Technical Advisor (Cryptography)

Winterthur Search Fund, LLC; Wilmington (DE); Hybrid; USD 100,000 - 150,000; Part time

Job summary

Winterthur Search Fund, LLC seeks a Cryptography Technical Advisor to provide expert guidance on cryptographic algorithms and protocols. This part-time role offers flexible hybrid or remote work arrangements. The candidate will address security challenges, conduct threat modeling, and optimize cryptographic implementations. Preferred qualifications include experience with hardware security modules and compliance-driven environments. An advanced degree in a related field is required. Join us in a dynamic environment focused on technological advancement.

Qualifications

• Hands-on experience in cryptography with complex security challenges.
• Experience with hardware security modules, FIPS, and Common Criteria.
• Strong organization and communication skills for collaboration.

Responsibilities

• Provide expertise on cryptographic algorithms and protocols.
• Evaluate and select appropriate cryptographic primitives.
• Perform threat modeling and security analysis.

Skills

Cryptographic algorithms development

Threat modeling

Security analysis

Performance optimization

Technical documentation

Education

Advanced degree in a related field

Tools

Hardware security modules (HSMs)

Trusted execution environments

Job description

At Winterthur Search Fund, our Technical Advisors play an important role in the Search Fund process. You will apply your specific technical expertise to support the executive team and our portfolio companies by serving as the expert of your technical domain.

This position offers a flexible, part-time work schedule with remote and hybrid work options, depending on project requirements. We customize the Technical Advisor role to each selected candidate.

Cryptography Technical Advisor

We are seeking a hands‑on cryptography expert who enjoys solving complex security challenges and translating theoretical cryptography into robust, real‑world implementations.

Key Responsibilities

• Provide expertise on the development of cryptographic algorithms and protocols for secure communications and networking devices
• Evaluate and select appropriate cryptographic primitives and standards (e.g., symmetric, asymmetric, hash‑based, and post‑quantum algorithms)
• Perform threat modeling, security analysis, and cryptographic risk assessments
• Review and optimize cryptographic implementations for performance, scalability, and hardware constraints
• Support secure key management, certificate infrastructures, and lifecycle management
• Share technical guidance, documentation, and knowledge transfer to internal teams
• Stay current with emerging cryptographic research, standards, and vulnerabilities

Preferred Qualifications

• Experience with hardware security modules (HSMs), secure elements, or trusted execution environments
• Familiarity with post‑quantum cryptography and emerging standards
• Experience with compliance‑driven security environments (e.g., FIPS, Common Criteria)
• Background in performance optimization for cryptographic operations on constrained devices
• Experience supporting mission‑critical projects and demanding clients
• Interest in building new technology

Location: Hybrid or Remote

Technical Advisor – Various Domains

We are seeking Technical Advisors with expertise in the following domains:

• Information & Communications Technology (ICT)
• Information Security
• Smart City Infrastructure
• Satellite / Space Communications
• Financial Technology (FinTech)
• Geographic Information Systems (GIS)
• Quantum Computing

Responsibilities

• Research and analyze technology alternatives and recommend solutions for each project
• Partner with the executive team to provide in-depth analysis to define technical issues and develop innovative options
• Serve as the technical coach to Searchers on the technologies relevant to their projects
• Engage with industry experts to understand emerging technological trends
• Perform technical due diligence on portfolio company technology

Qualifications

• Advanced degree in a related field, along with substantive work experience
• Experience leading or supporting engineering teams, projects and/or vendor relationships.
• Prior experience with emerging technologies, constantly evaluating and recommending potential partnerships that provide efficiencies and competitive advantage within your domain
• Prior experience in a small or mid-size company with a technological focus
• Solid organization and communication skills
• Skilled at collaborating with others and comfortable navigating at any level of a company

Location: Hybrid or Remote