Infrastructure Lead, World Chain

Job Overview

We’re hiring an Infrastructure Lead to own the production systems behind World Chain. This role is responsible for the reliability and operational maturity of core chain infrastructure, including sequencing, block building, node operations, RPC, upgrades, observability, and recovery. You will help define how World Chain is operated day to day, how we detect and respond to failures, and how we scale the network safely over time.

Key Responsibilities

• Lead a team of talented engineers and provide direction for the future of World Chain scaling.


• Own the reliability, performance, and operational health of World Chain’s core infrastructure, including node fleets, RPC services, sequencing and execution systems.


• Build the observability, incident response, and recovery capabilities needed to operate a production blockchain network with high confidence.


• Lead capacity planning, performance tuning, release processes, and operational automation to support growth safely and efficiently.


• Partner with protocol, product, and security teams to ensure infrastructure is ready for launches, upgrades, and evolving network needs.


• Write clean, efficient, and maintainable infrastructure-as-code.


• Contribute to the deployment, monitoring, and long-term maintenance of infrastructure in production on Terraform, AWS, and Kubernetes.


• Participate in research and development efforts to scale World Chain vertically and horizontally.

About You

2+ years designing and operating high-availability L2 infrastructure or high-availability distributed systems in production.

6+ years of infrastructure experience

Deep judgment in reliability engineering, observability, incident response, and operational risk management.

The ability to reason about complex system interactions, performance bottlenecks, and failure modes in blockchain or other mission-critical infrastructure.

A track record of leading through ambiguity, raising operational standards, and helping teams scale systems with discipline.

About the Company

Tools for Humanity (TFH) designs and builds technology behind World. World is building a real human network designed to accelerate people in the age of AI. As bots and autonomous agents reshape the internet, people, institutions, and applications need a trusted way to confirm who is a real human while preserving privacy. The TFH and World tech stacks make this possible: the Orb verifies real, unique people, World ID proves it privately, and World App puts these capabilities, and more, in people’s hands. Together, they add a human layer to an AI-driven internet.

World is already running at a global scale. More than 17 million people across 160 countries have verified with World ID, and more new Orb verifications take place each week. World App is already among the most used wallets globally. Developers are integrating World ID to build safer online experiences and create spaces where real people can participate, earn, and be recognized in ways AI simply can’t replicate.

Founded in 2019, TFH has more than 400 people across hardware, software, AI, cryptography, mobile engineering, and global operations. Our teams come from OpenAI, Tesla, SpaceX, Apple, Google, Stripe, Meta, Coinbase, Palantir and MIT Media Lab. We’re backed by leading investors, including a16z, Khosla Ventures, Bain Capital Crypto, Blockchain Capital, Variant, Tiger Global, and Coinbase Ventures, as well as prominent operators and founders across fintech and AI.

TFH and World have been featured on the cover of TIME Magazine, highlighted in Fast Company’s Next 5 in Fintech, and explored in a Bloomberg deep dive. The New York Times, Bankless and TechCrunch have all recognized our collective progress in identity, cryptography, AI, and global-scale hardware deployment. Our leadership is also named to the Time AI 100. Learn more about the newest product launches from our Liftoff event.

About the Team

The World Chain team builds and operates the infrastructure that keeps the network reliable, scalable, and ready for global usage. We work across blockchain systems, platform engineering, and production operations to ensure core chain services are performant, observable, and safe to evolve.

World Chain is differentiated by World ID, a decentralized, privacy-preserving proof of human, and by its focus on powering consumer financial experiences such as local stablecoins, foreign exchange, and private peer-to-peer payments. Today, it is the backbone of one of the world’s largest consumer wallets and a growing developer ecosystem that includes multiple venture-backed teams building on the network.