Senior Devops Engineer

Role & responsibilities

• Design and build Jenkins pipelines for environment refreshes, quarterly OS and middleware patching, Kubernetes/EKS/ArgoCD upgrades and site-resiliency failover exercises

• Automate Kubernetes cluster lifecycle on-prem and on AWS EKS, including deprecated-API pre-flight checks, node draining, readiness gates and wave promotion from sandbox to production

• Run GitOps delivery with ArgoCD, using sync waves to promote changes from one environment to the next

• Automate rotation of certificates, keys and passwords with cert-manager, External Secrets Operator and AWS Secrets Manager, without disrupting applications

• Run automated dependency and vulnerability updates (Renovate, Trivy) so every change goes through a reviewed pull request

• Manage Dynatrace dashboards and alerting as code with Terraform, using plan-on-PR, apply-on-merge and drift detection

• Build automated health checks and readiness dashboards for business-critical processing windows

• Build self-service automation triggered from ServiceNow requests, with access controls and automatic expiry

• Develop AI-assisted on-call tooling that triages incidents across monitoring, ticketing and logs, and runs approved runbook fixes under strict guardrails and human approval

• Plan rollback, pre/post validation and change management for every automation that touches production

• Write runbooks and documentation, and mentor engineers on using and extending the automation

• Work with application teams, database engineers, release management and security on dependencies and handoffs

• Take part in the on-call rotation

Preferred candidate profile

• Strong experience building and maintaining Jenkins pipelines (declarative and scripted, Groovy, shared libraries, parameterised and scheduled jobs)

• Deep hands-on Kubernetes experience, both on-prem and on AWS EKS, including cluster upgrades and production operations

• GitOps experience with ArgoCD

• Ansible for configuration management, patching and orchestration

• Terraform, including remote state and CI-driven plan/apply workflows

• Solid AWS knowledge, especially EKS, IAM, Secrets Manager and S3

• Strong scripting in Python and Bash, including integrating with REST APIs

• Observability experience, preferably Dynatrace (dashboards, alerting, DQL)

• Git and GitHub pull-request workflows

• A track record of delivering automation into production safely, with rollback plans, validation and change management

• The ability to work independently, own outcomes end to end, and explain technical trade-offs to engineers and stakeholders

Nice to have:

• cert-manager, External Secrets Operator, Stakater Reloader

• Renovate, Trivy, pluto/kubent, kured, Kubespray

• Kafka / Confluent Cloud administration (Confluent CLI, API key management, consumer lag monitoring)

• Oracle WebLogic and OHS administration, including PSU patching

• F5 and/or AVI load balancer automation

• ServiceNow (catalog items, request-driven automation, REST API) and Jira automation

• Building AI agents or assistants for operations (e.g. Claude Code, MCP integrations) with safe credential and approval models

• Familiarity with ITGC/SOX controls for access management