Lead Platform UI Engineer - SaaS Platform

Qdrant is a cutting-edge technology company specializing in open-source vector databases designed for next-generation AI applications. Our platform enables high-performance vector similarity search, allowing businesses to unlock deep insights from unstructured data. By offering both open-source software and managed cloud solutions, we empower developers and enterprises to build scalable, AI-driven search and recommendation systems with ease.

As we grow, we are looking for a Lead Platform UI Engineer to take ownership of our frontend platform and UI architecture . In this role, you will drive the design and evolution of our shared UI foundations (design system, reusable components, patterns, tooling) across Qdrant Cloud, and work side-by-side with our backend team to build a robust, scalable developer and customer experience.

Tasks

As a Lead Platform UI Engineer with a strong frontend focus and full-stack mindset, you will own the front-of-house experience of Qdrant Cloud as well as the UI platform used by multiple product teams .

You will:

Define and evolve the UI platform

• Design and own our frontend architecture for Qdrant Cloud, focusing on modularity, scalability, and performance.
• Build and maintain a shared component library / design system in React + TypeScript to be reused across teams and products.
• Establish standards for state management, routing, API integration, error handling, and observability in the frontend.

Hands-on frontend development

• Implement complex, high-impact features in React (with modern tooling such as TanStack, OpenAPI, TypeScript, etc.).
• Ship well-structured, testable modules and improve the overall DX (developer experience) of our frontend stack.
• Continuously profile and tune frontend performance, bundle size, and runtime behavior.

Cross-functional collaboration & backend integration

• Work closely with backend engineers to shape and optimize APIs, contracts, and data flows for UI needs.
• Contribute to Python backend services when necessary to unlock or improve frontend functionality.
• Collaborate with Product and Design to turn requirements and UX flows into robust, maintainable implementations.

Technical leadership & mentorship

• Act as the go-to person for frontend and UI platform topics across teams.
• Mentor other frontend developers, review critical pull requests, and help establish and enforce coding standards and best practices.
• Drive technical decision-making around frontend architecture, libraries, and tooling.

Infrastructure, quality & reliability

• Own key parts of the frontend delivery pipeline : CI/CD, linting, testing, quality gates, error tracking, performance monitoring.
• Help define and maintain quality metrics (e.g. core web vitals, error budgets, coverage, build times).
• Ensure our UI stack is secure, observable, and resilient by default.

Requirements

• 5+ years of experience in frontend development, with substantial experience owning or co-owning a production React application.
• Deep expertise in React, JavaScript/TypeScript, HTML5, and CSS3 , including component composition, hooks, and modern patterns.
• Solid understanding of web platform fundamentals : JavaScript, DOM, REST APIs, caching, browser performance.
• Experience with backend technologies (ideally Python or Node.js) and single-page applications (or hybrid architectures).
• Proven track record designing or contributing to frontend architectures, shared component libraries, or design systems .
• Strong familiarity with the frontend ecosystem: testing, linting, bundling, error tracking, performance profiling, CI/CD pipelines.
• Comfortable debugging frontend–backend interactions , API contracts, and performance issues in production.
• Excellent communication skills and ability to collaborate with engineers, product managers, and designers.
• Experience providing technical leadership or mentoring to other engineers, even if not in a formal manager role.

Nice to Have:

• Familiarity with Python frameworks like Flask or FastAPI.
• Familiarity with meta frameworks like Remix, Next.js, and/or libraries like TanStack Router and Query.
• Experience with modular, scalable frontend architectures.
• Knowledge of OAS, GraphQL and/or WebSockets.
• Prior experience working in a SaaS or startup-like environment.

Benefits

• Shape the UI platform of a critical AI infrastructure product

Take a leading role in defining how developers and customers interact with Qdrant Cloud, and build the UI foundations that other teams build upon.

• Engage in Open-Source Development

Be part of a dynamic team working on an open-source project that shapes the future of AI and vector search.

• Fully Remote & Timezone-Friendly

Enjoy the flexibility of a fully remote position with colleagues distributed across multiple time zones.

• Innovate in AI Technology

Contribute to a key component of the modern AI stack and influence the direction of cutting-edge technology used by teams worldwide.