Devops SRE

Test Triangle; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm in Greater London is seeking a Senior Cloud Engineer to contribute technical expertise within a cloud engineering team. This role involves architecting scalable Kubernetes environments on Google Cloud Platform (GCP) and ensuring robust security measures. The ideal candidate will have extensive experience in DevOps or Site Reliability Engineering, deployment of production-grade Kubernetes clusters, and proficiency in CI/CD pipelines, alongside programming skills in Python, Go, and Bash. Join this dynamic team to drive innovative cloud solutions.

Qualifications

• Extensive experience in DevOps or SRE roles across consumer or SaaS environments.
• Strong expertise in deploying and managing production-grade Kubernetes clusters.
• Hands-on experience with Kubernetes and Containers in live environments.
• Proven experience designing and implementing CI/CD pipelines.
• Proficiency in programming languages such as Python, Go, and Bash.
• Strong experience developing and managing Infrastructure as Code using Terraform.
• Hands-on experience with GCP infrastructure and services.

Responsibilities

• Architect, implement, and maintain highly resilient Kubernetes environments on GCP.
• Engineer and optimise Kubernetes infrastructure for multitenant workloads.
• Build, maintain, and enhance CI/CD pipelines for automated testing and deployments.
• Collaborate with cross-functional teams for cloud-native solutions.

Skills

DevOps

Site Reliability Engineering (SRE)

Kubernetes (k8s)

CI/CD pipelines

Python

Go

Bash

Infrastructure as Code (IaC)

GCP infrastructure

cloud security

Tools

Terraform

Prometheus

Dynatrace

OpenTelemetry

Harness CI/CD

Job description

Our Cloud Engineering team is seeking a seasoned and passionate Senior Cloud Engineer with deep hands‑on development and cloud engineering expertise. In this role, you will serve as a key technical contributor within a cloud‑focused engineering team, working on one of the Group’s flagship initiatives—delivering a strategic platform on Google Cloud Platform (GCP) that enables the business to realise next‑generation services aligned with the Bank’s long‑term vision.

Key Responsibilities

• Architect, implement, and maintain highly resilient, scalable, and secure Kubernetes environments on GCP.
• Engineer and optimise Kubernetes infrastructure to support multitenant workloads, ensuring robust isolation, resource efficiency, and operational scalability.
• Design and enforce strong security controls, including OPA Gatekeeper policies, fine‑grained RBAC, mTLS enforcement, and secure service mesh configurations.
• Build, maintain, and enhance CI/CD pipelines enabling automated testing, seamless deployments, and continuous integration.
• Diagnose and resolve complex system‑level issues related to performance, scalability, networking, and automation.
• Collaborate with cross‑functional teams to deliver cloud‑native solutions aligned with engineering best practices and business goals.

Required Skills & Experience

Core Cloud & DevOps Competencies

• Extensive experience in DevOps or Site Reliability Engineering (SRE) roles across consumer or SaaS environments.
• Strong expertise in deploying and managing production‑grade Kubernetes clusters and containerised services.
• Hands‑on experience with Kubernetes (k8s) and Containers in live, high‑availability environments.
• Proven experience designing and implementing CI/CD pipelines for automated build, test, and deployment workflows.
• Proficiency in programming languages such as Python, Go, and Bash for automation and tooling.
• Demonstrated ability to take ownership of engineering initiatives and drive them to successful completion.
• Strong experience developing and managing Infrastructure as Code (IaC) using Terraform.
• Exposure to managing the full product lifecycle of cloud‑native core services.
• Hands‑on experience with GCP infrastructure and services.
• Deep understanding of cloud networking concepts such as Hybrid Connectivity, VPN, NAT, IPAM, DNS, and routing.
• Strong knowledge of cloud security including KMS, PKI, encryption standards, and least‑privilege access principles.
• Experience with Service Mesh technologies such as Istio or Anthos for secure service‑to‑service communication and observability.
• Competence in managing Istio telemetry, sidecar injection, and enforcing mTLS.
• Experience with Anthos Config Management, GitOps‑driven provisioning, and Backstage GitOps workflows.
• Understanding of shared Kubernetes services such as CoreDNS, cert‑manager, Dynatrace, Cloudability, and Infoblox.
• Familiarity with OPA Gatekeeper for policy enforcement and tenant isolation.

Security, Observability & Performance

• Strong security mindset with a proven track record of designing secure, resilient cloud‑native systems.
• Experience implementing observability stacks including Prometheus, Dynatrace, and OpenTelemetry.
• Deep understanding of Linux internals, system performance tuning, and troubleshooting.
• Familiarity with Aqua Security for container runtime protection.

CI/CD & Automation Tooling

• Hands‑on experience with Harness CI/CD for secure and automated deployment workflows.

Professional Attributes

• Excellent verbal, written, and interpersonal communication skills with the ability to explain complex technical concepts clearly.
• Ability to work effectively in fast‑paced, dynamic environments and adapt quickly to change.
• Strong analytical and problem‑solving abilities with a focus on delivering high‑quality outcomes.