Senior DevOps Engineer; iOCO

We are looking for a hands‑on Dev Ops Engineer to operate inside a AWS native banking environment. You will own the build, automation, and operational tooling that delivery teams rely on every day CI/CD pipelines, infrastructure as code, environment provisioning, configuration management, and the developer experience that surrounds them.
This is an engineering role first. You will spend the majority of your time in code and configuration: writing pipelines, building automation, hardening environments, and removing manual toil from the path to production. You will work alongside developers, architects, security engineers, and platform teams to keep delivery flowing reliably inside a regulated, PCI-DSS environment.
Site Reliability Engineering experience is a strong advantage. You will use it to push the platform further sharper observability, better incident response, lower failure domains, and resilience patterns built into the way services are deployed and run.
What you'll do:

• Design, build, and maintain CI/CD pipelines that move code from commit to production safely and repeatably across the delivery estate.
• Automate AWS workload provisioning and configuration deployment using infrastructure as code, with environments that are reproducible, version-controlled, and auditable.
• Build and operate the deployment automation, release tooling, and environment management that delivery squads depend on day to day.
• Harden the developer experience repository templates, pipeline templates, deployment patterns, and self-service tooling that reduce friction without weakening control.
• Integrate security and compliance controls into pipelines and infrastructure secrets management, access control, change traceability.
• Translate business and technical requirements into scalable, automated delivery solutions that align to the AWS Well-Architected Framework.

• Work hands-on across an AWS estate, integrating cloud-native services with on-premises systems where the banking environment requires it.
• Build and operate workloads across EC2, RDS (EBS, EKS, ECS, Load Balancing, Secrets Manager, KMS, and Service Catalog.
• Use AWS CDK as the primary infrastructure-as-code tool, with Cloud Formation, Ansible, and scripting languages applied where they fit best.
• Apply networking fundamentals routing, segmentation, security groups, DNS, TLS, and load balancing to design environments that are both secure and operable.
• Support the operational lifecycle of platform services the wider engineering organisation depends on, including identity, messaging, and application server tiers where present.

Where SRE skills are present, the role expands to include the following. These responsibilities are not the primary requirement but will materially strengthen the contribution of an engineer who brings them.

• Identify and reduce failure domains across the platform, designing systems that contain blast radius and recover gracefully from partial failure.
• Apply SRE principles SLOs, post-incident learning to improve reliability, performance, and the team's response to production issues.
• Enhance observability across environments through stronger monitoring, structured logging, useful alerting, and dashboards that surface what matters during an incident.
• Troubleshoot and optimise low‑latency, Java‑based applications in production, working alongside application engineers to resolve issues at the system
• Build automation that minimises business impact during maintenance and failures, and that reduces the operational load carried by delivery teams.

• Contribute as a strong technical voice in a cross‑functional team alongside Architects, Engineers, Business…