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Ernst & Young

Global professional services: consulting, assurance, tax

Associate Director Quantum Technologies

Security Engineering & ArchitectureUpdated on Nov 14
Full-time$159.3k - $358.4kIn-person

About the Job

Requirements

  • Deep expertise in post-quantum cryptography, crypto-agility, cryptographic governance, enterprise architecture, quantum-risk assessment and migration strategy.
  • Strong delivery experience across public key infrastructure, certificate lifecycle management, key management systems, hardware security modules, identity and access management, Transport Layer Security, Secure Shell, signing, secure networking, encryption and cryptographic lifecycle management.
  • Knowledge of lattice-based, code-based and hash-based cryptography; algorithm implementation, protocol engineering, side-channel considerations and testing.
  • Experience with cryptographic discovery, inventory design, dependency mapping, prioritization, vendor evaluation, benchmarking and proof-of-concept delivery.
  • Ability to lead globally distributed, multidisciplinary teams and balance scientific rigor, engineering feasibility, security and market value.
  • Significant experience in cybersecurity, cryptography, quantum technologies, enterprise architecture, technical product leadership or advanced computing, including responsibility for complex programs and senior stakeholders.
  • Demonstrated delivery in post-quantum cryptography readiness, cryptographic discovery, public key infrastructure or key-management modernization, protocol engineering, encryption services or quantum-safe transformation.
  • Experience creating architecture blueprints, standards, policies, roadmaps, proposals, patents, research outputs, executive materials or commercial offerings.

Responsibilities

  • Lead enterprise quantum-risk and post-quantum cryptography readiness assessments across governance, data, applications, infrastructure, cryptographic assets, third parties and operating models.
  • Define quantum-safe strategies, target-state architectures, prioritized roadmaps and migration plans aligned to business criticality, data sensitivity, regulation and technology dependencies.
  • Direct cryptographic discovery, inventory and dependency-mapping initiatives covering certificates, keys, algorithms, protocols, libraries and services.
  • Lead modernization across public key infrastructure, certificate lifecycle management, key management systems, hardware security modules, identity and access management, secrets management, Transport Layer Security, Secure Shell, virtual private networks, signing and enterprise encryption.
  • Design crypto-agile governance and engineering patterns that support hybrid deployment, algorithm replacement and phased migration.
  • Guide evaluation, benchmarking, piloting and implementation of post-quantum cryptography algorithms, including ML-KEM, ML-DSA and SLH-DSA, with awareness of Falcon, Classic McEliece and other advanced approaches.
  • Assess implementations for protocol fit, interoperability, performance, side-channel exposure, certificate and key impacts, compliance and operational risk.
  • Advise executives on Shor's and Grover's algorithms, harvest-now-decrypt-later exposure, supplier readiness and third-party migration roadmaps.
  • Maintain strong knowledge of the post-quantum cryptography and quantum-security vendor landscape, including cryptographic discovery, migration, secure communications, quantum key distribution, quantum random number generation and enabling technologies.
  • Evaluate vendors for maturity, strategic fit, interoperability, security, performance, architecture, product roadmap, implementation requirements and commercial potential.
  • Advise clients on market scans, build-buy-partner decisions, requests for information, proofs of concept and technology selection.
  • Maintain familiarity with relevant ecosystem participants such as IBM, Microsoft, NVIDIA, Quantinuum, SandboxAQ, PQShield, Q-CTRL and other established and emerging providers.
  • Monitor and interpret developments from NIST, ETSI, IETF, ISO or IEC, FIPS and relevant regulatory or industry initiatives.
  • Build relationships with technology providers, startups, academic institutions, standards bodies, national programs and industry consortia.
  • Lead complex, multi-workstream engagements from opportunity shaping and mobilization through delivery, executive readout and implementation planning.
  • Own scope, quality, financial performance, staffing, risks, dependencies, governance and stakeholder expectations across global teams.
  • Build trusted relationships with CIOs, CISOs, CTOs, Chief Risk Officers, enterprise architects and data-protection leaders.
  • Shape go-to-market strategy and offerings for quantum-risk assessment, cryptographic discovery, crypto-agility, post-quantum cryptography migration, quantum-resistant networking and quantum cyber defense.
  • Translate research, patents, prototypes and vendor capabilities into repeatable services, accelerators, reference architectures, demonstrations and business cases.
  • Lead and mentor multidisciplinary teams of cryptographers, architects, engineers, researchers, product specialists and consultants.
  • Produce executive-ready proposals, roadmaps, architecture blueprints, standards, whitepapers and thought leadership; represent EY in relevant industry forums.
  • Maintain sufficient knowledge of quantum computing to identify credible use cases and connect quantum safety strategy with the broader quantum ecosystem.
  • Guide selective proofs of concept in optimization, simulation or quantum machine learning, ensuring defensible classical baselines, benchmarking and business-value assessment.
  • Provide working familiarity with QAOA, VQE, hybrid classical-quantum architectures and platforms such as Qiskit, PennyLane, Amazon Braket or CUDA-Q.

Desired Qualifications

  • Proficiency in Python.
  • Familiarity with C or C++, cloud-native architecture, application programming interfaces, containers, continuous integration and continuous delivery, or accelerated computing.
  • Experience in consulting, technology, research, government or product organizations and in regulated or critical-infrastructure sectors.
  • Relevant security, cryptography, cloud, architecture or quantum certifications.

About the Company

Ernst & Young

Global professional services: consulting, assurance, tax

EY (Ernst & Young) provides professional services at a global scale, offering consulting, assurance, tax, and transaction advisory services. It serves clients across industries such as technology, media, real estate, hospitality, and construction. Instead of selling a single product, EY works with clients through tailored engagements where cross-disciplinary teams analyze challenges, design strategies, perform audits, help with tax planning, and assist with mergers or divestitures. What sets EY apart is its worldwide reach and integrated service model, industry-specific expertise, and focus on responsible business practices like sustainability, cybersecurity, and workforce flexibility. EY’s goal is to help organizations improve performance, manage risk, and achieve sustainable growth while building a better working world.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Boston, MA
Founded
1991

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