Senior/Staff Platform Engineer

FIS Management Services; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

FIS is building an AI-enabled, autonomous banking platform for Tier-1 banks. The Platform Engineer will build and operate the multi-region Kubernetes infrastructure powering the platform, owning GitOps delivery, observability, disaster recovery, zero-trust security, and AI-driven SRE automation.

You will ship to production environments at the world’s largest banks, in a small senior team, shaping engineering best practices across the organization.

Qualifications

• Extensive Kubernetes experience with multi-region deployments.
• Proficient in Go or Rust for AI-accelerated development.
• Experience with GitOps tooling and cloud-native platforms.

Responsibilities

• Build and operate multi-region Kubernetes infrastructure for five-nines workloads.
• Own DR, failover, backup/restore and zero-trust security.
• Lead AI-driven automation and AI-based root cause analysis.

Skills

Kubernetes

Go

Rust

Kafka / event streaming

Distributed SQL databases

GitOps

AI-driven SRE automation

Tools

Terraform

Flux (GitOps)

ArgoCD

Prometheus

Grafana

OpenTelemetry

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.