Design and lead implementation of a frontend and full-stack architectural solutions that guarantee extreme performance, scalability, observability for displaying Ads world wide.
Optimize “Core Web Vitals” metrics, driving significant, measurable improvements in critical user performance metrics (LCP, INP/FID, CLS) for ad rendering and display.
Provide Hands-On Technical Leadership. Serving as the senior technical authority, solving the most complex system challenges, proactively addressing bottlenecks, and ensuring the implementation of the highest coding standards.
Architect and oversee advanced monitoring (RUM and Synthetic) systems to track crucial metrics like reliability, viewability, and latency at massive scale, providing deep debugging insights for ad creation teams.
Establish and evangelize on technical standards, tooling, and deployment methodologies (A/B testing, Canary deployments) across teams, while providing technical mentorship to elevate the skills of other engineers in performance and architecture.
Work intensely with Ads Layouts teams (designers, graphic specialists) and core Bidding Platform backend teams to ensure architectural alignment and optimal data flow for performance.

12+ years of hands-on software engineering experience, specialising in at least one area out of: Web Performance, RUM, Frontend Architectures, including at least 2-3 years spent in a Principal or Staff Engineer level (technical leadership path).
Architectural Expertise: Proven track record of designing, maintaining, and evolving scalable frontend and full-stack architectures for high-scale systems (millions of users/requests).
Web Performance Architect: Deep and practical expertise in optimizing Core Web Vitals and advanced loading techniques (caching strategies, Service Workers, Edge Computing/CDN utilization).
JavaScript/TypeScript Mastery: Expert proficiency in the JavaScript/TypeScript ecosystem and modern frameworks (e.g., React), including build tooling (e.g., Webpack, Vite) and optimization.
Data-Driven Optimization: Proven strong analytical thinking and experience using Real User Monitoring (RUM) and synthetic tools to diagnose and solve complex performance issues.

Projects focused on extreme performance and high code quality – solid code reviews are our standard.
Collaboration within an interdisciplinary, self-sufficient team where your architectural vision will be critical (including DevOps, database experts, backend developers, product designers, and QA engineers).
Hardware and software tailored to your preferences (e.g., MacBook, AI tool licenses).
Flexible working conditions – no core hours, fully remote cooperation possible.

Staff Frontend Engineer – Web Performance Architect

Key skills