Zeely Inc. - Lead Frontend Developer
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Requirements
• 3+ years in a Lead / Team Lead role, managing and mentoring 10+ engineers in a fast-paced product environment. • 8+ years of hands-on Frontend experience, with deep production expertise in React. • Strong TypeScript proficiency, including scalable architecture design and maintainable codebases. • Proven experience defining and evolving frontend architecture in high-load B2C products (100k+ users). • Production experience with a modern stack, including: • Redux Toolkit and/or RTK Query for complex client/server state management; • Tailwind CSS and shadcn/ui for building scalable UI systems; • React Hook Form for complex, performance-sensitive forms. • Strong understanding of performance optimization, server-state management, and UX under load. • Experience operating in continuous delivery environments with frequent releases. • Ability to balance delivery speed with long-term maintainability and engineering quality. • Strong ownership mindset: from architectural decisions to measurable product impact. • Excellent leadership, communication, and decision-making skills. • English at Intermediate+ level and fluent Ukrainian for day-to-day team collaboration. • Would Be a Strong Advantage: • Experience integrating payments and subscription logic (Stripe or similar providers). • Experience with product analytics tools (Mixpanel, Sentry, etc.). • Experience building data-heavy interfaces (dashboards, charts, large tables, filtering, virtualization). • Experience implementing real-time or near-real-time updates (SSE, polling, WebSockets). • Experience working with design systems (both custom-built and ready-made). • Experience with Next.js or modern SSR frameworks. • Strong hands-on experience with React in production (7+ years overall front-end experience preferred), including real ownership of front-end areas in product teams. • Solid TypeScript skills — deep understanding of type safety, scalable architecture, and maintainable codebases. • Production experience with a modern front-end stack, including: • Redux Toolkit and/or RTK Query for complex state and server-state management; • Tailwind CSS and shadcn/ui for building scalable, consistent UI systems; • Strong understanding of modern front-end development practices, including component architecture, performance considerations, and maintainability. • Experience working in product teams using Agile processes, with the ability to operate in environments with evolving requirements and partial ambiguity. • Strong skills in building adaptive, responsive, and accessible layouts, with a pixel-perfect mindset and close attention to UI details as a core part of engineering quality. • Language proficiency: English at Intermediate level or higher and fluent Ukrainian for day-to-day communication with the team. • Experience integrating payments and subscription logic (e.g., Stripe or similar providers) and working with product analytics tools (e.g., Mixpanel or similar). • Experience building complex dashboards or data-heavy interfaces (charts, tables, filtering, pagination). • Experience implementing real-time or near-real-time updates (SSE, polling, websockets, or similar approaches). • Experience working with advanced table patterns (sorting, virtualization, large datasets) using modern table solutions.
Responsibilities
• Define and evolve the frontend architecture for a complex AI-driven product built on a modern React stack. • Lead and grow a Frontend team (10+ engineers), set technical standards, and provide mentorship. • Drive key technical decisions with full ownership — from architectural rationale to implementation and long-term impact. • Ensure production-grade quality from the first iteration, balancing speed and engineering excellence. • Optimize server state management, performance, and UX for high-load B2C environments. • Oversee the full SDLC: from idea and design alignment to release and measurable product impact. • Lead and structure the code review process, ensuring maintainability, scalability, and clean architecture. • Maintain high code quality standards, including testing strategy and technical documentation. • Work in a continuous delivery environment with frequent releases. • Collaborate closely with Product and Design to ensure business impact, usability, and data-driven decision-making.
Benefits
• Build AI-powered tools with real impact, helping over one million small businesses grow, compete, and launch ads without agencies or complex marketing setups. • Join a strong A-level team of experienced professionals who set a high bar and push each other to do better work. • Remote-first approach: work from anywhere, with access to our offices in Warsaw and Kyiv. • We take care of the essentials. Paid time off, sick leaves, and financial support with private entrepreneurship matters. • Regular performance reviews to ensure your growth is transparent and rewarded. • Recruitment Process: • Recruiter interview → Test assignment → Tech Interview → Interview with COO / Co-Founder → Reference check → Job offer. • You’ll influence core product decisions, and help build a fast-growing, financially stable AI platform — not as a contributor on the sidelines, but as an owner of critical parts of the product. • Send us your CV — we’d love to get to know you better! 💚
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