Senior Software Engineer, Fleet Management

Tools For Humanity
San Francisco, CA

About the Company:

World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all. It is built to connect, empower, and be owned by everyone.

About the Orb
Central to Worldcoin's launch is the "Proof-of-Personhood" system, facilitated by our unique biometric device, the Orb. This advanced imaging device is crucial for verifying human identity and ensuring an individual hasn’t already claimed their free share of Worldcoin. Orbs are operated by a global network of operators to register users, capturing iris encodings and ensuring secure data submission to Worldcoin's backend. Our privacy-preserving approach to Proof-of-Personhood is detailed further in the Worldcoin whitepaper.

About the Team
The Orb Software team is a compact group of industry veterans, versatile software engineers, and dedicated hackers, united by Worldcoin’s vision. Our responsibilities include all software aspects of the Orb, from development to manufacturing, automated testing, and fleet management. The multifaceted nature of our project demands close collaboration with the Security, Hardware, and AI & Biometrics teams.

In our quest to bring the Orb to life, we prioritize foundational thinking, practicality, and focused, meaningful work. We empower team members to manage significant projects from start to finish and pursue excellence together.

About the Opportunity:

As a senior software engineer you’ll be designing and building systems that run inside of AWS VPCs.

In this role, you will:

  • Take ownership of larger pieces of work and lead them!

  • Create application and infrastructure components mainly in Rust.

  • You will work with Terraform-provisioned AWS infrastructure and with services like S3, EKS, EC2, Route53, etc.

  • Own the full lifecycle of feature development from design through testing and release.

  • Participate in on-call rotation to provide application support, incident management and troubleshooting.

About You:

  • Experience in high-level languages such as Rust and Golang.

  • Experience in building and scaling distributed systems.

  • Can knowledgeably discuss performance, security, and user interactions in complex software systems.

  • Built and operated a large scale distributed system service.

  • Expertise in AWS.

  • Expertise in Kubernetes.

  • Experience with MongoDB is nice to have.

  • Nice to have: Familiarity with front-end web development, especially React, and a portfolio showcasing any front-end or full-stack projects you've created.

What we offer in San Francisco:

  • An open and collaborative office space in downtown SF

  • Unlimited PTO

  • Monthly Phone Reimbursement or a company device

  • Top-tier medical, dental, vision insurance

  • 401k + employer match program

By submitting your application, you consent to the processing and internal sharing of your CV within the company, in compliance with the GDPR

Pay transparency statement (for CA and NY based roles):

The reasonably estimated salary for this role at TFH ranges from $200,000 - $245,000, plus a competitive long term incentive package. Actual compensation is based on factors such as the candidate's skills, qualifications, and experience. In addition, TFH offers a wide range of best in class, comprehensive and inclusive employee benefits for this role including healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more!

Posted 2026-02-13

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