Available for select engagements

Timothy ParfeniukDevOps · Cloud · SRE · AI

I design, build, and operate cloud infrastructure end-to-end — from first commit to highly-available production.

Kyiv, Ukraine·open to remote · UTC+2

~/portfolio · zsh

// about

Engineer end-to-end. From first commit to 3am pages.

DevOps engineer with a degree in Computer Engineering from Taras Shevchenko National University of Kyiv. I work across cloud infrastructure, networking, system integration, and automation — bridging software, network, and system engineering with the modern DevOps toolchain. My focus is enhancing and automating delivery: continuous integration, continuous deployment, observability, and reliability. Lately, AI is a core part of how I build and operate — Claude, Amazon Bedrock, and agentic workflows let me automate the toil so engineering time goes to the work that actually matters.

Education

PhD, Computer Engineering
2025 — 2029 · Taras Shevchenko National University of Kyiv
Master's, Computer Engineering
2022 — 2024 · Taras Shevchenko National University of Kyiv
Bachelor's, Computer Engineering
2018 — 2022 · Taras Shevchenko National University of Kyiv

Certifications

· Getting Started with Google Kubernetes Engine
· Linux Server Management and Security
· Networking Essentials
· Introduction to Bash Shell Scripting
· Essential Google Cloud Infrastructure: Foundation

// what I do

Full-cycle: build, ship, run, watch — and keep the bill sane.

AI-Augmented Engineering

· Anthropic Claude · Amazon Bedrock in production
· Agentic automation for ops, code review, runbooks
· LLM-powered internal tooling for engineering teams
· Pragmatic adoption — measured by shipped value, not hype

Cloud Infrastructure

· AWS & GCP architecture
· Networking, IAM, security baselines
· IaC: Terraform, Terragrunt, Puppet

Development & Automation

· Backend services (.NET, Python)
· Internal tooling & glue scripts
· Bash, Groovy, Python pipelines

CI/CD & Delivery

· Jenkins (+JobDSL), TeamCity, GitLab CI
· Container builds, registries, GitOps with Atlantis
· Repeatable, peer-reviewed deploys

Containers & Orchestration

· Docker, Docker Compose
· Kubernetes (EKS & self-hosted)
· Helm charts & cluster operations

Monitoring & SRE

· Prometheus, Grafana, ELK, CloudWatch
· Alerting via Slack & PagerDuty
· SLI/SLO definition, incident response

High Availability & DR

· Multi-AZ & multi-region designs
· Backups, failover, runbook automation
· DR region configuration & drills

FinOps

· Cloud cost visibility & tagging
· Right-sizing, reservations, savings plans
· Cost-aware architecture reviews

Secrets & Identity

· HashiCorp Vault
· Keycloak SSO
· Least-privilege IAM

// experience

Where I've shipped.

Cloud FinOps Engineer
·Namecheap, Inc.
Mar 2025 — Present · Remote
- · Cloud cost optimization across AWS & GCP estates.
- · Cost visibility, tagging, and accountability for engineering teams.
- · Right-sizing and architectural reviews to drive sustainable spend reduction.
DevOps Engineer
·KindGeek
Aug 2022 — Mar 2025 · Kyiv, Ukraine
- · Maintained cloud infrastructure as code on AWS & GCP (Terraform/Terragrunt, Puppet/Hiera, Atlantis).
- · Operated EKS clusters and Helm-based deployments for production workloads.
- · Built observability with ELK, Prometheus, Grafana, CloudWatch — alerting via Slack & PagerDuty.
- · Configured DR region and ran failover drills for primary-region outages.
- · Drove FinOps optimization and supported development teams day-to-day.
DevOps Engineer
·Avtologistika Group
Jul 2021 — Aug 2022 · Ukraine
- · Owned CI/CD pipelines on TeamCity.
- · Administered Linux & Windows webservers (IIS).
- · Operated VMware virtualization clusters.
.NET Developer
·Avtologistika Group
Aug 2019 — Jul 2021 · Ukraine
- · .NET backend development for production systems.
- · CI/CD pipeline support on TeamCity.
- · WebServer administration (Windows Server, IIS).
DevOps Engineer · System Administrator
·Taras Shevchenko National University of Kyiv
Jun 2019 — Aug 2022 · Kyiv, Ukraine
- · Self-hosted GitLab + Runner administration; CI/CD for PHP project + GitLab Pages.
- · KVM virtualization, CentOS / RHEL, Ceph storage.
- · Self-hosted Kubernetes + Helm; NGINX & HAProxy reverse proxies.
- · Monitoring with Prometheus, Alertmanager, Grafana, ELK, Monit.
- · Automation with Ansible & Bash; MinIO for S3-compatible storage.
DevOps Engineer
·Green-World Startup
Aug 2020 — Nov 2020 · Kyiv, Ukraine
- · Containerized microservices (.NET Core + Angular) with Docker.
- · Jenkins pipelines for CI/CD on CentOS + Apache.
- · Prometheus + Grafana monitoring with Slack alerts.

// stack

Tools I reach for.

Cloud

AWSGCPEKSRDSOpenSearchCloudWatchCloudTrail

IaC & Config

TerraformTerragruntPuppetHieraForemanAtlantisAnsible

Containers

DockerDocker ComposeKubernetesHelmHarborNexus

CI/CD

JenkinsJobDSLGitLab CITeamCitySonarQube

Observability

PrometheusGrafanaELKTelegrafInfluxDBPagerDuty

Platform

HC VaultKeycloakNGINXHAProxyRabbitMQHazelcast

Data

MySQLPostgreSQLOpenSearchMinIO (S3)Ceph

Languages

PythonBashGroovy.NET / C#

AI & LLMs

Anthropic ClaudeAmazon BedrockClaude CodeAgent SDKsMCPRAG

// writing

Notes from the cloud.

FinOpsCloudCost Optimization

Adopting FinOps in Startups

FinOps isn't only for enterprises. Transparency, accountability and continuous optimization can cut a startup's cloud bill by 60%+ — without slowing the team down.

April 10, 2026·7 min

// soon

More essays in the pipeline — on Bedrock-driven agents, Terraform module ergonomics, and incident review templates.

See all writing

// let's talk

Got infrastructure that needs a steady hand?

Whether you're scaling, migrating to the cloud, optimizing spend, or just want your deploys to stop being scary — drop me a line. I respond within a day.