Head of Security, Nexus
+ Generous equity compensation
Verifiable computing, powered by zero-knowledge proofs
Open for applications
Verifiable computing, powered by zero-knowledge proofs
1-20 employees
Open for applications
+ Generous equity compensation
1-20 employees
Company mission
To build the infrastructure for a verifiable world.
Role
Who you are
- This role requires a hands-on leader with deep technical and Web 3 expertise to build and scale a world-class security program in a rapidly evolving ecosystem
- 7+ years in security engineering or security leadership in blockchain, crypto, or high-growth tech environments
- Hands-on expertise in cryptography, protocol security, cloud security, and distributed systems
- Proven success building security programs from early-stage to production-grade systems
- Experience with incident response, audits, and threat modeling for mission-critical systems
- Familiarity with compliance standards (SOC 2, ISO 27001) and regulatory risk management
- Ability to balance tactical execution with strategic planning as the organization scales
- Embrace AI as a core part of how you work, think, and build
What the job involves
- Nexus is seeking a Head of Security to lead our security strategy and execution as we approach our Mainnet launch
- You will be responsible for securing the Nexus Layer 1 blockchain and shaping security practices for any future on-chain components built into the protocol
- Design and execute the end-to-end security strategy for Nexus Layer 1 and all infrastructure, organizational, and ecosystem security needs
- Lead threat modeling, risk assessments, and security audits across protocol, infrastructure, and application layers
- Partner with engineering leadership to architect secure blockchain protocols and integrate risk controls at the protocol layer
- Embed security practices into the software development lifecycle and CI/CD pipelines
- Develop incident response plans for critical on-chain and infrastructure risks
- Establish monitoring systems to detect economic, cryptographic, or consensus-layer vulnerabilities
- Establish ecosystem security policies for validators, governance participants, and external integrations
- Collaborate with legal and compliance teams to ensure readiness for global regulatory environments
- Collaborate with leadership to communicate risk posture and mitigation strategies
- Develop and report security KPIs, risk metrics, and strategic priorities
Our take
Nexus Labs is creating zero knowledge-powered scaling and privacy tools to support the rapidly changing digital AI landscape. Its solutions include cybersecurity and cloud computing support, all focused on Nexus Labs Nexus Project - a scientific and engineering scheme to enable verifiable computation at internet scale.
This ambitious project has attracted impressive funding from top Silicon Valley Investors. No surprise, considering the far-reaching motive of Nexus Labs: to bring about a new verifiable internet. The Nexus Project is attempting to draw on cryptography, mathematics and computer science to create a general-purpose system for verifiable computation.
There have already been several versions of the Nexus zkVM, and its funding is being channelled into improving its capabilities. The company’s work is cut out for it, but early interest from investors suggests that it will continue to grow.
Freddie
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 3 rounds)
Sep 2025
$7.2m
CONVERTIBLE
Jun 2024
$25m
SERIES A
Total funding: $34.4m
Company HQ
SoMa, San Francisco, CA
Leadership
Daniel Marin
(CEO)Previously a Software Engineer Intern at Google and Stanford University's Dawn AI Lab. Also a Bronze Medallist at Tel Aviv University's International Physics Olympiad.
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