
About the role
We are looking for a highly skilled Front-End Engineer with strong experience in both ReactJS (Web) and React Native (Mobile) to join our product engineering team.
You will be responsible for building scalable, responsive, and high-performance applications across web and mobile platforms. The ideal candidate should have hands-on experience delivering production-grade applications with a strong focus on UI/UX, performance optimization, and reusable component architecture.
Key Responsibilities
● Develop and maintain modern web applications using **ReactJS**.
● Build and maintain cross-platform mobile applications using **React Native**.
● Design and implement reusable UI components and scalable front-end architecture.
● Collaborate closely with product managers, designers, and backend engineers to deliver high-quality product features.
● Translate UI/UX designs into responsive, pixel-perfect interfaces across devices.
● Optimize applications for performance, scalability, maintainability, and security.
● Integrate REST APIs and work closely with backend services.
● Participate in code reviews, technical discussions, and front-end best practices.
● Ensure consistent user experience across web and mobile platforms. ● Contribute to improving engineering standards, tooling, and development workflows.
Good to Have
● Experience with Expo, Next.js, or React Query.
● Familiarity with Android/iOS deployment processes.
● Experience working in FinTech, SaaS, or high-scale product startups. ● Understanding of analytics, monitoring, and crash reporting tools.

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Certa (getcerta.com) is a Silicon Valley-based tech product start-up that is automating the vendor, supplier, and other stakeholder onboarding processes (think background checks, agreements, and the works) for companies across industries and geographies. With multiple Fortune 500 and Fortune 1000 clients, at Certa's tech team, you will be working on stuff that is changing the way huge companies do business.
Must Haves:
- Experience developing enterprise-grade quality software.
- 3+ years of experience building large-scale front-end applications using React.
- 3+ years of experience using type-safe JavaScript-based languages, such as TypeScript.
- Understanding of modern frontend ecosystems, including Bundling(preferably using vite) Linting, Testing, Releasing.
- Success with mentoring mid-level & junior Engineers.
- Experience in Agile software development methodologies.
- Experience writing automated tests (e.g., Vitetest, Cypress, Jest, Testing Library).
- Experience in building, scaling & maintaining a design system from scratch.
- Experience in improving rendering as well as delivery performance for front-end applications.
- Experience in writing semantic HTML.
- Experience in building scalable, responsive, and cross-browser-compatible web applications.
- Experience in a peak-performance organization, preferably a tech startup.
- Experience working with a remote team.
- Data analysis experience, and understanding of how analytics can help with product decisions.
Bonus:
- Experience building integrations and data synchronizations with event pub/sub-models.
- Experience with WebGL
- Experience in building offline applications using Web Workers
- Open source contributions.
- Running his/her own blog.
- Experience with building 100% keyboard and screen reader-accessible applications.
- Experience setting up and customizing JavaScript tooling and building systems.
Job Description:
We are looking for a good JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities
- Developing new user-facing features using React.js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills:
- 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 (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)
You have designed, refactored, re-architected, deprecated and/or implemented a webapp from start to finish.
CSS and its pre-processors like SASS/LESS.
Excellent command over web fundamentals
Good understanding and experience in building a React app.
Exceptional coding skills in HTML5, CSS3, Javascript/ES6
Strong problem-solving and analytical skills
Familiarity with benchmarking and optimization techniques
Eye for animation and understanding of motion principles.
Experience with Agile Development, SCRUM methodologies
Experience in DevOps - AWS, S3, API Gateway, CI/CD
Native development experience in React Native (Android and iOS)
Experience in NodeJs
Additional Full-stack Skills Would Be a Huge Bonus:
Experience with Mongo DB, Redis, Firebase, NodeJs and its framework/ libraries like Express.
Experience with PostgreSQL.
Experience in NoSQL (CouchDB, Cloudant, MongoDB) datastores.
Experience in building (secure) RESTful services and MVC patterns.
Experience in coding & hosting on GitHub.
Desired Skills and Experience
CSS,JavaScript,React.js
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Type, Location,
Full Time @ Anywhere in India
Desired Experience
3+ years
Job Description
What You’ll Do
- Taking an active role in architecting the solutions we build
- Designing and implementing web applications using JavaScript and its frameworks (i.a. React, Vue, Angular), HTML5 and CSS3
- Working closely with the dispersed development team, client, and project manager in the SCRUM methodology
- Ensuring that programming practices and code quality are respected
- Supporting other engineers with your expertise when needed (knowledge sharing)
- Leading your colleagues’ growth and development
What you bring to the table
- 3+ years of experience with JavaScript (good knowledge of ES2016; newer versions and TS 3+ are a plus)
- Experience in developing web applications using Angular2+ and another modern framework
- Being comfortable HTML5 and CSS3
- Experience with version control systems, preferably Git
- Demonstrated tech leadership in a medium-sized team, and the ability to design a complex system
- Eagerness to learn and constantly improve yourself
- Being a team player focused on getting things done
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.
Designation: React JS developer
Experience: 1-4 years
Location: Chennai
Must have work experience in React.JS and front end development.
Job description
- Strong programming skills in JavaScript.
- Experience with ReactJ, frontend frameworks like bootstrap, Jquery.
- Good knowledge in HTML5, CSS, CSS3 and Object Oriented concepts
- Experience in working with RESTful APIS.
- Experience with HTTP, HTTPS and WebSockets.
- Knowledge in version control- Git, Subversion.
- Exposure to OWASP standards and guidelines.
PlanetSpark is on a mission to build the next generation of confident speakers and
creative writers. We are a global company impacting over 11 countries through live 1:1
personalized classes on Public Speaking and Creative Writing through the handpicked top
1% teachers.
We are Series A funded by some top VCs and are on a 30% month-on-month growth
curve. We have our footprint in India, the Middle East, North America, and Australia.
Come join a passionate team of over 500 young and energetic members and 400+
expert and handpicked teachers.
For more updates, please subscribe to our Instagram
handle: https://www.instagram.com/planetspark/" target="_blank">https://www.instagram.com/planetspark/
What would you be building:
You would be working on global consumer-facing products at a fast-growing startup that
would give you great exposure to all different aspects of full-stack development. You
will work on:
1) Complete website redesign: The website of the company has been completely
redesigned by collaborating with one of the country’s top designers who has
worked with brands such as Treebo, Bira 91, etc. You will get the opportunity to
create this from scratch.
2) Learning Product: Creating the world’s first and most comprehensive live learning
product to help kids become confident communicators
3) Teacher Product: Ever thought of how millions of Uber drivers are managed
completely by technology? You now have the chance to build technology that will
manage the entire lifecycle of thousands of teachers across the globe.
Your Roles and Responsibilities
As a front-end developer, you will be a part of a close-knit team of 10x engineers who
will get complete accountability of designing the front of all the products of the company.
Some of the responsibilities include:
1) Break down tech problems and determine a workable solution.
2) Integrate front-end design and/or code into the back-end system.
3) Develop incrementally and iteratively to elicit feedback over a short period of
time.
4) Write a clean, readable code that doesn’t necessarily need to be commented on.
5) Collaborate with the business and design teams
6) Continue learning and growing in emerging web technologies and methodologies
Growth Path
1) As a developer in a funded product company, you will find immense avenues of
growth, in the form of knowledge, exposure to different technology, exposure to
different products, career progression, and aggressive monetary growth based on
performance.
2) All 10x engineers will get unparalleled career growth and will out-perform their
batchmates by two times.
3) You will get complete accountability – you could proudly say that you have built
complete products on your own
Requirements
1) Work experience as a front end developer with a reputed organization
2) Good Understanding of ReactJs or Next Js
3) Intermediate understanding of relational databases, specifically SQL-based
systems, and language.
4) Basic to intermediate understanding of front-end languages and technologies,
such as JavaScript, HTML5, CSS3, etc.
5) Solid understanding of object-oriented development and design patterns.
6) Good understanding of testing concepts and practices, including unit, integration,
and use case testing.
7) A BS/MS in Computer Science, Software Engineering, or related field or
comparable experience in web application development required.
What is the role?
Xoxoday is looking for a highly skilled/ Experienced Candidates in Frontend Programming & who is comfortable in dealing with Backend tools.
Key Responsibilities
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly-responsive user interface components using React concepts.
- Writing application interface codes using JavaScript following ReactJS workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
What are we looking for?
An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.
- 6 to 9 years of strong design and development experience in building massively large-scale distributed internet systems and products.
- Previous experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Strong experience using a client side MVC framework such as NodeJS, ReactJS, Redux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Experience in responsive design, cross browser compatibility and website performance.
- Knowledge of frontend CSS frameworks like Bootstrap, Material UI and preprocessors like SASS and LESS.
- Experience with handling Services, RESTful, APIs (NodeJS preferably).
Whom will you work with?
You will be working with top-quality engineers who have built one of the best employee engagement SaaS platforms. You will be reporting to Engineering Head and working closely with the Architect and other leads.
What can you look for?
A wholesome opportunity in a fast-paced environment will enable you to juggle between concepts yet maintain the quality of content, interact, share your ideas, and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.
We are
A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls, and Compass. Xoxoday works with over 1000 global clients. We help our clients engage and motivate their employees, sales teams, channel partners, or consumers for better business results.
Way forward
We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. However, we assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.
We seek to identify top React JS talent to join us to grow with our dev team. As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive.
Required Skills:
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
Experience working on web technologies (HTML/CSS)
Good experience in React.js and its core principles
Prior experience with popular React.js workflows (such as Flux or Redux)
Please refer your friends or colleagues who might be suitable for this position.












