latest funding was raised on Mar 3, 2021 from a Series B round. Yugabyte is funded by 6 investors. Lightspeed Venture Partners and Dell Technologies Capital are the most recent investors. Yugabyte has a post-money valuation in the range of $100M to $500M as of Jun 9, 2020, according to PrivCo.
Job Description:
About this role with short note :
Years of Experience: 2-5 years
what we are looking for:
- You must know the in and out of JavaScript to design optimized and modular components that need to be used across our platform.
- You must be well versed with the React/Redux framework.
- Strong understanding of semantic HTML/HTML5, CSS/CSS3
- Experience in setting up the full UI workflow layer right from Development, Testing, Building, and Deployment.
- Good understanding of MVC architecture.
Good to have:
- Experience in frameworks like Bootstrap, Foundation, and CSS pre-processors like SASS and LESS.
- Exposure to page speed improvement techniques.
- Exposure to building responsive websites at scale.
- Prior work experience in Angular, Backbone, React
As one of the first members of the frontend development team, you will be the sole owner of the entire front end development cycle for our consumer-facing web
products. 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.
Responsibilities :
Develop all user-facing products preferably 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 the application.
Provide technical advice and assists in solving programming problems.
Enhance SEO, Analytics and overall frontend architecture for better performance
Requirements :
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object
model
Good foundation in design and a knack for designing interactions and elegant interfaces
Good to have - understanding of React.js and its core principles
Good to have - experience with popular React.js workflows (such as Flux or Redux)
Experience with data structure libraries
Familiarity with RESTful APIs
Familiarity with modern front-end build pipelines and tools
A knack for benchmarking and optimization
Familiarity with code versioning tools (such as Git)
Proficient in industry-standard best practices such as Design Patterns, Coding Standards,
Coding modularity, Prototypes, etc.
Experience in using debugging tools used for profiling/optimizing performance
Experience in debugging, tuning and optimizing UI components
A minimum of two (2) years of relevant development or engineering experience.
- Deep knowledge of Angular practices and commonly used modules based on extensive work experience
- Proficiency with JavaScript and HTML5
- Extensive knowledge of CSS3 and JS methods for providing performance visual effects and keeping the frame rate above 30fps at all times
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Creating custom, general use modules and components which extend the elements and modules of core Angular
- Ability to understand business requirements and translate them into technical requirements
- A team player, fast learner with good verbal and written communication skills
Qualifications:
- Minimum one year of experience in React, Redux
- Experience with Build systems e.g. Webpack/Grunt/Gulp
- In-depth knowledge of HTML/XHTML/HTML5
- Experience with Testing frameworks e.g. Karma/Jasmine/Protractor/Cucumber/Mocha/Jest
- Experience with interface development toolkits: e.g. Less/SASS
- Experience with web service integration protocols such as REST & GraphQL
- In-depth knowledge of Javascript e.g. ES5/ES6/Typescript
- Strong Knowledge of CSS 3
- Must be a strong team player
- Have a good understanding of design and user experience principles.
- Experience in dealing with cross-browser compatibility requirements
- Understanding of mobile development best practices (e.g. responsive design, graceful degradation, etc.)
- Ability to work independently as well as on a team and learn from colleagues
- Open-minded, flexible and willing to adapt to changing situations
- Good designing & color combination skills
- Experience with Git or other version control systems.











