ZeroRISC

ZeroRISC is redefining silicon security and supply chain integrity by empowering device owners and operators in crucial sectors like silicon production, IoT, and critical infrastructure with full device ownership, control, and visibility. Led by the founders of the OpenTitan secure silicon project, ZeroRISC is driving commercial adoption of high assurance software and services rooted in open silicon designs. Our products forge an immutable connection between hardware and software, enabling users to trust their devices no matter where they’re built or where they’re deployed.

Role Overview

As a Software Engineer at zeroRISC, you will develop our suite of security-focused cloud services and infrastructure. You’ll have the opportunity to learn, grow, and directly contribute to the design and implementation of scalable, reliable, and secure systems. You’ll collaborate closely with the rest of our engineering team to design APIs, build backend systems, and implement cloud integrations, ensuring seamless functionality with our embedded platform. This position is ideal for a mid-level or senior engineer who is looking for an opportunity to own the design and execution of new products.

Key Responsibilities:

Design, build, and maintain cloud infrastructure and cloud-based services and APIs to support the functionality and scalability of our platform
Contribute to the development of software applications that interface with our embedded operating system and provide key features for end-users
Identify and resolve bugs, and write automated tests to ensure system reliability and maintainability
Stay informed about advancements in cloud computing, distributed systems, and secure software practices, applying these insights to your work

What We’re Looking For:

Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field
Strong understanding of computer science fundamentals, including algorithms, data structures, and system design
6+ years of full-time industry experience in a role with cloud infrastructure or cloud service development as a primary focus
Proficiency in programming with a modern language like Go and Python (prior experience with Go is not required but is a plus)
Strong understanding of distributed systems, cloud computing concepts, and RESTful API design
Strong teamwork and communication skills to work effectively with senior engineers, product teams, and other stakeholders

Preferred Qualifications:

Familiarity with cloud platforms such as AWS, GCP, or Azure
Experience with containerization and orchestration tools like Docker and Kubernetes
Knowledge of industry-standard PKI and hardware security practices

Why Join Us?

Your work will directly contribute to the development of cutting-edge security solutions, protecting critical systems in industrial and IoT environments
As a seed-stage startup, this role offers significant opportunities for learning and career growth
Join a close-knit, innovative team where you can learn, grow, and contribute to building something meaningful in the security space

About the company

zeroRISC commercializes OpenTitan-based silicon Root of Trust technology to provide silicon, software, and cloud services that secure devices from boot to runtime. Its Integrity Management Platform verifies at boot that devices run authorized code and stores an immutable hardware fingerprint in silicon, while enabling policy management through cloud services. It differentiates itself by offering a full-stack, open-source-rooted security solution rather than just silicon, aligning hardware, embedded OS, and cloud controls under one platform. The goal is to make foundational hardware security transparent and accessible, giving data centers, ICS/OT, IoT, and edge devices centralized control over security policies and verifiable boot integrity.

Company Size

11-50

Company Stage

Seed

Total Funding

$15M

Headquarters

Boston, Massachusetts

Founded

2023

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Simplify's Take

What believers are saying

zeroRISC raised $10 million in June 2025, extending commercialization runway.
The March 2026 PQC release delivered 6–9x ML-KEM and ML-DSA speedups.
Zakir Durumeric joined the board on July 10, 2025, strengthening technical credibility.

What critics are saying

Google shipped OpenTitan Chromebooks in March 2026, shrinking zeroRISC’s uniqueness.
Microchip’s April 28, 2026 PQC root-of-trust controllers attack zeroRISC’s enterprise buyers.
Nuvoton manufacturing dependence creates an existential chokepoint if supply or roadmap diverges.

What makes zeroRISC unique

OpenTitan’s first commercial chip shipped with Nuvoton on February 13, 2024.
zeroRISC sells below-OS supply-chain integrity, not a standalone secure-element chip.
Its 2026 Cryptolib stack combines classical and post-quantum hardware and software.

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Business Wire

Mar 9th, 2026

ZeroRISC releases open-source post-quantum cryptography stack with 6–9x speed boost for silicon chips

ZeroRISC has released a complete open-source cryptographic hardware and software stack for both classical and post-quantum operations. The release includes the Cryptolib embedded cryptography library, an Asymmetric Cryptography Coprocessor, and hardware accelerators for symmetric operations. The multi-year collaboration with research institutions achieved 6–9x speedups for ML-KEM and ML-DSA algorithms whilst improving maximum operating frequency by 36–75% with near-zero area cost. Memory optimisations reduced ML-DSA stack usage by over 90%. Cryptolib supports classical algorithms including AES, SHA2/SHA3, RSA and elliptic curve cryptography, alongside NIST-standardised post-quantum algorithms ML-KEM, ML-DSA and SLH-DSA. The consortium will present results at Real World Crypto 2026 in Taipei on 9 March, demonstrating production-grade post-quantum cryptography for embedded systems.

bdtonline.com

Jul 10th, 2025

Censys Co-founder Zakir Durumeric and Seasoned Investor David Gammon Join ZeroRISC's Board of Directors

ZeroRISC, the leading open-source silicon supply chain integrity solution, today announced the appointment of Zakir Durumeric, Stanford Professor and Censys Founder, and David Gammon, CEO & founder of Rockspring, to its Board of Directors.

Business Wire

Jun 12th, 2025

ZeroRISC Closes $10 Million in Seed Funding Led by Fontinalis to Accelerate Commercial Adoption of Open-Source Silicon for Secure Devices

ZeroRISC announced the close of its oversubscribed seed round with $10 million in new funding, led by Fontinalis Partners.

FinSMEs

Jun 11th, 2025

ZeroRISC Raises $10M in Seed Funding

ZeroRISC raises $10M in Seed funding.

SiliconANGLE Media

Jun 11th, 2025

ZeroRISC secures $10M for silicon security

ZeroRISC, a silicon supply chain integrity solutions startup, raised $10M to expand its open-source silicon security platform. Founded by Dominic Rizzo in 2023, ZeroRISC offers a commercial-grade chip based on the OpenTitan root of trust and an Integrity Management Platform. The platform includes silicon hardware, embedded software, and cloud tools, with post-quantum cryptography for future-proof security. The funding round was led by Fontinalis Partners, with participation from several investors.

zeroRISC

Senior Software Engineer - Cloud

About the job

Key Responsibilities:

What We’re Looking For:

Preferred Qualifications:

Why Join Us?

About the company

Get referred to zeroRISC

Simplify's Take

What believers are saying

What critics are saying

What makes zeroRISC unique

Growth & Insights and Company News

6 month growth

1 year growth

2 year growth