Must have

• UI

• User interface

• TypeScript

• JavaScript

• React

• Angular

• REST API

• GitHub

• Test-driven development

• Unit testing

• Testing

• Protractor

• Webpack

• Gulp.js

• Figma

• Highcharts

• CSS

• Communication skills

• Excel

• English (Fluent)

Nice to have

• Node.js

Requirements description

What You Bring

• 5+ years of professional experience in front-end development
• Deep expertise in TypeScript, JavaScript, and modern frameworks like React or Angular
• Experience integrating with REST APIs and version control systems like GitHub
• Strong background in Test-Driven Development (TDD), unit testing, and end-to-end testing tools (e.g., Protractor or alternatives)
• Familiar with build automation tools such as Webpack, Gulp, or similar
• Hands-on experience with UI design tools such as Figma, and component libraries like ag-Grid or Highcharts
• Solid understanding of asynchronous programming (Promises, Observables) and building reusable, modular UI components
• Strong grasp of CSS and JS for responsive design and high-performance visual rendering
• Understanding of web application infrastructure including APIs, caching, server-side logic, and deployment workflows
• Excellent written and verbal communication skills, with the ability to drive discussions and lead technical decisions
• A track record of ethical, high-quality engineering and a collaborative mindset

Ideal Candidate

You are a forward-thinking developer with a passion for building intuitive, scalable front-end systems that empower users and support operational excellence. You excel in collaborative, fast-paced environments and have a strong eye for both technical precision and user experience.

Offer description

Role Title: Senior Front-End Engineer – UI Systems

Location: Warsaw, hybrid

Contract Type: Umowa o Pracę - full time employment

The Opportunity

We are seeking a seasoned Front-End Engineer to take a leading role in designing and maintaining innovative user interface systems used across discretionary business and analytical teams. This is a high-impact opportunity to build performant, scalable interfaces and shape user experience at the intersection of technology and data-driven decision-making.

You’ll join a fast-paced environment where modern UI development, best engineering practices, and advanced front-end capabilities converge to streamline workflows and enhance user efficiency.

Your responsibilities

1. Design, develop, and maintain advanced front-end components integrated into core internal applications
2. Build new and enhance existing interfaces to meet evolving user needs, leveraging the latest UI frameworks and development methodologies
3. Collaborate with cross-functional teams to align on architecture, usability, and performance requirements
4. Optimize front-end components for scalability, responsiveness, and efficient data handling
5. Implement robust test suites (unit, integration, end-to-end) to ensure quality and reliability
6. Conduct code reviews, mentor junior developers, and contribute to a high-standard engineering culture

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