Backend Engineer

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Backend Engineer Salary Not Disclosed Company Description Humanity Protocol is a $1.1B unicorn building the human layer for Web3, having raised $50M from top-tier investors like Kingsway Capital, Pantera, and Animoca Brands. Job Description Join Humanity Protocol as a Backend Engineer in London to build the decentralized identity systems powering a privacy-preserving human layer for Web3. You will own production services using Python and FastAPI, ensuring the reliability and scalability of our palm-scan biometric network while working alongside world-class engineers and cryptographers in a hybrid office environment. Location London, UK Why this role is remarkable Join a $1.1B unicorn at the intersection of ZK-proofs and biometrics, solving the critical challenge of Sybil attacks in decentralized networks.Work on a high-impact platform backed by $50M from leading investors including Pantera, Jump Crypto, and Kingsway Capital.Exercise true ownership over production services in a fast-paced environment where your decisions directly shape the infrastructure of a global identity network. What You Will Do Design and implement scalable backend APIs using Python (FastAPI) to power the identity verification platform and biometric verification flows.Take end-to-end ownership of production services, including deployment, monitoring, and incident response to ensure high reliability.Optimize and scale database architectures using Postgres and Redis to support a rapidly growing user base and high-throughput transaction volumes. The ideal candidate Has 4+ years of professional experience building and maintaining production-grade APIs using Python or a directly comparable backend stack.Demonstrates deep expertise in SQL and Postgres, with a proven track record of managing database performance and reliability at scale.Possesses a strong sense of ownership and technical leadership, having previously led scaling or reliability projects in production environments. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you.Jill is the AI recruiter working for the company. She recruits from Jack's network.If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.