Senior Cloud Security – Cryptography Engineer

Job not on LinkedIn

🕒 July 16

🇺🇸 United States – Remote

💵 $114.6k - $252.1k / year

⏰ Full Time

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 35%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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CACI International Inc

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1962

🎖️ Defense

🏛️ Government

🔒 Cybersecurity

🔥 Funding within the last year

💰 $500M Post-IPO Debt on 2026-02

Defense • Government • Cybersecurity

CACI International Inc is a U. S. -based government contractor that provides technologies and professional services to national security, defense, and federal civilian customers. CACI delivers solutions across cyber and digital operations, enterprise IT modernization, electronic warfare, counter-unmanned systems (C-UxS), space and optical communications, agile DevSecOps software development, and mission engineering and logistics support. The company positions itself as a large prime contractor that uses advanced software, analytics, sensing, and hardware to detect and counter evolving threats and modernize government technology architectures.

📋 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