Frontend Engineer, 4+ years experience

General

We are looking for Frontend Engineers who will join our client’s team and build reusable web components and microfrontend experiences for a global rewards platform used across web, iOS, and Android.

 

Responsibilities/Activities

• Develop reusable, high-performance Web Components using Lit/LitElement within a global frontend ecosystem
• Build custom elements using Shadow DOM, component lifecycle best practices, encapsulation and strong API design
• Translate UI/UX designs into responsive, accessible and consistent interfaces for web, iOS and Android touchpoints
• Design, implement and maintain features in a microfrontend architecture used across multiple markets and customer journeys
• Integrate microfrontends with shell applications, Module Federation, single-spa or equivalent enterprise integration patterns
• Ensure independent deployment, isolation, smooth communication and predictable data flow between frontend modules
• Implement scalable state management using Redux or similar libraries such as Zustand, NgRx or Vuex
• Optimize first-load performance, runtime performance, rendering efficiency and perceived responsiveness
• Identify and resolve layout shifts, browser compatibility issues, memory problems and rendering bottlenecks
• Build interfaces aligned with WCAG and WAI-ARIA accessibility standards and compatible with assistive technologies
• Create and maintain unit, integration, and end-to-end tests; use modern debugging tools to troubleshoot issues efficiently
• Collaborate closely with backend developers, designers, product owners, and QA engineers in cross-functional squads
• Participate in code reviews and contribute to architectural, engineering-standard, and technical decision discussions
• Use AI-assisted development workflows responsibly to accelerate clean implementation, tests, and documentation

Requirements

Technical

• At least 4 years of working experience as a Frontend Developer in enterprise environments or large-scale applications
• Mandatory practical experience with Web Components, including custom elements, Shadow DOM and component lifecycle
• Hands-on experience with Lit and LitElement for building reusable frontend components
• Strong knowledge of HTML5, CSS3, JavaScript (ES6+), and responsive design principles
• Experience working in frontend ecosystems based on microfrontends
• Solid understanding of microfrontend integration, module isolation, independent deployment and shared frontend contracts
• Experience with Redux or comparable state-management systems such as Zustand, NgRx or Vuex
• Familiarity with RESTful APIs, asynchronous programming, frontend data flow, and state-management concepts
• Knowledge of frontend optimization techniques, browser internals, rendering performance, and cross-browser behaviour
• Understanding of accessibility standards, especially WCAG and WAI-ARIA
• Experience creating and maintaining unit, integration, and end-to-end tests for frontend applications
• Experience with AI-assisted development workflows, such as GitHub Copilot or pair-coding with LLMs
• Ability to maintain development flow and improve productivity through AI-enhanced coding practices
• Ability to produce clean, maintainable, scalable and reusable code in a modern frontend engineering setup

Education

• University degree in Computer Science or other related fields preferred

Others

• Good command of English (written and spoken)
• Excellent problem-solving abilities and strong attention to detail
• Ability to work both independently and within international, cross-functional squads
• Commitment to producing maintainable, high-quality code and clean user experiences
• Collaborative mindset focused on knowledge sharing, continuous learning, and modern engineering practices

Nice to have requirements

• Previous experience with rewards, loyalty, digital benefits, marketplace, subscription, streaming, eSIM, fintech, or banking products
• Experience with React, Angular or Vue.js in addition to Web Components and Lit
• Previous exposure to global platforms, loyalty products, digital perks, eSIM capabilities or streaming-service integrations