Senior developer

Job Description

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.

Skills:

• Minimum 4 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.

Roles & Responsibilities:

• Design, develop, and maintain cross-platform mobile applications using React Native.
• Collaborate with UI/UX designers to implement pixel-perfect interfaces and interactions.
• Work closely with backend teams to integrate APIs (REST/GraphQL) seamlessly.
• Write clean, modular, and scalable code following best practices and design patterns.
• Troubleshoot, debug, and optimize mobile apps for maximum performance.
• Stay updated on emerging trends in mobile development and bring innovation into the team.

Requirements

Mandatory

• 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.

Essential

• 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.

Good to Have

• 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.

Is software engineering your passion? Are you always hungry for challenges? Do you like to take risks?  Do you always crave to learn more and more? Do you like to help others solve their problems? Do you like to solve complex problems by simple methods?

• Culture to promote learning and growth by relentless focus on innovation.
• A team of aces to work with
• Streamlined engineering processes woven around Agile methodology with the help of tools
• Design led engineering focus
• Opportunity to work on B2B and B2C products in various domains like healthcare & education

• Opportunity to work on cutting edge technologies 

You have:

• Proficiency in Angular 4+, Typescript, JavaScript, JQuery, HTML/CSS
• Thorough understanding of OOJS & commonly used design principles and design patterns
• Working knowledge of State management using NgRxState management & custom npm packages
• Hands on ES6 features to reduce code and keep code clean
• Working knowledge of RxJS
• Working experience in writing automated unit tests using Jasmine, Mocha or any other similar framework.
• Experience of integrating RESTful Web APIs in Web Application.
• Written efficient and production ready code
• Working experience building high performance and scalable applications
• Ability to troubleshoot and debug application for functional and common problems
• At least 6 years of experience in software development 
• Knowledge of databases - NoSQL or RDBMS. 
• Experience working with version control like Git / Bitbucket
• Experience working in Agile Scrum Methodology
• Excellent written and verbal communication skills 

• Experience working on Web APIs
• Working knowledge of modern programming/scripting languages and runtime environments including node.js, Python/Ruby/Java, and experience in mid-tier web services development.
• Experience building proof of concepts, architecting new systems, and improving existing systems to solve business problems and support scaling
• Exposure to various tools that help in maintaining code quality like SonarQube
• Exposure with Atlassian JIRA application lifecycle management tool
• Exposure to Cloud Platforms like Azure or AWS or GCP

Roles and Responsibilities :

• Lead the delivery of high quality, innovative, flexible, cost-optimized, and scalable technical solutions that meet business requirements
• Design, Develop, test, and maintain software applications with MVC architectures, Microservices, and scalable cloud-native apps.
• Perform hands-on coding and provide thoughtful code reviews
• Mentor and lead team members to continuously improve quality and productivity of deliverables
• Demonstrate ability to work within an agile team as well as collaborate with many other teams on design and implementation strategies. Follow SCRUM Agile Development methodology
• Effective Communication Skills- An ability to express your ideas to the recipient & Co-ordinate and communicate with cross-functional team along with the client's team
• Problem Solving, Hustler - Get Stuff Done, Self-Disciplined Open-minded, User-Focused, Adaptive
• Lean Principles & Analytical Thinking
• Project planning, timelines, and milestones for execution and deliverables
• Participate in the Evaluation Review of your team member

Primary Skills

• Experience in building an enterprise web application using ReactJS as the frontend framework
• Experience with Redux and React Hooks
• Expert in HTML5, CSS3
• Experience in Bootstrap4 or CSS pre-processor like Less or Sass is highly desirable
• Strong knowledge of best practices and modern web design trends is necessary.
• 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
• Should have worked on REST client and WebSockets
• Should be able to write Unit testing using any one of the frameworks like Cypress, Jasmine, Karma, Jest, Enzyme, 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

We are looking for a JavaScript 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 product is important.

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.
• 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.
• 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 (such as Git, SVN, and Mercurial).