UI Developer

Certa (getcerta.com) is a Silicon Valley-based tech product start-up that is automating the vendor, supplier, and other stakeholder onboarding processes (think background checks, agreements, and the works) for companies across industries and geographies. With multiple Fortune 500 and Fortune 1000 clients, at Certa's tech team, you will be working on stuff that is changing the way huge companies do business.

Must Haves:

• Experience developing enterprise-grade quality software.
• 3+ years of experience building large-scale front-end applications using React.
• 3+ years of experience using type-safe JavaScript-based languages, such as TypeScript.
• Understanding of modern frontend ecosystems, including Bundling(preferably using vite), Linting, Testing and Releasing
• Success with mentoring mid-level & junior Engineers.
• Experience in Agile software development methodologies.
• Experience writing automated tests (e.g., Vitetest, Cypress, Jest, Testing Library).
• Experience in building, scaling & maintaining a design system from scratch.
• Experience in improving rendering as well as delivery performance for front-end applications.
• Experience in writing semantic HTML.
• Experience in building scalable, responsive, and cross-browser-compatible web applications.
• Experience in a peak-performance organization, preferably a tech startup.
• Experience working with a remote team.
• Data analysis experience, and understanding of how analytics can help with product decisions.

Bonus:

• Experience building integrations and data synchronizations with event pub/sub-models.
• Experience with WebGL
• Experience in building offline applications using Web Workers
• Open source contributions.
• Running his/her own blog.
• Experience with building 100% keyboard and screen reader-accessible applications.
• Experience setting up and customizing JavaScript tooling and building systems.

As a Senior Software Development Engineer, you will drive the responsibility of developing features for our existing products and bring new innovations to the table. You will work with the latest tools and frameworks, crafting seamless user experiences that drive productivity and innovation. The ideal candidate is an enthusiastic go-getter, problem solver, and works with “there is always a “solution' attitude, combined with empathy and strong communication.

What You Will Do in This Role

• Building and developing new software features for our JustCall product.
• Working through the design, implementation, integration, testing, and deployment phases of project delivery.
• Provide software design and programming expertise to support research projects.
• Collaborating with cross-functional teams - Experimenting and reiterating on software basis feedback from customers/product & business stakeholders.
• Designing and developing new fast and robust algorithms to ensure that the platform supports millions of communications exchanges every month.
• Working with our engineering team to deploy and maintain research models in the production.
• Collaborating with the product and design teams on crafting great user experiences.

What you need to be successful

• 3-7 years of experience in ReactJS (not native), JavaScript, HTML5, and CSS3.
• Experience in designing and building systems for maximum performance, reliability, and scalability
• Experience in working with object-oriented programming with least one object-oriented programming language and understanding of browser caching.
• Experience with seamless integration of front-end to backend functionality.
• Knowledge of high-level programming concepts like promises, and data-binding.
• Ability to design relational database schema at scale with Tailwind experience, including concepts like layout, specificity, cross-browser compatibility, and accessibility.
• Proficient understanding of code versioning tools, such as Git.
• Experience with test-driven/behavior-driven development using automated testing tools.

Benefits and Perks

• Enjoy a 5-day work week with the flexibility to work from home 2 days a week.
• Take advantage of flexible holidays, allowing you to plan your vacations according to your needs.
• Celebrate collective success with frequent recognition of our team's efforts.
• Collaborate with a truly global team, spanning six countries.

SaaS Labs is a diverse international team of passionate problem solvers. With innovation, experimentation, and customer obsession at the heart of their ethos, the company has been honored with 30+ innovation awards including the coveted Deloitte Technology Fast 50 and FT High Growth Companies (Asia Pacific). We are an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We would love to work with you. Apply now!

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.

Responsibilities:

• Design the overall architecture of the web application.
• Maintain code integrity, and quality, and ensure responsiveness of applications.
• Address and improve any technical issues.
• Building reusable components and front-end libraries for future use.
• Must have strong experience in designing and maintaining a database.
• Work with modern frameworks and design patterns, minimum one-year experience with Full stack paradigm required.
• Handle technical queries raised by the development team and provide support and guidance to them.
• Troubleshoot and debug issues, perform testing, and optimize application performance
• Collaborate with front-end and back-end engineers to design and create advanced, elegant, and efficient systems.

Skills:

• Strong proficiency with 3 - 5 years of experience.
• Expertise in Laravel and a good understanding of other core PHP frameworks using REST APIs.
• Professional, definite communication skills.
• Excellent knowledge of HTML, CSS, Ajax, jQuery, and JavaScript.
• Extensive experience in designing and maintaining databases such as MySQL.
• Mastery of CMS such as WordPress and Magento is an advantage.
• Comprehensive knowledge of version controlling – GIT.
• Creating self-contained, reusable, and testable modules and components.
• Optimizing client and server-side code for maximum speed.

We are seeking a talented React Developer with hands-on experience in MUI and Tailwind CSS, as well as expertise in state management tools such as Saga and Redux. The ideal candidate should have a passion for front-end development, an eye for design, and be comfortable working in a fastpaced environment. You will be responsible for creating user interface components using React.js, React Native integrating with RESTful APIs, and collaborating with cross-functional teams to build web applications.

Responsibilities:

 Build new user-facing features using React.js, React Native and other front-end technologies

.  Develop reusable components and libraries for future use.

 Collaborate with the development team to design and implement RESTful APIs.

 Translate designs and wireframes into high-quality code.

 Create responsive HTML designs based on wireframes built on PSD, Figma, and ETC. to work across mobile and web browsers.

 Develop and implement front-end architectures and design patterns.  Stay up-to-date with emerging trends and technologies in front-end development.

 Write unit tests and integration tests to ensure code quality.

 Ensure code follows best practices and coding standards.

 Work collaboratively with UX designers and product owners to ensure a seamless user experience

Job Role:  Senior Software Developer (React native/React js)

Required Skills

• React Native minimum experience should be 3 YRS.
• 2+ years of experience in javascript. 
• Minimum 2 years of experience in Typescript and ReactJs. 
• React-native components Knowledge and Redux. 
• Design Layout knowledge 
• Good communication