React.js Developer

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

We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.

React.js Developer Responsibilities:

1. Reviewing application requirements and interface designs.
   
2. Identifying web-based user interactions.
   
3. Developing and implementing highly responsive user interface components using react concepts.
   
4. Writing application interface codes using JavaScript following react.js workflows.
   
5. Troubleshooting interface software and debugging application codes.
   
6. Developing and implementing front-end architecture to support user interface concepts.
   
7. Monitoring and improving front-end performance.
   
8. Documenting application changes and developing updates.
   

React.js Developer Requirements:

1. Previous experience working as a react.js developer.
   
2. In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
   
3. Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
   
4. Experience with user interface design.
   
5. Experience with browser-based debugging and performance testing software.
   
6. Excellent troubleshooting skills.
   
7. Good project management skills.
   

Frontend Developer (ReactJS)

About Company

Egregore Labs (www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology.

Opportunity

We are looking for an experienced Frontend engineer with ReactJS development experience to join our team.

We will share our workload as a team and we expect you to work on a broad range of tasks.

Here’s are some of the things you might have to do on any given day:

Implement responsive and performant UIs with user centered approach with frontend technologies including ReactJS, Javascript(ES 6), Typescript, SCSS, etc

Write meaningful test cases for frontend &amp

Integrate our products with 3rd party products/tools/services

Develop Infrastructure for delivering services using a performance driven approach, build databases, schedule automated jobs, etc

Ideal Background / Experience

At least 3 yrs of diverse experience in web development for product or services oriented environment with exposure to working production deployments

Expertise in programming using Python/ReactJS or similar scripting languages

In-depth exposure to technologies used in web-based SaaS products, including REST APIs

Sound understanding of Postgres and NoSQL databases such as MongoDB

Nice to have exposure to any of

AWS

Azure

ELK

Object Relational Models (SQLAlchemy, etc)

Google APIs

Microservices Architecture Pattern

NodeJS / ExpressJS

Must Have: ReactJS, Javascript, HTML5, CSS3, Databases (SQL & NoSQL)

Work From Home

Package: upto 10L

Job Description

We are looking for a qualified 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.

If you’re interested in creating a user-friendly environment by writing code and moving forward in your career, then this job is for you. We expect you to be a tech-savvy professional, who is curious about new digital technologies and aspires to combine usability with visual design.

Ultimately, you should be able to create a functional and attractive digital environment for our company, ensuring great user experience.

Key Responsibilities

• Use markup languages like HTML to create user-friendly web pages
• Maintain and improve website
• Optimize applications for maximum speed
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve 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
• Create fast and functional and intuitive interfaces
• Follow coding standards, build appropriate unit tests, integrate tests and deployment scripts

• Translate designs and style guides provided by the UI/UX team into functional user interfaces, ensure cross-browser compatibility and performance

• Suggest improvements to user interface, software architecture or use of new technologies Deliver reliable solutions that handle massive data and high traffic.

Skills Required

• Hands on experience with markup languages
• Experience with JavaScript, CSS and jQuery
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Knowledge of SEO principles
• Familiarity with software like Adobe Suite, Photoshop and content management systems
• An ability to perform well in a fast-paced environment
• Excellent analytical and multitasking skills
• BSc degree in Computer Science or relevant field
• Tech/ M.Tech in CS or other related fields such as EE or MCA from IIT/NIT/BITS but not compulsory.
• Good experience in JavaScript/ReactJS/Nodejs/HTML/jQuery/Css/SASS

• Experience in AngularJs/ Webpack/ Gulp will be a plus point but not mandatory Strong Javascript fundamentals along with experience with libraries.
• Well versed in software engineering principles, frameworks, and technologies

• Takes responsibility for successful delivery of the solutions Communicates continually with the project teams Explains progress on the development effort

• Self-directed team player who thrives in a continually changing environment A hands on and a passionate coder with minimalistic design sense

• Prior start up experience is preferred

About Company: Spica Systems (https://spicasys.com )

Spica Systems is a Silicon Valley based start-up, established in 2019 and are recognized as experts in building products and providing R& DandSoftware Development services in wide range of leading-edge technologies such as LTE, 5G, Cloud Services (Public -AWS, AZURE, GCP, Private -Openstack) and Kubernetes. Ithasa highly scalable and secured 5G Packet Core Network, orchestrated by ML powered Kubernetes platform, which can be deployed in various multi cloud modealong with a test tool. Headquartered in San Jose, California, we have our R& D centre in Sector V, Salt Lake Kolkata.

• Looking for a Software developer who will work on the product's Web UI side
• Hands on and working experience with React JS
• Experience in WebUI using Javascript technology.
• Experience: 2-4 years of React development in a team environment
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Redux.
• Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.

Education: Bachelors/Masters in Computer Science, IT or Mathematics or Engineering

Traits: Quick learner, open minded, willing to learn

Wekan Company is hiring React.Js Developer for Chennai

Experience: Overall 4 – 7 years, relevant experience in React.Js - 2 years

Must Have Skills: React, Redux, ES6 and above, HTML5, CSS3

Good to have: Typescript

• Strong verbal and written communication skills, analytical skills and the ability to learn quickly.
• Creative approach to problem-solving with the ability to focus on details while maintaining the big picture view.
• In-depth understanding of Javascript, The DOM and relevant concepts.
• Experience of working on RESTful Web services.
• Responsive web development using HTML5, CSS3, JavaScript.
• Work with cutting-edge frameworks and technologies while advancing your skills along the way
• Developing new user-facing features using React.js and Redux
• Building reusable components and front-end libraries for future use
• Knowledge of WebPack.
• Good experience with any of the testing framework like mocha, jest, jasmine.
• Experience of working in an Agile environment with experience of using tools such as Jira.
• Good communication skills.
• Degree in Computer Science, Engineering or a related subject.

Best Regards
David