Senior UI Developer /UI lead

About NonStop io Technologies:

NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud

group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment

Brief Description:

NonStop io is seeking a proficient React.js developer to join our front-end development team. In this position, you’ll be mainly crafting and integrating UI components through React.js methodologies and workflows like Mobx and Redux.

Responsibilities:

● Developing and implementing UI components using React.js

● Collaborating with cross-functional teams to design and ship new features

● Building reusable components and front-end libraries for future use

● Translating designs and wireframes into high-quality code

● Optimizing components for maximum performance across various web browsers

● Troubleshooting and debugging issues to ensure smooth user experiences

● Participating in code reviews to maintain code quality and consistency

● Improvement and optimization of existing codebase

● Keeping up with industry trends

● Identifying issues with technologies and architecture and then implementing solutions

● Assist with ticket creation, refinement, and estimation

● Participate in sprint planning and ticket distribution for frontend team

Qualifications & Skills:

● Proficiency in React.js and its core principles

● Strong JavaScript, TypeScript, HTML5, and CSS3 skills

● Experience with popular React.js state management libraries and approaches (such as Mobx, Redux, and Context API)

● Familiarity with RESTful APIs and integration

● Knowledge of modern authorization mechanisms, such as JSON Web Tokens

● Understanding of front-end build tools and pipelines

● Familiarity with any one of backend technologies such as Node.js, Java, or Python

● Excellent problem-solving and communication skills

● A strong attention to detail, and a passion for delivering high-quality code

● Expertise in designing scalable and efficient front-end architecture

● Adaptability to changing project requirements and priorities

● Experience with version control systems, particularly Git

● Experience working in Scrum and familiarity with Atlassian (Jira, Confluence, Bitbucket)

● Experience with diverse applications and architectural patterns

● A degree in computer science, software engineering, or a related field

● Strong understanding of object-oriented programming principles and design patterns

● Familiarity with automated testing frameworks and methodologies

● Excellent problem-solving skills and attention to detail

● Strong communication skills and ability to work effectively in a collaborative team environment

● Ready to be a tech-agnostic engineer and comfortable to shift on any tech stack

● Comfortable working with AI (Claude code, Cursor etc)

If you're passionate about technology and want to work on impactful projects, we'd love to hear from you

NEED TO HAVE :

1) Have some knowledge of front end like React.JS

2) HTML, CSS

3) Strong in JavaScript concepts

4) Good communication skills

5) Loves to code

GOOD TO HAVE :

1) Experience with type script will be a plus

2) Experience with Nest.JS framework will be a plus

3) Strong hold on ES6 principles.

4) Familiar with TDD ( Test Driven Development ) will be a plus.

5) Familiar with working in CI / CD will be a plus

6) Micro-Service architecture knowledge will be an added benefit.

You can contact me on this WhatsApp number: Nine three one six one two zero one three two

Job Description – UI Developer

Location: Bangalore

Experience: 6+ Years

Technology: UI, Angular 15+, JavaScript, TypeScript, Microfrontend

Key Responsibilities:

• Develop and maintain responsive web applications using Angular 15+, JavaScript, and TypeScript.
• Design and implement scalable Microfrontend architecture for enterprise applications.
• Build reusable UI components and integrate REST APIs and backend services.
• Collaborate with UI/UX designers, backend developers, and other technical teams.
• Optimize application performance, code quality, and browser compatibility.
• Troubleshoot and resolve application issues and participate in code reviews.
• Follow Agile development practices and contribute to the complete software development lifecycle.

Required Skills:

• 6+ years of experience in UI/Web Application Development.
• Strong hands-on experience with Angular 15 or above.
• Strong knowledge of JavaScript and TypeScript.
• Experience working with Microfrontend architecture.
• Good understanding of HTML5, CSS3, responsive design, and REST APIs.
• Experience with Git and Agile/Scrum methodologies.
• Strong problem-solving and communication skills.

Location: Bangalore / Bengaluru

Experience: 6+ Years

Role Summary

The Senior Front-end Developer builds and maintains client-facing interfaces per UI/UX designs and product requirements, owns front-end architecture and code-review standards, and mentors the Junior Front-end Developer. This is a specialized front-end role, not a full-stack position.

Key Responsibilities

•   Own front-end architecture decisions, including framework, state management, and tooling choices.

•   Set and enforce code-review, testing, and performance/accessibility standards for the pod.

•   Lead implementation of complex, high-visibility features.

•   Troubleshoot and resolve complex front-end performance or technical issues.

•   Mentor the Junior Front-end Developer, including code review and skill development.

•   Partner closely with UI/UX to ensure design fidelity and flag implementation constraints early.

•   Evaluate and recommend front-end tooling or library upgrades.

Required Skills & Technical Competencies

•   Deep expertise in a modern front-end framework (React strongly preferred) and associated ecosystem.

•   Strong understanding of front-end performance optimization and accessibility standards.

•   Experience owning front-end architecture for a production application.

Targeted Qualifications

•   5–8 years of front-end development experience.

•   Deep expertise in a modern framework (React preferred) and front-end architecture patterns.

•   Experience owning performance and accessibility standards.

•   Bachelor's degree in Computer Science or related field.

Preferred / Nice-to-Have

•   Experience with data-dense or real-time dashboard interfaces (relevant to IoT products).

•   Experience mentoring junior developers formally.

Job Summary

We are looking for an experienced Frontend Developer / Angular Developer with 5+ years of hands-on experience in building responsive, scalable, and high-performance web applications. The ideal candidate should have strong expertise in Angular, TypeScript, JavaScript, HTML, CSS, along with a good understanding of Java-based backend applications and REST APIs.

Key Responsibilities

• Design, develop, and maintain responsive web applications using Angular.
• Build reusable, scalable, and maintainable UI components.
• Develop clean and efficient code using TypeScript, JavaScript, HTML5, and CSS3.
• Integrate frontend applications with RESTful APIs and Java-based backend services.
• Collaborate with backend developers, UI/UX designers, QA engineers, and business teams.
• Troubleshoot, debug, and optimize application performance.
• Implement responsive designs and ensure cross-browser compatibility.
• Participate in code reviews and follow coding and development best practices.
• Write unit tests and support integration and system testing.
• Analyze production issues and provide effective technical solutions.
• Contribute to application architecture and technical design discussions.

Required Skills

• 5+ years of professional software development experience.
• Strong hands-on experience with Angular.
• Strong knowledge of TypeScript and JavaScript.
• Good understanding of HTML5, CSS3, and responsive web development.
• Experience with Angular components, services, directives, routing, forms, RxJS, and state management.
• Experience integrating REST APIs.
• Good understanding of Java / Spring Boot and backend application integration.
• Knowledge of Git and standard software development practices.
• Experience with debugging, performance optimization, and browser developer tools.
• Good understanding of Agile/Scrum development methodologies.

Good to Have

• Experience with Angular Material or other UI frameworks.
• Knowledge of Java, Spring Boot, Microservices, and SQL.
• Experience with Jasmine/Karma or Jest.
• Exposure to CI/CD pipelines and cloud platforms.
• Knowledge of application security and frontend performance optimization.

Job Summary –

UI developer having strong hands-on experience in developing and managing scalable, secure and responsive front-end applications in an Agile development environment, including Micro Frontend (MFE) architecture and integration with APIs and microservices. Must have good working experience in an offshore development team based out of India. Must have prior experience in customer facing role.

Years of experience needed –

Candidate experience – Minimum 6 years

Technical Skills:

·        Must have strong hands-on experience in Angular 15 or above, TypeScript, JavaScript, HTML5, CSS3 and modern UI technologies. Extensive knowledge on below topics

-         Life Cycle Hooks, Modules, Decorators, Directives, Services, Dependency Injection, Reactive Forms, Types of Data Binding, Basics of Routing, Route Guards, Lazy Loading, Basics of Pipes and Custom Pipes, Interceptors, Observables, Promises, Operators, Subscriptions, Subjects, State Management, JS event loop execution process for async functions, TypeScript, Error Handling, Compilers.

-         Strong knowledge of Node Package Manager (NPM), package management, dependency management, build scripts and front-end build processes.

-         Hands-on experience in Micro Frontend (MFE) architecture, reusable UI component design, modular application development and integration of independently deployable front-end modules.

-         Good understanding of microservices architecture and experience integrating UI applications with microservices through RESTful APIs.

-         Experience in API consumption and UI integration, including request and response handling, authentication, authorization, error handling and secure data exchange.

-         Good understanding of web application security concepts, including secure coding practices, route protection, token-based authentication, CORS, prevention of XSS and CSRF vulnerabilities, and secure storage of sensitive information.

-         Experience in responsive web design, cross-browser compatibility, accessibility standards and performance optimization of UI applications.

·        Must have good experience in writing unit test cases using Jasmine and Karma.

·        Good knowledge and experience in Agile Development.

·        Must possess good design thinking, technical problem-solving skills.

·        Must have strong knowledge in any of the source code version tool like GIT or GitLab or GitHub etc.

Job Summary –  

UI developer having strong hands-on experience in developing and managing scalable, secure and responsive front-end applications 

in an Agile development environment, including Micro Frontend (MFE) architecture and integration with APIs and microservices.  

Must have good working experience in an offshore development team based out of India.  Must have prior experience in customer 

facing role. 

Years of experience needed –  

Candidate experience – Minimum 6 years 

Technical Skills:  

∙Must have strong hands-on experience in Angular 15 or above, TypeScript, JavaScript, HTML5, CSS3 and modern UI 

technologies. Extensive knowledge on below topics 

-Life Cycle Hooks, Modules, Decorators, Directives, Services, Dependency Injection, Reactive Forms, Types of Data 

Binding, Basics of Routing, Route Guards, Lazy Loading, Basics of Pipes and Custom Pipes, Interceptors, 

Observables, Promises, Operators, Subscriptions, Subjects, State Management, JS event loop execution process 

for async functions, TypeScript, Error Handling, Compilers. 

-Strong knowledge of Node Package Manager (NPM), package management, dependency management, build 

scripts and front-end build processes. 

-Hands-on experience in Micro Frontend (MFE) architecture, reusable UI component design, modular application 

development and integration of independently deployable front-end modules. 

-Good understanding of microservices architecture and experience integrating UI applications with microservices 

through RESTful APIs. 

-Experience in API consumption and UI integration, including request and response handling, authentication, 

authorization, error handling and secure data exchange. 

-Good understanding of web application security concepts, including secure coding practices, route protection, 

token-based authentication, CORS, prevention of XSS and CSRF vulnerabilities, and secure storage of sensitive 

information. 

-Experience in responsive web design, cross-browser compatibility, accessibility standards and performance 

optimization of UI applications. 

∙Must have good experience in writing unit test cases using Jasmine and Karma. 

∙Good knowledge and experience in Agile Development.  

∙Must possess good design thinking, technical problem-solving skills. 

∙Must have strong knowledge in any of the source code version tool like GIT or GitLab or GitHub etc. 

∙Good to have - Cloud technologies in Pivotal Cloud Foundry. 

.  

Certifications Needed:  

Certifications are not mandatory. Good to have certifications in UI technologies, Artificial Intelligence (AI), .NET, or a relevant cloud 

platform such as Microsoft Azure, AWS or Google Cloud Platform (GCP). 

Job Description:

https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link

Role Description

This is a full-time role for a React.js Developer who will be responsible for developing, maintaining, and optimizing responsive and scalable web applications. The successful candidate will work closely with UI/UX designers, backend developers, and product teams to convert designs and requirements into high-quality, production-ready applications. The role requires strong problem-solving skills, attention to detail, and the ability to take ownership of features from development through deployment.

Key Responsibilities

• Develop responsive and scalable web applications using React.js.
• Build reusable and maintainable frontend components.
• Convert UI/UX designs and Figma prototypes into functional web interfaces.
• Integrate frontend applications with REST APIs and backend services.
• Manage application state using Redux, Context API, Zustand, or similar technologies.
• Optimize applications for performance, responsiveness, and scalability.
• Debug and resolve frontend issues across development and production environments.
• Ensure cross-browser and cross-device compatibility.
• Collaborate with UI/UX designers, backend developers, QA, and product teams.
• Participate in code reviews and follow clean coding and development practices.
• Write and maintain appropriate tests for frontend applications.
• Stay updated with modern frontend technologies and best practices.
• Take ownership of features from development and testing through deployment and maintenance.

Requirements

• Strong proficiency in JavaScript (ES6+) and React.js.
• Good understanding of React Hooks, component architecture, props, state, and Context API.
• Strong knowledge of HTML5 and CSS3 and responsive web development.
• Experience integrating REST APIs and working with JSON.
• Experience with state management libraries such as Redux, Zustand, or similar.
• Experience with Git and GitHub/GitLab.
• Understanding of frontend performance optimization and browser debugging.
• 3+ years of hands-on experience in frontend development with React.js.
• Experience with TypeScript and Next.js is preferred.
• Familiarity with UI libraries such as Tailwind CSS, Material UI, or similar is a plus.
• Experience with frontend testing tools such as Jest, Vitest, or React Testing Library is a plus.
• Good problem-solving and analytical skills.
• Strong communication and collaboration skills.
• Ability to work independently, prioritize tasks, and meet deadlines.
• A proactive approach to learning and solving technical problems.

Candidates with strong practical experience, personal projects, GitHub contributions, or demonstrable frontend work may also be considered in place of extensive professional experience.

Key Responsibilities

Frontend & Extension Development

• Build and maintain highly responsive, modern user interfaces using React.js for web applications, browser extensions, and Electron-based desktop clients.

• Architect and develop modular, reusable UI components using Material-UI (MUI / Joy UI) and styled-components/Emotion.

• Manage complex multi-target build pipelines (Web, Extension, Electron) using Webpack and Craco.

AI Integration & Engineering

• Seamlessly integrate Generative AI capabilities into the frontend, including AI-driven chatbots, contextual AI suggestions, and RAG (Retrieval-Augmented Generation) interfaces.

• Collaborate closely with backend and AI specialists to consume AI-powered REST APIs and WebSocket streams, ensuring fluid and responsive user experiences.

• Implement robust markdown and code rendering (e.g., react-markdown) for rich AI conversational outputs.

Real-Time Data & State Management

• Implement low-latency, real-time communication features using Socket.IO for chat and collaborative functions.

• Efficiently manage complex application state, data fetching, and caching using modern tools like React Query and Axios.

Quality & Collaboration

• Work within a monorepo/workspace structure to maintain distinct client, component, and extension packages.

• Participate in code reviews to maintain high code quality, performance, and enterprise security standards.

• Collaborate with teams using Agile/Scrum methodologies for rapid and structured delivery.

Required Skills:

• Core Languages: Proficiency in JavaScript (ES6+) and TypeScript.

• Frontend Frameworks: Strong, hands-on experience with React.js (Hooks, Context), React Query, and React Router.

• Styling & UI: Deep understanding of HTML5, CSS3, and CSS-in-JS libraries (e.g., styled-components, react-jss). Hands-on experience with MUI (Material UI / Joy UI) is highly preferred.

• Architecture & Build: Experience configuring and optimizing builds with Webpack and Craco. Familiarity with npm workspaces/monorepos.

• Real-time & APIs: Ability to design and implement robust client-side integrations with RESTful APIs and WebSockets (Socket.IO).

• Agile & Workflow: Experience working with Agile and Scrum methodologies.

Preferred/Bonus Skills:

• Experience in building and packaging Browser Extensions and/or Electron applications.

• Genuine curiosity and awareness of Generative AI workflows (e.g., prompt engineering concepts, handling streaming AI responses).

• Experience with rich text editing or markdown rendering in React.