Fullstack Developer

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

Qualification profile

• Successfully completed studies or training in computer science, focus on software development desirable or comparable qualification
• In-depth knowledge of web technologies: JAVA, HTML5, CSS, Java/TypeScript, and Vue.js, as well as web services/SOA Hibernate and SQL
• In-depth knowledge of React and/or Angular is also an advantage
• Experience with responsive web design and web content management systems
• Fluent in English
• Knowledge of cloud-native development and operation, e.g. B. Docker and Kubernetes advantageous

What we offer you

• Varied, demanding, and interesting field of activity
• Flexible working hours to reconcile work and private life
• Collegial and highly professional team in a modern, international working environment
• Career opportunities here in India or worldwide

• - Contribute to a full development life cycle, including: requirements analysis, functional design, technical design, programming, testing, documentation, implementation, and on-going technical support.
• - Work closely with the existing team to learn the current application architecture, design and understand its functionalities and complexities.
• - Bridge the gap between graphic design and backend technical implementation
• - Build modular, responsive templates using modern CSS techniques
• - Translate UI/UX design wireframes to actual code
• Testing cross-browser, cross-platform, and/or cross-device compatibility for inconsistencies.

• - 2+ years of industry experience as a Front End Developer Engineer
• - Degree in Computer Science or related field
• - Experience with developing web and mobile applications
• - Extensive knowledge HTML5 / CSS3 / JavaScript / jQuery / Bootstrap / ReactJS, AngularJS
• - Strong experience in JSON/XML and REST/SOAP based Web Service based integration.
• - Experience (mandatory) with working Web Framework versions with exposure to creating components and handling AJAX calls.
• - Good to have knowledge in JIRA, GIT.
• - Strong knowledge of Client-Server Architecture.
• - Basic Proficiency with Python or relevant back-end scripting language
• - Ability to think critically and creatively in a dynamic environment, while picking up new tools and domain knowledge along the way

• - A positive attitude, and a growth mindset
• - Great attention to details

• - Experience with API testing software (e.g. Postman)
• - Good Humor

We are looking for a qualified WordPress Front-end developer to join our IT team. You will be responsible for building the ‘client-side’ of our web applications. You should be able to translate our company and customer needs into functional and appealing interactive applications.

• WordPress front-end development using HTML, CSS, JavaScript, jQuery to create user-friendly web pages

• Experience or in-depth knowledge about the theme customization

• Experience in implementing basic security for websites & plugin understanding

• Maintain and improve website

• Optimize applications for maximum speed

• Design mobile-based features

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

• Get feedback from, and build solutions for, users and customers

• Write functional requirement documents and guides

• Create quality mockups and prototypes

• Help back-end developers with coding and troubleshooting

• Ensure high-quality graphic standards and brand consistency

• Stay up-to-date on emerging technologies
  
  

• Proven work experience as a Front-end developer

• Hands-on experience with markup languages

• Experience with WordPress, JavaScript, CSS, SASS, and jQuery

• Familiarity with browser testing and debugging

• Experience with responsive and adaptive design.

• In-depth understanding of the entire web development process (design, development, and deployment)

• Understanding of layout aesthetics

• Knowledge of SEO principles would be the cherry on the cake!

SDE-II (FE)

Responsibilities

• Gather functional requirements from product management/UX teams and translate requirements into technical specifications to build robust, scalable, supportable solutions
• Serve as technical lead throughout the full development lifecycle, end-to-end, from scoping, planning, conception, design, implementation and testing, to documentation, delivery and maintenance. 
• Provide design reviews for other engineers, including feedback on architecture and design issues, as well as integration and performance. 
• Manage resources on multiple technical projects and ensure schedules, milestones, and priorities are compatible with technology and business goals.
• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Collaborate with other team members and stakeholders

Requirements

• 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
• Good understanding of AngularJS, ReactJS
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as as Gimp or Photoshop is a plus.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of git
• Good understanding of SEO principles and ensuring that the application will adhere to them.
• BTech/BE Equivalent.
• 3-5 years of experience

React Native / React JS Developer

We're looking for a React Native Developer to join our growing frontend team. As a React Developer, you will help develop the next generation of our apps using tools such as React.js, Redux, Enzyme, and Webpack. You should be familiar with React and its ecosystem. 

Responsibilities

- Actively aid the consulting team in different phases of the project including problem definition, effort estimation, diagnosis, solution generation, design develop and deployment.,

- Contribute to unit-level and organizational initiatives.,

- Adherence to the organizational guidelines and processes

- Design, build and maintain efficient, reusable, and reliable codes by setting expectations and features priorities throughout the development life cycle

Requirement

- 2+ years' experience working with a Javascript framework, React Native, ReactJS, Typescript, Node JS

- In-depth understanding of Javascript, the DOM, and relevant concepts

- Must have experience in Web services, Web API, REST services, HTML, CSS3

- Proficiency with browser-based debugging and performance testing

- Identify bottlenecks and bugs, and recommend system solutions by comparing advantages and disadvantages of custom development.

- Contributing to team meetings, troubleshooting development, and production problems across multiple environments and operating platforms.