
- 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

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Description :
Job Title : React Native Developer
Experience : 3 - 5 years
Location : Bangalore
Company : Tradelab
About the Role :
We are looking for a skilled React Native Developer to join our dynamic team at Tradelab. The ideal candidate will have hands-on experience in building and deploying mobile applications using React Native and a strong understanding of modern JavaScript frameworks.
Key Responsibilities :
- Develop and maintain high-quality mobile applications using React Native.
- Collaborate with designers, product managers, and backend developers to deliver seamless user experiences.
- Write clean, maintainable, and efficient code following best practices.
- Optimize application performance and troubleshoot issues across iOS and Android platforms.
- Integrate APIs and third-party libraries as needed.
- Participate in code reviews and contribute to continuous improvement.
Required Skills & Qualifications :
- 3 - 5 years of professional experience in mobile app development.
- Strong proficiency in React Native, JavaScript (ES6+), and related technologies.
- Experience with Redux, React Navigation, and other state management tools.
- Familiarity with native build tools like Xcode, Android Studio, and Gradle.
- Understanding of RESTful APIs and asynchronous programming.
- Knowledge of mobile UI/UX standards and responsive design principles.
- Experience with version control systems (e.g., Git).
Nice to Have :
- Exposure to TypeScript.
- Experience with CI/CD pipelines for mobile apps.
- Knowledge of testing frameworks like Jest or Detox.
Why Join Us ?
- Work on cutting-edge trading technology solutions.
- Collaborative and innovative work environment.
- Opportunities for professional growth and learning.
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- 5+ years of experience as a Full Stack front end developer
- Proficient understanding of web markup, including HTML5, CSS3.
- Good understanding of client-side scripting and advanced JavaScript libraries/frameworks, AngularJS
- Good understanding of asynchronous request handling, knowledge of AngularJS practices and hand on implementation of complex AngularJS applications, directives, controllers, services.
- Good understanding of AJAX and JavaScript Dom manipulation Techniques.
- Experience in JavaScript build tools like grunt or gulp.
- Proficient with the JavaScript language and its modern ES6+ syntax and features.
- Proficient with .NET framework and its core principles
- Proficient understanding of code versioning tools, such as GIT/Bitbucket.
- Critical thinker and problem-solving skills.
- Good time management skills.
- Great interpersonal and communications skills.
Reactjs Developer Responsibilities:
- Meeting with the development team to discuss user interface ideas and applications.
- 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 react.js 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.
- Documenting application changes and developing updates.
Reactjs Developer Requirements:
- Bachelor’s degree in computer science, information technology, or a similar field.
- Previous experience working as a react.js developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
FRONTEND DEVELOPER
ROLES AND RESPONSIBILITIES:
-
Determining the structure and design of web pages.
-
Ensuring user experience determines design choices.
-
Developing features to enhance the user experience.
-
Striking a balance between functional and aesthetic design.
-
Ensuring web design is optimized for smartphones.
-
Building reusable code for future use.
-
Optimizing web pages for maximum speed and scalability.
-
Utilizing a variety of markup languages to write web pages.
REQUIREMENTS:
-
1+ years of experience in related field
- Solid understanding of how the web works and its underlying communication protocols.
-
Understanding of key design principles.
-
Proficiency in HTML, CSS, JavaScript(ES5 & ES6)
-
Knowledge of JavaScript framework React.js
-
Experience with responsive and adaptive design.
-
Understanding of SEO principles.
-
Good problem-solving skills.
Sportz Interactive (SI) works with its clients and partners to revolutionize the sports fan experience across consumption points by creating best-in-class, kickass products. SI was founded in 2002 as a B2B sports content business. Through the years, it gained immense reputation for its state-of-the-art hosted solutions, digital simulators, match centers and fantasy games. Sportz Interactive has a fantastic reputation in the online sports community, having worked with clients across the globe including the likes of The International Cricket Council, STAR Sports, Yahoo!, AOL, Eurosport, Castrol, Web 18, NDTV, Nimbus, Times of India, Rediff.com and Singtel amongst others.
Sportz Interactive provides in-depth sports information and content and specializes in product development for the web, mobile and other interactive platforms.
http://www.sportzinteractive.net/">www.sportzinteractive.net
2+ years of experience on web technologies.
Primary Responsibilities:
- Coding and debugging pure JavaScript, polyglot and multi-lingual applications
- Working closely with Technical Lead/Project Manager to ensure development timelines are met
- Contribute with ideas to improve system design or streamline product delivery
- Working with challenging applications involving Real Time Data
- Working on different platforms including the usage of the Native SDKs provided on JavaScript
Required Skills:
Mandatory: Passionate about sports, Problem solving, Team player, Target & Result oriented.
Functional: HTML5, CSS3, JavaScript, Vue.js, Typescript, Stimulus JS, AJAX, Browser performance & optimization, Asynchronous requests handling and partial page updates, Browser Developer Tools, GIT and JIRA.
We do have opening with our company Crownstack Technologies for React.Js Developer. Interested candidate can share their CV.
About us
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
Job Description
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.
Requirements
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

- You should ideally have a good Experience and a strong understanding of the various stacks, libraries, frameworks & languages in front-end, especially in Angular JS.
- You will be working in small multi-disciplinary teams of design thinking, industry expert, pair programming and customer involvement to develop first project code in short sprints and iterative cycles.
- You will utilise agile development processes to build software which explores a customer first project. The quality needs to be good enough to be presented to board level demonstration.
What we offer -
- Progressive and flexible work hours that matches your personality and lifestyle.
- A multicultural and diverse team of colleagues from all over the country that speak on average 3 languages.
- The ability for you to make an impact in the emerging fields of Blockchain and decentralised technologies.
We're a contrarian and progressive culture of independent thinkers and systematic executors that are driven to build cool things that matter.
If this aligns with you, time to hop on!












