Frontend 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.

Qualifications:

Primary Skill Set:

5+ years for experience in developing highly scalable, reliable, secure web applications
Experience with React.js, Node.js, Redux, flux, Javascript (preferably TypeScript).
Atleast 1 years of experience in product or SaaS development.
Excellent Team management, communication skills, both verbal and written
Strong CS fundamentals like data structures and especially the asynchronous challenges that are faced by JavaScript developers regularily.


Preferable Skillset:

One year of experience using AWS services, such as Lambda, SES, SQS, EC2, RDS, ELB’s and have knowledge of VPC’s (AWS and/or RightScale knowledge a plus.
Proficient with the Webpack,Jest, Eslint, Jenkins, Docker, Enzyme.
Experience designing data persistence and caching concepts using both SQL and NoSQL DBMS (MySQL, DynamoDB, Redis, etc.) and client side storage
Profile and improve frontend performance

Responsibilities:

• Review, Evaluate, and Validate technical requirements.
• Work and lead other team members to translate the requirements into final deliverables.
• Understand Storyboards and Visual mock-ups.
• Understand and utilize the latest tools, technologies, and trends in Web development.
• Ensure the deliverables meet Primathon standards, and guidelines.
• Developing your frontend capability in complex problems and expanding your horizon of technologies.
• Responsible for designing, coding and modifying web pages that are focused on content within the standards, guidelines and requirements of clients.
• Work with clients, and other team members as appropriate.
• Understand and utilise the tools and technologies being used.
• Work with CTO to keep on track with the project plan.
• Come up with efficient, modular and scalable solutions for business and technical problems.

Requirements:

• Experience with Frontend technologies (React.js ).
• Proficient understanding of web markups, including HTML, CSS-3
• Proficient with modern JavaScript (ES6+: classes, modules, arrow function, destructuring etc).

About us:

HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.

We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.

To know more, Visit! - https://www.happyfox.com/

We’re looking for an experienced Frontend Engineer to join our growing engineering team to help build and maintain HappyFox’s product offerings.

What you can expect as a Frontend Engineer at HappyFox:

• You will implement product features by writing clean, robust, reusable code with tests.
• You’ll work alongside the Product, Design, and, Backend Engineering teams to iterate on new features within HappyFox products.
• You'll help improve the overall experience of our product by improving the quality of the front-end features.
• You’ll help identify areas of improvement in the codebase and initiate projects to make HappyFox better.
• You’ll contribute to and follow our workflow process, alongside the rest of the Engineering team.

You should apply if:

• You have at least 3 years of relevant professional experience in building web applications with javascript frameworks like Ember.js or React.js.
• You have a sound knowledge of HTML, CSS, and JavaScript.
• You have experience building single-page web apps and a good understanding of best practices in front-end development.
• You have experience in reviewing other team members' code and providing actionable comments.
• You have experience in following industry-standard coding practices.
• You have experience optimizing code and looking for ways to resolve performance issues.
• You are passionate about solving complex technical problems and troubleshooting issues.

Do you love React / Javascript / Frontend?

Like solving different problems, up for learning new stuff every day? Do you Like frontend but also like full stack? Like JavaScript but also like other languages? We are looking for the constantly curious and willing-to-try-new things type of people! 

We are mostly React but not only, but we do also push into all types of strange and common.

Typical tools in our toolbox are:

React
Typescript
Redux (RTK toolkit)
Recoil
Create React App
React-Router
CSS / Sass
a lot of vanilla JS
Figma
Git

Great, if you are familiar with:

Job description for react js developer

In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.

- To ensure success as a React.js Developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class React.js Developer should be able to design and build modern user interface components to enhance application performance.

React.js Developer Responsibilities :

- Meeting with the development team to discuss user interface ideas and applications.

- Identifying web-based user interactions.

- Writing application interface codes using JavaScript following React.js workflows.

- Developing and implementing front-end architecture to support user interface concepts.

- Documenting application changes and developing updates.

React.js Developer Requirements :

- Bachelor's degree in Computer Science, Information Technology, or a similar field.

- In-depth knowledge of JavaScript, CSS, HTML and front-end languages.

-Familiarity with code versioning tools such as Git, SVN, and Mercurial popular frontend development tools, CI/CD tools, DevOps.

- Excellent troubleshooting skills.

Job Type: Full-time

Salary Offer: 3L PA - 5.4L PA

Job Location: Remote for 6-12 months due to the pandemic, then Mumbai, Maharashtra

Required experience:

1-2 years and above experience in developing frontend UIs using HTML5, CSS, Javascript with ReactJS. Candidate must have experience with data binding and state management (Redux/MobX)

Key Skills required :

1. Proficiency in HTML5 development

2. Proficiency in CSS Frameworks like Bootstrap ⅘

3. Strong understanding of Javascript

4. Hands on experience in building and implementing UIs in ReactJs including experience in building components, observables, state management and data binding

5. Strong expertise in building Responsive Websites

6. Experience fixing performance issues using tools like GTMetrix and Pagespeed Insights

7. Working experience in maintaining code versioning by committing to Git repositories

KRAs includes :

1. Understanding the scope of work and arriving at timelines

2. Frontend UI development using Reactjs, HTML5, Javascript and CSS

3. Implementing media queries and following Responsive Web Design principles for responsive websites

4. Implementing state management, databinding and mocking APIs

5. Unit testing prepared web applications and HTML pages

6. Coordinating with the testers to resolve any bugs

7. Reporting on daily and weekly progress

8. Optimization and performance tuning of code

• Instrumental in preparing SRS, detailed design document, case diagrams, data flow diagrams, class diagrams.
• Scripting and Programming for varied solutions.
• Constructing specifications and determine operational feasibility.
• Deploy programs and evaluate user feedback & experience on application deployment.
• Writing database script procedures, function & triggers.

• Must be well versed with software development lifecycle (SDLC) management with different project methodologies especially Agile methodology (Scrum).
• Strong Oops concepts, Entity Framework, Design Patterns bootstrap, Web/Windows Services knowledge.
• Working knowledge on C#, ASP.NET, MVC 4.0/5.0, LINQ, Javascript, JQuery, bootstrap, Web/Windows Services.
• Good to have knowledge of Angular JS.
• Must have worked on database like SQL Server/ MySQL.
• Working knowledge on google maps API or GIS would be an added advantage.

• 5-7 years of IT experience. B.E./B.Tech. in Computer Science/ IT or MCA would be preferred.
• Excellent oral and written communication skills.
• Candidate should hold 60% & above in 10th, 12th and Graduation

• If you are interested in creating a user-friendly environment by writing code and moving forward in your career, then this job is for you.
• Collaborate with back-end developers and web designers to improvenusability.
• Writing tested and idiomatic JavaScript, HTML and CSS.
• Present key milestone deliverables to peers and execute level stakeholders.
• Build reusable code and libraries for future use.
• Tech-savvy professional, who is curious about new digital technologies and aspires to combine usability with visual design.

1. Bachelor's Degree in Computer Science
2. 1-5 years of professional software development experience
3. Experience with ES2015+, React, Webpack/Rollup, CSS, Node.js, Object oriented JS, FP in JS, TDD/BDD, Git, CSS
4. Ability to write clean, effective code
5. Strong problem solving and troubleshooting skills
6. Ability to work independently in a fast-paced environment with frequent production releases
7. Understanding of performance and efficiency with a strong customer focus
8. Work cross functionally to collaborate with designers o iterate on the design and implementation of our product
9. Be empathetic towards customers and appreciate the user's experience