sergi@tbilisi:~$ whoami
Sergi Papinashvili
DevOps Engineer (CKA, LPIC1 & CCNA Certified)
papinashvilisergi@gmail.com · +995 592 01 99 58 · Tbilisi, Georgia · linkedin · github

DevOps Engineer focused on Kubernetes, GitOps, and infrastructure automation — designing CI/CD pipelines, observability stacks, and cloud infrastructure that hold up in production.

Skills

Kubernetes / HelmArgoCDTerraform Ansible / AWXDockerCI/CD (GitHub, GitLab, Azure, Jenkins) Kong API GatewayAWS (EC2, VPC, S3, CloudWatch, Route53, IAM)Cloudflare Azure (VMs, VNets, Blob Storage, Monitor, DNS, Entra ID, RBAC)Linode/Akamai Linux (Ubuntu / Rocky Linux)Bash / PythonGit Grafana / Prometheus / ZabbixElasticsearch / Kibana / Fluentd MariaDB / MSSQL / OracleHashiCorp VaultRabbitMQ Postfix Mail ServerWireGuard / VPN / XRayHeadscale / Tailscale

Experience

AdaptiveOS · Self-employedsince Feb 2026
Creator & Maintainer
  • Custom Linux Distribution — solo-founded and maintain an open-source, modular polyrepo distro, covering packaging, init systems, and the build pipeline.
  • Provided orchestration scripts and CI pipelines to automate image builds and manage the workspace.
  • For more info, please visit: adaptive-os.github.io
TBC BankFeb 2025 – Feb 2026
DevOps Engineer
  • Managed a production Kubernetes cluster, ensuring high availability and reliability across the platform; created and managed Helm charts for application deployments.
  • Migrated existing services to Kubernetes — moving them off their prior infrastructure and onto K8s via ArgoCD deployments and Kong API routing; wrote and optimized GitLab CI pipelines alongside Azure DevOps.
  • Set up the Grafana + Prometheus observability stack, covering service health, performance metrics, and infrastructure KPIs across all servers.
  • Used ArgoCD's pull-based GitOps model to deploy only changed components — cutting deployment time and improving pod self-healing across legacy and modern services.
  • Managed Kong API Gateway for all API-facing services (worker services routed via ArgoCD only), giving developers and QA self-service access to endpoints without manual provisioning.
  • Proactively identified and resolved critical Kubernetes pod anomalies and development-phase bugs before reaching production.
  • Worked across multiple production databases — Oracle & MSSQL — including direct query-level troubleshooting of endpoints failing to read from the database.
BitSec LTDJan 2022 – Jan 2025
Systems & Infrastructure Engineer
  • Automated network tooling (port scanners, DNS analyzers, traffic monitors) and infrastructure provisioning using Ansible and Python.
  • Managed mail infrastructure — PST file cleanup and backups — and administered Active Directory user accounts.
  • Designed enterprise-level disaster recovery and backup strategies for mission-critical business data using Acronis, Norton Ghost, AOMEI, and Clonezilla.
RightNao-GeorgiaSep 2019 – Dec 2021
Systems Engineer
  • Designed and automated mail infrastructure pipeline on Postfix / Dovecot / SpamAssassin, hardening deliverability and security with DMARC, DKIM, and SPF records managed via Cloudflare DNS (PTR records managed separately via Linode/Akamai, where the mail server was hosted), and monitoring sender reputation via Talos Intelligence and MXToolbox — reaching a 10/10 reputation score and securing whitelisting with Google, Microsoft, and Spamhaus.
  • Managed network security controls via PFSense (firewall rules, ACLs, whitelisting).
  • Deployed and maintained Grafana dashboards for real-time infrastructure monitoring.
  • Set up and administered Zabbix for network-wide monitoring and alerting.
  • Set up and managed a MariaDB database backing the mail server.
  • Engineered an OpenVPN infrastructure pipeline for remote user connectivity, with automatic reconnection upon internal network access loss.
  • Automated Linux environment provisioning and configuration management using Ansible, eliminating the need to manually update configurations across multiple servers individually.
Futkara – Impervet LTDJan 2016 – Aug 2019
IT Operations Engineer
  • Performed network and enterprise troubleshooting, Windows Server administration, and hardware support (printers, scanners, OS reinstalls, backups) while completing coursework toward CCNA certification.
  • Carried out early manual monitoring of website latency and uptime, prior to adopting dedicated DevOps tooling.

Certifications

Projects

AdaptiveOS — custom Linux distribution — GitHub
LLM RAG Assistant — local offline RAG pipeline (Ollama, LangChain, ChromaDB) — GitHub
Secure Mesh VPN — WireGuard/XRay-based mesh VPN — GitHub
SaaS Monitor — async FastAPI weather monitoring app — GitHub
URL Shortener — GitHub
CalorieFlow — cross-platform calorie tracker (Flutter/Dart) — GitHub