AngularJs 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

About us

Founded in 2018, Seventh Triangle is a Direct to Consumer enabler and Digital Transformation Agency. As a Shopify Plus Partner in India, we collaborate with top enterprise brands including Jockey, Titan, Nykaa, and V-Guard to achieve Revenue & Profitability growth using Data, Technology and Marketing interventions. With 120+ team members across Noida and Bengaluru, we’re known for driving measurable eCommerce success in the D2C and Shopify space. At Seventh Triangle, we help D2C businesses primarily with four service stacks which are Technology (Store Migration, Revamp, CRO and monthly maintenance), UI & UX, Growth Marketing (Performance, Retention and SEO) and Data Analytics (Management Dashboards).

Role Overview

We are seeking a skilled Shopify Frontend Developer with 2–4 years of experience. The ideal candidate will build engaging, responsive, and high-performing eCommerce experiences using Shopify themes and modern frontend technologies.

Key Responsibilities

• Develop and customize Shopify themes using Liquid, HTML, CSS, and JavaScript
• Understand client requirements and provide technical solutions and effort estimates
• Convert Figma/XD designs into functional and visually accurate Shopify pages
• Build responsive, mobile-first experiences for all device types
• Optimize website speed, including Core Web Vitals and performance metrics
• Implement custom features using Shopify APIs and third-party integrations
• Ensure SEO best practices and web accessibility standards
• Troubleshoot and debug frontend issues across browsers and devices
• Stay updated on Shopify platform developments and eCommerce trends

Required Qualifications

• Experience: 2–4 years in Shopify frontend/theme development
• Shopify Expertise: Strong knowledge of Liquid and theme customization
• Proven experience customizing paid themes like Impulse, Prestige, Motion, Impact
• Hands-on expertise with Dawn and Horizon, including architecture-level understanding
• Strong skills in HTML5, CSS3, JavaScript (ES6+), responsive design
• Experience with modern frameworks like React or Vue.js
• Proficiency with Git and collaborative development workflows
• Strong understanding of web performance optimization
• Ability to ensure cross-browser compatibility

Technical Skills

• Shopify Liquid
• HTML5, CSS3, JavaScript (ES6+)
• Responsive & mobile-first development
• REST APIs, AJAX
• jQuery & modern JS frameworks
• Git, GitHub
• Chrome DevTools & debugging
• Shopify theme customization & app integrations

Soft Skills

• Strong problem-solving and attention to detail
• Excellent communication and teamwork abilities
• Ability to manage multiple projects and deadlines
• Self-motivated with a learning mindset
• Good understanding of eCommerce UX and customer journeys

1. We are looking for candidates who have good programming skills. Strong on data structures, algorithms, understand time space complexity, able to come up with multiple solutions and then arrive at most optimized one keeping in mind customer requirements. Should also be well aware of OO concepts. If he / she has a strong background on these areas ( in any programming language),
2. Next the candidate should have worked on JS  with good hands on experience in a few projects mainly in backend development like making api calls, handling exception, models, data transformations, controllers etc. 
3. The last would be having some experience in any one of react.js/ node.js or even angular.js since some of these are being used in the current project. 
4. Prefer candidates with Angular (ver 8+), react.js (ver 16+), Node (Ver 14+) and extremely good in JavaScript, HTML & CSS
5. Experience : 3-6 years relevant

About Our Client

Our client is a Currency Exchange in India. Built with user experience and security in mind, Our Client provides instant fiat to crypto conversions with zero fees, so that users can have access to a diverse suite of financial products and services that are backed by industry-leading security processes and insurance protection. Our Client aims to be the global gateway to cryptocurrencies. Its proprietary liquidity aggregation model provides its users with access to liquidity from leading global crypto exchanges. Our Client is recognized and awarded for its contribution to the Indian emerging tech space.

Why Our Client?

Cryptocurrency Traders are looking for a strong global platform that can help them trade faster, better and smarter. We are building a platform that can solve their needs. The opportunity is big, and the journey is tough. Now that’s a challenge that needs to be addressed. You do that. You are phenomenal in solving these complex challenges. You help our team do more.


As a Front End Developer - Angular, you do all of the above and more. You make a difference.

What will I do?

• Delivering a complete front end application
  • Ensuring high performance on mobile and desktop
  • Writing tested, idiomatic, and documented JavaScript, HTML, and CSS
  • Coordinating the workflow between the graphic designer, the HTML coder, and yourself
  • Cooperating with the back-end developer in the process of building the RESTful API
  • Communicating with external web services
  • Ensure high-quality graphic standards and brand consistency
  • Stay up-to-date on emerging technologies
  • Write functional requirement documents and guides

What skills should I have?

- Must have 7+ years of experience in frontend development with an internet startup.
- Deep knowledge of Angular practices and commonly used modules based on extensive work experience
- Proficiency with JavaScript and HTML5
- Extensive knowledge of CSS and JS methods for providing performance visual effects and keeping the frame rate above 30fps at all times
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Creating custom, general use modules and components which extend the elements and modules of core Angular
- Ability to understand business requirements and translate them into technical requirements

Prelude

Required Skills

• 2+ years of RELEVANT EXPERIENCE in ReactJS
• Strong Computer Science fundamentals - data structures and algorithms
• Strong understanding of ReactJS Ecosystem (State management, Component-based design, Hooks, Responsive design)
• Good with CSS (converting UI designs to code)
• Writing clean and maintainable code
• Proficient understanding of APIs and wiring them   
• Strong testing, debugging, and problem-solving skills
• Familiar with modern development practices - writing clean code, git versioning, understanding development workflows

• Develop reusable, maintainable cross-platform HTML, CSS, and JavaScript for front-end web application components while adhering to web and team standards.
• Write unit tests to provide sufficient testing coverage for each developed component.
• Constantly review and improve frontend performance of the web application.
• Work with creative and business partners to understand, build and adjust web application functionality and visual presentation to support business goals.
• Work with server-side, infrastructure, and 3rd party technology partners to build, integrate and deploy web application functionality and visual presentation to support business goals.
• Work with project technical lead and/or FE architect to create technical designs and implementation plans.
• Ensure accuracy and attention to detail throughout the development process.
• Remain curious and current with new developments in the FE web development industry.

QUALIFICATIONS:

• Demonstrated 3-5 years of practical front-end web development experience.
• Expertise in writing and testing valid, web standards-based HTML, CSS, JS.
• Fluent in fundamentals of computer science such as:
• Object-Oriented Programming, Data Structures, Coding Patterns.
• Deep understanding and experience with the following standards and technologies is essential:
• DOM, JSON, AJAX, HTML5 Video, WCAG 2.0 AA, Git.
• Strong verbal and written communication skills are preferred.
• Bachelor’s Degree is preferred.
• Sample portfolio (code or public-facing web build) is a plus.
• Experience working for high-end brands or another environment with very high standards for the presentation layer is a plus; Ecommerce experience is a plus

Responsibilities:

• Responsible for development of new highly-responsive, web-based user interface
• Develop a flexible and well-structured front-end architecture, along with the APIs to support it 3.
• Building reusable components and front-end libraries for future use
• Translating designs and wire frames into high quality code
• Construct visualisations that are able to depict vast amounts of data
• Work with product team and graphic designers
• Learn and understand user interactions

Requirements:

• Deep knowledge of web standards
• Deep knowledge of JavaScript concepts and fundamentals
• Strong understanding of ReactJs. development, and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Experience of working with code versioning tools (such as Git, SVN)
• Familiarity with RESTful APIs
• Familiar with HTML, CSS and SCSS development
• Knowledge of bundlers such as Gulp/Web pack, ES6, Node etc..
• B.Tech from Tier 1 college.
• 3+ yrs of experience with front end technologies HTML and JavaScript
• 1+ yrs of Project experience with react