• Design and build the development and production platforms that power our new products, enabling reliability and security at scale • Own the development of new user-facing generative AI features and product experiences end-to-end • Partner with researchers, engineers, product managers, and designers to bring new features and research capabilities to the world • Accelerate engineering productivity by empowering your fellow engineers with excellent tooling and systems • Help create a diverse, equitable, and inclusive culture that makes all feel welcome while enabling radical candor and the challenging of group think • Like all other teams, we are responsible for the reliability of the systems we build. This includes an on-call rotation to respond to critical incidents as needed

•You will have an enormous impact on making our app and API service faster, more scalable and more flexible. •You will collaborate with product and engineering teams to ship AI-powered features and make the existing ones perform orders of magnitude faster. •Real-time messaging to support 500,000 concurrent users per customer application; •High performance: our API responses are in the 10ms range; •Design and build AI Agents, RAG pipelines, model fine-tuning and crawling. •High scalability: we use sharding, master-master, and master-slave to ensure scalability; •High availability: our code is running on homepages of the most visited websites and apps on the internet; •Distributed databases for our Data Platform storing every user engagement.

• Architect low-latency Python services supporting core search • Optimize indexing and ranking pipelines • Improve query response times at scale • Design concurrency strategies for performance-critical systems • Influence system-level architectural decisions • Mentor senior engineers and elevate technical standards • Bridge ML-driven ranking systems with production-grade infrastructure

• FocusReactive is a modern consultancy company with deep specialization in our core development stack. • It is not a traditional outsourcing company, therefore we expect each engineer to integrate well into clients product delivery and design process, driving key decision-making. • You will regularly embed with client teams, either in person or remotely, to provide project leadership and technical expertise. • When you’re not working on client projects, you’ll have a chance to contribute to our community-leading open source software and polish your presentation skills at our tech events.