Junior Infrastructure, Cloud & Security Engineer at caciltd

Location: London, England
Type: Full-time
Level: entry
Posted: Aug 12, 2026

Description

CACI is hiring a Junior Infrastructure, Cloud & Security Engineer for its central Technology function. The early-career role supports AWS cloud environments, Cisco and Meraki networking, firewalls, VPNs, Linux and Windows Server infrastructure, cybersecurity, vulnerability management, ISO27001 compliance, troubleshooting, documentation, and infrastructure projects. Candidates may gain relevant experience through employment, apprenticeships, education, home labs, or personal projects; certifications such as Network+, Security+, AWS, Cisco CCNA, Linux, or Azure Fundamentals are relevant.

Required Skills

AWS
Cisco networking
Linux administration
TCP/IP networking
Network security
Active Directory
Vulnerability management
ISO27001 compliance
Scripting automation
Troubleshooting

Additional Information

Required Previous Experiences: Relevant experience through employment, apprenticeships, education, home labs, or personal projects in networking, Linux administration, cloud technologies, infrastructure support, or cybersecurity.
Preferred Qualifications: Experience with Cisco networking equipment, Check Point firewalls, AWS or Azure cloud services, VPN technologies, Web Application Firewalls, ISO27001 environments, monitoring and security tools, and Infrastructure-as-Code concepts.
Relevant certifications such as CompTIA Network+, CompTIA Security+, AWS Certified Cloud Practitioner, AWS Solutions Architect Associate, Cisco CCNA, Linux Essentials or LPIC-1, and Microsoft Azure Fundamentals.
Strong troubleshooting, analytical, communication, teamwork, proactive learning, and documentation skills.