UI 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.

We are seeking an experienced UI Developer with a strong background in Next.js to join our dynamic development team. The ideal candidate will have a deep understanding of front-end technologies, particularly React and Next.js, and will be responsible for creating high-performance, user-centric web applications. If you're passionate about building intuitive, scalable, and responsive UI components, we'd love to meet you!

Key Responsibilities:

Design and develop responsive and visually appealing user interfaces using Next.js, React, HTML5, CSS3, and JavaScript.

Collaborate closely with designers, product managers, and back-end developers to implement and refine user experiences.

Build reusable components and front-end libraries for future use.

Optimize web applications for maximum speed and scalability.

Write clean, maintainable, and efficient code while adhering to best practices.

Stay up to date with the latest trends, tools, and techniques in web development.

Troubleshoot and debug application issues.

Ensure cross-browser and cross-device compatibility.

Participate in code reviews and mentor junior developers.

Skills & Qualifications:

Experience: 5–8 years of hands-on experience in front-end development with a focus on Next.js.

Proficiency in Front-End Technologies:

Strong knowledge of Next.js, React.js, and other JavaScript libraries and frameworks.

Expertise in HTML5, CSS3, and JavaScript (ES6+).

Familiarity with TypeScript is a plus.

Experience in building responsive, cross-browser compatible websites.

Familiarity with RESTful APIs and integration with back-end systems.

Knowledge of modern web development practices like Webpack, Babel, CSS preprocessors (Sass/SCSS), etc.

Understanding of web performance optimization techniques.

Experience with version control systems such as Git.

Familiarity with agile development methodologies.

• Responsible for assisting in the establishment of an IT Architecture practice, and the adoption of an architecture and standards methodology.
• Manages activities that take place during solution ideation, solution design, and solution implementation.
• Reviews business context for solutions to company challenges as well as defining the vision and requirements for the solution, recommending potential options, (which may include RFIs, RFPs or prototype development), selecting the most optimal option, and the development of a roadmap for the selected solution.
• Communicates the architecture to the stakeholders and collaborates and coordinates with existing domain architects in the formalization and adoption of IT standards and procedures.
• Champions a structured approach to business application solutions.
• Directly assists in the development of a solutions architecture program including departmental roadmaps and project portfolios for IT systems architecture.
• Assures solutions not only are a fit for the specific purpose but also closely align with the standards guidelines of technology solutions.
• Influences changes to standards when necessary.
• Assists domain architecture team on solutions management and timing of financial spend for application solutions.
• Supports the architectural aspects of all application projects in peer IT portfolios.
• Directs the identification and recommendation of appropriate solutions, upgrades, replacements, or decommissioning options incorporating business and technology productivity, usability, and total cost of ownership.
• Develops and executes solutions which further reduce the percentage of time spent on reactive work.
• Provides analysis of security protection technologies as necessary.

[Work Hours & Benefits] Discuss the working hours and benefits specific to your company here. The best performing job descriptions inform future solution architects about flexible hours, the ability to work from home, or other telecommuting opportunities. And they highlight unique benefits, like conference sponsorships, continuing education credits, or paid time off.

• Observe, strategize, develop and design user-friendly UI/UX using markup languages like HTML.
• Designing Client-Side and Server-Side Architecture and Rendering and Static Site Generation.
• To confer with users - by studying systems flow, data usage & work related bottlenecks.
• Design and implement Front-End code
• Interact with the production team, understand their workflow and find new ways to visualize their workflows on web apps.
• Integrating Python Scripts with Python-based UI interfaces like Dash and Flask.
• Maintain and improve web-app
• Optimize applications for maximum speed
• Create quality mockups and prototypes
• Design mobile-based features
• Integrating APIs with front-end user interfaces.
• Build features and applications with a mobile responsive design
• Write functional requirement documents and guides
• Work with data scientists and analysts to visualize their analysis reports
• Help back-end developers with coding and troubleshooting
• Ensure high-quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies

• Strong Knowledge of HTML, CSS, Bootstrap, JavaScript, AJAX, jQuery and Prototyping.
• Strong knowledge of client-side dynamic and rich UI applications development.
• Hands-on experience in C#, Python, .Net
• Strong hands-on experience in popular frameworks and JavaScript ecosystem – JS, Node, Angular, Jquery.
• Experience in Spark, Hadoop, Scala, and Elastic Search is a plus point.
• Familiarity with browser testing and debugging
• Experienced in building applications that meet enterprise needs – secure, scalable, loosely coupled design
• Exceptional design, coding, and problem-solving skills, with a bias for architecting at scale.
• Experience using NPM, Web-Pack, Gulp.
• Familiarity with performance testing and optimization’s.
• Strong knowledge of computer science, algorithms, and design patterns
• Write robust modular front-end code using the latest technologies, test and optimize it to work for high performance and scale and deploy it to the UiPath cloud platform.
• Work with various horizontal teams such as Structure, Electrical, Mechanical, Accessibility, Legal, and Finance and also interact with other core teams across locations at UiPath
• Own the smooth running of your cloud service or docker service, and respond to live site issues.
• Strong oral and written communication, and other soft skills are critical to collaborating and engaging with teams

About the Role

Dremio’s user experience is one of its  key differentiators and makes all your data easily accessible and shareable by your data consumers. UI Engineers at Dremio are responsible for the development of  the user interface and user experience on Dremio’s Data Lake Engine.

Responsibilities and ownership

• Own the  full cycle of development of our modern single page web application from inception, design, development, testing, and production.
• Care deeply about modular design patterns and frameworks  to deliver an architecture that’s rooted in simplicity, that’s easy to iterate on and constantly evolve.
• Passionate about ease of use, experience and quality of the product.

Requirements

• 5+ years of experience working with JavaScript frameworks such as React, Angular.js, Angular, or Vue.js.
• 2 years minimum experience with React is highly preferred and currently utilizing React in their current job.
• Strong coding experience in JavaScript (or TypeScript), HTML, and CSS.
• Passion about UI development and UX design
• Shown proven success in delivering high-quality front end applications
• Fluency in the understanding of SQL and databases (relational or non-relational)
• B.S. or M.S  in Computer Science in a relevant technical field or equivalent professional experience