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.
Join the Device Security Team – Pioneering the Future of Secure Technology
Are you ready to redefine the boundaries of device security? The Device Security Team at TFH is a tight-knit group of industry-leading security experts and hackers, united by a shared passion for innovation and our bold mission. This team is at the forefront of safeguarding every aspect of device security across its entire lifecycle—from manufacturing to decommissioning—and across all layers, from hardware and firmware to the software stack.
Our work goes beyond traditional assessments; we invent. From crafting groundbreaking security solutions for provisioning devices in hostile factory environments to developing advanced attestation mechanisms, we set new standards in transparency, decentralization, and innovation. Each feature we build reflects our commitment to creating industry-first technologies with meaningful global impact.
Here, you’ll tackle extraordinary challenges you won’t find anywhere else, working on projects that push the limits of what’s possible in device security. If you're driven by curiosity, motivated by impact, and excited to collaborate with some of the brightest minds in the field, this is the team for you. Be part of a journey that’s as ambitious as it is rewarding. Let’s build the future of secure technology together.
About the Role:
In this role, you’ll collaborate with industry-leading security experts and hackers to design and develop groundbreaking security services for devices, for example:
- Design, develop, and implement security services for cutting-edge device security applications, such as remote attestation services, secure provisioning services, or secure image signing service.
- Collaborate with cross-functional teams, including security experts and ethical hackers, to innovate and solve complex security problems.
- Research and integrate emerging security technologies and methodologies to stay ahead in the field.
- Lead or contribute to projects that ensure secure and transparent processes across various domains.
- Provide technical expertise and mentorship within the team as needed.
About You:
- 5+ years of experience designing and implementing security-critical systems for internet-connected embedded devices, with a proven track record of successful delivery.
- Deep expertise in remote attestation services, SoC provisioning processes, or secure image signing workflows.
- Strong hands-on experience with Cloud HSM, AWS Lambda, Secret Manager, and role-based access control (RBAC)
- Extensive experience in creating, presenting, and refining technical specifications, from high-level system architecture to detailed implementation guides and test plans.
- Strong critical thinking, communication, and leadership abilities, with a proven track record of driving initiatives forward effectively.
- Thrives in fast-paced, collaborative environments and is motivated to tackle challenges with a team-first attitude.
We know that no one checks every box, so if you’re excited about this role but don’t meet all the criteria below, we encourage you to apply. We’re looking for passionate individuals eager to contribute and grow with our team. If you’re energized by working at the intersection of innovation and security, we’d love to hear from you!
Nice-to-Have Skills:
- Experience with Terraform Infrastructure as Code, Nvidia Orin security
- transparency technologies, blockchain, smart contracts
Top Skills
What We Do
Worldcoin is a new, decentralized global currency that will be distributed fairly to as many people as possible. Worldcoin will launch by giving a free share to everyone on Earth. We believe that this is an essential step to accelerate the transition towards a more inclusive global economy, providing new ways for everyone to share future prosperity.
