
React.js Developer Job Description
We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
To ensure success as a react.js developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class react.js developer should be able to design and build modern user interface components to enhance application performance.
React.js 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.
React.js 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.

About 3 Way Technologies
About
3 Way Technologies is the partner of choice for many of the world’s leading enterprises, SMEs and technology challengers. We help businesses elevate their value through custom software development, product design, QA and consultancy services.
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SimplyFI integrates Artificial Intelligence (AI) and Blockchain seamlessly into existing workflows to digitize and streamline complex processes in trade finance, import/export, and supply chain operations.
Our mission is to simplify and automate traditionally manual, paper-based systems by building secure, transparent, and intelligent platforms that empower enterprises and financial institutions worldwide.
Role Overview:
* We are looking for a talented and motivated React.js Developer with 2-3 years of hands
* on experience to join our front-end team in Mumbai. This role involves building scalable,
* user-centric web interfaces that interact with cutting-edge AI and blockchain-based
* systems.
* You’ll be part of a product team solving real-world challenges in trade finance and supply
* chain automation, contributing to platforms that are redefining how global commerce operates.
Key Responsibilities:
• Develop and maintain responsive, high-performance web applications using
React.js
• Translate UI/UX designs and wireframes into code with pixel-perfect precision
• Work closely with backend and blockchain teams to integrate APIs and services
• Implement clean, maintainable, and scalable front-end architecture
• Optimize components for maximum performance across browsers and devices
• Collaborate in Agile teams with Product Owners, Designers, and QA Engineers
• Participate in code reviews, testing, and debugging
• Stay up to date with the latest trends in front-end development, Web3, and AI
integration
Required Skills:
• 2-3 years of hands-on experience in React.js development
• Strong knowledge of JavaScript (ES6+), HTML5, and CSS3
• Experience with React Hooks, Redux, or Context API
• Proficiency in consuming and integrating RESTful APIs
• Familiarity with Git and version control workflows
• Good understanding of responsive design and cross-browser compatibility
• Strong attention to detail and debugging skills
Bonus / Preferred Skills:
• Exposure to Blockchain fundamentals (e.g., smart contracts, wallets, Web3.js)
• Basic understanding of AI APIs or AI-powered UX features
• Experience with TypeScript, Next.js, or GraphQL
• UI libraries like Material-UI, Tailwind CSS, or Ant Design
• Familiarity with test frameworks like Jest or React Testing Library
• Knowledge of security best practices in financial applications
We are looking for a highly motivated individual that can help us solve interesting and complex problems for our clients. You will be working closely with product and engineering teams based out of the USA, Europe, and India to build proof-of-concepts, validate strategic architecture decisions, and develop modern and scalable solutions. We firmly believe that your success is our success, and we are willing to take a stake in that.
About Altir
Altir is a product engineering company that builds top-notch software products for very select companies across various industries and stages of their lifecycle. We help start-ups to Fortune 500 companies nurture and transform validated ideas into successful products by amalgamating efficient business & technology strategy, development, and engineering capabilities. We are a team of entrepreneurs, engineers, product leaders, and designers who are builders and systems thinkers coming from some of the most iconic technology companies like Microsoft, Accenture, Apple, Google, and Salesforce. We exercise thorough attention to detail at every stage – from product exploration to delivery, integrating technology, automation, and our teams' expertise into the mix. We infuse our prowess from the consumer and enterprise worlds into every client's business. Our customers work with us to be their force multipliers, disrupters and to help them create unfair advantages.
Hailing from some of the world’s most innovative technology companies, we’re a team of seasoned entrepreneurs and makers. We’ve learned what it takes to build paradigm-shifting technology and companies, but we learned it the hard way. That’s why we created Altir - to be disruptive by design. By generating a suite of knowledge resources, category-defining playbooks, and reusable technology components, we’ve productized the launch and scale of transformational companies for maximum impact.
Company Link:
Requirements
*5-10 years of software engineering experience with at least 4 years of experience in react.
*Programming languages (Typescript, JavaScript, Reactjs , redux)
*Creating fluid visual interactions. Developing and implementing mobile user experience patterns.
*Developing and maintaining iOS/Android applications from the requirements to the App Store.
Unit Test (Jest, Mocha), software design patterns and data structures.
*Excellent leadership, stakeholder management and program management skills.
*Successful experience in a properly functioning agile team would be extremely advantageous.
Required
*Design and develop user interface components using React.js This includes creating reusable components and front-end libraries for future use.
*Optimize components for maximum performance across a vast array of web-capable devices and browsers.
*Redux for state management.
*React JS developers should be proficient in modern web development.
*Implement automated testing platforms and unit tests.
*Develop and maintain user interfaces using React.js.
Must have
*Strong understanding of web technologies, including HTML, CSS, and JavaScript
*Experience with code migration and refactoring
*Strong problem-solving skills and ability to troubleshoot technical issues
*Excellent communication skills and ability to work collaboratively with cross-functional teams
*Strong attention to detail and ability to deliver high-quality code
*Ability to work in a fast-paced, dynamic environment
Benefits
*Participation in profit sharing
*Parental leave
*Opportunity to travel and work with our global team
*Flexible PTO and work timings
*Premium health insurance
*Teammate recognition awards
*Company get together, off sites and events
responsibilities
- Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies
- Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
- Writing tested and documented JavaScript, HTML and CSS
- Make design and technical decisions for AngularJS projects.
- Develop application code and unit test in the AngularJS, Rest Web Services and Java technologies for the Application Development Center.
- Ensuring high performance
requirements
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Good understanding of AJAX and JavaScript Dom manipulation Techniques
- Experience with RESTful services
- Experience in JavaScript build tools like grunt or gulp
- Expert in any one of the modern JavaScript MV-VM/MVC frameworks (AngularJS, JQuery, NodeJS, GruntJS)
- Familiar with testing frameworks (Ex. Jasmine)
- Test runner framework (Ex. Karma)
- Hand on and implements complex AngularJS applications, directives, controllers, services
- Critical thinker and problem-solving skills
- Team player
- Good time-management skills
- Great interpersonal and communication skills
Benefits:
- 5 days working
- Paid Overtime
- Paid Leave
- Employee referral scheme
- Team exposure
- Short term growth
- Playing Zone
- Training sessions for all departments
As a frontend engineer on one of our game teams, you’ll be a key contributor to developing
amazing games that millions of customers around the world enjoy. We’re always looking for great engineers who want to help us build the next amazing game, or expand and improve an
established game. You’ll design and deliver new game systems, new game features, and new
ways to delight our customers and drive revenue. You should have experience in all phases of software development and be self-directed. If you are an all-around great engineer who is willing to learn and tackle hard problems, there are ways to have a huge impact. As part of a small and growing team you will have great opportunities to build systems from scratch and own them.
Responsibilities –
• Working as part of one of our Game team or our systems team.
• Regularly shipping updates to millions of customers.
• Driving the design and iteration of new features and games, making good use of internal and external feedback
• Creating measurable success, be self-directed, and prioritise your own workload
Qualifications –
• 4+ years of professional software development experiences
• Programming experience, preferably in Javascript/Java/C++.
• You should have experience with Cocos Creator, Cocos2d-x or Unity and should be willing to work across these engines. Experience with implementing platform specific solutions is a plus.
• An under the hood understanding of software systems, awareness of best practices to build
generic and performant systems are a plus.
• Strong software engineering skills, including strong fundamentals in Algorithms and Datastructures.
• Demonstrated ability to self-direct, and drive work to completion
• Strong communication skills, and the ability to work closely with a team of peers
What do we offer?
• Competitive salary, discretionary annual bonus scheme and stock allowance.
• Flexible timing and work from home days.
• Relocation allowance
• Located in the heart of vibrant Bangalore. Our office is a stones throw from everything you need.
• Beautifully designed large office space.
• Work directly with experienced founders with deep expertise in their fields
We are looking for a motivated React js developer to come join our team.
Roles & Responsibilities:
- React.js developers (about 3-5 years of experience) are involved in the interface
- component design from implementation to testing.
- Implement user interface components for JavaScript-based web and mobile applications using the React open-source library ecosystem.
- Should have proficiency in front end languages HTML, CSS, JavaScript, and JavaScript
- frameworks like REACT, Angular JS.
- Have knowledge in REACT tools such as react.js, Webpack, Enzyme, Redux, and Flux. Previous experience in user application.
- interface design is essential.
- Must have hands-on experience in payment gateway,3rd party API integration, Security encryption & decryption experience.
Skills:
- A good attitude toward work, Strong problem-solving skills
- Desire to work in a fast-paced environment along with project and time management skills
- Ability to work independently or with a group
- Portfolio is must for the profile.
- Good understanding of Javascript, CSS, HTML5, AJAX.
- Hands on with React JS.
- Understanding of responsive frameworks such as BootStrap or SemanticUI.
- Extensive knowledge of DOM scripting with native JavaScript and JS frameworks such as jQuery.
- Experience in delivering Cross-browser and cross platform compatible solutions.
- Basic knowledge of UI design.
- Excellent problem-solving and analytical abilities.
- Experience with agile development practices such as continuous integration and deployment.
- Fluency with version control platform Git.
- Minimum 1+ years of UI development experience.

JavaScript, CSS, JQuery, HTML5, React JS, Angular 4 or higher , Type Script
● Skilled at Object Oriented JavaScript and having a working knowledge of at least one of
the following MVC Frameworks (Angular, Ember, React etc.)
● In-depth understanding of the entire web development process (design, development,
and deployment)
● Understanding of common frontend design patterns for developing high performance,
user friendly and robust applications
● Understanding of layout aesthetics and appreciation for superior user experience
● Familiarity with software like Adobe Suite, Photoshop, and content management
systems
● Experience in configuration management process using tools such as Git
● Excellent verbal and written communication in English.
● Ability to work under pressure and commitment to meet customer expectations.









