Senior Device Security Engineer

Join to apply for the Senior Device Security Engineer role at World

Join to apply for the Senior Device Security Engineer role at World

About The Company:

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.
This opportunity would be with Tools for Humanity.
About The Orb
Worldcoin's launch requires a "Proof-of-Personhood": a way to determine someone is human (not a bot) and hasn't already claimed their free share of Worldcoin. This is why we developed the Orb .
The Orb is an advanced biometric imaging device, custom-designed for Worldcoin's launch. Orbs are deployed to a global network of operators, who use the device to onboard new Worldcoin users. During this onboarding, the Orb generates an encoding of each user's iris and submits it to Worldcoin's backend. For more details on how the Orb is part of Worldcoin's privacy-preserving approach to Proof-of-Personhood, see the Worldcoin whitepaper.
The Orb solves a fierce combination of engineering and UX challenges, centered around image quality, security, and ease-of-use. Each device has an advanced iris imaging system, designed to work consistently across real-world lighting conditions. An additional suite of sensors feeds into an onboard fraud detection system, enabling use in unsecured environments. These systems are combined in a sleek industrial design with a simple, minimalist user interface.
About The Company
Worldcoin is a new, collectively owned 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. We hope you’ll join us on our ambitious journey.
About The Team
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 technologies that set new standards for device protection. You will have the opportunities to work on a variety of exciting and impactful areas depending on your interest, for example:

• Conducting deep and comprehensive security assessments and hardening the hardware, firmware, and software layers of devices using cutting-edge techniques and innovative approaches.
• Developing advanced hardware protection mechanisms to ensure devices remain resilient and secure, even in the most hostile environments.
• Redesigning platform software architecture with a security-first perspective and implementing it in products.
• Revolutionizing secure manufacturing processes or creating decentralized remote attestation mechanisms.
• Reinventing secure boot mechanisms to address practical challenges, such as device demotion or decommissioning, while maintaining robust security.
• Engaging in a wide array of additional projects that push the boundaries of what’s possible in device security.
  

This role offers the chance to work on challenges that are not only technically demanding but also uniquely meaningful, with opportunities to leave a lasting impact on the industry.
About You

• 5 to 10+ years of experience designing and delivering security-critical systems for internet-connected embedded devices. This may include hardware oracles, robotic systems, IoT devices, or automotive systems.
• In-depth knowledge of hardware security, Linux, Android or iOS security, peripheral or firmware security, or TPM-based remote attestation.
• Proficiency with technologies such as TEE, secure manufacturing processes, transparency systems, physical or cloud HSMs, cryptography, or virtualization.
• 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 seL4, formal verification
  

Pay Transparency Statement (for CA And NY Based Roles):
The reasonably estimated salary for this role at TFH ranges from $213,000 - $319,000 , 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, 401(k) plan and match, life insurance, flexible time off, commuter benefits, professional development stipend and much more!

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Hospitals and Health Care, Non-profit Organizations, and Government Administration

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