Comgent

Manager

• Establish portfolio management function for network and infrastructure domain
• Build and maintain inventory of network and infrastructure products
• Develop portfolio view for decision-making across contracts
• Define and manage lifecycle plans for key assets
• Lead vendor rationalisation to reduce supplier base
• Manage circuit and connectivity contracts
• Provide commercial input into procurement process
• Support budget planning and financial reporting for the domain

Technology Product & Portfolio Manager – Network & Infrastructure, Freelance

Security Engineer

• Establish security architecture governance at the infrastructure level
• Define and document infrastructure security architecture standards and principles aligned to industry frameworks
• Review and provide security sign-off on network and infrastructure designs as part of the transformation programme
• Identify security gaps across the current environment (network, server, voice, hosting) and produce a prioritised remediation roadmap
• Work with the CISO function to establish technical security policies where none currently exist
• Evaluate and rationalise the existing security tooling estate (firewalls, network security tools, monitoring)
• Provide guidance on firewall architecture (Palo Alto migration from ASA, segmentation strategy)
• Advise on secure cloud architecture and landing zone design for hybrid/multi-cloud environments
• Support procurement and vendor selection with security assessment criteria

Security Architect – Infrastructure & Network Security

Network Engineer

• Audit and document the existing network estate (~1,000 devices across both banking entities)
• Identify and remediate non-standard routing configurations, including atypical EIGRP deployments
• Define and implement standardised change categories, change risk classifications, and change management templates
• Support the transition from hybrid ACI to target-state architecture
• Develop network documentation and operational runbooks
• Provide detailed input into the network baseline assessment
• Act as a subject matter expert during change approval board (CAB) reviews
• Work with managed service providers to ensure designs and standards are followed during implementation.

Senior Network Engineer – Routing & Switching Specialist

Architect

• Define a comprehensive hosting strategy spanning on-premises, hyperscaler (Azure, AWS), co-location, and managed service environments
• Design and implement standardised cloud landing zones by service category, enabling repeatable, governed deployment patterns
• Assess the existing Azure environment (built during COVID) and determine appropriate target architecture and integration with on-premises systems
• Develop a hosting rationalisation roadmap, identifying workloads for migration, consolidation, or retirement
• Define ISP and external connectivity architecture, rationalising current fragmented peering arrangements
• Evaluate market data and financial services connectivity requirements (Bloomberg, Refinitiv, Trade Point, FX platforms)
• Work with network and security architects to ensure hosting design aligns with network and security standards
• Produce total cost of ownership models and capacity plans across the hosting estate
• Evaluate suitability of Hitachi and NTT infrastructure offerings in the context of the broader strategy.

Infrastructure / Cloud Hosting Architect

• A major banking group operating in EMEA is undergoing a significant infrastructure transformation programme
• Converging two separate network environments
• This is a hands-on senior architecture role requiring both strategic thinking and the ability to engage at detailed engineering levels

Senior Network Architect

QA Automation Engineer

• Audit the current network and infrastructure tooling estate, identifying duplication, gaps, and unlicensed/underutilised products
• Define a target-state tooling strategy covering: network management, observability/monitoring, automation/orchestration, IPAM, and CMDB
• Design and implement network automation workflows for standard operational tasks (port changes, firewall rule changes, VLAN provisioning)
• Build out network observability capabilities to provide deterministic visibility across the converged network environment
• Work with the architecture team to define and implement a CMDB strategy, enabling accurate asset and service dependency data
• Develop automation to support the transformation programme itself — migration tooling, configuration validation, and audit capabilities
• Evaluate and rationalise managed service tooling used by the NTT-managed network
• Provide tooling input into the change management process, enabling automated risk classification and impact assessment

Network & Infrastructure Tooling – Automation Engineer

Communications

• Assess the current voice and UC estate across both banking entities: CUCM, Cisco Cubes, WebEx, trading turrets, voice recording
• Define a target-state voice architecture aligned to the broader infrastructure transformation
• Develop a structured migration plan to Cisco WebEx, incorporating full change management
• Manage end-user impact and change communications for trading floor users
• Evaluate and rationalise voice recording platforms, ensuring regulatory compliance requirements are met
• Work with the network team to ensure QoS, connectivity, and resilience requirements are addressed

Voice & Unified Communications Engineer – Freelance

Data Engineer

• Define scalable data architectures
• Support analytics and data-driven solutions
• Collaborate with engineering, cloud, and security teams
• Design and deliver cloud-based data platforms

Senior Data Architect – GCP

• Design, implementation, and operation of IP Core and Aggregation networks in a Service Provider environment
• Engineering and lifecycle management of BNG (Broadband Network Gateway) platforms
• Deployment and operation of CG-NAT solutions at scale
• Configuration and optimization of routing protocols (BGP, IS-IS, OSPF)
• Capacity planning, traffic optimization, and resiliency design
• Integration and usage of Juniper Paragon (JRD) for traffic engineering, visibility, and automation
• Troubleshooting complex network incidents across core, aggregation, and edge layers
• Collaboration with architecture, operations, and service teams
• Documentation of designs, configurations, and operational procedures