Senior Full-Stack Engineer; React​/TypeScript, Startup Environment Europe

Overview

WAND is an innovative startup focused on transforming the way people connect with technology through smart, user‑centered solutions. By combining cutting‑edge development with intuitive design, WAND empowers businesses and individuals to work more efficiently, make better decisions, and unlock new opportunities for growth. Driven by creativity and impact, the company aims to build tools that are both powerful and accessible.

Senior Full-Stack Engineer (React / Type Script, Startup Environment)

Location:

Other, Central Europe

• Design, build, and maintain scalable, high‑quality frontend applications using React and Type Script
• 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
• Operate effectively in a fast‑moving startup environment, balancing speed with engineering quality
• Proactively identify technical debt and drive pragmatic improvements to architecture, tooling, and development workflows
• Write clean, well‑structured, and well‑documented code that sets a high engineering standard
• Participate in and elevate code reviews through thoughtful, constructive feedback
• Optimize application performance through measurement, analysis, and modern frontend techniques
• Implement robust testing strategies across unit, integration, and end‑to‑end layers
• Integrate frontend systems with REST and/or Graph
  
  QL APIs reliably and securely
• Use AI‑assisted development tools responsibly to accelerate delivery while maintaining correctness and architectural integrity
• Evaluate AI‑generated output critically, identifying edge cases, security risks, and performance concerns
• Contribute to CI/CD practices and support reliable deployment pipelines
• Help define and refine engineering processes as the organization scales
• Operate across multiple projects or codebases, maintaining consistency and quality standards
• Communicate technical decisions clearly and document important architectural choices
• Support a calm, solution‑oriented engineering culture, especially during high‑pressure situations

• Comfortable working in a startup environment with evolving requirements and immature processes
• Able to remain effective under time pressure, changing priorities, and uncertainty
• Proactively helps shape and improve processes rather than waiting for them to be defined
• Maintains a calm, solution‑oriented mindset during high‑pressure situations
• Understands that early‑stage products require pragmatism, ownership, and adaptability

• Strong experience with React 19+, Tan Stack, Express.js, Mongo
  
  DB with Mongoose, Type Script, Shadcn, Tailwind CSS, Grafana, Unleash, OpenAPI, ESLint, Prettier, Docker, Vite
• Strong grasp of HTML, CSS, and modern styling approaches (CSS Modules, Styled Components, Tailwind, etc.)
• Understanding of performance optimization (memoization, rendering behaviour, code splitting, bundle analysis)
• Experience with testing (unit, integration, and basic E2E; e.g., Jest, Testing Library, Playwright/Cypress)
• Familiarity with frontend build tools and ecosystems (Vite, Webpack, Babel, npm/yarn/pnpm)
• Experience integrating with REST APIs
• Update and maintain RESTful server
• Strong knowledge of No‑SQL/SQL databases
• Solid experience with Express.js + Type Script
• Good understanding of Mongo
  
  DB, ability to write and debug queries
• Writes clean, readable, and well‑documented code
• Comfortable with code reviews and providing constructive feedback
• Able to identify technical debt and propose pragmatic improvements
• Understands trade‑offs between speed, quality, and long‑term maintainability
• Experience working in CI/CD environments

• Comfortable using AI tools (e.g., Copilot, Cursor, Claude, etc.) as part of the development workflow
• Able to critically evaluate AI‑generated code, identify mistakes, edge cases, and security/performance issues
• Uses AI to…