Technology Architect - Infrastructure Architect (Capacity & Performance, Multi-Platform) - London/Warwick), UK

Role Overview: The Infrastructure Architect will be responsible for designing, optimizing, and managing enterprise IT infrastructure across Compute (AIX/Linux, Windows/VMware), Storage, and Network domains, with strong focus on capacity planning, performance engineering, and operational resilience., 1. Infrastructure Architecture & Design

• Define and maintain end-to-end infrastructure architecture across:

• Compute (IBM AIX, Linux, Windows)
• Virtualization (VMware - ESXi, vCenter)
• Storage (SAN/NAS, backup platforms)

• Network (LAN/WAN, DC networking)

• Provide architectural solutions for scalable, resilient, and secure infrastructure platforms
• Ensure alignment with enterprise standards, CMDB, and configuration management practices.

1. Capacity Planning & Management * Perform capacity forecasting for compute, storage, and network resources * Analyze trends for CPU, memory, storage, IO, and network utilization * Recommend and implement capacity optimization strategies * Collaborate with application, DB, and infra teams for growth planning.

2. Performance Engineering & Optimization * Lead performance analysis and tuning across AIX/Linux/Windows and VMware environments * Identify bottlenecks across: * CPU, memory, disk IO, network throughput

• Optimize workloads using tools/technologies (e.g., monitoring, alerting platforms as referenced in infra monitoring scope)
• Drive proactive performance improvement initiatives

1. Compute Platform Leadership (AIX / Windows / VMware) * Oversee:

• AIX (POWER, LPAR, PowerVC environments)
• Windows Server & Active Directory
• VMware infrastructure lifecycle (ESXi, vCenter, clusters)

• Support activities including:

• OS monitoring, patching, lifecycle management
• VM provisioning, decommissioning, and performance tuning.

1. Storage & Backup Architecture * Design and manage SAN/NAS storage environments * Optimize storage performance (IOPS, throughput, latency) * Lead backup/recovery strategy and disaster recovery alignment * Work with tools like enterprise backup (e.g., Spectrum Protect, etc. based on environment patterns)

2. Network Architecture & Integration * Define and review:

• Data center networking, routing/switching

• Connectivity between compute, storage, and application layers

• Work closely with network architects for performance troubleshooting
• Ensure network supports infrastructure scalability and HA needs

1. Monitoring, Automation & Reliability * Implement and enhance monitoring solutions for infra health, alerts & performance * Drive automation for:

• Provisioning
• Capacity reporting
• Performance tuning
• Improve observability across infra stack

1. Incident, Problem & Change Management * Lead resolution of complex L2/L3 infrastructure issues * Drive root cause analysis for recurring performance issues * Work within ITIL processes (Incident, Problem, Change)

2. Disaster Recovery & High Availability * Design DR/HA solutions for critical infrastructure * Ensure infrastructure readiness for failover scenarios * Periodically validate DR drills

Do you have experience in vSphere?, Core Technical Skills

• Compute

• IBM AIX (LPAR, Power systems, PowerVC)
• Linux (RHEL)
• Windows Server & AD
• Virtualization
• VMware (vSphere, ESXi, vCenter, HA, DRS)
• Storage & Backup
• SAN/NAS, replication, backup solutions
• Networking
• LAN/WAN, routing/switching, DC networking
• Monitoring & Tools
• Infrastructure monitoring, alerting tools, performance tools

Functional Expertise

• Strong experience in:

• Capacity planning & trending
• Performance analysis & tuning
• Infrastructure optimization
• ITIL process awareness (Incident, Change, Problem)

Experience

• 10-15+ years of experience in infrastructure architecture / engineering
• Proven experience in large enterprise environments (multi-DC, hybrid infra)

Soft Skills

• Strong stakeholder management (cross teams: storage, network, apps)
• Excellent problem-solving & analytical skills
• Ability to lead design discussions and technical governance

Infosys is a global leader in next-generation digital services and consulting. We enable clients in 46 countries to navigate their digital transformation. With over three decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation ecosystem.