About Us
At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.
At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in.
Available Locations: Lisbon or London (Hybrid)
About the Team
The Cloudflare Vectorize team builds our managed, global vector database designed to power the next generation of AI-driven applications. Vectorize enables developers to store and query high-dimensional vector embeddings, providing the "long-term memory" required for Large Language Models (LLMs) and semantic search. Integrated directly into the Cloudflare Workers and Workers AI ecosystem, Vectorize allows developers to build full-stack AI applications—from generating embeddings to performing similarity searches—entirely on Cloudflare’s global network.
Vectorize is a critical component of our Developer Platform and features:
- High-Performance Vector Search: Optimized for low-latency similarity search using Approximate Nearest Neighbor (ANN) algorithms (like HNSW).
- Metadata Filtering: Support for storing and filtering on metadata alongside vectors to provide precise, context-aware query results.
- Global Distribution: Built on top of Cloudflare’s distributed infrastructure to ensure that AI applications remain fast and responsive regardless of where the user is located.
The team is geographically located in the UK.
What you'll do
We are looking for an Engineering Manager to join the Vectorize team. You will lead a group of engineers who are defining how stateful AI applications are built at the edge. You will play a pivotal role in scaling Vectorize to support billions of vectors and hundreds of thousands of indexes while maintaining the performance and reliability Cloudflare is known for.
You will work closely with product and engineering teams to implement cutting-edge indexing strategies and improve the developer experience for RAG (Retrieval Augmented Generation) workflows. You bring a passion for making complex AI infrastructure accessible to every developer. You thrive in a fast-paced environment where you are building the foundations of the AI era. Most importantly, you have a track record of leading technical teams with a focus on high-quality execution and engineer career development.
Examples of desirable skills, knowledge and experience
- Strong communication skills – Ability to build a shared understanding of complex topics like vector quantization, indexing trade-offs, and distributed state.
- Leading Distributed Systems – Experience leading and hiring teams that build and operate high-availability distributed databases or search engines.
- Navigating the AI Landscape – Comfort working in the rapidly evolving world of AI/ML, understanding how vector databases fit into the broader LLM and RAG ecosystem.
- Execution & Predictability – Excel at planning, roadmap execution, and managing the lifecycle of a high-growth developer product.
- Developer-First Mindset – Experience building APIs and tools that simplify complex backend operations for frontend and full-stack developers.
- Technical Leadership – A track record of leading teams through hiring, onboarding, and mentorship. You can explain the "why" behind architectural decisions to both engineers and stakeholders.
- Systems Programming – Professional experience with Rust, Go, or TypeScript.
Bonus Points
- Search & Indexing Expertise – Experience with vector search libraries (e.g., Faiss, HNSWlib) or traditional search engines (e.g., Elasticsearch, Lucene).
- AI/ML Infrastructure – Experience building or managing platforms that serve machine learning models or manage embeddings at scale.
- Database Internals – Familiarity with storage engines, query optimization, or distributed consistency models.
- Serverless Ecosystem – Experience working with Cloudflare Workers or other serverless platforms to build stateful applications.
What Makes Cloudflare Special?
We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.
**Project Galileo**: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost.
Athenian Project: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.
**1.1.1.1**: We released1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by ourprivacy commitment and ensure that no user data is sold to advertisers or used to target consumers.
Sound like something you’d like to be a part of? We’d love to hear from you!
Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs. More details about this will be available at that stage of the interview process.
This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.
Cloudflare is proud to be an equal opportunity employer. We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer.
Cloudflare provides reasonable accommodations to qualified individuals with disabilities. Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment. If you require a reasonable accommodation to apply for a job, please contact us via e-mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.