dmitry@devops:~$whoami

Dmitrii Tucan

Senior DevOps Engineer · 7+ years

HeadHunter Tech FZ-LLC2024–2026Dubai · Remote
Bumble Inc.2020–2024Dubai · Remote

Infrastructure · Virtualization · Kubernetes · Automation

dmitry@devops:~$
LOCATION

Chișinău, Moldova · Remote

CONTACT

tucan@dev-ops.md

7+Years of IT
Experience

DevOps Engineer focused on infrastructure, virtualization, Kubernetes, automation and high-load production systems.

Professional Experience

2024 — 2026

Senior DevOps Engineer

HeadHunter Tech FZ-LLC

Internal infrastructure from bare metal and virtualization to Kubernetes, CI/CD and development environments.

  • Built infrastructure on Proxmox VE and Libvirt/KVM, automated VM configuration with Ansible, and performed regular updates of production Proxmox clusters.
  • Optimized Kubernetes workload placement and expanded clusters, increasing available compute capacity by approximately 17%. Migrated Selenium Grid to Docker-based VMs, improving test infrastructure performance by 10%.
  • Developed a Kubernetes platform for CI/CD and developer tooling, including Jenkins, Argo CD, Harbor and Vault. Built Helm-based delivery pipelines and reusable Ansible roles.
  • Improved Prometheus/Grafana alerting, reducing infrastructure troubleshooting time by approximately 20%. Implemented a separate Vector → Kafka → ClickHouse pipeline for sensitive infrastructure and security events.
2020 — 2024

DevOps / System Engineer

Bumble Inc.

High-load on-premises infrastructure, KVM virtual machines and internal services across development, staging and production environments.

  • Deployed and maintained clusters on physical servers and KVM virtual machines, and deployed internal services across environments. Participated in on-call and hardware support rotations, coordinating with data center engineers.
  • Resolved infrastructure incidents and contributed to the incident management policy. Identified and addressed shared rack and switch dependencies that affected service resilience.
  • Maintained high-load Zabbix and Grafana monitoring, supported Kubernetes and GitLab CI/CD pipelines, and configured custom Kubernetes monitoring.
  • Automated operations with Python and Bash, including GCP cost reports and a phone alerting tool used before PagerDuty. Updated Puppet manifests and documented implemented solutions.

Core Expertise & Tech Stack

Containers & Orchestration

  • Kubernetes
  • Docker
  • containerd
  • Helm

CI/CD & Configuration

  • GitLab CI/CD
  • Terraform
  • Ansible
  • Argo CD
  • Jenkins
  • Puppet
  • Bash
  • Python

Databases & Messaging

  • PostgreSQL
  • MySQL
  • ClickHouse
  • Kafka
  • RabbitMQ

Storage & Caching

  • MinIO
  • Redis

Infrastructure Networking

  • Cilium
  • Calico
  • MetalLB
  • NGINX Ingress
  • Gateway API
  • HAProxy

Monitoring & Observability

  • Prometheus
  • VictoriaMetrics
  • Grafana
  • Zabbix
  • ELK Stack
  • Vector
  • InfluxDB
  • PagerDuty

Security & Access

  • HashiCorp Vault
  • Trivy
  • Grype
  • Semgrep
  • Keycloak
  • Let’s Encrypt
  • Fail2Ban

Mail, DNS & VPN

  • Exim
  • Postfix
  • Dovecot
  • Bind DNS
  • PowerDNS
  • OpenVPN
  • WireGuard

Linux & Cloud Infrastructure

  • Ubuntu
  • Debian
  • RHEL
  • CentOS
  • Rocky Linux
  • Talos Linux
  • NGINX
  • Apache
  • GCP
  • DigitalOcean
  • NetBox

Testing & Developer Tools

  • Harbor
  • Nexus
  • Devpi
  • Forgejo
  • SonarQube
  • Selenium Grid
  • Sourcebot

Virtualization & Backup

  • VMware ESXi
  • Libvirt / KVM
  • Proxmox VE
  • Bacula