DevOps Engineer

Rethinkit City of Cape Town, Western Cape, South Africa

Direct message the job poster from Rethinkit

We are looking for a Senior DevOps Engineer to help us design, implement, and operate enterprise-grade logging, metrics, monitoring, and alerting across our production platforms.

You will be a key contributor in managing a production RKE2 Kubernetes cluster, operated via Rancher, and improving our CI/CD pipelines using GitLab.

The role supports high-performance, highly secure systems for one of the largest stock brokers in the United States.

Note: Candidates must be able to work, when required, US Eastern Time hours (14:00 - 00:00 SAST) as this will be required for production deployments, troubleshooting and collaboration with engineering teams.

This is a fully remote role, but candidates must reside in the greater Cape Town area for team lunches and get togethers. It is a hands‑on role working closely with backend, web, and mobile engineering teams as well as the platform team in the US.

Responsibilities

Observability & Reliability

• Design and implement enterprise-grade logging, metrics, monitoring, and alerting
• Build and maintain centralised log aggregation pipelines
• Define alerting strategies, SLOs, and operational dashboards
• Ensure system health, performance, and reliability in production
• Set up, configure, and manage production Kubernetes clusters (RKE2)
• Deploy and manage workloads using Helm
• Troubleshoot cluster, networking, and workload-level issues
• Apply security and hardening best practices for production systems

CI/CD & Automation

• Build, migrate, and maintain GitLab CI/CD pipelines
• Migrate existing services into standardised pipelines
• Support and maintain pipelines for new services
• Improve developer experience through automation and reusable templates

Security & Networking

• Implement and maintain security best practices
• Manage SSL certificates
• Secure Kubernetes workloads, networks, and CI/CD pipelines
• Work with complex, high-security networking environments

Containers & Software Collaboration

• Set up and maintain Docker containers and registries
• Work closely with backend teams and assist where required
• C++ experience is a bonus

Required Experience

• Senior-level experience in DevOps / Platform Engineering
• Experience with RKE2 and Rancher
• Strong experience with Helm
• Hands‑on experience with GitLab CI/CD
• Experience implementing:
• Metrics and monitoring
• Alerting strategies
• Strong networking and security fundamentals
• Experience supporting mission‑critical production systems

Nice to Have

• Observability tools such as:
• Grafana
• Loki, ELK, or OpenSearch
• OpenTelemetry
• Experience with Vector for log aggregation
• AWS/GCP experience
• Infrastructure as Code (Terraform, Ansible)
• GitOps workflowsExperience in financial or regulated environments

What We Offer

• Fully remote role, but candidates must reside in the greater Cape Town area for team get togethers.
• Work on large-scale, high-performance systems
• Opportunity to contribute to platforms used by one of the largest US stock brokers
• Collaborative engineering environment
• Competitive compensation

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology

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