Orest Stetsiak Email & Phone Number

San Francisco, California, United States

Lviv, Ukraine

Contribution:* Developed Terraform modules to deploy and configure the entire GCP infrastructure (GKE), as well as external services, like CloudAMQP (RabbitMQ), EventStoreCloud, Mongo Atlas, and ElasticCloud.* Established connectivity between them, using VPC peering.* Introduced secrets management using the “external-secrets” tool and Vault (HCP).* Installed essential Helm charts using Terraform.* Built a base Helm chart for more than 20 microservices for a new product.* Assisted with apps dockerization and implemented improvements in the testing stage to reduce build time.* Implemented GitLab CI/CD pipelines with quality gates and configured monitoring and logging solutions.*Conducted a proof of concept for logs aggregation using tools such as fluent-bit, kube-prometheus-stack, VictoriaMetrics, and Grafana.* Support routines, maintain self-hosted ELK (now migrated to ElasticCloud), FusionAuth and GitLab security upgrades, GitLab Runner autoscaling using Docker Machine, Snyk and Datadog integration, refactoring/migrating Kafka clusters, and providing support for legacy on-premise infrastructure consisting of approximately 20 servers.

Lviv, Ukraine

Contribution:* Dockerized ~10 PHP/FPM microservices* Developed Terraform modules to deployment infrastructure and application in an autoscaled AWS ECS environment, ensuring scalability and flexibility.* Configured multy origin Cloudfront distribution to efficiently serve frontend static files.Built CI/CD pipelines using Jenkins Pipelines, enabling automated software delivery and deployment processes.* Created CloudWatch dashboards and alerts to monitor system performance and health, ensuring timely detection and response to issues.Installed NewRelic APM to identify and resolve performance bottlenecks, discovered during performance testing.* Successfully released the rebranded product to production, ensuring a smooth launch.* Deployed a self-hosted ELK stack for efficient logs aggregation and analysis.* Monitor main the RDS instance.

Lviv, Ukraine

Contribution:* Dockerized a monolithic application, built with Ruby on Rails (RoR) and Node.js, enabled containerized deployment for improved scalability.* Developed Terraform modules to deployment infrastructure and application in an autoscaled AWS ECS environment* Prepared and executed the migration of the application to AWS ECS in a highly available and self-healing mode with auto scaling.* Built robust CI/CD pipelines from scratch using Jenkins Pipelines and AWS CDK with Python boto, automating the software delivery process and ensuring quality checks such as unit tests, test coverage, spellcheck, and code quality through GitHub checks on pull requests. Added Sonatype Nexus for storing and version Ruby Gems.* Logging and Monitoring: ELK (Elasticsearch, Logstash, Kibana)Implemented pre-release deployment testing and performance testing on the stage environment, ensuring that releases were thoroughly tested and met performance requirements, no issue with running DB migration under load (JMeter).* Automate mobile builds to speedup the deployment process for mobile team.Provided assistance to a related project with environment setup and CI/CD implementation, utilizing tools such as Jenkins, Terraform, .NET Core, Docker, AWS ECS, and Lambda.* Deployed OpenVPN to secure access to cloud infrastructure.

Lviv, Ukraine

Building maps and providing support during the verification stage, configure and fix related issues, improve CI/CD processes. Support during migrating from legacy infrastructure. Performance optimization. Toolstack: Python/Bash, Jenkins, Git/Gerrit, AWS.

Lviv, Ukraine

Built near HIPAA compliant dev/qa and prod environments in AWS and CI/CD pipelines. Fixed a bunch of security and vulnerability issues from the operation side. Developed AWS CloudFormation template for all the AWS infrastructure.Toolstack: Jira/Confluence, Git, Jenkins, Nexus OSS, RunDeck, Ansible, Bash/Python scripts, Python boto3, MySQL, Nginx, SBT, RPM, Amazon AWS (EC2, RDS, VPC, IAM, CloudFormation, CloudWatch, SNS, CLI)

Lviv, Ukraine

Team member of Tier1 support team which supports next Cisco Cloud Web Security services:Ironport, ScanSafe, KhalifaToolstack:Jira, ConfluenceMySQL/CouchDBRabbitMQ/ActiveMQBash/Python automation scriptsGit/SVN/CVSVSphere/KVMPuppet/CFEngine/CobblerBigPanda, Nagios, Zenoss, Cacti, Grahite, CollectdPXE boot, Kickstart

Lviv, Ukraine

Tools/Rechnologies:Jira/ConfluenceAmazon AWS (IAM, EC2, RDS, VPC, CF, CLI)Git/SVN+Trac+SavanaVServerPuppetZabbix/NagiosCI/CD/TeaCityRunDeckBash/PythonBuild RPM

Lviv, Ukraine

System administrator in an ISP company, I was responsible for all installation and maintenance all of local and remote networks, equipment, servers, Internet availability, and user support. Support network equipment of next brands: Foxgate, Mikrotik, Ubiquiti, Hewlett-Packard, Siemens.

Bachelor, Computer Engineering

Аcademician, Network Technology And System Administration

Specialist, Computer Systems And Networks

Flexible Methodologies Of Developing Automated Configuration Management Systems. Devops Lv 119

15.07.14-22.10.14

Education record

IT Essentials: PC Hardware and Software IT Essentials II: Network Operating Systems CCNA Exploration – Network Fundamentals CCNA.

Python/Django

2 month intensive course

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