Senior Software Engineer – Frontend (React.js)

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.

Headquartered in Ahmedabad, Appitsimple is better known for its innovative "Digital Products" - SoftwareSuggest and CallHippo. It is an IT company that has been revolutionizing & simplifying the way organizations do business since Jan 2014.

We are a growing team of 160+ professional experts coming from diverse backgrounds who have keen expertise in dealing with Digital Products. A flexible work environment, a high level of empowerment, involvement in the company's business decisions, leadership development through mentoring, and skills development initiatives are the big takeaways at Appitsimple Infotek.  

URL:  https://appitsimple.com/about">https://appitsimple.com/about

Product: CallHippo.

URL: https://callhippo.com/

CallHippo was launched in 2017. It is an intelligent VoIP (voice over Internet protocol) service provider for business organizations and call centers. The main objective behind launching CallHippo was to provide easy-to-adopt, cost-effective, scalable, and accessible phone systems to businesses. Customized pricing plans, 24/7 available support, and innovative top-of-the-line features make CallHippo stand out from market competitors. With 2000+ customers across 25+ countries, the company is just getting started and is sure to scale greater heights in the future.

Appitsimple prides itself on a flexible work environment that empowers employees to be key decision-makers to grow personally and professionally. The company strives to develop leaders through an active mentoring program and skill development initiatives. An inclusive workplace, Appitsimple encourages freedom, and independent thinking and aims to create thought leaders in the business ecosystem.

Experience -2+ Years

Responsibilities:

• Design, implement and manage websites using WordPress
• Manage front-end and back-end website development
• Customize WordPress plug-ins and themes
• Optimize website for maximum speed
• Maintain well-documented, reusable, and transferrable code
  
  

Requirements: 

• Proficiency using WordPress
• Be proficient in coding languages such as HTML, CSS, JavaScript, React and jQuery
• Experience using debugging tools such as Firebug and Chrome Inspector
• Strong understanding of front-end and back-end website development

What You Will Be Doing:

• Create highly responsive B2C web-app using a wide range of open source frontend and backend technology.
• Create single page applications using a wide range of javascript & cutting edge libraries/frameworks.
• Responsible for the full lifecycle of a project, including development, unit testing, system testing and change management.
• Research technical issues and provides recommendations to enhance JavaScript products.
• Manage/Lead a team of 10+ javascript fullstack developers to handle a wide range of projects across different products.
• Code reviews, Overall project estimations, Estimation reviews, Project planning.
• Interact with stakeholders for the development requirements gathering.
• Layout a technical career growth plan for the team members.
• Working with multiple projects.

 What we are looking for:

• 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.
• 9-12 yrs of software development on advanced JavaScript stack (Native Javascript, Asynchronous Request Handling, AJAX, HTML5, CSS3, etc).
• 2-4 yrs of experience in leading and mentoring a team. 
• In-depth knowledge in ReactJS & NodeJS
• 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.
• 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.
• Critical of coding practices and development methodologies.

.

• Designing and developing user interfaces using Angular best practices.
• Adapting interface for modern internet applications using the latest front-end technologies.
• Writing JavaScript, CSS, and HTML.
• Developing product analysis tasks.
• Making complex technical and design decisions for Angular
• Developing application codes and unit tests in Angular JS, Java Technologies, and Rest Web Services.
• Ensuring high performance of applications and providing support.

• Bachelor’s degree in computer science, computer engineering or similar.
• Should have 3+ experience as an Angular JS developer.
• Excellent project management skills.
• Salary is negotiable for a right fit.

We are building a global content marketplace that brings companies and content

creators together to scale up content creation processes across 50+ content verticals and 150+ industries. Over the past 2.5 years, we’ve worked with companies like India Today, Amazon India, Adobe, Swiggy, Dunzo, Businessworld, Paisabazaar, IndiGo Airlines, Apollo Hospitals, Infoedge, Times Group, Digit, BookMyShow, UpGrad, Yulu, YourStory, and 350+ other brands.
Our mission is to become the world’s largest content creation and distribution platform for all kinds of content creators and brands.

Our Team

We are a 25+ member company and is scaling up rapidly in both team size and our ambition.

If we were to define the kind of people and the culture we have, it would be -

a) Individuals with an Extreme Sense of Passion About Work

b) Individuals with Strong Customer and Creator Obsession

c) Individuals with Extraordinary Hustle, Perseverance & Ambition

We are on the lookout for individuals who are always open to going the extra mile and thrive in a fast-paced environment. We are strong believers in building a great, enduring

a company that can outlast its builders and create a massive impact on the lives of our

employees, creators, and customers alike.

Our Investors

We are fortunate to be backed by some of the industry’s most prolific angel investors - Kunal Bahl and Rohit Bansal (Snapdeal founders), YourStory Media. (Shradha Sharma); Dr. Saurabh Srivastava, Co-founder of IAN and NASSCOM; Slideshare co-founder Amit Ranjan; Indifi's Co-founder and CEO Alok Mittal; Sidharth Rao, Chairman of Dentsu Webchutney; Ritesh Malik, Co-founder and CEO of Innov8; Sanjay Tripathy, former CMO, HDFC Life, and CEO of Agilio Labs; Manan Maheshwari, Co-founder of WYSH; and Hemanshu Jain, Co-founder of Diabeto.
Backed by Lightspeed Venture Partners

Long Term Contract Job

Senior Frontend Developer 

About us

We are founded in 2007. Our mission is to develop a diverse portfolio of technologies, products, and services,that gives all people equal access to unbiased data and information. We believe that through this access people can empower and protect themselves in today’s
ever-changing world, filled with fake news, deception, and a lack of transparency.

About the Job

We are looking for a Sr. Front End Developer to join our growing team. Your
experience here will give you the opportunity to improve the fundamentals and learn about the
top notch technologies in front end development. If you are someone who is passionate about
building stellar user experiences and great products through elegant code this would be the job for you. You will play a key role in translating our customers and company needs into appealing and functional web pages while proving your ideas with testing.

What You Will Get to Do

1. Work with your team to improve our conversion rates by coding out variations for A/B testing
2. Build better user experiences
3. Rigorously educate yourself with the latest development techniques and best practices
4. Proactively anticipate issues and develop solutions
5. Clearly communicate solutions to team members both verbally and in written documentation
6. Implement new digital technologies or development techniques that help to meetbusiness objectives
7. Look at existing practices and use your experience to help build better practices when necessary
8. Work with our tech leads to decide what long term initiatives we should take on and then motivate others to embrace these initiative

1. 4+ years of front-end development experience
2. Experience with responsive web design and the ability to deliver outstanding functionality to the range of client devices from desktops and laptops to mobile platforms
3.  Familiarity with at least one JavaScript framework (MVW) and know when to do without one when necessary
4. Understanding of HTTP and how clients interact with a web server
5. Solid understanding of best practices. You read the YDKJS books.
6. Capable of coding in ES5 and ES6 and understand the difference between them
7. Up-to-date on HTML5 and CSS3 features
8. Passionate about supporting all browsers, including IE11+
9. Practical experience in design techniques for web UI applications
10. Demonstrated ability to roll up sleeves to develop and implement new features and functionality
11.  Possess an excellent understanding of creative tools in order to develop leading-edge web pages with interesting and innovative client-side capabilities
12.  Be independently driven and resourceful to deliver results with minimal direction
13. Have an entrepreneurial spirit with a drive to contribute new ideas for future development
14. Have the ability to deliver what is required but at the same time, look at code objectively to see areas of improvement
15. Have the ability to work with UX and technical teams to get things done
16. Have the ability to handle multiple, competing priorities in a fast-paced environment
17. Have excellent verbal and written communication skills

1. Experience working in an agile development environment
2. Experience with running experiments
3. Experience in trying out modern frameworks and executing on migration plan

1. You know how to polyfill features that aren't cross browser friendly.
2. You understand same-origin policy and cross-origin resource sharing.
3. You understand prototypal inheritance vs classical inheritance.

Biddano  is seeking a  multi-skilled candidate with a keen eye for design for the position of Frontend Developer. He/She will be responsible for ensuring the alignment of web design and user experience requirements, optimizing web pages for maximum efficiency and maintaining brand consistency across all web and mobile pages, among other duties. 

 The ideal candidate will have strong personal accountability for results, strong commitment to teamwork in support of the company's success, adherence to ethical business practices, and comfort operating in a start-up environment with an ability to prioritize and drive actions to closure.

a start-up environment with an ability to prioritize and drive actions to closure.

Frontend Developer

Responsibilities:

• Use markup languages like HTML/JS/CSS or SCSS to create user-friendly web pages
• Maintain and improve web application and mobile applications.
• Optimize applications for maximum speed
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Get feedback from, and build solutions for, users and customers
• Write functional requirement documents and guides
• Create quality mockups and prototypes
• Help back-end developers with coding and troubleshooting
• Ensure high quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies 

Skills Required:

• Proven work experience as a Front-end developer
• Hands on experience with markup languages
• Experience with JavaScript, CSS and jQuery
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment using AWS S3 or AWS EC2)
• Understanding of layout aesthetics
• Knowledge of SEO principles
• An ability to perform well in a fast-paced environment
• Excellent analytical and multitasking skills
• B.Tech degree in Computer Science or relevant field
• Frontend technology:
• Angular 2+, typescript. (Required)
• React
• Mobile technology:
• Flutter/Dart or other Core Android/IOs development. (At Least one of them required)

• Bitbucket/GIT pipelines for automatic build and deploy.
• JIRA
• Testing with professional test cases.

Experience :

• Minimum 4-7 years of  experience as a Frontend Developer
• Masters in Computer Science, Engineering or similar relevant field

• software engineering experience focused on web development.
• Hands on experience in architecting large scale frontend applications.
• Have detailed hands-on experience of cutting edge web technologies (HTML5, CSS, Javascript, TypeScript), Application Servers, Web Applications 
• Experience developing UI with JavaScript development frameworks (e.g. React, Angular, Vue, Bootstrap, etc)