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HSM/Crypto Custody Engineer

ApTaskDallas, TX🇺🇸United StatesPosted 11 Aug 2026

Why This Role Stands Out

Advance your career in a hybrid environment building cutting-edge HSM-backed signing infrastructure, where your expertise in cryptography and key management will directly contribute to secure self-custody platforms. This role is ideal for experienced engineers passionate about the intersection of security, blockchain, and robust system architecture, offering significant opportunities for growth and impact within a respected company. Apply today to join a team that values innovation and technical excellence.

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

HSM/Crypto Custody Engineer

Fulltime

Austin, TX/Dallas, TX

Job Summary

HSM/Crypto Custody Engineer with hands-on experience in building and operating HSM-backed signing infrastructure for self-custody platforms. Experience in crypto exchanges or institutional custody is required.

Years of experience needed 5+ years

Technical Skills:

Primary Skills:

  • HSM Platforms: Thales Luna, AWS CloudHSM, Utimaco, Ledger Enterprise
  • Protocols: PKCS#11, JCE/JCA, REST/gRPC
  • Key Management: BIP32/44, MPC, Shamir Secret Sharing
  • Cryptography: ECDSA (secp256k1), EdDSA, threshold signatures
  • Architecture: HSM clustering, geo-redundancy, quorum controls
  • ATS Integration: Low-latency signing, high throughput
  • Compliance: FIPS 140-2 Level 3, SOC 2 Type II
  • Custody: Key ceremonies, cold/warm/hot wallets
  • Agile methodology
  • AI/Automation skills

Secondary Skills:

  • Cloud Platforms (AWS, Google Cloud Platform)

Key Responsibilities

  • HSM Engineering: Build and operate secure key management and signing systems
  • Transaction Signing: Ensure low-latency, high-throughput processing
  • Key Management: Secure key generation, storage, and lifecycle
  • Architecture: Design resilient, geo-redundant HSM solutions
  • Custody Platform: Implement wallet and custody architecture
  • Security & Compliance: Adhere to FIPS and SOC standards
  • Risk Management: Prevent key compromise and failure scenarios
  • Collaboration: Work with ATS and architecture teams
  • Problem Solving: Troubleshoot performance and cryptographic issues
  • Mentorship: Guide team members

.

Skills

Agile

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