
Your Role in the Bigger Picture:
As a React Native Developer at Marmeto, you will play a critical role in building high-performance, cross-platform mobile applications for iOS and Android. You will collaborate with UX/UI designers, backend engineers, and product stakeholders to deliver intuitive and scalable mobile experiences. This role demands a developer with a deep understanding of mobile architecture, native modules, and modern development best practices.
What You’ll Own at Marmeto:
● End-to-end development of scalable, high-performance web interfaces using React
● Translating UI/UX designs into reusable, production-ready components
● Ensuring code quality through code reviews, unit testing, and best practices
● Optimizing application performance and responsiveness across devices and browsers
● Collaborating with cross-functional teams to ship features from concept to deployment
● Mentoring junior developers and contributing to technical discussions
● Driving continuous improvement in frontend architecture and workflow
The Experience That Sets You Apart:
● Minimum 0 to 2 years of hands-on experience with React Native for Android and iOS development.
● Strong proficiency in JavaScript, TypeScript, and ES6+ features.
● Solid understanding of React Native architecture, including Hooks, Redux/MobX, and Context API.
● Experience with native module integration (Android/iOS) and third-party libraries.
● Proficient in using React Navigation, AsyncStorage, and mobile design patterns.
● Familiarity with debugging tools like Flipper, Chrome DevTools, and React Native Debugger.
● Experience in publishing apps to the App Store and Google Play.
● Good understanding of mobile performance optimization and memory management.
● Proficiency with version control systems like Git.
Your Subject Matter Expertise:
● Should have built solutions/applications end-to-end, not just contributed as part of a larger team.
● Should envision continuing in a deep mobile development role 5+ years down the line.
● Strong command over JavaScript, TypeScript, and React Native internals.
● Experience working with Redux, React Hooks, and lifecycle methods in mobile contexts.
● Deep understanding of platform-specific limitations, capabilities, and mobile UI/UX standards.
● Proficiency with Git and collaborative workflows (e.g., branching, PRs).
● Familiarity with CI/CD for mobile.
● Understanding of offline storage, background sync, and performance monitoring.
● Knowledge of native development (Swift/Kotlin) to bridge native modules when needed. ● Exposure to tools like Figma, Sketch, or Zeplin for design collaboration.
● Experience with e-commerce platforms like Shopify, BigCommerce, or similar.

About Marmeto
About
Marmeto is an Information Technology company. We have one aspiration – to become a top-notch business in the service industry. And we have one belief – hard work with 100% dedication always yields complete client satisfaction, which is what we are constantly working towards. Other than that, it’s simply a magic potion of honesty, loyalty, and morality that unifies our team to deliver the best to our clients.
Our sole aspiration is our constant motivator, our belief is our guiding light, our values are our abiding rules and our personnel is our heart and soul. After all, to us, this is a world where our performance is measured by how readily we place our client’s business along with our own.
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Required Skills and Experience:
- 5 - 11 years of experience in front-end development, with a strong focus on React.js.
- Proven experience with React.js and related technologies (e.g., Redux, React Router, Hooks, Context API).
- Strong proficiency in JavaScript, HTML5, CSS3, and modern front-end build tools (e.g., Webpack, Babel, etc.).
- Hands-on experience with RESTful APIs, Server Sent Events, WebSocket's
- Hand’s on experience with web components, micro frontends
- Deep understanding of browser apis like history, intersection observer, event handling, virtual panes, drag and drop etc
- Ability to work on a complex and fast moving code base.
- Familiarity with TypeScript and its integration with React applications.
- Strong problem-solving skills and attention to detail.


Job Description
This is a remote position.
We’re in search of a React-Native architect who can build excellent
react-native applications with clean code.
Requirements
Must-haves:
1. You need to be excited about the problem that we are trying to solve
2. 2+ years of experience building applications in React Native
3. Build pixel-perfect, buttery smooth UIs across both mobile platforms.
4. Strong JS fundamentals
5. Experience with iOS or Native Android development experience
6. Ability to give clarity and communicate well with the team, including
Product, Backend and Dev-Ops (if and when needed)
7. Ability to use profiling tools well, getting to root causes of bugs fast
8. Ability to pick and work on adjacent technologies if and when
required (Eg: If the best performance monitoring solution needs a
basic firebase setup, that should not be a blocker for you to go ahead
and do so)
9. Maintain code and write unit tests to ensure the product is of the
highest quality.
10. Reach out to the open-source community to encourage and help
implement mission-critical software fixes—React Native moves fast.
11. You need to be comfortable working in a remote environment (Good
Internet connection and availability on phone is required)
12. Keen to learn!
Good to have:
1. Experience with React.js
2. Experience in Test Driven Development
3. Ability to tell Product what creates better User Experience, ability to
tell backend what API responses will help the user get a faster load
time
4. Inquisitiveness to understand the system as a whole, and not only be
stuck to your domain of expertise (Eg: Asking questions like why
does this particular response take so much time as compared to
others, and brainstorming with the backend engineer on how to
improve on it)

Looking for candidates only with tier 1 colleges OR have experience in a product-based company.
You will be designing front-end architecture with architectural guidelines in mind (secure,high-performing, scalable, extensible, flexible, simple).
● Architect, Design and develop front-end applications.
Desired Skills
● Minimum 6+ years of coding experience.
● Strong hands-on experience on React.js, MVC & related JS Frameworks.
● Strong knowledge of HTML5, CSS3, responsive design, single page applications.
● Build a highly scalable product right from scratch.
● Expertise in caching, minification, bundling techniques to improve front-end performance.
● Experience in working with AB Testing.
● Experience in using front-end monitoring tools to troubleshoot errors and recognise performance bottlenecks.
● Strong foundation in computer science fundamentals: data structures, algorithms, and coding.
● Proficient understanding of code versioning tools(GIT, SVN), working experience with Agile methodology and fast iterative development cycles
SKILLS: UI Development,Angular,Javascript,HTML,CSS,Monitering Management,etc.,
Role
We are looking for a Lead UI Engineer to design and build multiple channels for user interaction.
Responsibilities
- Design/Architect and develop core features of the UI/frontend.
- Design/Architect and develop policy framework to provide rich UI for various features of the solution.
Requirements:
- Must have 6+ years of experience in working in frontend technologies
- Must have at least 2-3 years. of experience with Angular2 or above versions.
- Must have at least 5+ years of experience with HTML/CSS/JavaScript/TypeScript.
- Experience with PrimeNG and Vega is a plus
- Strong background in developing UI for Monitoring and Management systems, dealing with topology, and different telemetry such as metrics, traces and logs
- Familiar with containerization solutions like Docker/Kubernetes etc.
- Familiar with serverless technologies like AWS Lambda.
- B.E/B.Tech/MS degree in Computer Science, or equivalent

Required Skills
1) Good experience in Angular Latest Versions
2) Hand on Node.JS./Express JS
3) Database : MYSQL/MongoDB
4) Experience in Java Script, Typescript.
5)Good experience in HTML5, CSS3, JavaScript, Jquery
6) Experience working in an Agile environment.
7) Good communication skills.

Work Responsibilities
- What You’ll Do:
- Engineers will develop and improve features for products such as WebView pages called from within Mercari’s web version and native app, along with tools used by the Customer Support Team for answering user inquiries and providing transaction support.
- Senior engineers in the Frontend Team are expected to use their technical skills to lead the team and product development, train members through design and code reviews, and make contributions and improvements to the hiring process, including technical tests.
- Development Environment:
- Languages: HTML, CSS, JavaScript, TypeScript, React, Gatsby, Next.js, GraphQL, Apollo Client, Redux, Cypress, Rendertron, Lit, Playwright
- Infrastructures: Google Cloud Platform (Compute Engine, Kubernetes Engine, App Engine)
- Configuration management tool: Terraform
- Other: Circle CI, GitHub, Slack, JIRA, Crowi, Spinnaker, Datadog
Minimum Requirements
- Shared understanding and belief in Mercari Group's mission and values
- At least 3 years of experience in development related to frontend fields such as web browsers, JavaScript, TypeScript, React.js, Next.js, or Redux
- Experience with developing and operating large-scale products
- Ability to design and develop with performance and scalability in mind
- Ability to use HTML and CSS to implement solid user interfaces
- Knowledge of JavaScript and experience developing with UI libraries or frameworks such as React, Vue.js, and Angular
- Able to understand and explain web operation principles and browsers
- Understanding of version management and ability to participate in development via Git
- Effective communication skills, needed for product development with team members and with other teams
Preferred Requirements
- Extensive knowledge of standard web technologies and specialized knowledge in some areas, like TypeScript, React.js, Next.js, Redux
- Understanding of the characteristics of different libraries/frameworks and the ability to introduce them to projects where necessary
- Ability to design architecture based on the characteristics of the app
- Ability to consistently take initiative in implementing improvements to the app
- Project management and/or team leadership
- Cloud development experience (preferably GCP or AWS)
- Experience contributing to an open-source project
- Familiarity with CI systems and the release process
Working Conditions
Employment Status
Full-time
Office
Bangalore
- Hybrid Workstyle

Skills:
- 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 (Redux)
- Familiarity with newer specifications of ECMAScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)

2+ years on ReactJS / VueJS
Key Core Skills for React
Experience in building a single page application using ReactJS / VueJS
Strong knowledge of best practices and modern web design trends is necessary.
Must have experience for HTML5, CSS3, Bootstrap, Custom Graphics using SVG
Must have experience using CSS pre-processor: either LESS or SASS
Some experience with modern web-based typography.
Excel at rapid prototyping and at writing good code.
Experience with testing/debugging in multiple browsers and platforms.
Expertise in using Javascript and JQuery
Should have worked on REST and WebSockets
Should be able to write Unit testing using any one of the frameworks like Jasmin, Karma, Jest or
any other similar framework.
Should have experience in either one of the Build scripts like Gulp or Grunt or Webpack
Low-Latency UI, Page optimization, and bundle build+caching
Problem-solving and debugging skills
Component-based architecture
Key Tools
Git
Candidate should have worked on multiple projects using Git for version control
Candidate should be aware of Git commands like clone, pull, merge, etc.
Candidate should be aware of Git flow, like raising a PR and getting code reviewed
Candidate should have worked on Github or Gitlab or Bitbucket
Good To Have skills
Docker
Typescript
Node.JS
Experience with some NoSQL DBs like MongoDB
Experience with some CI/CD
Experience with WebPack or Gulp or Grunt
Location: Ahmedabad
Required Experience: 1-4 yrs Salary 12000 to 40000 per Month

Fieldproxy is a no-code workflow tool that lets anyone with a field team quickly build applications to efficiently manage their field operations. We are a VC-funded startup and are backed by some of the leading venture funds & angels in India & US.
We are looking for React developer, who is quick to grasp and execute the requirement. Fieldproxy is the first of its kind product in the space - and we are looking for out of the box thinkers with original thought process and lateral thinking. The code you ship will be used by thousands of users every day helping them get their work done. You will join a young, dynamic and fast-paced environment, work with cross-functional teams to design, build, and roll out products that deliver the company's vision and strategy.
- Developing and testing flexible, scalable web application.
- Collaborate with designers and backend developers to produce optimum output.
- At least 2 years of excellent experience in creating Frontend applications with React js.
- Should Have experiences in state management tools like Redux, context Api and React hooks.
- Solid understanding of functional vs Object-oriented programming in react.
- Excellent responsive design skills and should have experience with CSS preprocessors like Sass or Styled-Components.
- Experiences of working with the back-end developer in the process of building the RESTful API.
- Proficiency with Data visualization and charting tools/frameworks like HighCharts and D3.JS is a huge plus!
- Experience with any one of the testing tools like Jest, react-testing-library or enzyme.
- Able to improve the lighthouse performance of web apps and SEO.
- Proficient understanding of code versioning tools: Git.
- Understanding of Javascript bundlers like Webpack, parcel or rollup.
- Experience in Next.js or Gatsby and Typescript is an added advantage. Skills:- Web and React.js

As a Senior Experience Technologist, you’ll be working as part of an agile team with other passionate, driven, and talented people, creating innovative solutions for our clients. Your primary responsibilities will include developing interactive web-based, mobile, and/or desktop applications using Sapient as well as industry best practices to deliver high value and quality to Publicis Sapient clients.
What are we looking for in you?
• Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect and clients
• Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and also service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level
• Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)
• Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.
• Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.
• Mentor junior engineers in helping review code, guiding on technical decision making
Key Requirements:
• 4-9 years’ experience
• Hands-on knowledge of HTML5, CSS3, JavaScript
• Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript - and practical uses in building complex interactive experiences, primarily with ECMAScript 2015+. You should be up-to-date with new specifications (different stages), and also, using transpilers like Babel to use features from all stages
• Good understanding of creational and structural design patterns in JavaScript
• Experience working with Single Page Applications (SPA) with universal rendering capabilities.
• Good understanding of React.js, its core principles - lifecycle methods, virtual DOM etc. and at least 6 – 12 months hands-on experience with the same
• Understanding of one-way data flow and the Flux architecture.
• Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components
• Core understanding of how React’s state management works out of the box.
• Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each
• Thorough understanding of Webpack bundler (version 2+).
• Good understanding of the Web Components standard.
• Hands-on experience with building Progressive Web Apps (PWAs) on any framework.
• Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.
• Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme
• Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.
• Understanding of SEO and accessibility and making it part of the development workflow
• Moderate to Strong graphics manipulation/optimization skills using Photoshop is a plus.
Knowledge & experience of the below skills will earn additional brownie points:
• Logically understands relational databases like MySQL and non-relational databases like MongoDB and can manage to work with it.
• Hands-on experience with GraphQL.
• Hands-on experience working with client-side templating languages like Handlebars, Mustache, etc.
• Hands-on experience with Functional Programming (FP)
• Hands-on experience working with frontend build systems and automating the same using any task runner
• Understanding of hybrid vs native mobile apps – and pros/cons with respect to PWA.
Hands-on experience working with server-side JavaScript frameworks like Express, Koa, Hapi etc. (based on Node.js
• Good understanding of REST APIs and Microservices. Should have an understanding of how resources are organized and how an application should align based on the same. You are expected to have an understanding of how CRUD operations map to HTTP methods for a well-designed service.
• Hands-on with DevOps pipeline and able to tweak/change build/deployment pipeline as needed in the context of a module (e.g. Jenkins / Travis / Now.sh / Gitlab)
• Experience with configuring Webpack from scratch and working knowhow of Rollup / Parcel.
Education:
Bachelors in Computer Science or equivalent education covering Math, Algorithms, Data Structures, Networking, Databases, Operating Systems, Graphics.
About us: At Publicis Sapient, we enable our clients to thrive in Next and to create business value through expert strategies, customer-centric experience design, and world-class product engineering. The future of business is disrupting, transforming, platforming, and becoming digital to the core. We see it in every major industry, from financial services to automotive, consumer products, retail, energy, and travel. We are looking for people who have the courage to break out of what has always been to go do what will be. If you have an optimism that says there is no limit to what we can achieve in this exciting time, then we should talk. Our work is fueled by challenging boundaries, multidisciplinary collaboration, highly agile teams, and the power of the newest technologies and platforms. Our people thrive because of the belief that it’s both our privilege and
responsibility to usher our clients and the world into Next. We are seeking those deeply skilled, bold, collaborative, flexible, and who want to reimagine the way the world works to help businesses improve the daily lives of people, and the world. This is the world-class engineering team where you should build your career.

