Senior Frontend Developer

We are looking for a skilled React Native Developer to join our mobile development team. You will be responsible for building performant, maintainable, and responsive mobile applications for iOS and Android platforms using React Native.

Key Responsibilities:

• Develop cross-platform mobile applications using React Native and JavaScript
• Translate designs from Figma or other specs into responsive UI using Flexbox, StyleSheet, and semantic components like View, Text, and Image
• Work with APIs using fetch, async/await, and implement robust error handling
• Use React Hooks (useState, useEffect, useRef, etc.) and manage component state and lifecycles effectively
• Optimize performance using FlatList, SectionList, useMemo, useCallback, and memo
• Handle accessibility, dark mode, safe areas, notches, and orientation changes
• Implement animations using Animated API and LayoutAnimation
• Use tools like React DevTools, Flipper, and Chrome DevTools for debugging and performance profiling
• Integrate third-party libraries, native modules, or write custom native bridges as needed
• Handle OTA updates, app size optimizations, and splash screens for both platforms
• Set up automated testing using tools like Detox or Appium
• Integrate and manage analytics (Firebase, Mixpanel), Crashlytics, and logging
• Write clean, modular, and reusable code following patterns like atomic design or MVVM

As a member of the founding engineering team at Kombai, you'd work directly with the CTO and CEO to build a global product for the frontend dev teams from scratch. Together, we'd have a crack at several hard, high-impact problems - often involving challenges across product, engineering, and research areas.

Desired Qualifications & Skillset

For all positions of our early engineering team we are looking for people who:

• Are fully hands-on with latest JS development
• Are good frontend and web application architects
• Are quick and agile
• Have a good learning, problem solving and logical aptitude
• Have a mindset to commit for 3-4 years

In addition to the above, the candidates for Senior Product Engineer should also have:

• Thorough understanding of good Frontend engineering & architecture practices. In our experience, this usually comes from working in an excellent frontend team with an excellent architect, on a complex applications
• Experience: 3-6 years

• Strong MVCC frontend development experience in Angular, React, Vue, Angularjs, REDUX, or similar frameworks
• Strong foundation skills in HTML, CSS, SASS, LESS, SCSS, Javascript, OO Javascript (OOJS), and JQuery 
• Responsive design techniques, highly proficient with strong security and performance optimization techniques.
• Experience building reusable components using modern techniques
• Experience building PWA and Hybrid applications using Ionic, React Native, etc. is a plus
• If you don’t have experience with MVCC frameworks like Angular, we will still consider if your fundamental skills (HTML, CSS, JS) are strong

We are looking for a JavaScript Developer who is motivated to combine the art of design with the art of
programming. Responsibilities will include implementing visual elements and their behaviors with user
interactions. You will work with both front-end and back-end web developers to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions.

Responsibilities
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Work with an international team. Remote work / telecommuting is possible

Desired Skills and Experience
• Strong understanding of JavaScript, its quirks, and workarounds (our platform is pure JS)
• Solid experience (2+ years) with related Web Technologies ( HTML5, CSS3, SVG )
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Proficient understanding of CORS issues and ways to work with such issues
• Proficient understanding of social network APIs
• Good understanding of browser rendering behavior and performance
• Experience in mobile web development ( iOS / Android / Windows Mobile )
• Fluent with Linux/Unix environments
• Knowledge of PHP optional but desirable
• Writing and maintaining batch jobs to streamline processes (Shell, Perl etc.)
• Ability to set priorities and meet deadlines in a dynamic, fast paced environment
• Inclined to take ownership of tasks and to ship highly polished products with excellent attention to detail
• Responsible, self-motivated worker and team-player; excited about new technologies
• Strong verbal and written communication skills in English

1. Work closely with design, product management, and development teams to create elegant, usable, responsive, and interactive interfaces across multiple devices.
2. Turning UI/UX designs into prototypes, creating awesome interactions from designs, writing reusable content modules, and maintainability of the code.
3. Implement UI development principles to ensure that the product client-side serves at scale.
4. Review and optimize app usage by monitoring key metrics and rectifying the issues proactively.
5. An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.
6. Developers should be team player or should work individually when required.
7. Developer should work parallel to backend developers.

1. 1 to 2 years of relevant work experience as a web developer, UI developer, JavaScript expert, or frontend engineer
2. Proficiency in HTML, CSS, JavaScript, and jQuery.
3. Good understanding of APIs and how to use them to get the work done fast.
4. Proficiency in writing clean and optimized code.
5. Familiar with UI layouts, SASS, Bootstrap, and the CSS GRID system.
6. Experience debugging using popular JavaScript-based tools like Chrome Developer Console.
7. Knowledge of ReactJs/VueJs & Python will be a plus