React Native Developer

Profile: React.js

Location:  Mumbai

Experience Required: 2+ Years

Employment Type: Full-time

Required Skills & Qualifications

• Experience: Minimum 2+ years of professional experience in React.js development
• Core Technologies:Strong proficiency in JavaScript (ES6+)
• Extensive experience with React.js and its ecosystem
• Solid understanding of HTML5, CSS3, and responsive design
• Experience with state management libraries (Redux, Context API)
• Knowledge of modern build tools (Webpack, Vite, etc.)
• Familiarity with version control systems (Git)
• Technical Skills:Understanding of RESTful API integration
• Experience with testing frameworks (Jest, React Testing Library)
• Knowledge of modern CSS frameworks (Bootstrap, Material-UI, Tailwind CSS)
• Familiarity with TypeScript is a plus
• Understanding of performance optimization techniques

We're Hiring | Frontend Developer Intern

Position: Frontend Developer Intern

Location: Indore (Onsite)

Type: Internship

Key Responsibilities

• Develop responsive web interfaces using React.js and JavaScript

• Build clean, reusable, and scalable UI components

• Integrate APIs and collaborate with the backend development team

• Assist in building AI-powered applications using Agentic AI concepts and workflows

• Create and optimize automations using n8n

• Debug, test, and improve application performance and user experience

Requirements

• Basic knowledge of React.js, JavaScript (ES6+), HTML5, and CSS3

• Familiarity with Git/GitHub and REST APIs

• Understanding of Agentic AI, AI tools, or LLMs is a plus

• Exposure to n8n or workflow automation platforms is preferred

• Strong problem-solving skills and eagerness to learn modern frontend technologies

What You'll Gain

• Hands-on experience building AI tool from scratch

• Be on of the member who is going to build an AI tool from scratch

• Exposure to Agentic AI, LLMs, and n8n automation workflows

• Mentorship from experienced developers on live client and product projects

• Opportunity to convert into a full-time role based on performance

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.

Position: React/Redux Frontend Engineer

Location: Pune (Initially Remote)

We are looking for a candidate with experience in building single page applications using React / Redux. You would be working on a product actively used by thousands of customers.

About the Organization:

It is one of the most exciting Bay Area Product Driven Organization in Logistics industry supporting more than 30,0000 customers.

Your responsibility will include, but not limited to:

• Transforming product requirements into clean well-written code

• Optimizing existing code for performance and reusability

Must have:

• 5+ Years of Strong knowledge of Javascript, ES6, JSX
• 2+ Years of Strong knowledge of React and Redux
• Knowledge of promises / Async / Await
• Good understanding of REST API integration and authentication
• Looking for Someone Who can start immediately / Within a month
• Typical Product Background with a Programming Thinking of solving complex problem

Educational Qualification:

Should Be a Computer Science Graduate, preferably from a Tier-1 Engineering college

Good to have:

• Advance GIT

• HTML / CSS knowledge

• Knowledge or experience working with Service Workers


Why join us?

• Very high-growth

• Passionate, collaborative, and awesome co-workers

• Free lunches

• Competitive salaries

 

Prelude

Required Skills

• 2+ years of RELEVANT EXPERIENCE in ReactJS
• Strong Computer Science fundamentals - data structures and algorithms
• Strong understanding of ReactJS Ecosystem (State management, Component-based design, Hooks, Responsive design)
• Good with CSS (converting UI designs to code)
• Writing clean and maintainable code
• Proficient understanding of APIs and wiring them   
• Strong testing, debugging, and problem-solving skills
• Familiar with modern development practices - writing clean code, git versioning, understanding development workflows

1. Working on MERN stack product development for core product
2. Exploring possibilities with proof of concepts & prototyping
3. Building the product as per specifications 
4. Developing the user-facing features using React.js
5. Designing a modern highly responsive web-based user interface 
6. Building reusable components and front-end libraries for future use
7. Translating designs and wireframes into high-quality code
8. Learn and understand user interactions
9. Optimising components for maximum performance across a vast array of web-capable devices and browsers 
10. Coordinating with various teams working on distinct layers
11. As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. 

1. Node.js & ReactJS/Next.js ( MEAN/MERN Stack)
2. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
3. Thorough understanding of React.js and its core principles
4. Prior experience with popular React.js workflows (such as Flux or Redux)
5. Familiarity with more current specifications of EcmaScript
6. Familiarity with RESTful APIs
7. Great CSS skills. Familiarity with React Styled Components, SCSS, LESS, etc.
8. Knowledge of modern authorisation mechanisms, such as JSON Web Token
9. Familiarity with modern front-end build pipelines and tools
10. Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
11. Ability to understand business requirements and translate them into technical requirements
12. A knack for benchmarking and optimisation.
13. Familiarity with code versioning tools
14. Familiarity with Test Driven Development and tools like JEST & React Testing Library is a plus.
15. Familiarity with Firebase and other backend as a services is a plus.

• Overall 3+  years of software development experience in building web-based and highly scalable applications. 

• Excellent understanding of core computer science concepts like algorithms, data structure, system design, OOP, etc. 

• Deep knowledge and development expertise in React Native/ReactJS 

• Hands-on coding experience in developing multi platform (iOS & Android) mobile applications with REST APIs.

• Experience working as a Full stack developer is a big plus.

• Experience in building single page applications or Javascript heavy front end applications in ReactJS is a big plus.

• Experience working in cloud environments with CI/CD and infrastructure automation is a big plus.

• Experience working in an agile team with software engineering practices like automated testing, test-driven-development, continuous integration, etc is a big plus. 

• Strong oral and written communication.

About UZIO Inc.

UZIO (HQ: Virginia, USA) http://www.uzio.com/">http://www.uzio.com With over 150+ partners, 1700+ employers, and 50,000+ employees relying on UZIO and 70+ health insurance carriers serving plans, UZIO provides an Integrated Benefits Administration and HCM SaaS technology platform for brokers, employers, and employees of SMBs in the United States.

Job Description

Requirements

• Must be having B. Tech. degree from Premium Institute with 4-6 years of proven experience in the relevant area.
• Proficiency in HTML5, JavaScript, and CSS, CSS preprocessors like Sass, LESS
• Hands-on experience in JavaScript frameworks. Preferably React Native / AngularJS
• Understanding of JS-based build tools like Grunt, Gulp, and Bower
• Up-to-date with the latest UI trends, techniques, and technologies
• Maintain and improve product platform, Build reusable code and libraries for future use
• Knowledge of browser compatibility issues
• Optimize application for maximum speed and scalability
• Design with mobile-first principles
• Integrate with REST apis
• Collaborate with other team members and stakeholders
• Develop technical and business requirements and always intuitive and user-centered solutions strive to deliver
• Experience working in an Agile/Scrum development process

 Responsibilities

• Collaborating with product management and engineering to define and implement innovative solutions for the product direction, visuals, and experience
• Conceptualizing original ideas that bring simplicity and user friendliness to complex design roadblocks
• Establish and promote design guidelines, best practices, and standards

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

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.

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