Senior DevOps Engineer (AWS) - Up to £100k

We’re partnered with a global fintech infrastructure company operating at the core of financial services: the data control layer behind banks, asset managers, and trading institutions worldwide.

Following a major acquisition the business is entering a significant scale phase, doubling headcount and investing heavily in its cloud and platform engineering capability

This is high-scale, mission-critical infrastructure software, processing trillions in financial assets daily and ensuring the accuracy, reconciliation, and compliance of global financial data.

Mission of the role:

• Deliver scalable, automated, and production-ready platforms built on AWS with Kubernetes, Infrastructure-as-Code, and GitOps at the core
• 6 months into the role, you will have led a successful migration or go-live, have delivered measurable improvements in scalability and efficiency, and been recognised as a trusted authority in microservices delivery
• You will work in a wider Infrastructure / SRE / Cloud team of 15

What you’ll be doing

• Design, build, and operate microservices platforms on AWS using Kubernetes (EKS/AKS)
• Automate provisioning, deployments, and pipelines with Terraform, Helm, and CI/CD tools
• Lead technical delivery for customer projects, from discovery through to production go-live
• Migrate and scale services into microservices-based platforms with resilience and observability in mind
• Implement GitOps workflows (e.g. ArgoCD, Flux) to ensure automation and consistency
• Produce high-quality documentation, runbooks, and reusable modules to accelerate delivery
• Act as a senior technical authority, raising engineering standards and mentoring by example

What we’re looking for

Essential skills and experience:

• Strong AWS cloud engineering background with Terraform / IaC
• Proven expertise in microservices design, deployment, and operations
• Hands-on Kubernetes orchestration (EKS/AKS)
• Linux administration and scripting (Bash / PowerShell; Python desirable)
• GitOps experience with Argo CD or Flux
• CI/CD pipeline development and automation
• Strong communication and problem-solving skills
• Track record of delivering service migrations and platform go-lives into production

Nice to haves:

• Helm chart authoring and advanced Argo CD usage
• Event-driven microservices (Kafka)
• PostgreSQL in cloud environments
• Advanced CI/CD pipeline design
• Experience with Internal Developer Platforms (e.g. Backstage)
• Multi-cloud exposure and/or Python development for tooling

Why join

• Work on large-scale, regulated financial data infrastructure used globally
• Major transformation phase following strategic acquisition and rapid scaling
• Opportunity to shape platform architecture during a key growth period
• Stable, PE-backed business with enterprise scale + modern cloud adoption