ReactJS 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 Summary:

We are looking for a passionate Frontend Engineer with 2 to 4 years of experience to build high-quality, scalable, and user-friendly web applications. You will work closely with cross-functional teams to bring ideas to life using modern JavaScript frameworks, maintaining best-in-class UI standards, performance, and code quality.

Website: https://www.thealteroffice.com/about

Key Responsibilities:

• Develop and maintain modern, high-performance, and responsive web applications using JavaScript frameworks such as React, Vue, or Next.js.
• Translate product designs from tools like Figma into pixel-perfect, accessible, and consistent UI components.
• Build reusable components and contribute to shared design systems or UI libraries.
• Manage state effectively using tools like Redux, Zustand, or Context API.
• Ensure applications are responsive, cross-browser compatible, and adhere to accessibility standards (WCAG).
• Optimize frontend performance using tools like Lighthouse, Web Vitals, and browser profiling.
• Use TypeScript to write type-safe and scalable code.
• Write unit, integration, and E2E tests using frameworks like Jest, Testing Library, Cypress, or Playwright.
• Work with backend teams to design APIs and ensure efficient, secure frontend-backend integration.
• Implement frontend security best practices, such as XSS protection and CSP.
• Use tools like Tailwind CSS, Framer Motion, and Styled Components for rapid, modern UI development.
• Contribute to CI/CD workflows, version control using Git, and deploy applications using platforms like Vercel, Netlify, or Firebase.
• Participate in code reviews, share knowledge, and help drive technical excellence across the team.

Requirements:

• 2 to 4 years of experience building and shipping frontend applications in a professional setting.
• Proficiency in JavaScript (ES6+), HTML5, and CSS3, with a strong understanding of modern frontend architecture.
• Hands-on experience with at least one JavaScript framework/library (React preferred).
• Strong knowledge of TypeScript and state management tools.
• Solid understanding of UI/UX best practices, including responsive design, performance, and accessibility.
• Experience with testing methodologies and automation tools.
• Familiarity with design systems, component libraries, and modern build/deployment tools (Webpack, Vite, Vercel, etc.).
• Comfortable working in agile teams, collaborating with designers, product managers, and backend engineers.

At Sudoviz, you will work closely with Product Management, Frontend, Backend engineers, and Data scientists that work hard to ensure that Sudoviz's products and platforms are helping our customer's most pressing security problems through intuitive and creative UI solutions.

You will develop secure, and well-tested, and performant features.

As a UI Rockstar, you will craft and code our internal standards for style, maintainability and document best practices for a high-scale web environment. You will maintain and advocate standards through peer code review while consistently shipping incremental features and improvements with minimal guidance.

You will own end-to-end delivery of product features, learn, collaborate and help train other Frontend Engineers joining the team.

Frontend Developer Responsibilities:

• Outstanding Professional experience with React, VueJS, and other modern JavaScript web frameworks such as Angular, Ember, etc
• Experience with writing automated tests using Jest, Karma, Jasmine, Mocha, AVA, tape, etc
• A solid understanding of JavaScript
• Core web and browser concepts (eg. how browsers work? how the rendering engine constructs a website page
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Experience with user interface design
• Developing and implementing highly responsive user interface components using React concepts.
• Developing and implementing frontend architecture to support user interface concepts.
• Design an architecture to support complex data labeling and filtering from multiple sources
• Research how to optimally model and display multidimensional data (e.g. D3 graphs and complex tables)
• Build a framework to support a user-friendly querying language
• Build a comprehensive UI dashboard from the ground up
• Team player - collaborate with Product Designers and Product Managers in order to develop an incredible user experience

Must have

• Excellent communication and documentation skills
• Bachelor's degree in Computer Science
• Good project management skills
• In-depth knowledge of JavaScript, CSS, HTML, and frontend languages.
• Knowledge of REACT tools Webpack, Enzyme, Redux, and Flux.
• Knowledge of performance testing frameworks, including Mocha and Jest.
• Experience with browser-based debugging and performance testing software

Nice to have

• Master's in Computer Science or equivalent/similar
• Monitoring and improving frontend performance.
• Experience in peak performance organizations/product companies
• Experience working with a remote team with a global culturally diverse team
• Passion for open source

Communication

• Proficiency in Written and Verbal communication for success in a remote asynchronous collaboration work environment
• Clearly and concisely communicate about complex technical, architectural problems

Mindset

• Positive solution-oriented mindset with demonstrated ability to onboard and integrate with an organization long-term
• Ability to achieve consensus with peers and clearly share status updates
• Self-motivated and Self managing individual with excellent organizational skills

About the position

We're looking for an experienced and motivated Frontend Developer to join our growing Engineering department. As a Frontend developer you will work closely with the founding team on building an exciting and unique new AppSec management tool. The ideal candidate will be able to work both independently and in a team, collaborating with other team members in product, UX/UI and R&D. It’s a great opportunity to join at an early stage and help shape the future of Application Security Posture Management.

Requirements:

• At least 3 years of experience in web development
• Expert-level JavaScript skills
• Advanced experience with React and Redux

Required Education: B.E/B.tech/ MCA 

Required Experience: 8+ Years

Location: Ahmedabad / Pune / Bangalore/ Broda/ Rajkot

Roles and Responsibilities

• Architect and drive complex software frontend framework refactor projects that incrementally modernize areas of the application and establish new guidelines for future product features
• Work with UI/UX designers, developers, and database administrators to analyze workflows and current implementation, and make a roadmap to refactor the frontend SPA that can be delivered in an incremental manner
• Efficiently working with various profiling and monitoring tools to identify performance and concurrency bottlenecks, propose and implement optimizations to improve cloud product
• Review end-user usage patterns, customer logged performance defects, and enhance page load performance based on gaps identified
• Understand application architecture, application interactions with backend applications and with other downstream systems
• Troubleshoot issues experienced by users and propose solutions

Basic Qualifications

• 8+ years of experience in implementing and driving front-end engineering and refactor projects and solutions
• Advanced level experience with SPA, modern UI fundamentals, multi-tenant application, concurrency, multithreading, and distributed system architectures
• Expert-level knowledge of JavaScript programming language
• Comfortable with Windows, SQL Server, .NET Framework/Core, GIT, Nuget, React Framework, ORM Framework NHibernate in terms of both tools and application development
• Passionate about finding software performance bottlenecks and optimizing code to produce a better customer experience
• Experience with APM (Application Performance Monitoring), RUM (Real User Monitoring), and other Dev tools used for Performance monitoring and analysis

Here is a quick summary for you:

Position – Front end Developer

Experience – 1- 4 Years

Notice period - Immediate to 30 Days

Location – Bangalore / Gurgaon

What will you do?
.Complete ownership of a feature.
.Work closely with the product and design team to build, test and deploy
feature specifications.
.Build reusable, scalable, and efficient front-end systems.
.Suggest and implement better ways to improve existing systems and keep
everything bug-free.
.Keep updated with the latest web technologies coming up in the market
and suggest ways to implement them in our system.
Must Have Skills :- 
.2 years of strong hands-on experience building applications on the web
platform with JavaScript, HTML, and CSS.
.Experience in building responsive web apps using JavaScript.
.Strong understanding of the latest JavaScript ES6+ concepts such as
Promises, OOPs, Scoping, etc.
.Strong hands-on experience in building SPAs using React JS and its
companion libraries.
.Experience with build tools such as Webpack, Grunt, Gulp etc.
.Knowledge of state management libraries such as Redux, Flux, Context
API, etc.
.Strong debugging skills using browsers dev tools and familiarity with
cross-browser support.
.Familiarity with API dev tools such as Postman.
.Knowledge of RESTful APIs.