Senior Cloud Security & Cryptography Engineer (Remote)

CACI International Inc; United States; Hybrid; USD 151,000 - 202,000; Full time

Job summary

CACI International Inc is seeking a Senior Cloud Security & Cryptography Engineer to lead cryptographic solutions in a large-scale cloud environment, focusing on secure key management and hardware-backed security. The role supports SOCEUR HTAP with emphasis on cryptographic integrity and scalable architectures.

You will design and deploy KMS, HSM-backed services, TEEs, and client-side encryption, collaborating across teams to ensure robust security controls and compliant operations in a

Qualifications

• BS in Computer Science, or equivalent practical experience in data structures and software security.
• 8+ years of industry experience in software development or cloud infrastructure engineering.
• 5+ years of advanced proficiency in general-purpose languages like Python, C, C++, Java, or Go.
• 5+ years’ experience designing and developing large-scale, distributed infrastructure or highly secure operating environments.
• 5+ years’ experience with cryptographic algorithms, Public Key Infrastructure (PKI), TLS/SSL, authentication protocols, and threat modeling.
• 3+ years of Google Cloud Identity, OAuth/SAML, Keycloak, and Google Workspace SSO integration.
• 3+ years of experience in Agile team roles supporting security and cryptographic projects.

Responsibilities

• Build foundational backend services used by Cloud customers and internal systems to secure, rotate, and manage cryptographic keys (e.g., Cloud Key Management Service).
• Architect and scale HSM-backed services to meet enterprise compliance and high-availability requirements.
• Design cryptographic and secret management solutions, manage key lifecycles, and handle encryption schemes (e.g., CKE or EKM).
• Design and deploy environments like Confidential VMs and TEEs to protect data in use.
• Implement client-side encryption for cloud services and ensure mutually authenticated TLS 1.3 communications.

Skills

Python

C

C++

Java

Go

Top Secret/SCI

Education

BS in Computer Science

Tools

Terraform

Google Cloud Identity

OAuth/SAML

Keycloak

Job description

CACI International Inc is seeking a Senior Cloud Security & Cryptography Engineer to lead cryptographic solutions in a large-scale cloud environment, focusing on secure key management and hardware-backed security. The role supports SOCEUR HTAP with emphasis on cryptographic integrity and scalable architectures.

You will design and deploy KMS, HSM-backed services, TEEs, and client-side encryption, collaborating across teams to ensure robust security controls and compliant operations in a