UI Engineer
First Advantage1 day ago
Kraków, PolandMid Level
Responsibilities
- Develop and maintain responsive, accessible, user-friendly web interfaces and application screens.
- Translate UX/UI designs, wireframes, and prototypes into clean, reusable, maintainable frontend code.
- Build reusable components, shared component libraries, and design-system patterns for scalable development.
- Integrate frontend components with APIs and backend services in collaboration with engineering teams.
- Optimize applications for performance, usability, accessibility, browser compatibility, mobile responsiveness, and variable network conditions.
- Write unit tests, participate in peer code reviews, troubleshoot defects, and resolve production issues.
- Contribute to frontend standards, documentation, development processes, and continuous improvement.
- Provide technical input and effort estimates during sprint planning, backlog refinement, and solution discussions.
- Collaborate with product managers, UX/UI designers, backend engineers, QA teams, and distributed Scrum teams.
- Stay current with UI technologies, frameworks, accessibility standards, and engineering practices.
Requirements
- Approximately 3+ years of professional software development experience with JavaScript and TypeScript.
- Strong experience building responsive and accessible user interfaces with Angular.
- Experience developing applications that comply with accessibility standards, including WCAG guidelines.
- Experience with Nx, RxJS, and NgRx/Store for scalable frontend architecture and state management.
- Strong knowledge of HTML5, CSS3, and modern CSS layout techniques including Flexbox.
- Experience writing unit tests with Jest.
- Familiarity with Git-based source control workflows and CI/CD pipelines.
- Understanding of frontend security principles and secure coding practices.
- Ability to write clean, reusable, maintainable, and testable code.
- Strong communication, collaboration, and problem-solving skills in global distributed teams.
- Preferred: experience building reusable web components with Lit or willingness to learn it.
- Preferred: working knowledge of React for maintaining existing applications.
- Preferred: experience with Storybook, Figma, Jira, Azure DevOps, or similar tools.
- Preferred: experience in Agile/Scrum product development environments and familiarity with SaaS, cloud-native, HR technology, identity, verification, screening, or regulated software environments.
Benefits
- Employee Impact Groups.
- FA Cares volunteer opportunities.
- Mentorship Advantage Program.
- SOAR manager development program.
- Culture programs and benefits focused on employee experience and development.
Tech Stack
Categories
About First Advantage
First Advantage builds software and data services for employment background screening, identity verification, and compliance used by employers and housing providers. Its products span criminal checks, Form I-9 and E-Verify workflows, fingerprinting, social media checks, and post-hire monitoring, exposed via web platforms and APIs. Headquartered in Atlanta, Georgia, it is a public company listed on Nasdaq (FA) with global operations across more than 200 countries and territories.