Henrik Jõesalu

Site Reliability EngineerTallinn, Estonia

Hi! I'm Henrik Jõesalu, Site Reliability Engineer specialized in AWS infrastructure, monitoring and Kubernetes.

Sunday, March 22, 2026 19:31:06 GMT

Skills

Stack

Kubernetes
ArgoCD / FluxCD: GitOps
Grafana Stack
AWS
Terraform
GitHub / GitLab
Claude Code

Certifications

✓AWS Certified Solutions Architect - AssociateSep 2023 ✓Cilium Certified AssociateMar 2026

Education

Bachelor Studies in IT-Systems Administrating

University of Taltech

2021 - 2025

Experience

Site Reliability Engineer

CyberCube • Jan 2025 - Present

Collaborate with developers, QA and project managers throughout release cycles. Build and maintain CI/CD.
Plan and drive infrastructure initiatives — Karpenter, Cilium, FluxCD, Grafana Stack
Maintain internal Terraform modules & core-infra on AWS.
Constantly enhance monitoring to provide better insights to engineers.

Junior DevOps Engineer

Delfi Media • Jul 2023 - Sep 2024

Designed Grafana dashboards and alerting rules. Maintained Loki, Mimir, Prometheus and OpenTelemetry operator
Reduced AWS costs by leveraging Kubecost metrics and optimizing the use of services such as S3, CloudWatch, EC2, and Config.
Strengthened security for Gitlab runners residing on the Kubernetes cluster as well as Gitlab ecosystem.
Helped to manage GitLab CI/CD projects using Terraform.
Maintained and deployed Kubernetes services using Helm and ArgoCD.
Responded to incidents happening in the clusters and implemented proactive changes in response to critical alerts.
Developed services guides and improved documentation.

Projects

Some personal projects I have found useful besides issues done on work environment.

Obsidian Template

A ready-to-use Obsidian vault template with a home dashboard, automated daily notes, and pre-configured plugins to keep the folders and pieces of information organized according to best-practices.

EKS Sandbox

Kubernetes playground on AWS that does automatic infrastructure scaling based on workload size using Fargate and Karpenter. Workload backups are handled via Velero and stored on S3.

⚙️

Dotfiles

Collection of personal configuration files I use for setting up dev workflow.

AWS Cost Analysis

Utilizes AWS Glue along with Athena and SQS to allow possiblity of creating detailed cost analysis for your AWS account with Cost and Usage Reports (CUR).

Random

Reads

Useful recommended reads.