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Location

Poland

Rate

$12  / per hour

Years of experience

18+

About

I am a seasoned professional with extensive experience in cloud computing, DevOps, provisioning, and monitoring technologies. My skill set includes expertise in AWS, Docker, Kubernetes, Gitlab CI/CD, Terraform, Ansible, and various monitoring tools such as Prometheus and DataDog. I have a strong background in networking, with proficiency in IPSec, OpenVPN, and Cisco ASA, and I am adept at programming in Bash, Python, and Perl. My experience spans managing diverse operating systems, including Linux, Unix, and macOS, and I am fluent in both Polish and English. I hold several certifications, such as RHCE, RHCSA, and Cisco CCNA1, demonstrating my commitment to continuous professional development. Throughout my career, I have successfully executed numerous cloud migrations and infrastructure projects. At Assertis, I migrated an entire data center to AWS and automated deployment processes using Docker and Gitlab CI/CD. My role involved designing and implementing comprehensive logging and monitoring systems and managing complex server provisioning and networking tasks. At SocialTravel and CloakCoin, I led the migration of server infrastructures to AWS and implemented Infrastructure as Code (IaC) using Terraform and Ansible. My previous positions at 3mdeb, Logisfera Nova, Cube ITG, Net P.C., and TKCO involved various responsibilities, including network administration, system architecture, and team management. My academic background includes an Engineer's degree in Information Technology from the Polish Japanese Institute of Information Technology.

Tech Stack

Network Administrator, Ansible, AWS, Docker, Jenkins, Kubernetes, Linux, Network, Vagrant

Experience

  • Migrated entire data centers and server infrastructures to AWS, including services such as EC2, RDS, S3, and VPC, ensuring seamless transitions and optimized cloud environments.
  • Implemented and managed CI/CD pipelines using Gitlab CI/CD and Jenkins, automating the deployment processes to improve efficiency and reduce manual intervention.
  • Designed and deployed infrastructure using Terraform and Ansible, enabling repeatable and consistent environment setups and provisioning.
  • Dockerized services and managed container orchestration with Kubernetes, enhancing deployment flexibility, scalability, and resource utilization.
  • Developed and maintained comprehensive monitoring systems using Prometheus, Zabbix, and DataDog, and logging solutions with the ELK stack, ensuring system reliability and quick issue resolution.
  • Managed IPsec site-to-site connections, OpenVPN for secure access, and configured firewalls and routers (Cisco ASA, Pfsense), ensuring secure and reliable network communications.
  • Automated server management and provisioning processes using Ansible and Docker, transitioning from manual setups to fully automated environments, increasing operational efficiency and consistency.

Employment history

DEVOPS / SYSOPS / NETWORK ADMINISTRATOR, Assertis November 2014 - Present

• Migrated whole customer’s data center and site-to-site connections to AWS cloud (CloudWatch, Direct Connect, EC2, ECR, ECS, EFS, ElastiCache, Elasticsearch, IAM, KMS, Lambda, RDS, Route 53, S3, SNS, SQS, SSM, VPC).
• Migrated code deployment process from Git pulls using Jenkins to fully automated DEBs building and deployment using Jenkins and eventually to Docker with Gitlab CI/CD.
• Designed and implemented logging and monitoring systems. Monitoring evolved from Zabbix to Datadog that currently is migrated to Prometheus, logging from Papertrail to ELK stack with Fluent(bit|d).
• Server management/provisioning evolved from complete manual over fully Ansibled on EC2 to Dockers on ECS provisioned using Terraform.
Currently in process of implementing Kubernetes + KOPS + Terraform on AWS.
• Managed IPsec site-to-site connections and routing between customer’s AWS cloud and other companies (data exchange) mostly using PFsense and AWS DC. Also managed developers dial-in access using IPsec and OpenVPN.

DEVOPS, SocialTravel July 2019 - November 2019

• Migrated whole customer’s server infrastructure from DigitalOcean to AWS cloud (AWS Backup, CloudWatch, EC2, EFS, ElastiCache, Elasticsearch, IAM, RDS, Route 53, S3, SSM, VPC).
• Newly created infrastructure was 100% described as a code in Terraform and Ansible (IaC).
• Rewritten nginx configuration for all services.

DEVOPS, CloakCoin April 2018 - January 2019

• Migrated whole customer’s server infrastructure to AWS cloud (CloudFront, CloudWatch, ECR, ECS, EFS, IAM, Lambda, RDS, Route 53, S3, SNS, VPC, WAF & Shield).
• Newly created infrastructure was 100% described as a code in Terraform (IaC).
• Dockerised every service owned by customer and placed it on ECS.
• Moved every project maintained by customer to GIT along with creating continuous deployment (Gitlab CD).
• Created automatic backups of all persistent data owned by customer.

DEVOPS, 3mdeb Embedded Systems Consulting June 2017 - November 2017

• Automated build process of multiple BIOS versions that customer was developing for numerous hardware platforms (Gitlab CD).
• Prepared Ansible configuration for most critical customer’s physical servers.
• Prepared Terraform configuration for majority of customer’s AWS infrastructure.
• Isolated critical parts of customer’s infrastructure from public access using OpenVPN along with other security enhancements

SYSOPS / NETWORK ADMINISTRATOR, Logisfera Nova November 2012 - May 2016

• Designed, created and maintained safe and secure network connections over internet, between various office branches and office itself, mainly using CISCO hardware.
• Designed, created and maintained server environments in office, cloud and data center.
• Server provisioning was done using Puppet, eventually whole server setup was migrated to Ansible that was running on top of Vmware ESXi and OktaWave cloud

LINUX SYSTEM ARCHITECT, Cube ITG May 2014 - August 2014

• Designed and created Linux distribution tailored to customer needs.
• Distribution was designed to be robust and survive operating system wipeout. OS was installed on numerous monitoring stations across Poland that had only remote access.
• Provided installer allowed automation of OS installation and configuration.

SYSOPS / NETWORK ADMINISTRATOR, Net P.C. December 2009 - September 2012

• Administered and serviced hosting and dedicated servers, vps, arrays, switches and routers.
• Modernised and expanded networks in company and for customers.
• Designed and implemented IT systems tailored to customers individual needs (several governments projects).

SYSOPS / NETWORK ADMINISTRATOR, TKCO January 2006 - September 2006

• Designed, implemented, maintained, modernized ISP network (200 nodes).
• Hosted and administered servers and routers.
• Managed team of three people, assigned tasks and ensured all services standards were met.

Education history

Polish Japanese Institute of Information Technology 2009 - 2013 ENGINEER’S DEGREE IN INFORMATION TECHNOLOGY
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