Senior DevOps Engineer
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Gresham is a global financial services technology company specialising in enterprise data automation. We help financial institutions ensure that their operational, regulatory and management data is complete, accurate, timely and fully auditable — particularly within complex environments where data is distributed across multiple systems.
Our solutions automate data controls, reconciliations, workflows and exception management, enabling clients to reduce operational risk, strengthen data governance and enhance confidence in reporting across highly regulated environments. Serving both buy-side and sell-side organisations worldwide, Gresham partners with clients to deliver trusted, transparent and resilient data operations.
Job Summary
We are seeking a Senior DevOps Engineer to join our team in London. This is a hands-on role for someone who thrives on technical delivery and wants to take ownership of designing and operating modern microservices platforms.
You will partner with enterprise clients to deliver scalable, automated, and production-ready platforms built on AWS or Azure with Kubernetes, Infrastructure-as-Code, and GitOps at the core. This is not a people management role – it’s about technical depth, customer delivery, and engineering excellence.
What you’ll be doing
- Design, build, and operate microservices platforms on AWS or Azure 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. Argo CD, 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.
Essential Skills and Experience
- Proven expertise in microservices design, deployment, and operations.
- Hands-on Kubernetes orchestration (EKS/AKS).
- Strong AWS or Azure cloud engineering background with Terraform/IaC.
- Linux administration and scripting (Bash/PowerShell; Python desirable)
- GitOps experience with Argo CD or Flux.
- CI/CD pipeline development and automation.
Additional skills that make you standout
- Helm chart authoring and ArgoCD.
- 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.
What success looks like
- First 90 days: onboard, deliver a quick win (e.g. pipeline, service deployment, or migration), and establish credibility with customers.
- By 180 days: lead a successful migration or go-live, deliver measurable improvements in scalability and efficiency, and be recognised as a trusted authority in microservices delivery.