Post-Quantum Cryptographer

GaaS 

📍 CA, United States 🇺🇸

full-time
lead
on-site
Posted —

Key Skills

CryptographyCC++RustAlgorithmsMathematics

Industry

Security & SurveillanceAerospace

Job Description

Cryptographic integrity is foundational to everything GaaS does; the layer that authenticates and safeguards autonomous AI actions has to be sound long before the quantum era tests it. That standard is already built into our infrastructure, and we are strengthening the team that holds it.

GaaS is hiring a Lead Post-Quantum Cryptography Engineer to advance our migration to NIST-standardized PQC algorithms and refine the hybrid schemes that carry high-stakes AI transactions through the transition. You will join engineers who already think in these terms; your work sharpens a discipline we have been serious about from the start.

This is for the engineer who thinks in decades; who wants their cryptography standing long after the quantum era opens, protecting decisions that were made autonomously and had to be right.
If that is the caliber of problem you have been waiting for, GaaS is where it lives.

GaaS provides an independent governance layer for AI agents, ensuring that consequential actions such as transactions, communications, and system operations are compliant, verified, and auditable. The platform routes every significant agent action through a five-stage pipeline, delivering regulatory compliance, policy enforcement, and cryptographic audit records with sub-100-millisecond latency. By externalizing governance and risk evaluation, GaaS lets engineering teams focus on building agents while GaaS handles oversight, context enrichment, and contradiction resolution.

AI agents benefit from reclaimed context window capacity, better information, clearer authority, and trusted credentials that enable access to governed workflows.
Role Description The Post-Quantum Cryptographer will design, analyze, and implement post-quantum cryptographic primitives and protocols that underpin GaaS’s governance and audit infrastructure. Day-to-day responsibilities include researching emerging post-quantum schemes, performing cryptanalysis on candidate constructions, and collaborating with engineering teams to integrate secure algorithms into production systems.

The role involves modeling threats, evaluating protocol security under realistic adversarial conditions, and contributing to standards-aligned designs that support high-throughput, low-latency decision pipelines. This is a full-time, on-site role based in Encinitas, CA, working closely with product, security, and infrastructure teams to ensure robust, future-proof cryptographic foundations for AI agent governance.
Qualifications

  • Strong foundation in Cryptography and Cryptanalysis, including familiarity with post-quantum schemes and modern protocol design.
  • Expertise in Mathematics relevant to cryptography (e.g., number theory, algebra, discrete mathematics, probability and statistics).
  • Background in Computer Science, including algorithms, data structures, complexity theory, and secure systems implementation.
  • Knowledge of Authentication mechanisms, identity management, and secure key management practices.
  • Proficiency in one or more programming languages commonly used for cryptographic implementation (such as C/C++, Rust, Go, or Python).
  • Experience with formal methods, security proofs, or protocol verification tools is highly beneficial.
  • Familiarity with relevant standards and initiatives (e.g., NIST post-quantum cryptography efforts) and practical deployment considerations.
  • Advanced degree in Computer Science, Mathematics, Cryptography, or a related field, or equivalent practical experience in applied cryptography.
  • Ability to communicate complex technical concepts clearly, collaborate across disciplines, and document designs for both technical and non-technical stakeholders.