Technical Lead ReactJS

Due to expanding our team in Sofia we are looking for a Technical lead ReactJS. Please note that this is an on-site role based in Bulgaria and is not a remote position.

Responsibilities

Leading technical and business discussion with clients and internal team; Work closely with our customers to understand their business requirements and propose technical solutions; Champion good engineering and management practices in the team, and continual improvement of related processes; Developing new user-facing features using React.js; Building reusable components and front-end libraries for the future use; Translating designs and wireframes into high-quality code; Create and oversee the development of testable/maintainable/readable code; Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Requirements

6–8 years of overall IT experience; At least 4 years of web development experience; At least 3 years of production React experience, including modern patterns (hooks, Server Components, Suspense); Strong experience with at least one modern React meta-framework (Next.js, React Router/Remix, or equivalent); Hands-on experience with Vite as a build tool and dev environment; Proficiency with modern state management (Zustand, Jotai, TanStack Query, or React Context patterns); Strong experience with TypeScript in production codebases; Proficiency with a modern CSS/UI approach (Tailwind CSS, CSS-in-JS, or component libraries like shadcn/ui, Radix, MUI); At least 2 years of experience leading or managing engineering teams; Strong JavaScript fundamentals, including the language object model, async patterns, and modern ES features; Deep understanding of React core principles, rendering behavior, and performance optimization; Solid grasp of web fundamentals: accessibility, performance, usability, and information architecture; Experience with Git and modern CI/CD workflows; Ability to lead technical and business discussions with clients and internal teams

Nice to have

Experience with React Server Components and streaming/SSR patterns; Experience with testing (Vitest, React Testing Library, Playwright/Cypress); Familiarity with data fetching/caching libraries (TanStack Query, SWR); Experience consuming and designing REST and/or GraphQL APIs; Understanding of TDD and component-driven development; Experience with edge/serverless deployment (Cloudflare Workers, Vercel, etc.); Monorepo experience (Turborepo, Nx, pnpm workspaces)

Benefits

extremely competitive remuneration package; technical trainings and certifications; flexible working hours; food and gift vouchers; additional health insurance; great work-life balance and 25 days annual vacation; 1 day birthday leave; regular team events; a positive and fun environment