About the job We currently have an exciting opportunity for a Senior VCF Engineer to join our existing experienced team. The Mission: You will be the technical engineering lead for the deployment and operation of a high-assurance VMware Cloud Foundation (VCF) 9.x private cloud, building upon SiXworks' existing private cloud patterns. Location: Onsite in South West England. What do we look for in a Senior VCF Engineer? Key VMware-Specific Responsibilities: VCF 9.x Orchestration: Lead the end-to-end deployment of Management and Workload Domains using SDDC Manager, VCF Operations and VCF Installer (Cloud Builder). NSX Networking & Security: Design and implement complex virtual networking topologies, including Tier-0/Tier-1 gateways, load balancing, and Distributed Firewall (DFW) micro-segmentation policies. VCF Operations (previously Aria Suite) Management: Configure and tune the VCF Operations Suite for proactive operations, log insights, and automation (e.g. Aria Automation/Orchestrator). Storage Integration: Partner with the team to map NetApp ONTAP storage ensuring performance and path redundancy. Lifecycle Management (LCM): Own the patching and upgrade cycles for the entire stack (ESXi, vCenter, NSX, Aria) using VCF’s integrated LCM workflows to ensure "Continuous Compliance." Identity Consumption: Work with our wider high assurance system to secure authentication for all management planes. Essential Technical Experience: Expert-level knowledge of VMware VCF (v8.x/9.x), including SDDC Manager and multi-site/multi-cluster architectures. Deep expertise in VMware NSX, specifically focused on security-driven networking and overlay-to-underlay integration. Proficiency in Aria Operations, Aria Operations for Logs, and Aria Automation. Experience operating in UK High-Security environments (MOD, Gov, or National Infrastructure). Certifications (Preferred): VCP-VMC (VMware Certified Professional - VMware Cloud) VCIX-NV (VMware Certified Implementation Expert - Network Virtualization About SiXworks SiXworks is a leading provider of secure digital solutions, specialising in digital experimentation and focused on fail-safe-fast cutting-edge technology solutions deployed in highly secure environments. We are unified in our mission to accelerate innovation and adoption of secure, digital technology to improve the operational agility of Defence and National Security. This is an exciting time for us, we have ambitious plans for continued growth and development, and we are seeking to add brilliant, experienced, motivated, and passionate people to our team to work with us on this journey. Why join SiXworks? SiXworks’ expertise includes Secure-by-Design, cloud computing, advanced network and infrastructure design, rapid application development, cross-security domain systems, multi-tenanted High-Performance Compute, multi-source data platforms, cyber vulnerability mitigation, and intelligence systems. We provide supplier-agnostic, technical, and business consultancy to customers while championing open-source and best-of-breed technologies. A word on UK Security Clearance Due to the secure nature of the position and working environment, you must have, or be eligible to obtain Security Clearance. More details relating to UK Security Clearance can be found here: United Kingdom Security Vetting: clearance levels - GOV.UK (www.gov.uk) SiXworks is an IBM subsidiary which has been acquired by IBM and will be integrated into the IBM organisation. SiXworks will be the hiring entity. By proceeding with this application, you understand that SiXworks will share your personal information with other IBM subsidiaries involved in your recruitment process, wherever these are located. More Information on how IBM protects your personal information, including the safeguards in case of cross-border data transfer, are available here: https://www.ibm.com/privacy