React.js Developer

• Design, develop, and unit test applications in accordance with established standards.
• Preparing reports, manuals and other documentation on the status, operation and maintenance of software.
• Analyzing and resolving technical and application problems
• Adhering to high-quality development principles while delivering solutions on-time
• Providing third-level support to business users.
• Compliance of process and quality management standards
• Understanding and implementation of SDLC process

Ideal Candidate

• Strong Senior Angular Developer Profiles.
• Mandatory (Experience 1) – Must have 6+ years of experience in frontend development, with at least 4+ years in Angular 8+.
• Mandatory (Experience 2) – Must have strong proficiency in JavaScript, TypeScript, HTML5, and CSS3.
• Mandatory (Experience 3) – Must have strong test-driven development experience and proficiency in unit testing frameworks such as Jasmine, Karma, NUnit, Selenium.
• Mandatory (Experience 4) – Must have strong experience in database technologies (MySQL / SQL Server / Oracle)
• Mandatory (Note) - Considering candidates from South India only.
• Preferred (Experience 1) – Must have 2+ experience with Web APIs, Entity Framework, and Linq Queries.
• Preferred (Experience 2) – Experience in .NET Core framework, OOP, and C# APIs.
• Preferred (Company) - Product Companies
• Preferred (Education) – B.Tech./M.Tech in Computer Science (or related field).

Frontend Engineer

React, TypeScript & Production Web Applications

📍 Mumbai (On-site) | Full-time | 3-5 years

About the Role:

Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies.

We are hiring a Frontend Engineer who will build production-grade web applications across customer engagements, partnering closely with designers, backend engineers, and AI engineers.

The mandatory requirement for this role is hands-on production experience shipping React applications, with ownership of at least one feature area end to end including state, API integration, and testing.

The role is hands-on.

Expect to implement complex flows, integrate with backend and AI services, contribute to a shared design system, write tests, and review the work of others.

A typical week includes a design handoff review, implementation of a new flow, a code review session, and a working call with a backend engineer on API contracts.

Responsibilities:

Production UI Development

Build production-grade React UI for customer engagements, including complex forms, dashboards, data-dense views, and AI-driven interactions.

API Integration

Integrate with REST and GraphQL APIs.

Handle authentication, streaming responses (Server-Sent Events, WebSockets), retries, and graceful error states.

State Management

Build state architecture using Redux, Zustand, Jotai, or equivalent.

Handle async state, optimistic updates, and cross-component coordination.

Design System Contribution

Implement components within an established design system.

Maintain token discipline and contribute back to shared components.

Testing

Write unit, integration, and end-to-end tests using Jest, React Testing Library, and Playwright or Cypress.

Performance and Accessibility

Profile and optimise rendering and bundle size.

Apply WCAG 2.1 AA practices in everyday work.

AI-Assisted Development

Use Claude, Cursor, and similar tools day to day.

Build discipline for reviewing and validating AI-generated code.

Requirements:

Hands-on Production React Experience (Mandatory)

Must have personally shipped at least one feature area end to end in a production React application, owning state, API integration, and testing.

POCs and internal tools alone do not qualify.

3 to 5 Years of Professional Frontend Engineering Experience

Strong JavaScript, TypeScript, and React

Solid with hooks, context, and modern patterns.

Working comfort with Next.js (SSR, SSG, app router).

State Management

Production experience with Redux, Zustand, Jotai, or equivalent.

CSS and Styling

Strong with Tailwind, CSS Modules, or CSS-in-JS.

Comfortable building responsive layouts.

REST and GraphQL

Comfortable consuming both.

Working knowledge of streaming responses and async patterns.

Testing Fluency

Jest, React Testing Library, and at least one of Playwright or Cypress.

Git and CI/CD Basics

Comfortable with feature branching, pull requests, and CI-integrated test runs.

Strong Written and Spoken English Communication

Nice to Have:

• Experience with editor or canvas UIs
• Storybook
• Animation libraries (Framer Motion, GSAP)
• Exposure to AI-driven UI patterns
• Visual regression testing tools

About Deqode

At Deqode, we work on cutting-edge solutions that are redefining the digital frontier. Our team thrives on innovation, collaboration, and creating next-gen products that solve real-world problems. We are now looking for a skilled and passionate React.js Developer to join our growing frontend team.

Roles & Responsibilities

• Take complete ownership and delivery of front-end applications.
• Ensure optimized performance across mobile and desktop platforms.
• Write clean, tested, and well-documented code using JavaScript, HTML, and CSS.
• Collaborate with UI/UX designers, HTML coders, and backend developers to bring designs to life.
• Integrate RESTful APIs and work seamlessly with backend teams.
• Communicate and integrate with third-party web services.
• Build and manage infrastructure for serving frontend apps and assets.
• Maintain frontend application deployment and ensure build pipeline automation.
• Use JSDoc or similar tools for inline documentation of code.
• Write extensive unit tests following Test-Driven Development (TDD) best practices.
• Design and automate the frontend build process using tools like Webpack/Gulp/Grunt.

Required Skills & Qualifications

• 3+ years of experience developing production-level web applications.
• Strong command over React.js or Vue.js, JavaScript, HTML5, CSS3.
• Deep understanding of DOM APIs, native JavaScript, and popular libraries.
• Proficiency in CSS preprocessors (SASS/LESS) and modular CSS (CSS Modules).
• Familiarity with build tools like Webpack, Gulp, or Grunt.
• Experience creating modular, self-contained, and reusable components.
• Strong understanding of cross-browser compatibility and performance optimizations.
• Clean, organized, and maintainable code practices.
• Bonus: Working knowledge of Node.js and backend concepts like APIs, databases, caching layers, and proxies.
• Comfort in implementing pixel-perfect designs, animations, and smooth transitions.
• Excellent communication and teamwork skills.
• A proactive mindset with the ability to work both independently and in a team.

Job Description

We are looking for a Senior Fullstack Engineer who is an expert on the Javascript stack (Node.js and React). We are looking for engineers who work like owners as you will be tasked with leading the development of one of our 5 major components of the Hatica platform. You will work with experienced engineers and on a modern serverless stack built using Javascript (React and Node) and Golang with a in-house realtime data analytics engine on Postgres and Elasticsearch among others.

Responsibilities

• Work across the Javascript stack from React.js in the front to Node.js in the back.
• Help your fellow DevOps and junior engineers working on our cloud infrastructure and other components of our product to ensure a code quality and robust architecture.

Requirements and Qualifications

• BE/BTech in Computer Science or Engineering
• Minimum Experience of 4 years with backend development.
• Experience of at least 2 years with Node.js
• Minimum Experience of 2 years with front end development in React
• Familiarity with newer specifications of EcmaScript
• Understanding of GraphQL
• Understanding of AWS and cloud-native technologies is preferred

Benefits

• Work with the best and brightest on a global cutting-edge SaaS product
• Performance oriented culture built on fairness and inclusivity
• Competitive Compensation
• Flexible work hours
• Fully remote team, work from anywhere

Senior Software Engineer, Frontend

https://www.alivecor.com/">AliveCor, the pioneer of the smartphone EKG, with millions of EKGs from a large and growing user base, seeks a Senior Software Engineer (Front-end Applications) to contribute to the Applications team. You will be an integral member of our engineering team, responsible for developing industry-leading web applications that transform the healthcare industry and affect the way consumers use, engage, and act on their health data.

• Passionate about User Experience.
• Has great verbal and written communication skills to engage directly with your peers.
• Understands and is thoughtful about engineering trade-offs
• Experience building web applications with cross-browser support and RESTful API integrations
• Commitment to delivering results.
• Passionate about continuous improvement.

• B.E in Computer Science or a related discipline, or related practical experience.
• 5-8 years of Frontend development experience with at least 2 years working as a React.js Developer.
• A strong grasp of software engineering and web application development fundamentals, including JavaScript (ES5, ES6), HTML and CSS.
• Aptitude to learn new technologies (e.g. ES.Next).
• Excellent troubleshooting skills.
• Familiarity with RESTful APIs to connect the Front-end applications to backend service
• Bonus points for:
• Publicly available web applications, portfolios, or examples available on a source repository (e.g. GitHub, GitLab, Bitbucket)
• An interest in data visualizations using JavaScript libraries such as D3, Highcharts, and others
• Experience managing front end tooling (e.g. gulp, grunt, webpack, post-CSS, service workers)
• Experience with performance analysis and tuning of web application
• Experience developing back end server APIs and/or server-side rendering

AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.

AliveCor is an equal opportunity employer and will not discriminate against any employee or applicant on the basis of age, colour, disability, gender, national origin, race, religion, sexual orientation, or any other classification protected by federal, state, or local law.

Watch the following video demonstrating our product.

https://www.youtube.com/watch?v=8I9xosgA-Ig">KardiaMobile: How's your heart?
https://www.youtube.com/watch?v=8I9xosgA-Ig