Maksimelyan Tamashevich
Verified Expert in Engineering
DevOps Engineer and Developer
Huntersville, NC, United States
Toptal member since April 17, 2023
Maksimelyan has 12 years of experience as a DevOps, infrastructure, systems network, and telecommunication engineer. He's a certified Kubernetes Administrator, Associate Google Cloud Engineer, HashiCorp Terraform Associate, and Cisco CCNA R&S. Maksimelyan is keen on GCP services: Cloud Storage, CLB, Cloud SQL, Datastore, Memorystore, Pub/Sub, VPC, VPC peering, Cloud DNS, Cloud Functions, Cloud Build, IAM, GKE, Composer (Airflow), Cloud Run, Anthos Service Mesh (Istio), and Anthos on Bare metal.
Portfolio
Experience
- Linux - 10 years
- Kubernetes - 6 years
- Istio - 4 years
- Helm - 4 years
- Terraform - 4 years
- Docker - 4 years
- GitLab CI/CD - 4 years
- Google Cloud - 4 years
Work Experience
Senior DevOps Engineer
ACN
- Migrated applications and internal infrastructure from on-premises to AWS.
- Migrated codebase from SVN to GitLab/GitHub and implemented standard GitLab CI/CD pipelines for automated builds and deployments of Java and Node.js applications (Serverless Framework).
- Led Aurora MySQL migrations from v2 to v3 using a blue-green deployment strategy and configured replication via binary logging.
- Managed Oracle 11g to Amazon RDS for Oracle 19c migration, including infrastructure setup (RDS with EFS and S3) and AWS DMS full-load and CDC.
- Planned and executed GitLab upgrades from version 15.3.1 to 18.5 with zero downtime for dependent services.
- Implemented an Infrastructure as Code (Terraform) solution, including GitLab CI/CD pipelines for Terraform deployments, as well as a pipeline for automated Terraform module testing, and integration with the Serverless Framework.
- Mentored mid- and senior-level (development, DevOps, and network) engineers.
- Worked with the security team to enhance platform security through HTTPS/SSL, short-lived credentials, Oracle DB auditing, CIDR-based network restrictions, and GitLab CI/CD security scanning.
Senior DevOps Engineer
NAYA Technologies | EPAM Systems
- Built a deployment framework for automated installation of the OSDU platform to any Kubernetes cluster based on a Helm chart with dependencies.
- Deployed the OSDU platform to new environments based on GCP—GKE and ASM—and on-premise—Anthos on bare metal and ASM.
- Developed CI/CD for checking the installation and upgrade of the OSDU platform using GitLab CI.
- Participated in a project mentoring program as a mentor for a junior DevOps engineer.
Senior DevOps Engineer
EPAM Systems
- Developed a deployment framework for the automated installation of the OSDU platform to GCP based on a Terraform module.
- Wrote, troubleshot, refactored, and fixed CI/CD pipelines for GitLab CI. Deployed the OSDU platform to new environments. Wrote, fixed, and improved bash and Python scripts, making them idempotent.
- Implemented a new approach for deploying Java-based services with a common pipeline and refactored pipeline settings and variables to decrease the time for deploying code to the development environment.
- Developed Helm charts to deploy infrastructure and services.
- Moved services from Google Cloud Run to Google Kubernetes Engine with Anthos Service Mesh.
- Provided L2 and L3 technical support for the development and QA teams.
Network Systems Engineer
BeCloud LLC
- Resolved issues related to dense wavelength-division multiplexing (DWDM) and IP/MPLS networks by consistently troubleshooting.
- Configured Huawei network equipment, namely OSN8800/9800, NE5000, NE40, and ATN950.
- Maintained the network department infrastructure—including Windows and Linux servers—based on VMware 6.5, DNS, monitoring with Zabbix and U2000, and backup servers.
- Wrote Python scripts for generating reports of network bandwidth usage by clients for internet, peering, and L2/L3VPN.
- Built a bash script to back up configurations from all network equipment.
Network Engineer
Techmetrika-NOC LLC
- Resolved issues related to networks and telecommunications by consistently troubleshooting and monitoring.
- Provided technical support to customers from the Oversun data center.
- Configured Cisco and D-Link network equipment (L2 and L3).
Project History
3-tier App
https://gitlab.com/mtamashevich/toptal-home-project• Automatic artifacts creation and pushing them to the registry,
• Infrastructure provisioning for a simple 3-tier app in GKE using GitLab CI, Docker, Helm, Terraform, and GCP.
Education
Master's Degree in Modeling of Digital Telecommunication Signals
Belarusian State University Informatics and Radio Electronics - Minsk, Belarus
Bachelor's Degree in Radio and Television Broadcasting
Belarusian State University Informatics and Radio Electronics - Minsk, Belarus
Certifications
AWS Solutions Architect Associate
Amazon Web Services (AWS)
AWS Certified Cloud Practitioner
Amazon Web Services (AWS)
Certified Professional Cloud Architect
Google Cloud
Terraform Associate
HashiCorp
Certified Kubernetes Administrator
The Linux Foundation
GCP Associate Cloud Engineer
Google Cloud
CCNA Routing and Switching
Cisco
Skills
Libraries/APIs
Node.js
Tools
Terraform, Google Kubernetes Engine (GKE), GitLab CI/CD, Istio, Postman, Helm, GitLab, Amazon CloudWatch, Amazon Elastic Container Service (ECS), VMware, ELK (Elastic Stack), Kibana, Jenkins, GitHub, Amazon Virtual Private Cloud (VPC), Amazon CloudFront, AWS IAM
Paradigms
DevOps, Cisco Certified Network Associate Routing & Switching, Radio Frequency (RF) Protocol
Platforms
Kubernetes, Docker, Amazon Web Services (AWS), Google Cloud Platform (GCP), Amazon EC2, Visual Studio Code (VS Code), Linux
Storage
Google Cloud, Google Cloud Storage, Amazon S3 (AWS S3), Google Cloud SQL, Google Cloud Datastore, PostgreSQL, Elasticsearch, Oracle RDS, Amazon Aurora, MySQL
Languages
Bash Script, Java, TypeScript, Python
Frameworks
Serverless Framework
Other
DevOps Engineer, Containerization, Kubernetes Operations (kOps), AWS Secrets Manager, Windows 10, Windows Subsystem for Linux (WSL), Networks, Anthos Service Mesh, IP/MPLS, Dynamic Routing, Multiprotocol Label Switching (MPLS), Dense Wavelength Division Multiplexing (DWDM), Dynamic Host Configuration Protocol (DHCP), Routing, Troubleshooting, Infrastructure as Code (IaC), CI/CD Pipelines, TV Broadcasting, Serverless, Virtual Private Cloud (VPC), Cloud Engineering, Telecom Equipment & Solutions, Modeling, Digital Signal Processing, Pub/Sub, Google Cloud Functions, DNS, Cisco Switches, Network Operation Centers (NOC), TCP/IP, Monitoring, GitOps, Identity & Access Management (IAM), Google Cloud/Suite, Film & Television, Cloud, Containers, Amazon RDS, AWS Database Migration Service (DMS), AWS WAF, AWS IAM Identity Center, GitHub Actions, IT Security
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