
Founding engineer for a stealth startup building social media application for parents. Full stack developers with a spike on front end (specifically React Native) preferred. Immediate hiring need. Please specify notice period.

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MUST-HAVES:
- 5+ years of professional experience in web development.
- Strong proficiency in React.js and the Next.js framework.
- Solid understanding of JavaScript (ES6+), HTML5, Tailwind and TypeScript.
- Experience with server-side rendering (SSR) and static site generation (SSG).
- Familiarity with state management libraries (e.g., Redux, Context API).
- Proficient with version control systems like Git.
- Experience with modern build tools and package managers (e.g., Webpack, Babel, NPM/Yarn).
- Familiarity with API integration (REST, GraphQL).
- Strong understanding of web performance optimization techniques.
- Knowledge of testing frameworks (e.g., Playwright, Jest, Cypress).
- Ability to work in an Agile environment, collaborate with cross-functional teams, and deliver high-quality code under tight deadlines.
SKILLS: REACT, REACT NATIVE, PLATFORM INTEGRATION, JAVASCRIPT
Notice Period: 0-15 Days only
Additional Guidelines:
Interview process: - 2 Technical round + 1 Client round
3 days in office, Hybrid model.
JOB DESCRIPTION:
We are seeking a highly skilled Senior Web Developer with deep expertise in React and Next.js to join our growing team. The ideal candidate will have extensive experience in building high-quality, scalable web applications and will take ownership of both frontend development and architecture. As a Senior Developer, you will collaborate closely with product managers, designers, and other developers to deliver robust and performant solutions. Your ability to solve complex problems, optimize web performance, and mentor junior developers will be key to success in this role.
KEY RESPONSIBILITIES:
- Design, develop, and maintain web applications using React and Next.js.
- Architect and optimize web pages for speed and scalability.
- Build reusable components and front-end libraries for future use.
- Implement server-side rendering and static site generation using Next.js.
- Collaborate with the backend team to integrate APIs and ensure seamless front-end and back-end communication.
- Ensure the technical feasibility of UI/UX designs and implement pixel-perfect user interfaces.
- Work with product teams to build features that improve user engagement and satisfaction.
- Troubleshoot, debug, and upgrade existing systems.
- Provide technical leadership and mentorship to junior developers.
- Stay up-to-date with the latest web development trends, frameworks, and tools.
REQUIREMENTS:
- 5+ years of professional experience in web development.
- Strong proficiency in React.js and the Next.js framework.
- Solid understanding of JavaScript (ES6+), HTML5, Tailwind and TypeScript.
- Experience with server-side rendering (SSR)and static site generation (SSG).
- Familiarity with state management libraries (e.g., Redux, Context API).
- Proficient with version control systems like Git.
- Experience with modern build tools and package managers (e.g., Webpack, Babel, NPM/Yarn).
- Familiarity with API integration (REST, GraphQL).
- Strong understanding of web performance optimization techniques.
- Knowledge of testing frameworks (e.g., Playwright, Jest, Cypress).
- Ability to work in an Agile environment, collaborate with cross-functional teams, and deliver high-quality code under tight deadlines.
PREFERRED QUALIFICATIONS:
- Experience with Next.js API routes and serverless functions.
- Familiarity with cloud platforms (e.g., AWS, Vercel) and CI/CD pipelines.
- Experience with modern CSS frameworks (e.g., Tailwind, Styled Components).
- Knowledge of SEO best practices for React and Next.js applications.
- Contributions to open-source projects or a portfolio of personal projects.
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.
Duration: 3 Months
Type: Hybrid(Gurgaon); Paid
Joining: Immediate
Who's a fit:
- Experience with React Native and ReactJS
- Excellent problem-solving and logical thinking
- Completed a degree in Computer Science, Engineering, or related field
- Projects to showcase your skills
About
Our client is a platform of digital-first health clinics owned and operated under one house, with each of them working together toward one mission: To help Indians lead a more fulfilling life surrounded by wellness and grace.
The business is creating a family of purposeful health platforms with personalized solutions for a particular problem in a niche segment. Each platform provides the essentials to enable an individual segment of people to lead a graceful life full of purpose and well being.
Role
As the senior member of the frontend development team at Mosaic, you will be responsible for setting best practices and making sure that the others adhere to them. Also, you will be responsible for shaping up the entire system for scale and collaborating intensively with the backend and design teams to create the best consumer experiences.
Responsibilities
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- Develop all user-facing products in React
-
- Build reusable components and front-end libraries for future use
-
- Translate designs and wireframes into high-quality code
-
- Optimize components for maximum performance across a vast array of web-capable
devices and browsers
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- Focus on code maintainability and performance of the application.
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- Provide technical advice and assist in solving programming problems.
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- Enhance SEO, Analytics, and overall frontend architecture for better performance
Requirements
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- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
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- Good foundation in design and a knack for designing interactions and elegant interfaces
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- Thorough understanding of React.js and its core principles
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- Good to have experience with popular React.js workflows (such as Flux or Redux)
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- Experience with data structure libraries
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- Familiarity with RESTful APIs
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- Familiarity with modern front-end build pipelines and tools
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- A knack for benchmarking and optimization
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- Familiarity with code versioning tools (such as Git)
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- Proficient in industry standard best practices such as Design Patterns, Coding Standards,
Coding modularity, Prototypes etc.
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- Experience in using debugging tools used for profiling/optimizing performance
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- Experience in debugging, tuning and optimizing UI components
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- Bachelor’s degree (B.A.) in Computer Science, MIS or related degree and a minimum of
two (2) years of relevant development or engineering experience.
- Collaborate with engineering, design and product teams to build and ship new features.
- Seeing through a project from conception to finished product using Agile methodologies.
- Maintain and improve web applications. Optimize applications for maximum speed
- Design mobile-based features
- Self-contribution & able to manage and execute work through team members.
- Developing features to enhance the user experience.
- Create quality mockups and prototypes
- Translate application storyboards and use cases into functional applications.
- Create proof of concepts to demonstrate feasibility of proposed solution
- Continuously discover, evaluate and learn new technologies to stay at the forefront of technology innovation
- Write good quality, modular, reusable, well documented, unit-tested code.
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
Build pixel-perfect, buttery smooth UIs across both mobile platforms.
Leverage native APIs for deep integrations with both platforms.
Diagnose and fix bugs and performance bottlenecks for performance that feels native.
Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
Maintain code and write automated tests to ensure the product is of the highest quality.
Transition existing React web apps to React Native.
Skills
Firm grasp of the JavaScript, TypeScript, ClojureScript language and its nuances, including ES6+ syntax Knowledge of functional or object-oriented programming
Ability to write well-documented, clean Javascript code
Rock-solid at working with third-party dependencies and debugging dependency conflicts
Familiarity with native build tools, like XCode, Gradle Android Studio, IntelliJ
Understanding of REST APIs, the document request model, and offline storage
Experience with automated testing suites, like Jest or Mocha
● Bachelor’s degree in Computer Science or equivalent preferably from IIT, NIT & other
premier institutes.
● Rockstar Javascript developer, who appreciates the intricacies of JS as well as passionate
to follow new trends in JS.
● Experience with product companies.
● 3-7 yrs software development on advanced JavaScript stack (Native Javascript,
Asynchronous Request Handling, AJAX, HTML5, CSS3, etc)
● In-depth knowledge in React Native.
● Proficiency in NodeJs will be a plus.
● Proficiency in any other modern web frameworks will be a plus.
● A solid knowledge of advanced data structures & algorithms.
● Proficient in Computer Science fundamentals & object-oriented design.
● Solid understanding of cross-browser compatibility issues and ways to tackle those.
● Must possess a track record of building Single Page responsive UI.
● Knowledge of NodeJS will be a plus.
● Experience with Databases such as NoSQL and any RDBMS will be a plus.
● Experience with transport protocols such as TCP, HTTP & WebSocket.
● Expressing and appreciating design patterns is a real addition.
We Anju Siima Technologies Private Limited are looking for a Flutter developer who is proficient with dart programming language. Your primary focus will be on developing user interface components and implement them following well known Flutter workflows.
Responsibilities:
- Develop new user interfacing features using Dart / Flutter framework
- Building reusable widget components and front-end libraries/packages for future use
- Maintain existing codebase on repositories
- Translate design and wireframes into high quality code
- Optimising widget components for maximum performance across mobile devices
- Stay updated with emerging technologies and implementing them into the current code base.
Skills:
- Strong skills in Dart & Flutter
- Experience with understanding of Mobile Application Development Lifecycle
- Familiarity with third party libraries and its integration
- Experience with GIT
- Familiarity with RESTful API’s






