React.js 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.

We are looking for a Frontend Developer who would be working on the bleeding edge of technologies. We work primarily with React, Typescript and Redux.

Responsibilities:

• Understand why a particular design was chosen and code accordingly.
• Will have to deliver clean bug-free unit-tested code with minimal guidance.
• Strive for continuous improvement by refactoring and applying best practices.
• Learn and adapt to new technologies as necessary.

Requirements:

• Must be proficient in React, Redux, Redux Toolkit and Typescript.
• Used Typescript for React Components.
• Unit Testing, Component Testing, and Custom React hook tests with React Testing Library.
• Integration Tests with Cypress.
• Data Fetching libraries like Axios, React Query, RTK Query etc.
• Should have maintained React Components with Storybook.
• Experience contributing to open-source software will be preferred.
• Used various CSS stylings methods like CSS Modules, LESS, SCSS, Tailwind, Styled Components, Emotion etc.
• Should understand Git.
• Ability to work in a fast-paced and dynamic work environment.
• Exceptional interpersonal skills and demonstrated leadership abilities.

Key Responsibilities:

• Develop and maintain the frontend components of the Camera AI and gym & trainer management software.
• Collaborate with UI/UX designers to translate design concepts into functional, responsive web applications.
• Ensure the applications are optimized for performance, scalability, and cross-browser compatibility.
• Implement user interfaces that provide a seamless experience, including real-time data visualization, interactive elements, and responsive design.
• Work closely with backend engineers to integrate APIs and ensure smooth communication between frontend and backend systems.
• Conduct thorough testing and debugging to ensure the stability and performance of the applications.
• Stay up-to-date with the latest trends and best practices in frontend development and apply them to enhance our products.

Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in frontend development.
• Proficiency in HTML, CSS, JavaScript, and modern frontend frameworks such as React, Angular, or Vue.js.
• Experience with responsive design principles and front-end optimization techniques.
• Strong understanding of RESTful API integration.
• Familiarity with version control systems (e.g., Git).
• Ability to write clean, maintainable, and efficient code.
• Excellent problem-solving skills and attention to detail.
• Ability to work collaboratively in a fast-paced, dynamic environment.

Preferred Qualifications:

• Experience working with WebRTC or other real-time communication technologies.
• Familiarity with frontend testing frameworks and tools (e.g., Jest, Cypress).
• Knowledge of UI/UX best practices.
• Experience with Agile development methodologies.

Hi,

Please refer to the below Job description and revert with you updated resume –

About Client: Digital accelerator to Startups, SMEs, MSMEs, and large enterprises with a significant contribution across 22+ industries including BFSI, Healthcare, Ecommerce & Retail, Education & eLearning, Insurance, Tech Startups, Government & Semi-Government, and more. Backed with an impressive experience of 25+ years and a fast-growing family of 4000+ engineering professionals our capabilities span across IT Consulting, Strategy Planning & Execution, Business Process Re-engineering, IT Modernization, and Business Analysis Consulting, our solutions are devised meticulously to address the needs of specific industries.

We are a CMMI Level 5 organization global IT Solution provider and Outsourcing company headquartered in Mumbai and footprints with 10 delivery centres in India and 15 global offices. Our success portfolio boasts of 7500+ projects accomplished across 1500+ clients in 50+ countries with client retention rate as high as 85%

Location: Navi Mumbai, CBD Belapur

Domain: Banking (Payment Gateway Project)

NOTE: 1st and 3rd Saturdays working as per banking norms

Education: B.E. or Graduation in Computer Science or related field

job Summary:

We are seeking a talented and motivated React.js Developer to join our development team. The ideal candidate will be responsible for designing and developing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will ensure that these components and the overall application are robust and easy to maintain.

You will coordinate with the rest of the team working on different layers of the infrastructure, including back-end services and APIs. Therefore, a commitment to collaborative problem-solving, sophisticated design, and quality products is essential.

Key Responsibilities:

Develop new user-facing features using React.js.

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

Optimize components for maximum performance across a vast array of web-capable devices and browsers.

Translate designs and wireframes into high-quality code.

Write clean, scalable, and maintainable JavaScript code.

Ensure the technical feasibility of UI/UX designs.

Collaborate with back-end developers and web designers to improve usability.

Debugging, troubleshooting, and enhancing application performance.

Stay updated with emerging trends and technologies in front-end development.

Skills and Qualifications:

Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.

Thorough understanding of React.js and its core principles.

Experience with popular React.js workflows (such as Flux or Redux).

Familiarity with RESTful APIs and integrating them into front-end code.

Knowledge of modern authorization mechanisms, such as JSON Web Token (JWT).

Familiarity with modern front-end build pipelines and tools (e.g., Babel, Webpack, NPM, etc.).

Experience with code versioning tools such as Git.

Familiarity with browser developer tools and debugging.

Understanding of cross-browser compatibility issues and ways to work around them.

Familiarity with unit testing and testing frameworks (e.g., Jest, Enzyme, Cypress).

Ability to understand business requirements and translate them into technical requirements.

Preferred Qualifications:

Bachelor's degree in Computer Science, Software Engineering, or a related field.

Experience with TypeScript and GraphQL.

Experience with other JavaScript frameworks like Next.js or Gatsby.js.

Familiarity with CI/CD pipelines and containerized applications (e.g., Docker).

Good understanding of SEO principles and ensuring that application adheres to them.

Soft Skills:

Strong problem-solving skills and attention to detail.

Excellent communication and teamwork abilities.

Ability to work in a fast-paced environment and meet deadlines.

Open to learning new technologies and frameworks.

• Deep understanding of JS basics and advanced features (ES6) (5+ years)
• Deep understanding of basic and advanced HTML5 / CSS3 features (5+ years)
• Hands on experience developing scalable applications using React JS (preferably using functional components) (2+ years)
• Proficiency in using hooks based approach in react development
• Hands on experience developing UI components using Material UI for React JS (2+ years)
• Experience with any of the state management libraries for React JS – Redux, Context API, Mobx etc
• Experience with unit testing using Jest, Enzyme, React Testing Library etc
• Experience with responsive design, progressive web apps and accessibility.
• Knowledge about platform tools such as NPM, Git command line tool and AWS.

• Our engineers are involved in all parts of the product lifecycle: brainstorming, design,prototyping, planning, execution, and deploying.
• We brainstorm to understand and explore the difficult problem and come up with the best solution for the hardest problems that impact the world.
• You will develop broad-ranging skills working on a wide variety of initiatives. You will take responsibility for your projects, but you'll also have teammates who look out for you.
• We operate in a “get s**t done” environment where the goal is always to execute and implement. While doing all of this...You will not forget to have fun!

WHAT WE VALUE

• You're cool with working with others. Our jobs aren’t done in a vacuum and everyone contributes to get the job done.
• You’re not afraid to make mistakes because without challenge, you’re not learning.
• Speaking of learning, you have a constant desire to grow and develop.
• You care about great design, not only in the product and visual sense, but also in your code and technical architecture.
• You are passionate about product craftsmanship, and can balance that with deploying something relevant.
• You move fast with a sense of urgency. You want to work on things that make an impact on the world.

DESIRED EXPERIENCE

• Candidate Expectations: Design, code, deploy and maintain scalable software infrastructure to meet Blowhorn's demands.
• 3+ years’ experience in a start-up environment or any reputed product based company
• Build APIs for business clients to integrate blowhorn into their systems.
• Setup processes and methodology for sustainable software development.

DESIRED SKILLS

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Good understanding of JS frameworks (AngularJS, ReactJS, VueJS), Angular 5+ and Bootstrap.
• Proficient understanding of web markup, including HTML5, CSS3
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Some exposure to Analytics/Dashboard and related client frameworks (D3.js, Apache superset)
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Has worked extensively on Google maps and features like live tracking, geo fencing
• Good API integration skills (with backend frameworks)
• Mobile frameworks like Flutter is a plus
• Collaborate with other team members and stakeholders
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as Gimp or Photoshop is a plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of code versioning tools, such as (Git / Mercurial / SVN)
• Good understanding of SEO principles and ensuring that application will adhere to them.

We are looking for a great JavaScript developer with experience in the range of 2 to 6 years, who is proficient in frontend techlogies with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.

We are hiring 2 ReactJS Developers. Candidates having experience of working on charts/graphs like d3.js, chart.js will have an added advantage.

Selection Criteria
If your profile has selected then you have to attend a 5 hours assignment to move your candidature to the final round of interview.

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
•  

Technical Skills

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Thorough understanding of React.js and its core principles

• Experience with popular React.js workflows (such as Flux or Redux)

• Familiarity with newer specifications of EcmaScript

• Experience with data structure libraries (e.g., Immutable.js)

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs

• Knowledge of modern authorization mechanisms, such as JSON Web Token

• Familiarity with modern front-end build pipelines and tools

• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

• Ability to understand business requirements and translate them into technical requirements

• A knack for benchmarking and optimization

• Familiarity with code versioning tools such as Git.

• Developing and implementing highly responsive UI
• Design software with great UX
• Produce clean and efficient code
• Troubleshoot, debug and upgrade existing software
• Management of entire end-to-end project pipeline

• Strong working knowledge of React JS and Redux
• Experience with JavaScript and CSS
• Experience with REST APIs
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Git knowledge is a plus
• Comfortable in working in Linux based environment

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model 
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows for state management (such as Redux/Mobx)
• Familiarity with RESTful APIs 
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc. 
• Ability to understand business requirements and translate them into technical requirements 
• A knack for benchmarking and optimization 
• Experience in Python or Java/Kotlin development