Senior UI/UX Engineer - React/TypeScript & Design Systems

Adecco Portugal; Warszawa; Hybrid; PLN 201,000 - 249,000; Full time

Benefits offered by this job

Work in Warsaw hybrid

B2B option

Temporary contract

Job summary

Adecco Portugal is seeking a Senior Design/Developer to lead design and front-end engineering for client-facing Portals in a hybrid Warsaw role. You will own the requirements-to-prototype process, govern design systems, and code alongside a mid-level team to deliver accessible, enterprise-grade portals.

The candidate translates ambiguous business needs into validated prototypes and leads a team to ship pixel-accurate UI. A strong UI/UX portfolio and deep React/TypeScript expertise are essential.

Qualifications

• 8+ years of hands-on React/TypeScript development with a strong UI/UX portfolio.
• Expert-level proficiency in design/prototyping tools (e.g., Figma) including design systems.
• Experience translating designs into production-quality, responsive UI.
• Familiarity with containerized environments (Docker/Kubernetes/OpenShift) and modern CI/CD.
• Strong stakeholder management and ability to defend design decisions.
• Experience reviewing code and providing feedback within a team.

Responsibilities

• Own requirements-to-prototype pipeline: wireframes, interactive prototypes, and high-fidelity designs.
• Define and enforce UI/UX standards and design system usage across TA Portals.
• Architect and build React/TypeScript front-end components and shared UI libraries.
• Review pull requests and provide actionable feedback on design fidelity and code quality.
• Collaborate with backend/API teams to ensure feasible front-end designs.
• Drive WCAG 2.1 AA accessibility and responsive design across portal screens.
• Conduct usability testing and iterate designs based on feedback and analytics.
• Mentor mid-level UI/UX developers on design thinking and React best practices.
• Participate in architecture/governance reviews as portal design owner.

Skills

React

TypeScript

UI/UX Design

Figma

Design Systems

CI/CD

Docker

Kubernetes

OpenShift

Tools

Docker

Kubernetes

OpenShift

Git

Job description

Adecco Portugal is seeking a Senior Design/Developer to lead design and front-end engineering for client-facing Portals in a hybrid Warsaw role. You will own the requirements-to-prototype process, govern design systems, and code alongside a mid-level team to deliver accessible, enterprise-grade portals.

The candidate translates ambiguous business needs into validated prototypes and leads a team to ship pixel-accurate UI. A strong UI/UX portfolio and deep React/TypeScript expertise are essential.