Senior Full-Stack Engineer (React/TypeScript)

TL;DR

Senior Full-Stack Engineer (React/TypeScript): Designing, building, and maintaining scalable full-stack applications with an accent on frontend architecture, performance, and integration with backend systems. Focus on operating effectively in a fast-moving startup environment, leveraging AI-assisted development tools, and driving pragmatic architectural improvements.

Location: Wroclaw, Poland

Company

WAND is an innovative startup creating smart, user-centered solutions to empower businesses and individuals.

What you will do

• Design, build, and maintain scalable, high-quality frontend applications using React and TypeScript.
• Own features end-to-end, from ambiguous product requirements through technical design, implementation, testing, and release.
• Architect maintainable frontend systems with a strong focus on performance, usability, and long-term extensibility.
• Collaborate closely with product managers, designers, and backend engineers to translate business needs into effective technical solutions.
• Proactively identify technical debt and drive pragmatic improvements to architecture, tooling, and development workflows.
• Use AI-assisted development tools responsibly to accelerate delivery while maintaining correctness and architectural integrity.

Requirements

• Strong experience with React 19+, TanStack, Express.js, MongoDb with Mongoose, Typescript, Shadcn, Tailwind CSS, Grafana, Unleash, OpenAPI, ESLint, Prettier, Docker, Vite.
• Deep understanding of modern JavaScript/TypeScript, HTML, CSS, and modern styling approaches.
• Experience with performance optimization and various testing strategies (unit, integration, basic E2E).
• Familiarity with frontend build tools and integrating with REST APIs.
• Comfortable working in a startup environment with evolving requirements and immature processes.
• Able to critically evaluate AI-generated code, identify mistakes, edge cases, and security/performance issues.

Culture & Benefits

• Operate effectively in a fast-moving startup environment, balancing speed with engineering quality.
• Support a calm, solution-oriented engineering culture, especially during high-pressure situations.
• Paid Vacation.
• Sick Days.
• Sport/Insurance Compensation.
• Training Compensation.