portfolio@devops ~ %
# Welcome!
$ whoami

Łukasz Żułnowski

$ cat role.txt

CloudOps / DevOps / Site Reliability Engineer (SRE)

$ echo $MISSION

Building reliable multi-cloud infrastructure as code using AWS, GCP, Kubernetes, and Terraform. Scaling systems for millions of users worldwide.

$ uptime

up 12+ years in IT, load average: cloud_architecting, kubernetes_wrangling, zero_downtime

$

Ctrl + K to quick navigate

# Technical Skills

Technologies and tools I work with to build reliable infrastructure. See how I've applied these in my projects and work experience.

Loading skills...
Kubernetes
Kubernetes
GKE
GKE
EKS
EKS
Rancher
Rancher
Docker
Docker
Helm
Helm
Kustomize
Kustomize
Istio
Istio
HaProxy
HaProxy
ArgoCD
ArgoCD
Argo Workflows
Argo Workflows
Prometheus
Prometheus
AWS
AWS
GCP
GCP
Terraform
Terraform
Atlantis
Atlantis
Terragrunt
Terragrunt
Kubernetes
Kubernetes
GKE
GKE
EKS
EKS
Istio
Istio
Datadog
Datadog
Terraform
Terraform
Atlantis
Atlantis
Terragrunt
Terragrunt
Helm
Helm
Kustomize
Kustomize
Ansible
Ansible
Puppet
Puppet
Atlantis
Atlantis
ArgoCD
ArgoCD
Argo Workflows
Argo Workflows
GitHub Actions
GitHub Actions
Jenkins
Jenkins
Bitbucket
Bitbucket
Prometheus
Prometheus
Grafana
Grafana
Datadog
Datadog
ELK Stack
ELK Stack
Zabbix
Zabbix
Newrelic
Newrelic

$ Certifications

AWS Certified Solutions Architect - Professional Amazon Web Services
AWS Certified Solutions Architect - Associate Amazon Web Services
AWS Certified SysOps Administrator - Associate Amazon Web Services
AWS Certified Developer - Associate Amazon Web Services

# Work Experience

My professional journey building scalable infrastructure. Check out the technologies I use and projects I've built.

Feb 2021 - Present

CloudOps Engineer

Chess.com | Remote

CloudOps Engineer managing multi-cloud infrastructure.

  • Implementing CI/CD in Github Actions, ArgoCD, Argo Workflows
  • Management of Cloud: GCP, AWS, Mongodb Cloud, Terraform, Terragrunt, Atlantis, ScylaCloud, Confluent Cloud, HPC Cloud
  • Management of Kubernetes: GKE, Rancher (on-prem), Helm, ArgoCD
  • Implementing and designing monitoring solution based on Prometheus/Grafana/Alertmanager/EFK, Datadog
  • Creation of scripts in Python, Bash and Go
  • Maintenance Services: Redis, PSQL, Mongodb, nginx, haproxy, emissary, Istio
GCP AWS Kubernetes GKE ArgoCD Argo Workflows Terraform Terragrunt Atlantis Helm Datadog Prometheus Grafana Go Python Bash Istio Redis PostgreSQL MongoDB
Jul 2021 - Aug 2021

DevOps/Cloud Architect

GreenSteam | Remote

Cloud Architecture and infrastructure design.

  • Preparing Architecture of infrastructure, application, tech-stack
  • AWS infrastructure cost optimisation
  • Product Owner of Infrastructure/CI/CD
  • Management of Cloud: AWS, Terraform, Atlantis
  • Management of Kubernetes: EKS, Helm, Helmfile, Argo
  • Implementing and designing monitoring solution based on Prometheus/Grafana/Alertmanager/EFK
  • CI/CD based on Jenkins, AWS Code
  • Creation of scripts in Python and Bash
AWS Terraform Atlantis EKS Kubernetes Helm Helmfile Argo Prometheus Grafana Jenkins Python Bash
Sep 2018 - Jun 2021

Team Leader, DevOps

GreenSteam | Remote

Team Leader managing Support and DevOps Team.

  • Team management of Support and DevOps Team
  • Scrum Mastering, Kanban board management
  • Product Owner of Infrastructure/CI/CD
  • DevOps Engineer for Cloud infrastructure
  • Management of Cloud: AWS, Terraform, Atlantis
  • Management of Kubernetes: EKS, Helm, Helmfile, Argo
  • Implementing and designing monitoring solution based on Prometheus/Grafana/Alertmanager/EFK
  • CI/CD based on Jenkins, AWS Code
  • Management of software tools: Bitbucket, Jira, Confluence
AWS Terraform Atlantis EKS Kubernetes Helm Helmfile Argo Prometheus Grafana Jenkins Python Bash Bitbucket Jira Confluence
Aug 2016 - Aug 2018

DevOps Engineer

GreenSteam | Remote

DevOps Engineer for Cloud infrastructure and embedded platform.

  • DevOps Engineer for Cloud infrastructure and embedded platform
  • Management of Cloud: AWS, Terraform, Puppet
  • Management of Kubernetes: EKS, Helm, HelmFile, Argo
  • Implementing and designing monitoring solution based on Prometheus/Grafana/Alertmanager/EFK
  • Creation and administration of CI/CD environment on Jenkins
  • Creation of scripts in Python and Bash
AWS Terraform Puppet EKS Kubernetes Helm Argo Prometheus Grafana Jenkins Python Bash
Jan 2014 - Jul 2016

Systems Administrator

Polkomtel | Remote

Application administrator for J2EE applications.

  • Application administrator for J2EE applications
  • Management of Web services: Apache2, MS SQL, MySQL, Jboss, Wildfly, Tomcat, ELK stack
  • Management of software tools: Bitbucket, Jenkins, Nexus, Zabbix, Artifactory, SVN
  • Management of Citrix XenServer virtualization platform
  • Creation and administration of CI/CD environment
  • Monitoring of high availability systems 24h/7
Linux Apache2 MySQL MS SQL JBoss Wildfly Tomcat ELK Jenkins Zabbix Citrix XenServer Bash
Jun 2013 - Dec 2013

Junior Network & ICT Specialist

Eniro Polska | Remote

Network and ICT Specialist managing Open Source systems.

  • Management of Open Source systems: Debian, RH
  • Management of Web services: Apache2, nginx, Bind9, Zabbix, MySQL, SVN, Asterisk
  • Management of VMware virtualization platform
  • Management of backups solutions: Bacula
  • Operation and configuration of network solutions: Cisco, FortiNet
  • Creation and implementation of work automation solutions: Puppet, Jenkins, Bash scripts
Debian RHEL Apache2 nginx MySQL VMware Bacula Cisco FortiNet Puppet Jenkins Bash
Aug 2012 - Jun 2013

Users Support Assistant

Eniro Polska | Remote

End users support and IT infrastructure maintenance.

  • End users support
  • Maintenance and service for PCs, laptops, mobile and servers equipment
  • Systems management: Windows XP/7, Windows Server 2003/2008, Debian, MacOS, Android, iOS
  • Management of Active Directory environment
  • Management of ICT infrastructure: Alcatel, Cisco
  • Installation of network infrastructure
Windows Server Debian MacOS Active Directory Cisco Alcatel
Download Full Resume

# Open Source Contributions

Contributing back to the community through merged pull requests. Built with skills gained from professional experience.

feature
#123
kubernetes/kubernetes

Sample Contribution

This is a placeholder for open source contributions.

Go
Merged Jan 2025 View PR
View All Contributions

# Education

Academic foundation in computer science and networks. See how this knowledge translates into technical skills and real projects.

2012 - 2016

Master of Science

Computer Science

University Name | City, Country

2008 - 2012

Bachelor of Science

Computer Science

University Name | City, Country

# Get In Touch

Have a project in mind? Let's build something great together. Check out my projects and experience to see what I can do. No spam, I promise. I hate it as much as you do.

contact@terminal ~ %

Pro tip: Being specific helps me help you better!

Sending message...

Contact Information

Location

Remote / Worldwide Timezone flexible!

Response Time

Within 24 hours Usually faster!

Connect With Me

GitHub LinkedIn Twitter Email

Available for new projects

Currently accepting freelance and contract work

// Fun fact: This form has 99.9% uptime