React.js Developer

·      7+ years of professional experience in front-end development.

·      5+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.)

·      3+ Years Exp as Lead

·      Strong understanding of JavaScript (ES6+), HTML5, and CSS3.

·      Experience with RESTful APIs, GraphQL, and WebSocket integration.

·      Proficiency in modern build tools (Webpack, Vite, Babel, etc.).

·      Expertise in state management libraries (Redux, MobX) and React Query.

·      Solid understanding of UI/UX principles and responsive design.

·      Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).

Familiarity with modern CI/CD pipelines and version control tools (Git).

React Frontend Developer Mobile Responsive UI & Testing

Location: Remote

Shift: EST hours

Company: ARDEM Incorporated

Position Overview:

ARDEM is seeking an experienced Frontend Developer to enhance our existing React-based loan amortization desktop application by extending it with full mobile responsiveness and comprehensive testing. This role focuses on adapting and optimizing the current web application for iPad and iPhone devices, ensuring a seamless and consistent user experience across all viewports without developing a separate mobile app.

Key Responsibilities:

• Extend existing React components using responsive CSS to ensure optimal usability on iPad and iPhone devices.
• Adapt complex financial data tables and interactive interfaces for touch-friendly mobile interaction while preserving full desktop functionality.
• Implement progressive enhancement techniques to scale features effectively across varying device sizes.
• Identify and resolve edge cases in the data transformation pipeline and improve application robustness.
• Develop comprehensive technical test cases to validate component behavior, data flow, and API integrations.
• Debug and resolve CSS layout and rendering issues across devices, screen sizes, and orientations.
• Collaborate with backend and QA teams to ensure high-quality, stable, and performant releases.

Required Skills & Experience:

• Strong proficiency in React, JavaScript (ES6+), and modern CSS (Flexbox, Grid, media queries).
• Proven experience extending existing codebases to add responsive functionality (not limited to greenfield development).
• Experience building and optimizing financial or data-intensive web applications for responsiveness.
• Solid understanding of progressive enhancement and adaptive design patterns.
• Expertise in unit testing, integration testing, and writing detailed test documentation.
• Hands-on experience with Zustand or similar state management libraries.
• Familiarity with service-layer architectures and data transformation workflows.

Tech Stack:

• Frontend: React (functional components, hooks), Zustand (state management), TanStack Table (React Table)
• Backend: Node.js / Python APIs
• Architecture: Desktop-first application to be extended for mobile

Nice to Have:

• Experience working on financial or loan management applications.
• Familiarity with Salesforce API integrations.
• Understanding of web accessibility standards (WCAG).
• Experience optimizing large datasets or data tables for mobile devices.

Deliverables:

• Responsive enhancements for existing desktop components.
• Mobile-optimized layouts that extend, not replace, desktop functionality.
• Comprehensive test suite with fully documented test cases.
• Strengthened code architecture and error handling.
• Detailed technical documentation outlining the mobile optimization strategy.
• 
  

Additional Requirements

This opportunity enhances your work life balance with allowance for remote work. To be successful your computer hardware and internet must meet these minimum requirements:

1. Laptop or Desktop:

• Operating System: Windows
• Screen Size: 14 Inches
• Screen Resolution: FHD
• Processor: I5 or higher
• RAM: Minimum 8GB (Must)
• Type: Windows Laptop
• Software: AnyDesk
• Internet Speed: 100 MBPS or higher

Role: Full Stack Developer

Industry Type: BPM / BPO

Department: Engineering - Software & QA

Employment Type: Full Time, Permanent

Role Category: Software Development

Education

UG: B.Tech/B.E. in Computers

Hi,

Please refer to the below Job description and revert with you updated resume –

About Client: Digital accelerator to Startups, SMEs, MSMEs, and large enterprises with a significant contribution across 22+ industries including BFSI, Healthcare, Ecommerce & Retail, Education & eLearning, Insurance, Tech Startups, Government & Semi-Government, and more. Backed with an impressive experience of 25+ years and a fast-growing family of 4000+ engineering professionals our capabilities span across IT Consulting, Strategy Planning & Execution, Business Process Re-engineering, IT Modernization, and Business Analysis Consulting, our solutions are devised meticulously to address the needs of specific industries.

We are a CMMI Level 5 organization global IT Solution provider and Outsourcing company headquartered in Mumbai and footprints with 10 delivery centres in India and 15 global offices. Our success portfolio boasts of 7500+ projects accomplished across 1500+ clients in 50+ countries with client retention rate as high as 85%

Location: Navi Mumbai, CBD Belapur

Domain: Banking (Payment Gateway Project)

NOTE: 1st and 3rd Saturdays working as per banking norms

Education: B.E. or Graduation in Computer Science or related field

job Summary:

We are seeking a talented and motivated React.js Developer to join our development team. The ideal candidate will be responsible for designing and developing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will ensure that these components and the overall application are robust and easy to maintain.

You will coordinate with the rest of the team working on different layers of the infrastructure, including back-end services and APIs. Therefore, a commitment to collaborative problem-solving, sophisticated design, and quality products is essential.

Key Responsibilities:

Develop new user-facing features using React.js.

Build reusable components and front-end libraries for future use.

Optimize components for maximum performance across a vast array of web-capable devices and browsers.

Translate designs and wireframes into high-quality code.

Write clean, scalable, and maintainable JavaScript code.

Ensure the technical feasibility of UI/UX designs.

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

Debugging, troubleshooting, and enhancing application performance.

Stay updated with emerging trends and technologies in front-end development.

Skills and Qualifications:

Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.

Thorough understanding of React.js and its core principles.

Experience with popular React.js workflows (such as Flux or Redux).

Familiarity with RESTful APIs and integrating them into front-end code.

Knowledge of modern authorization mechanisms, such as JSON Web Token (JWT).

Familiarity with modern front-end build pipelines and tools (e.g., Babel, Webpack, NPM, etc.).

Experience with code versioning tools such as Git.

Familiarity with browser developer tools and debugging.

Understanding of cross-browser compatibility issues and ways to work around them.

Familiarity with unit testing and testing frameworks (e.g., Jest, Enzyme, Cypress).

Ability to understand business requirements and translate them into technical requirements.

Preferred Qualifications:

Bachelor's degree in Computer Science, Software Engineering, or a related field.

Experience with TypeScript and GraphQL.

Experience with other JavaScript frameworks like Next.js or Gatsby.js.

Familiarity with CI/CD pipelines and containerized applications (e.g., Docker).

Good understanding of SEO principles and ensuring that application adheres to them.

Soft Skills:

Strong problem-solving skills and attention to detail.

Excellent communication and teamwork abilities.

Ability to work in a fast-paced environment and meet deadlines.

Open to learning new technologies and frameworks.

Skills:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (Redux)
• Familiarity with newer specifications of ECMAScript
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial)

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

Responsibilities:

• Translate designs and wireframes into high quality code.
• Write and maintain modular and high performance code.
• Collaborate with BE devs and UX designers to improve usability.
• Participate in technical discussions and communicate across teams.
• Lead frontend technical development efforts.
• Take ownership and drive projects end-to-end.
• Mentor junior developers

• Design front-end architecture (secure, high-performing, scalable, extensible, flexible, simple).

Requirements:

• Should have strong JavaScript fundamentals.
• HTML/CSS experience, including concepts like layout, specificity, cross browser compatibility, and accessibility.
• Strong proficiency in JavaScript, the JavaScript object model and ES6
• Understanding of React.js / Angular/ Vue.js and its core principles.
• 2+ years of hands-on experience with React.js /Vue.js/ Angular.
• Good communication skills.
• Good understanding of FE build systems and tools like Babel(ES6), Webpack, Grunt, npm,. is a plus.
• Experience with browser APIs and optimising front end performance is a plus.

Responsibilities :

Build awesome web experiences using React.js
Plan and accommodate all mediums, screen sizes and device types
Build in flexibility and customization from the start
Internalize the user and promote good usability and accessibility in every experience
Be nimble and react quickly to changing business conditions
Work with product managers, content producers, QA engineers and release engineers to own your solution from development to production

Qualifications :

5+ years building web and/or mobile experiences with evidence of exceptional ability
Bachelor’s Degree in Computer Science or related field, or equivalent experience or other evidence of exceptional ability
Solid understanding of fundamental web technologies such as HTTP, REST, AJAX and JSON.
Strong proficiency in JavaScript / ES6, including DOM manipulation and the JavaScript object model
Thorough understanding of React.js and its core principles
Unit Testing with Jest/Enzyme
Experience with Redux
Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
Experience working with RESTful APIs
Experience with Nodejs, Expressjs or NextJs
Excellent mastery of web standards, cross-browser compatibility, accessibility and SEO.
Strong CSS skills w/ experience building responsive applications across a variety of browsers and devices using modern CSS3 techniques
Ability to identify tasks which require automation and automate them
Expert knowledge of maintaining and debugging live software systems
Prior experience with Symfony MVC frameworks desirable.

About the Company

Job Description

Experience : 2-3Years

Requirement

• 2 years of experience in frontend development primarily using React .JS
• Knowledge and experience in JavaScript and ReactJS ,HTML,CSS3
• Thorough understanding of NodeJs & React.js(SSR) and its core principles
• Familiarity with RESTful APIs
• Familiarity with modern front-end build pipelines and tools
• Good experience and thorough understanding of React.js and its core principles
• Good experience in UI design and development
• Knowledge of functional and object-oriented programming
• Ability to write well-documented, clean Javascript code
• Ability to understand business requirements and translate them into technical requirement

Regards 
Team Merito

What You Will Be Doing:

• Create highly responsive B2C web-app using a wide range of open source frontend and backend technology.
• Create single page applications using a wide range of javascript & cutting edge libraries/frameworks.
• Responsible for the full lifecycle of a project, including development, unit testing, system testing and change management.
• Research technical issues and provides recommendations to enhance JavaScript products.
• Manage/Lead a team of 10+ javascript fullstack developers to handle a wide range of projects across different products.
• Code reviews, Overall project estimations, Estimation reviews, Project planning.
• Interact with stakeholders for the development requirements gathering.
• Layout a technical career growth plan for the team members.
• Working with multiple projects.

 What we are looking for:

• Bachelor’s degree in Computer Science or equivalent preferably from IIT,NIT & other premier institutes.
• Rockstar Javascript developer, who appreciates the intricacies of JS as well as passionate to follow new trends in JS.
• Experience with product companies.
• 9-12 yrs of software development on advanced JavaScript stack (Native Javascript, Asynchronous Request Handling, AJAX, HTML5, CSS3, etc).
• 2-4 yrs of experience in leading and mentoring a team. 
• In-depth knowledge in ReactJS & NodeJS
• Proficiency in any other modern web frameworks will be a plus.
• A solid knowledge of advanced data structures & algorithms.
• Proficient in Computer Science fundamentals & object-oriented design.
• Solid understanding of cross-browser compatibility issues and ways to tackle those.
• Must possess a track record of building Single Page responsive UI.
• Experience with Databases such as NoSQL and any RDBMS will be a plus.
• Experience with transport protocols such as TCP, HTTP & WebSocket.
• Expressing and appreciating design patterns is a real addition.
• Critical of coding practices and development methodologies.

.

• Responsible for development of new highly responsive, web-based user interface
• Construct visualizations that can depict vast amounts of data
• Work and collaborate with the rest of the engineering team
• Work with product team and graphic designers
• Learn and understand user interactions
• Develop a flexible and well-structured front-end architecture, along with the APIs to support it

Requirements and qualifications

• B.S Degree in Computer Science
• Experience with JavaScript
• Experience with REACT
• Experience with HTML / CSS
• Experience with REST API's
• Git knowledge is a plus
• Team player
• Good time-management skills
• Great interpersonal and communication skills