Senior Cloud Security – Cryptography Engineer

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CACI International Inc

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1962

🔒 Cybersecurity

Defense • IT • Cybersecurity

CACI International Inc is a diversified company that provides a wide range of services and solutions primarily to the U. S. government and commercial sectors. CACI specializes in offering security services, IT solutions, and intelligence support, helping clients enhance their cyber capabilities and secure their networks. The company is recognized for its innovative workforce and the technology it provides to clients in enterprise and mission-critical environments. CACI is committed to diversity and inclusion, offering an array of career opportunities for both new graduates and experienced professionals, including veterans.

📋 Description

• Develop solutions to operate in a large-scale infrastructure cloud environment securely supporting Special Operations Command Europe (SOCEUR) Hybrid Threat Action Platform (HTAP) • Facilitate the deployment of software-defined networking, advanced security controls, and cryptographic capabilities • Engineer and develop solutions supporting web and mobile applications, machine learning, and big data • Build foundational backend services used by Cloud customers and internal Google systems to secure, rotate, and manage cryptographic keys • Work across all layers of the production stack, from high-level Cloud APIs down to low-level operating systems • Architect and scale HSM (Hardware Security Module) backed services to meet compliance and high-availability requirements • Design cryptographic and secret management solutions, manage key lifecycles, and handle encryption schemes • Design and deploy environments like Confidential VMs and Trusted Execution Environments (TEEs) • Design robust, reliable data-centric security and authentication protocols across global cloud data centers • Implement Client-Side Encryption (CSE) for Google Workspace and ensure mutually authenticated TLS 1.3 communications

🎯 Requirements

• Active Top Secret/SCI • BS in Computer Science, or equivalent practical experience • 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 • Strong programming proficiency in languages such as C++, Go, or Python • At least 3 years of experience in security and cryptographic engineering • At least 3 years of experience in Agile team roles supporting security and cryptographic projects • At least 3 years of experience with PKI, Key Management, and certificate lifecycle processes • GCP Professional Cloud Security Engineer certification • GIAC Python & Cryptography (GPCS / GCIP) certification • CCSP (Certified Cloud Security Professional) certification • CISA (Certified Information Systems Auditor) certification.

🏖️ Benefits

• healthcare • wellness • financial support • retirement plans • family support • continuing education • time off benefits