Frontend Developer

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

Job Title: Senior React.js Developer (Immediate Joiner)

Location: Bangalore

Experience: 5+ Years

About the Role

We are looking for a skilled React Developer with 5+ years of experience to join our team immediately. The ideal candidate should have strong expertise in React.js along with a basic understanding of Angular. You will be responsible for developing user interface components and implementing them following well-known React workflows.

Key Responsibilities

• Develop and maintain responsive web applications using React.js
• Build reusable components and front-end libraries for future use
• Translate UI/UX designs into high-quality code
• Optimize applications for maximum performance across devices and browsers
• Collaborate with backend developers and cross-functional teams
• Participate in code reviews and ensure best practices are followed
• Assist in debugging and resolving technical issues
• Work on minor enhancements or support tasks in Angular-based modules (if required)

Required Skills & Qualifications

• 5+ years of hands-on experience in React.js development
• Strong proficiency in JavaScript, HTML5, CSS3
• Experience with state management libraries (Redux / Context API)
• Familiarity with RESTful APIs and integration
• Basic knowledge or exposure to Angular
• Understanding of responsive design and cross-browser compatibility
• Good problem-solving and communication skills

Preferred Skills

• Experience with TypeScript
• Knowledge of modern front-end build pipelines and tools (Webpack, Babel, etc.)
• Familiarity with version control systems like Git

Joining Requirement

• Immediate joiners or candidates with short notice period (0–15 days) preferred

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
• Staying up-to-date with the latest industry trends and technologies
• Troubleshooting and debugging issues to ensure smooth user experiences
• Participating in code reviews to maintain code quality and consistency

Required React developer requirements, qualifications & skills:

• Proficiency in React.js and its core principles
• Strong JavaScript, HTML5, and CSS3 skills
• Experience with popular React.js workflows (such as Redux)
• Familiarity with RESTful APIs and integration
• Knowledge of modern authorization mechanisms, such as JSON Web Tokens
• Understanding of front-end build tools and pipelines
• Excellent problem-solving and communication skills
• A strong attention to detail, and a passion for delivering high-quality code
• Adaptability to changing project requirements and priorities
• Experience with version control systems (e.g., Git)
• A degree in computer science, software engineering, or a related field

We have an existing academic journal publishing and management platform developed using:

• Next.js
• React
• Node.js
• PostgreSQL
• REST APIs

The platform is already functional and includes author, reviewer, editorial and admin workflows.

We are looking for an experienced Senior Next.js Developer / Frontend Tech Lead to work on an existing production application.

The primary requirement is to redesign and rebuild the frontend while reusing the existing backend, APIs, database and business logic wherever technically feasible.

This is not a greenfield project and we do not want unnecessary rewriting of the existing backend.

Key Responsibilities

• Study and understand the existing Next.js application and architecture.
• Review existing APIs and backend integration.
• Develop a completely redesigned, professional academic/publishing frontend.
• Convert Figma designs into clean, responsive Next.js interfaces.
• Integrate the new frontend with existing Node.js APIs.
• Maintain existing workflows and functionality.
• Work on author, reviewer, editor and admin dashboards.
• Develop responsive interfaces for desktop, tablet and mobile.
• Improve frontend performance, usability and maintainability.
• Ensure proper authentication and role-based access handling.
• Identify frontend/backend dependencies that may require minor backend changes.
• Follow clean coding standards and reusable component architecture.
• Work through Git with proper commits, branches and code reviews.
• Coordinate with UI/UX designer and QA during development.
• Ensure the redesigned application is production-ready.

Existing Modules

The existing platform includes functionality such as:

• Author registration/login
• Manuscript submission
• Manuscript tracking
• Peer-review workflow
• Reviewer dashboard
• Editorial workflow
• Publication processing
• Payment-related workflows
• Article/publication management
• Journal management
• Certificates
• Referral/credit functionality
• Admin dashboard
• Reports and operational dashboards

The exact modules and workflows will be provided during the project.

Required Skills

Must Have

• 4+ years of professional React/Next.js experience
• Strong Next.js knowledge
• React + TypeScript
• JavaScript/TypeScript
• REST API integration
• HTML/CSS
• Responsive design
• Git/GitHub/GitLab
• Experience working with existing production codebases
• Good understanding of authentication and authorization
• Ability to understand backend APIs and database relationships

Good to Have

• Node.js
• PostgreSQL
• Tailwind CSS
• Next.js App Router
• Dashboard/SaaS application development
• Experience with complex multi-role applications
• Experience with academic, publishing, research or workflow-based platforms

What We Are Looking For

We are looking for someone who can understand an existing application before changing it.

You should be comfortable working with an existing codebase rather than expecting to rebuild everything from scratch.

Strong attention to:

• UI quality
• UX
• Performance
• Clean architecture
• Reusable components
• Security
• Cross-browser compatibility
• Maintainability

is required.

Important

• Existing backend and database should be reused wherever possible.
• Do not rewrite existing functionality without approval.
• Existing production data must not be modified or exposed.
• Development will be performed in a staging environment.
• Git-based development is mandatory.
• NDA and confidentiality agreement will be required.
• Ownership of the developed code and project deliverables will belong to the company.

Selection Process

Shortlisted candidates will first be asked to:

1. Review the existing application architecture.
2. Understand the existing APIs and workflows.
3. Identify what can be reused and what needs modification.
4. Complete a small paid technical task.
5. Discuss the proposed development approach and timeline.

Candidates who demonstrate strong understanding of the existing system will be preferred.

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

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 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

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.

About the Role

We are seeking motivated and enthusiastic Frontend Developer Interns to join our team remotely for a 3-month internship. This role offers an excellent opportunity to gain hands-on experience in web development, work on live projects, and strengthen your portfolio. While this is an unpaid internship, interns who successfully complete the program will receive a Completion Certificate and a Letter of Recommendation.

Responsibilities

• Build and maintain user-facing features with HTML, CSS, and JavaScript/TypeScript.
• Assist in developing web applications using frameworks like React, Vue, or Angular.
• Translate UI/UX wireframes into responsive and interactive web pages.
• Ensure performance, accessibility, and cross-browser compatibility.
• Debug and troubleshoot frontend issues.
• Collaborate with mentors, designers, and backend developers.
• Document code and contribute to team discussions.

Requirements

• Knowledge of HTML5, CSS3, and JavaScript (ES6+).
• Familiarity with at least one frontend framework (React preferred).
• Understanding of responsive and mobile-first design.
• Basic experience with Git/GitHub.
• Good problem-solving, communication, and teamwork skills.
• Self-motivated and able to work independently in a remote environment.

What You’ll Gain

• Real-world project experience to add to your portfolio.
• Mentorship and guidance from experienced developers.
• Completion Certificate after the internship.
• Letter of Recommendation based on performance.
• Potential for consideration in future paid opportunities.

Internship Details

• Duration: 3 months
• Type: Remote (Work from Home)
• Stipend: Unpaid
• Perks: Certificate of Completion + Letter of Recommendation

Responsibilities:

* Collaborate with cross-functional teams on project requirements and deliverables

* Develop user interfaces using React.JS and Express API's

* Implement database solutions with MongoDB and Node.JS