Hamilton Barnes

SC Cleared CTL Pen Tester - Fully Remote - Outside IR35 Role Overview We are looking for a SC Cleared CTL Penetration Tester to join on a contract basis, delivering expert-level penetration testing across cloud environments, containerised infrastructure, and CI/CD pipelines. The role requires deep hands-on offensive security experience across AWS and Azure platforms, Kubernetes environments, and modern DevSecOps pipelines - operating within a regulated, security-cleared environment. Key Responsibilities Plan and execute penetration tests across AWS and Azure cloud environments, identifying vulnerabilities in cloud-native services, configurations, IAM policies, and network architecture Conduct penetration testing and security assessments across Kubernetes clusters and containerised workloads, identifying misconfigurations, privilege escalation paths, and container escape risks Assess CI/CD pipeline security, identifying weaknesses in build and deployment...

Role Overview I'm currently supporting a leading global organization that is looking to hire an experienced Level 3 Voice Operations Engineer to join a major enterprise voice and collaboration team supporting critical global infrastructure. This is a hands-on engineering role focused on Voice Operations Projects and working across the full voice estate from user endpoints through to carrier integrations. You'll be involved in project delivery, life cycle management, upgrades, troubleshooting and operational acceptance of new deployments within a large-scale enterprise environment. Key Responsibilities Provide Level 3 support for global voice infrastructure and unified communications platforms. Deliver Voice Operations projects alongside ongoing operational support. Perform advanced troubleshooting, root cause analysis and remediation across enterprise voice environments. Support Cisco Unified Communications infrastructure from IP endpoints through to carrier...

Python Developer- 12 months | Ipswich (Hybrid - 3 days per week) We're recruiting for 3x Python Developers to build and maintain automation solutions, Back End services, and tooling supporting large-scale telecom network operations for a leading telecom organisation. The role involves developing REST APIs, automation scripts, and data-driven applications enabling testing, monitoring, and operational efficiency across 5G and enterprise platforms, working closely with QA, network engineering, and DevOps teams. Key Responsibilities Develop and maintain Python-based automation frameworks and scripts for network testing, data processing, and operational workflows Design and build RESTful APIs using Flask or FastAPI for internal tooling and cross-team integration Design and work with SQL and NoSQL databases for test data, configuration, and results management Build and maintain Docker containers for application packaging, deployment, and isolated testing environments...

Senior OCVS Platform Engineer - 12-Month Contract - Inside IR35 - Hybrid (Bradford, 3 Days Onsite) We are looking for an experienced Senior OCVS Platform Engineer to support a large-scale Oracle Cloud VMware Solution (OCVS) transformation programme, migrating thousands of virtual machines from on-premises infrastructure into Oracle Cloud. Key Responsibilities Lead large-scale migrations from on-premises VMware environments to Oracle Cloud VMware Solution (OCVS) Design and configure hybrid cloud environments using VMware HCX Manage VMware infrastructure including vSphere, vCenter, vSAN, NSX-T, and OCI networking Perform VM migrations, network reconfiguration, and re-IP activities with minimal business disruption Troubleshoot complex infrastructure issues and provide technical leadership throughout the migration programme Key Skills Required Strong hands-on experience with Oracle Cloud VMware Solution (OCVS) or similar VMware cloud platforms Expertise...