
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, 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.

About Certa
About
Certa’s no-code platform makes it easy to digitize and manage the lifecycle of all your suppliers, partners, and customers. With automated onboarding, contract lifecycle management, and ESG management, Certa eliminates the procurement bottleneck and allows companies to onboard third-parties 3x faster.
Tech stack
Connect with the team
Similar jobs
· 7+ years of professional experience in front-end development.
· 5+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.)
· Strong understanding of JavaScript (ES6+), HTML5, and CSS3.
· Experience with RESTful APIs, GraphQL, and WebSocket integration.
· Proficiency in modern build tools (Webpack, Vite, Babel, etc.).
· Expertise in state management libraries (Redux, MobX) and React Query.
· Solid understanding of UI/UX principles and responsive design.
· Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
· Familiarity with modern CI/CD pipelines and version control tools (Git).
Responsibilities
Ability to work on a cross-functional team within a very agile team, delivering on time and with high quality
Adjusts and defines new processes as they arise due to known and unknown customer/engineering requirements as it relates to frontend web development
Provides feedback on frontend architecture, code organization and CI/CD infrastructure for the team
Staying up to date with the best practices and future frontend development
Provides frontend leadership expertise and mentoring to other developers on not only the team, but the engineering organization as a whole
Takes pride in delivering ground breaking UI to web applications
Working closely with UX designers to turn their ideas into reality as it relates to creating visualizations for next generation cybersecurity
Qualifications
Proficient in developing large REACT Web Applications
Experience with Django applications
Proficient with TypeScript
Experience with Postgres or other relational database(s)
Experience developing REST APIs with authentication and scaling
Familiarity with some ORM (Object Relational Mapper) libraries
Cloud computing architectures (AWS, Azure, Google Cloud)
Experience with Docker a plus
About Rara Delivery
Not just a delivery company…
RaRa Delivery is revolutionising instant delivery for e-commerce in Indonesia through data driven logistics.
RaRa Delivery is making instant and same-day deliveries scalable and cost-effective by leveraging a differentiated operating model and real-time optimisation technology. RaRa makes it possible for anyone, anywhere to get same day delivery in Indonesia. While others are focusing on ‘one-to-one’ deliveries, the company has developed proprietary, real-time batching tech to do ‘many-to-many’ deliveries within a few hours.. RaRa is already in partnership with some of the top eCommerce players in Indonesia like Blibli, Sayurbox, Kopi Kenangan and many more.
We are a distributed team with the company headquartered in Singapore 🇸🇬 , core operations in Indonesia 🇮🇩 and technology team based out of India 🇮🇳
Future of eCommerce Logistics.
- Data driven logistics company that is bringing in same day delivery revolution in Indonesia 🇮🇩
- Revolutionising delivery as an experience
- Empowering D2C Sellers with logistics as the core technology
A section describing benefits and life at your company is a great way to attract talent.
About the Role
- Architect, build, and maintain excellent React Native applications with clean code.
- Implement pixel-perfect UI's that match designs.
- Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
- Integrate third-party APIs.
- Work as part of a small team to build applications.
- Write unit and integration tests.
- Release applications to IOS and Google Play stores.
- Work with native modules when required.
- Work as part of a small team, which will include other React Native developers, a project manager, QA professional, and designer.
- Complete two-week sprints and participate in sprint retrospectives and daily standups.
- Assist with building estimates.
- Interface with clients via Slack, Zoom, and email.
- Track your time throughout the day using Toggle.
- Work with modern tools including Jira, Slack, GitHub, Google Docs, etc.
- Be part of a community of React Native developers who share knowledge and help each other as problems arise
Requirements:
- Knowledge of REACT tools including React.js, Webpack, Redux.
- Experience with user interface design.
- Excellent troubleshooting skills.
- Good project management skills.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
Skills Required:
- React (Must), Preferably mobx experience
- Modern CSS layouts like Flex, Grid
- Strong fundamentals in OOP design patterns
- Basic understanding of REST API's
Responsibilities
- Developing new user-facing features using React.js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Hands-on design and coding are mandatory.
- Design and develop new features and functionality for a consumer e-commerce product with rich UI content.
- 5+ years of experience in building single-page applications using modern JS frameworks.
- Expertise in React JS, ES6, HTML5, SCSS, and related technologies.
- Experience building front-end for products from scratch.
- Experience in building REST API, preferably using .Net Web API.
- Should have good experience with application design, implementation, maintenance, diagnosing/correcting issues, and maintaining compliance with industry security standards under minimal direction.
- Research and evaluate new software, frameworks, and techniques to provide recommendations to the division.
- Implement defect free quality code by writing appropriate unit-tests and regression tests.
- Should possess excellent Interpersonal and communication skills.
- Bachelor's degree in Computer Science or a technical field.
Expertise of UI framework - React/Redux, RXJS
Preferred experience with the new generation of Web Programming - using Micro Service, REST/JSON, Component UI models
Familiarity with code versioning tools such as Git, SVN
Knowledge of performance testing frameworks like JMeter, Mocha and Jest (Preferred)
Excellent troubleshooting skills
Knowledge of Database.
*Preferred candidates from product Companies*
Job Description:
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a desired structure is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Job Requirements:
- Strong development and fundamental knowledge of React Native.
- Minimum 1 year of hands on experience in React Native is required for this position
- Leverage native APIs for deeper integrations with iOS/Android platforms.
- Work with engineers, designers, product managers.
Skills Required : React-Native, JavaScript, ES6, REDUX, API, Firebase, Android setup, iOS Setup
You will be the right fit, if you have a keen eye for details and high standards for code quality and efficiency, creating innovative new features and maintaining existing ones.
Responsibilities:
- Developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux).
- Building reusable components and front-end libraries for future use.
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Integration of the front-end and back-end aspects of the web application
Requirements:
- Min 1+ year of experience in developing modern web applications using React and Redux.
- Strong proficiency in CSS, JavaScript, including DOM manipulation and the JavaScript object model
- Good understanding of Database schema, design, optimization, scalability.
- Great communication skills, a strong work ethic.
- Ownership of the product from start to finish.
- Ability to learn new technologies quickly.
Nice to have:
- Experience with AWS
- Expert level understanding of the HTML DOM and underlying event model
- Prior Open source contributions
- Experience building responsive designs
- Design and develop cloud native enterprise applications as per the strategic application roadmap of DSP
- Ensure strict adherence to code quality, coding standards and overall deliverable quality as per the defined standards
- Write automated unit and integration tests to ensure defect free code
- Learn and develop proof of concepts with newer technologies when required








