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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