Senior Frontend Architect & Tech Lead (React/Next.js)

Uvation, Inc.; Polska; On-site; PLN 180,000 - 280,000; Full time

Job summary

Uvation, Inc. seeks an experienced front-end lead to own the architectural direction of complex React/Next.js features. You will mentor, review designs, and shape scalable front-end systems with a focus on performance, accessibility and robust data integration.

The role demands extensive expertise with UI libraries, state management, and modern testing strategies. You will collaborate with back-end teams, drive contracts, and guide CI/CD practices for high-quality deliverables.

Qualifications

• Advanced experience with React, Next.js, TS, and modern hooks-based components.
• Design scalable frontend architecture with single source of truth and clear boundaries.
• Experience building reusable component libraries and API governance.
• Deep experience with Zustand/Redux Toolkit or equivalents.
• Strong HTML/CSS/SCSS with responsive design and accessibility.
• Experience implementing designs from visual specs using Carbon or Material UI.
• Strong REST API integration with typed models and data handling.
• Defining or validating API contracts with backend teams.
• Performance profiling, memoisation, code splitting, lazy loading.
• Awareness of frame rate, GPU usage for graphics-heavy screens.
• Hands-on WebGL/three.js/React Three Fiber with animation timelines.
• Managing events across layered UI and graphics surfaces.
• Integrating map SDKs with token management and coordinate systems.
• Isolated styles, clean props/callbacks, no global side effects.
• Testing with Vitest/Jest and React Testing Library.
• Strict TypeScript, cross-browser testing and DevTools.
• Contributions to CI/CD, Git workflows and PR reviews.
• Experience with Azure DevOps.
• Technical leadership through mentoring and documentation.
• Front-end security fundamentals.

Skills

React

Next.js

TypeScript

Hooks-based components

Front-end architecture

State management (Zustand/Redux)

UI design systems (Carbon/Material UI)

REST API integration

API contracts testing

Performance optimization

WebGL/three.js

Graphics & interactive visuals

Testing (Vitest/Jest)

CI/CD / Git workflows

Azure DevOps

Security basics

Code splitting / memoisation

Cross-browser testing

Job description

Uvation, Inc. seeks an experienced front-end lead to own the architectural direction of complex React/Next.js features. You will mentor, review designs, and shape scalable front-end systems with a focus on performance, accessibility and robust data integration.

The role demands extensive expertise with UI libraries, state management, and modern testing strategies. You will collaborate with back-end teams, drive contracts, and guide CI/CD practices for high-quality deliverables.