Senior Frontend Engineer

Role: Sr. Frontend Developer

• Exp: 6 -9 Years
• CTC: up to 35 LPA 

What we Require

• To convert our existing web application into a micro front-end architecture. The ideal candidate should have experience in AngularJS, ReactJS, MobX, and SCSS. Exposure to socket integration, mqtt integration would be a plus.
• Identify our existing web application’s different components and modules. Separate them into independent micro front-ends.
• Develop and maintain micro front-ends using AngularJS, ReactJS, MobX and SCSS
• Implement and configure Module Federation in Webpack 5 to share components between micro front-ends.
• Optimize micro front-ends for maximum speed and scalability.

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.

• Object-oriented JavaScript,
• jQuery,
• ES6,
• React JS (Versions 16.8 & below),
• Redux (Action Type, Action Creator & Reducers),
• Middleware(Redux-Thunk, Redux-Saga),
• React Hooks,
• Axios & Fetch library,
• Managing States & Props efficiently,
• React Forms,
• Validation (Schema & Non-Schema using any third-party library or custom),
• the candidate should be aware of the production build process,
• HTML5,
• knowledge of CSS,
• Rest API integration knowledge,
• Authentication(Token Based) & Authorization with Routes

• Building, Designing, Testing, and Deploying web apps.
•  Thoroughly explore & understand the under-hood of products in the market, strengths & fault-lines of each.
• Drive from Conceptualisation to Deployment of analytics suite of products that are robust and can stand the test of time when our data size is multiplying month-on-month.
• Work closely with designers & product managers to build things that are normally regarded as holy grails in browser-based analytics applications.
• Actively participate in design and code reviews to build robust applications and prototypes.
• Interacting with team members, and customers to continuously look for better innovations for all teams across Trade Brains

• Build fluid, scalable, responsive, and consumer-centric web platforms that target users across a wide array of devices
• Collaborate closely with designers & backend developers and contribute to the full product development life-cycle from design and development to roll out
  Take ownership of work and deliver quality results consistently
• Own the delivery of multiple features in a fast-paced work environment
• Build optimized and modular components to provide performance-oriented solutions
• Work in a dynamic and collaborative culture ensuring good teamwork and communication with remote team members when needed

• 4+ Years of experience in frontend web development (1+ in ReactJS)
• Strong past experience of building, scaling and maintaining feature-rich customer-facing single-page applications
• Ability to translate designs into UI elements with accuracy and an eye for fluidity and responsiveness; strong grasp of any of CSS / sass / less
• Proven ability to implement key concepts of state management, security, and caching practices in enterprise-level web applications used at scale
• Proficient understanding of compatibility issues across different browsers and web and mobile devices and available ways to work around them
• Familiarity with the react ecosystem and popular libraries in that ecosystem
• Strong grasp over core web development concepts like HTML5, JavaScript, CSS3, general Web 2.0 techniques, and working without modern component libraries
• Experience with designing secure web applications with a strong understanding of common security vulnerabilities and best practices
• Understanding of data structures, algorithms and object-oriented programming
• Strong grasp over concepts of performance, optimization, lighthouse, etc
• Strong handle over Git, following best practices to facilitate collaboration

• Hands-on experience with supporting payments and integrating payment gateways
• Experience with progressive web apps, service workers
• Strong grasp over frontend unit and end-to-end testing frameworks

• 3+ years of experience in web development
• Minimum 2+ years’ experience in React js

Good to have

• Design and develop automation scripts when needed
• Experience in the Real Estate will be a plus

DUKAAN - Create Your Online Store in 30 Seconds
Dukaan is an app that allows offline businesses to sell their products and services online. On our app, the users can make beautiful product catalogs (catalogs) right from a smartphone and share with their customers easily on different social media apps such as Whatsapp Business, Whatsapp, Facebook, Instagram, etc. Praised by users all over India, this app has saved declining businesses by helping them transfer their shop online. The journey has just begun and we are on a mission to make India truly Digital.

Dukaan is currently powering over 5 M e-commerce stores built by Indian small businesses and growing at a crazy rate.  

We are looking for Frontend developers to join our team. 

DESCRIPTION
We are looking for a great Frontend 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 products are 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

REQUIREMENTS

• 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 (such as Flux or Redux)
• Familiarity with newer specifications of EcmaScript
• Familiarity with RESTful APIs and sockets
• 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
• Experience with PWAs and React Native is a huge plus