public CV
Francisco Javier Puig Díaz | IT Infrastructure & DevSecOps Support Engineer
Reading U.K. | Sevilla Spain | fluent in English, German, Spanish and Italian
🖥 www.linkedin.com/in/javierpuigdiaz ✉ javier.puig.diaz@gmail.com ☎ 0790 208 4887
Professional Summary
IT Solutions Architect and Systems Integration / Support Engineer with over 25 years of EMEA experience. Specialises in modernising legacy workflows, infrastructure provisioning, and deploying highly available, secure environments. Expertise in design and support of multi-node pve datacentre virtualisation, Kubernetes, Docker, and DevSecOps collaboration to scale, automate, and secure enterprise-wide operations.
Key Skills & Expertise
• Virtualisation & Containers: Proxmox VE (Clustered Datacenters), Kubernetes, Docker, LXC, VM Operations.
• Infrastructure & Automation: CI/CD Pipeline Support, Declarative Environment Provisioning, Python, JavaScript, Shell Scripting and adherence to git principles.
• Networking & Security: WireGuard & Tailscale VPNs, Server Hardening, VLANs, Site-to-Site Architecture, Enterprise Switching/Routing.
• IT Operations: Datacenter Clustering, Legacy-to-Modern Migrations, Local AI Model Deployment, Multilingual Enterprise Support.
Professional Experience
BOOKS etc. Ltd. E-Commerce & Supply Chain Logistics Sector | 2025 – Present
Senior IT Infrastructure & Operations Automation Engineer & DevSecOps Support
• Engineered and maintained resilient IT operations, modernising legacy supply chain structures into streamlined, automated deployment pipelines.
• Designed and managed multi-node Proxmox Virtualisation Environments (PVE), optimising compute/storage allocation and partnering with software development teams to accelerate application provisioning.
• Deployed secure, hard-isolated remote access architectures, implementing site-to-site bastion-servers / VPN solutions to safely bridge distributed network landscapes.
• Developed custom integration and automation scripts using Python and JavaScript, reducing operational friction and minimising manual deployment errors.
• Managed physical and digital deployments of warehouse technology, including hardware prototyping and engineering proof-of-concept setups.
SAP UK Ltd. | 2010 – 2023
Senior Support Engineer (EMEA)
• Specialised in SAP BI & SAC deployments, resolving complex technical issues for medium-to-large enterprise clients across the EMEA region.
• Administered RedHat Linux environments and supported early-stage Docker and Kubernetes cloud integrations.
• Collaborated on enterprise DevOps initiatives
• Facilitated comprehensive technical training sessions to elevate team capabilities.
HP UK Ltd. | 2009 – 2010
Network Support Engineer
• Resolved complex networking incidents involving VLANs, APs, and wireless security protocols for EMEA clients across 3Com/HP products, improving first-call resolution rates and reducing escalations.
Self-Directed Technical Research & Lab Deployment | 2023 – 2025
Independent Professional Development & Sabbatical
• Engineered local, self-hosted AI models and orchestrated automated LLM implementations within private lab infrastructure.
• Designed and deployed secure, multi-node Proxmox VE clusters, containerised micro-services (Docker, LXC), and complex systemd automation tasks.
• Constructed declarative environment provisions and orchestrated API integrations to modernise legacy tech stacks.
Early Career Highlights | 1996 – 2009
Various Organisations (ECAP Zentralschweiz AG/GmbH, Dipl. Ing. Fust AG/GmbH, Siruela y Toscano S.L., Corel UK Ltd. and 3Com UK Ltd.)
• Held progressive technical roles including Store Manager, Technical Support Specialist, and IT Teacher.
• Directed end-to-end IT support and store operations, increasing service revenue through efficient PC builds and maintenance.
• Managed Windows/Linux server environments (Active Directory, LDAP, CA, DNS, DHCP, XAMPP...) and delivered multilingual software and hardware troubleshooting.
Education & Certifications
• BTEC HND: Computer Systems Engineering (FPII) I.E.S. Gonzalo Nazareno Dos Hermanas (Sevilla), Spain 2005
• Goethe-Zertifikat C2: Großes Deutsches Sprachdiplom (GDS) Dolmetscherschule Zürich, Switzerland 1999
• H3C 3Com Network Support Engineer (Hardware) 3Com/HP UK Ltd. Hemel Hampstead, U.K. 2009
• Senior Product Support Engineer (Software) SAP UK Ltd. Maidenhead, U.K. 2018