Senior Cloud and Infrastructure Engineer

Finastra International; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Unlimited vacation

Hybrid work

Voting leave

Bereavement leave

Sick leave

Wellbeing program

Medical insurance

Life insurance

Disability insurance

Retirement plan

Volunteer days

Donation matching

Inclusion groups

Job summary

Finastra in London is seeking a Senior Cloud and Infrastructure Engineer to design, build and operate resilient cloud and on‑prem infrastructure for a highly regulated financial services environment.

You will lead networking activities across virtual and physical environments, implement IaC, and collaborate with Security and wider tech teams to deliver end‑to‑end solutions. This hands‑on role reports to the Head of Cloud Infrastructure Engineering.

Qualifications

• Strong hands-on experience across networking, cloud and infrastructure engineering.
• Solid knowledge of VPNs, VNets, subnets, Private Link Networking and VLANs.
• Production experience designing and supporting cloud infrastructure.
• Experience in secure, resilient and highly available environments.
• Good troubleshoot capabilities across infrastructure and network layers.
• Infrastructure as Code experience is a plus.

Responsibilities

• Design, implement, operate and improve secure, scalable cloud and infrastructure environments.
• Lead hands-on networking across virtual networks, subnets and connectivity between cloud and physical environments.
• Support operation and management of cloud platforms, physical infrastructure and networking.
• Monitor infrastructure health and resolve complex issues.
• Automate provisioning and configuration via IaC and scripting.
• Embed security, resilience and compliance in design and operations.
• Collaborate with Cloud, Infra, Security and wider teams on end‑to‑end solutions.
• Contribute to technical docs and engineering standards.

Skills

Networking fundamentals

Cloud & infrastructure engineering

Troubleshooting

Security & compliance

Collaboration

Tools

Terraform

Ansible

PowerShell

Bash

Python

Infoblox

CI/CD tools

Job description

Who are we?

At Finastra, we're a global leader in financial services software, dedicated to expanding access to financial services and shaping what's next for the industry. Our technology powers mission‑critical solutions across Lending, Payments and Universal Banking, supporting over 7,000 customers, including 80% of the world's top 50 banks, in more than 110 countries.

Finastra has signed an agreement to sell its Universal Banking business to Pollen Street Capital, with completion expected end 2026 / early 2027, subject to consultation and customary closing conditions. Upon completion, this role is expected to transition to the standalone Universal Banking business, creating opportunities to support its future growth and success.

What will you contribute?

As a Senior Cloud and Infrastructure Engineer, you will play a key role in building, operating and evolving the cloud, infrastructure and networking capabilities supporting our business and customers.

This is a hands‑on technical role spanning cloud platforms, physical infrastructure and networking, with a particular emphasis on network engineering. You will help deliver resilient, secure and scalable infrastructure within a highly regulated financial‑services environment. The role will report to the Head of Cloud Infrastructure Engineering and will be based in London.

Responsibilities & Deliverables

• Design, implement, operate and continuously improve secure, scalable and resilient cloud and infrastructure environments.
• Lead hands‑on networking activities across virtual networks, subnets, VLANs, routing, switching, firewalls and connectivity between cloud and physical environments.
• Support the operation and management of cloud platforms, physical infrastructure and networking services.
• Monitor infrastructure health and performance, proactively resolving complex cloud, infrastructure and networking issues.
• Identify opportunities to automate infrastructure provisioning and configuration through Infrastructure as Code and scripting.
• Embed security, resilience and compliance considerations into infrastructure design and operations.
• Collaborate with Cloud, Infrastructure, Security and wider technology teams to deliver reliable end‑to‑end solutions.
• Contribute to technical documentation, engineering standards and infrastructure transformation initiatives.

Required Experience

• Strong hands‑on experience across n etworking, cloud and infrastructure engineering, with particularly strong networking fundamentals.
• Strong knowledge of networking concepts including VPN, VNets, subnets, Private Link Networking and VLANs, with the ability to confidently troubleshoot network environments.
• Practical experience designing, implementing and supporting cloud infrastructure in production environments.
• Experience supporting secure, resilient and highly available technology environments.
• Strong troubleshooting capabilities across infrastructure and network layers.
• Experience with infrastructure automation and Infrastructure as Code would be advantageous.
• Experience within financial services, fintech, payments, lending or another regulated environment is strongly preferred.
• Strong communication and collaboration skills, with a practical and team‑oriented approach.

Nice to Have

• Experience with Infrastructure as Code tooling such as Terraform or Ansible.
• Scripting experience using PowerShell, Bash or Python.
• Experience with CI/CD and DevOps/DevSecOps practices.
• Experience using Network management tools like Infoblox
• Experience supporting hybrid cloud and on‑premises environments.
• Knowledge of security and compliance

Benefits

• Flexibility: Enjoy unlimited vacation, subject to local regulations and business priorities. Benefit from hybrid working arrangements and inclusive policies such as paid time off for voting, bereavement, and sick leave.
• Well‑being: Access confidential one‑to‑one support through our Employee Assistance Program, connect with our network of Wellbeing Champions and Gather Groups, and take part in monthly events and initiatives designed to help you thrive‑inside and outside of work.
• Health & Financial Security: Medical, life and disability insurance, retirement plans, lifestyle, and other benefits.*
• Sustainability: Paid time off for volunteering and donation‑matching opportunities to support causes that matter..
• Inclusion: Get involved in our inclusion communities such as CountMeInCast (??? maybe)