Senior Security Engineer – Cryptography & Confidential Computing

**This is a direct-hire role with a client of ours based in Arlington, VA. The position requires a minimum of two days per week onsite. Relocation assistance is available for candidates interested in permanently moving to the Arlington, VA area or nearby regions. Please note relocation interest in your application. Applicants must be authorized to work in the United States without sponsorship.**

Join a fast-scaling technology company building the secure foundation for tomorrow’s AI and high-performance computing systems. As a Security Engineer, you’ll design and implement next-generation cryptographic and hardware attestation systems that protect cutting-edge workloads running on advanced GPU and confidential computing platforms. This is a rare opportunity to work at the intersection of deep systems engineering, applied cryptography, and emerging hardware security; helping shape how secure AI infrastructure is built from the ground up.

Responsibilities

• Cryptographic Infrastructure (40%): Design and implement encryption systems (AES-256, RSA); manage DEK lifecycle, secure key destruction, and envelope encryption; build cryptographic protocols ensuring keys remain within secure boundaries.

• Hardware Attestation Systems (35%): Develop Intel TDX and NVIDIA GPU attestation workflows; integrate Intel Trust Authority and NVIDIA NRAS services; implement quote assembly, attestation validation, and certificate verification.

• Secure Service Architecture (20%): Build secure RESTful validator services and communication protocols; design enclave communication patterns; implement audit logging and security monitoring.

• Security Research & Compliance (5%): Stay current on confidential computing threats and mitigations; research post-quantum cryptography readiness; document threat models and multi-party attestation policies.

Qualifications

• 5+ years in applied cryptography or security engineering

• Strong understanding of symmetric/asymmetric encryption, PKI, and digital signatures

• Experience with Trusted Execution Environments (Intel SGX/TDX, AMD SEV, ARM TrustZone, etc.)

• Systems programming experience in Go, Rust, or C++

• Experience with HashiCorp Vault or similar key management systems

• Familiarity with OAuth, JWT, mTLS, and secure cloud architectures

Preferred Skills

• Hands-on experience with Intel TDX, AMD SEV, or NVIDIA Confidential Computing

• Background with Hardware Security Modules (HSMs)

• Applied cryptography or security research experience (e.g., publications, CVEs)

• Exposure to regulated industries such as healthcare, finance, or computational chemistry

• Technical leadership or mentorship experience

Technical Environment

Languages: Go (primary), Rust, Python, C++
Security Stack: HashiCorp Vault, Intel Trust Authority, NVIDIA NRAS
Platforms: Intel TDX, NVIDIA Confidential Computing, Linux VMs
Infrastructure: Kubernetes, Docker, cloud environments

Growth Opportunities

• Architect security for next-generation AI infrastructure

• Contribute to confidential computing and AI security standards

• Develop into a technical leader as the security team expands

Our Vetting Process

At Emergent Staffing, we work hard to find the software engineers who are the right fit for our clients. Here are the steps of our vetting process for this position:

1. Application (5 minutes)

2. Online Assessment (40-60 minutes)

3. Initial Video Interview (30-45 minutes)

4. Client On-site Interview (60 minutes)

5. Job Offer!

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