Senior/Staff Platform Engineer

FIS Banking Solutions UK Limited; City Of London; Hybrid; GBP 90,000 - 125,000; Full time

Job summary

FIS Banking Solutions UK Limited seeks a Platform Engineer to design and operate multi-region Kubernetes infrastructure (EKS/GKE/AKS) and own GitOps delivery, observability, DR, and security. You will contribute to AI-driven SRE automation and support hybrid deployments for Tier-1 banks.

The role emphasizes ownership across the full stack, collaboration with security teams, and delivering reliable production platforms in regulated environments.

Qualifications

• Deep Kubernetes experience (EKS/GKE/AKS) and operators/CRDs are a bonus.
• Terraform across multi-cloud environments.
• GitOps tooling with Flux or ArgoCD.
• Kafka or event streaming experience.
• Distributed SQL databases familiarity.
• Go or Rust or similar languages.

Responsibilities

• Build and scale multi-region Kubernetes infrastructure for five-nines workloads.
• Implement Terraform, Helm, and GitOps across cloud and hybrid environments.
• Own DR, failover, backup/restore, and multi-region resiliency; drive zero-trust security and cryptographic audit trails.
• Develop and maintain observability stacks using Prometheus, Grafana, Loki, and OpenTelemetry.
• Lead AI-SRE automation and support on-prem and air-gapped deployments; mentor the team.

Skills

Kubernetes

Terraform

GitOps

Kafka

Distributed SQL

Go/Rust

Tools

Prometheus

Grafana

OpenTelemetry

Flux

ArgoCD

Job description

ROLE SUMMARY

Sits within a newly acquired startup building an AI-enabled, autonomous banking platform for Tier-1 financial institutions within the banking group. The Platform Engineer builds and operates the multi-region Kubernetes infrastructure that powers the platform at five-nines availability, owning GitOps delivery, observability, disaster recovery, zero-trust security, and AI-driven SRE automation. Ships directly into production environments at the world's largest banks.

KEY RESPONSIBILITIES

• Infrastructure & Architecture Infrastructure: Build and scale multi-region Kubernetes infrastructure (EKS/GKE/AKS) for five-nines workloads. Architecture: Architect active-active distributed systems.
• GitOps Implement Terraform, Helm, and GitOps (Flux) across cloud and hybrid environments.
• Reliability & Security Resiliency Own DR, failover, backup/restore, and multi-region resiliency. Security: Drive zero-trust security, identity, multi-tenant isolation, and cryptographic audit trails.
• Observability Build and maintain stacks using Prometheus, Grafana, Loki, and OpenTelemetry.
• AI & Operations AI-SRE: Lead AI-driven automation: auto-remediation, incident insights, and AI-based root cause analysis. Deployment: Support on-prem and air-gapped deployments and legacy integrations. Contribute to team excellence through knowledge sharing, mentoring, and coaching, helping to develop technical capability and promote engineering best practices across the organization.

REQUIRED EXPERIENCE & CAPABILITIES

• Technical Expertise Deep Kubernetes experience (EKS/GKE/AKS; operators/CRDs a bonus). Terraform (multi-cloud). GitOps tooling: Flux or ArgoCD. Kafka / event streaming. Distributed SQL databases. Language: Go, Rust, or similar (AI-accelerated development welcome).
• Cloud & Reliability Prometheus, Grafana, and OpenTelemetry observability stack experience. DR, HA, and Zero-Trust architecture design and ownership.
• Operating Style Strong ownership mindset across the full infrastructure lifecycle. Comfortable operating in hybrid cloud and regulated environments. AI-native engineer: integrates LLMs and agentic workflows into daily engineering practice.

IMPACT & SCOPE

Direct impact on core banking platforms used by Tier-1 global institutions. High autonomy and accountability within a small, senior team. Work shipped directly to production environments at enterprise scale.

WHY THIS ROLE

This role offers the autonomy, ownership, and technical depth of a startup, combined with the scale, stability, and long-term impact of FIS. Engineers in this role shape foundational banking infrastructure while operating with clear accountability, enterprise resources, and real-world production responsibility.

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Sourcing Model Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.