UI/UX Developer

About One Impression

One Impression is one of the world’s largest influencer marketing platforms, working with 300+ global brands like Unilever, Nestle, and Amazon to connect with a diverse creator network. Our platform empowers brands and creators to collaborate seamlessly and scale their reach. To capture a significant share of global media ad spend, One Impression is quickly becoming the industry’s go-to influencer marketing platform.

About the Role

We are looking for a Frontend Engineer (SDE II) who is experienced in both React.js for Web and React Native for Mobile Apps. You will be responsible for architecting, implementing, and optimizing web and mobile applications while collaborating closely with Product, Design, and Backend teams.

This role is perfect for someone who enjoys working across platforms, building scalable systems, and enhancing the developer experience.

Key Responsibilities

• Architect and develop frontend solutions for both Web (React.js) and Mobile Apps (React Native).
• Build and optimize config-driven systems, reusable components, and common libraries.
• Work closely with Product Managers, Designers, and Backend Engineers to create seamless user experiences across platforms.
• Own and drive React Native-based mobile applications, ensuring modular, scalable, and performant code.
• Optimize web and mobile performance for speed, responsiveness, and efficiency.
• Set up and manage CI/CD pipelines for both web (Docker, Vercel) and mobile apps (Fastlane, App Store/Play Store).
• Implement and maintain state management using Redux, Redux Saga, Recoil, or MobX.
• Work with mobile-specific integrations, such as Firebase Push Notifications, Deep Linking, and Native Modules.
• Ensure cross-platform consistency by handling browser compatibility (web) and device compatibility (mobile).
• Write clean, maintainable, and reusable code, following best practices and design patterns.
• Debug and fix issues rapidly, ensuring a seamless Web & Mobile experience.
• Stay up-to-date with the latest trends and contribute to open-source projects, tech talks, and internal knowledge sharing.

Requirements

• 3-5 years of experience in frontend development, working with both React.js (Web) and React Native (Mobile).
• Strong expertise in JavaScript (ES6+), React.js, and React Native.
• Experience with bundlers like Webpack, Rollup, and Metro for React Native.
• Deep understanding of mobile CI/CD (Fastlane, App Store, Play Store) and web CI/CD (Docker, Vercel, Jenkins, GitHub Actions).
• Strong grasp of Web & Mobile performance optimization techniques.
• Experience with Redux, Redux Saga, MobX, or Recoil for state management.
• Good understanding of mobile UI/UX principles, animations (Reanimated, Gesture Handler), and responsive design.
• Basic familiarity with native iOS/Android development (Swift/Kotlin is a plus).
• Experience with Unit Testing (Jest, React Native Testing Library, Detox, Cypress, Appium, or Espresso).
• Strong debugging skills using Chrome DevTools (Web) and Flipper, Xcode, Android Studio (Mobile).
• Ability to work independently, take ownership of projects, and mentor junior engineers.
• Open to feedback and collaborative in working towards the best user experience.

Why Join One Impression?

- Be a part of one of the largest influencer marketing platforms globally, working with top brands and influencers.

- Opportunity to lead and shape a fast-growing marketplace product.

- Competitive salary and benefits package.

- A collaborative and innovative work culture in a rapidly scaling company.

Job Description:

• Should be able to develop information systems by designing, developing and installing software solution
• Ability to prioritize well, communicate clearly, and should to deliver in the stipulated timelines
• Strong analytic capability to implement based on the agreed design
• Stay on the leading edge of development practices
• Passionate about great technologies, especially open source
• Make informed decisions quickly and taking ownership of services and applications at scale
• Work collaboratively with others to achieve goals

Technical Skills

• Fluent with web technologies and proficient in HTML 5 with Angular/React JS Frameworks
• Hands on Experience in .NET MVC, ASP.NET and developing of WEB API’s
• Hands on experiece in Angular JS/React JS. Must have used extensively and created custom components in angular js
• Extremely hands on with React JS/angular 2+ framework and must have worked on projects involving angular and must be aware of features that angular has to offer and how it can be used in the projects
• Must have used Typescript extensively and followed best practices
• 4+ years professional experience in professional web development and experience in using web frameworks
• Experience coding, unit testing and documenting
• Experience working in an agile environment
• Experience building complex web systems that have been successfully delivered to customers
• Experience in communicating with users, other technical teams and management to collect requirements, identify tasks, provide estimates and meet production deadlines

Key Skills:

ReactJS/ Angular 8 , NGRX, RXJS , JQUERY , BOOTSTRAP 4, LESS , SASS, Javascript, Typescript

• Work with other developers to ensure that the website is functional and visually appealing.
• Liaise with the client to gauge their needs and expectations.
• Plan the layout of the website.
• Ensure that the website is optimized for various devices.
• Use analytics to test client enjoyment.

• Proficiency in HTML, JavaScript, jQuery, and CSS.
• Knowledge of Adobe Illustrator.
• Good interpersonal skills.
• Understanding of key design principles.
• Good problem-solving skills.

• Strong proficiency in JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, and Babel
• Complete understanding of ReactJS and its main fundamentals like JSX, Virtual DOM, component lifecycle, etc.
• Preceding experience with ReactJS workflows like Flux, Redux, Create React App, data structure libraries
• Understanding of RESTful APIs/GraphQL, HTML/CSS, ES6 (variables and scoping, array methods), code versioning tools like GIT, SVN, etc., popular frontend development tools, CI/CD tools, DevOps, performance testing frameworks like Mocha, Node + NPM
• Preferred degree in Computer Science, Information Technology or similar

•  6+ years of web UI development experience including 4+ years of deep, hands on experience in building robust, highly reusable and responsive web applications using HTML, CSS3, SVG, React, Redux, Thunk ecosystem
• Great problem-solving skills with solid data structures and algorithms knowledge
• Strong ability to translate the design/wireframes into reusable micro components
• Experience of leading, coaching and mentoring junior developers with good delegation and time-management skills
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles and has extensively worked with Redux, Thunk, Axios etc
• Knowledge of modern authorization mechanisms, such as JSON Web Token, Oauth2 etc
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• A knack for perfection, benchmarking and optimization
• Writing and maintaining batch jobs to streamline processes (Shell, Perl etc).
• Strong understanding of Agile and Lean software development processes and practices
• Worked with WebSocket, Push notifications etc
• Experience working with local-storage, cookies etc
• Proficient understanding of CORS issues and ways to work with such issues.
• Proficient understanding of social network APIs.
• Experience with data structure libraries (e.g., Immutable.js)
• Inclined to take ownership of tasks and to ship highly polished products with excellent attention to detail.
• Strong verbal and written communication skills in English.
• BE/BTech in Computer Science or a related field or equivalent practical experience

Responsibilities:

• Responsible for development of new highly-responsive, web-based user interface
• Develop a flexible and well-structured front-end architecture, along with the APIs to support it 3.
• Building reusable components and front-end libraries for future use
• Translating designs and wire frames into high quality code
• Construct visualisations that are able to depict vast amounts of data
• Work with product team and graphic designers
• Learn and understand user interactions

Requirements:

• Deep knowledge of web standards
• Deep knowledge of JavaScript concepts and fundamentals
• Strong understanding of ReactJs. development, and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Experience of working with code versioning tools (such as Git, SVN)
• Familiarity with RESTful APIs
• Familiar with HTML, CSS and SCSS development
• Knowledge of bundlers such as Gulp/Web pack, ES6, Node etc..
• B.Tech from Tier 1 college.
• 3+ yrs of experience with front end technologies HTML and JavaScript
• 1+ yrs of Project experience with react