Devops Engineer Senior

Sergey Buyanov

New York, NY +1-929-***-**** *********@*****.***

https://www.linkedin.com/in/sergeybuyanov/

Summary

Seasoned DevOps Engineer with 9+ years of experience delivering transformative solutions in business operations, infrastructure optimization, and application performance. Demonstrated expertise in cloud-native architectures, CI/CD pipeline automation, and infrastructure as code (IaC) to drive operational efficiency, scalability, and cost savings. Adept at bridging the gap between development and operations teams to streamline workflows and accelerate innovation across diverse industries.

Achievements

Achieved a 50% improvement in IT process efficiency while reducing operational costs by optimizing workflows, automating key tasks, and improving resource utilization. Resolved critical system performance issues through network migrations, reconfigurations, seamless integrations, and advanced troubleshooting

Experience

FULLBEAUTY Brands, New York, NY

Senior DevOps Engineer

January 2024 – January 2025

Migrated a legacy stack application deployed on EC2 to a serverless architecture and managed the process using a GitOps approach with Code Pipeline, Lambda, AWS ECS, API Gateway, RDS Aurora Serverless, DynamoDB.

Developed solutions for replicating production and staging RDS PostgreSQL databases.

Automated security compliance checks using Terraform, Prowler, AWS ECS, Lambda and Security HUB reducing manual audit efforts by 60% and improving cloud security posture through proactive communication with security team.

Transitioned from manually managing resources to automating infrastructure provisioning and management using Terraform, AWS CDK and SAML, fostering a culture of efficiency and consistency across teams.

Transited CI/CD deployment pipelines from CircleCI to AWS Code Pipeline.

Aligntech (Invisalign), New York, NY

Senior DevOps Engineer

March 2021 - November 2023

Directed the design and deployment of highly scalable serverless cloud applications on AWS, leveraging Python (Flask), REST APIs, API Gateway, and Lambda functions to seamlessly meet business requirements.

Led the migration from Rancher to EKS Kubernetes clusters, utilizing ArgoCD for GitOps, and integrated Grafana, Prometheus and Loki for enhanced system monitoring and faster incident response.

Conducted security training for development teams, increasing secure coding practices by 40%.

Optimized DevOps workflows by adopting modern practices such as Git branching strategies, containerization with Docker, and leveraging tools like Bitbucket, Bamboo, Helm, and JFrog Artifactory to streamline CI/CD pipelines and enhance team productivity

Streamlined infrastructure management by leveraging Terraform modules and AWS CDK (TypeScript) in close collaboration with development teams, enabling efficient provisioning, improved resource allocation, and significant cost optimizations across cloud environments

Virtual Health, New York, NY

DevOps Engineer

July 2020 - March 2021

Developed Terraform modules with Ansible, accelerating deployment speed and system efficiency, and deployed with Jenkins using multi-stage pipelines.

Created infrastructure from scratch for a SaaS application, ensuring scalability and high availability.

Led the migration from monitoring from Zabbix to Datadog, improving system monitoring and performance insights.

Achieved 99% compliance with industry standards like HIPAA and SOC 2 through proactive vulnerability management.

Implemented GitOps practices to orchestrate infrastructure changes via pull requests, maintaining code integrity.

Digital Edge, New York, NY

DevOps Engineer

February 2019 - July 2020

Implemented Infrastructure as Code (IaC) with Terraform and Ansible on AWS, significantly cutting provisioning time in a mixed Windows and Linux environment within the finance sector.

Enhanced CI/CD pipelines with Jenkins and Docker, boosting deployment frequency from weekly to daily.

Crafted data models for serverless architectures, balancing performance with cost-effectiveness in AWS Lambda implementations.

Spearheaded SOC2 compliance initiatives, fortifying the organizational security posture. Fostered cross-functional teamwork, aligning DevOps practices with business objectives to drive technological advancement and operational excellence.

Sibers.

Linux Administrator Team Lead

April 2008-December 2018

Led a Linux administration team, managing MySQL, MS SQL Server, and PostgreSQL installations, ensuring optimal database performance and reliability.

Optimized LAMP stack performance, improving server efficiency and reducing response times through fine-tuned configurations and proactive monitoring.

Spearheaded the deployment of scalable and cost-effective cloud infrastructure on AWS and Azure, showcasing expertise in cloud architecture and implementation.

Automated CI/CD pipelines using Jenkins with Git webhooks and Poll SCM, streamlining workflows and reducing deployment time.

Designed and maintained Chef Cookbooks to automate deployment services, increasing operational efficiency and consistency across environments.

Administered source code management systems (GIT and SVN) and issue tracking tools (Redmine), ensuring smooth collaboration across cross-functional teams.

Developed and implemented custom Bash and Python scripts to automate routine tasks, significantly improving team productivity and reducing manual workload.

Monitored system performance and reliability, identifying and resolving potential issues before escalation to minimize downtime and maintain system integrity.

Technical Skills

Cloud Platforms

Amazon AWS (RDS, Lambda, TGW, VPC, Route53, API Gateway, EC2, CloudWatch)

Microsoft Azure, Google Cloud

CI/CD Tools

Jenkins, Bamboo, Terraform, CloudFormation, Serverless, Code Pipeline, CircleCI, GitOps

Containers & Orchestration

Docker, Kubernetes, (AWS ECS, EKS, Rancher), Helm

Infrastructure Automation

Terraform, Ansible, CloudFormation

Monitoring & Logging:

Prometheus, Grafana, Datadog, Splunk, Sumologic, Datadog

Version Control

GitHub, GitLab, Bitbucket, AWS Code Commit

Programming Languages

Bash, Python, Ruby

Security & Compliance:

SOC2, HIPAA

Education

Bachelor’s degree in Computer Science

Novosibirsk State University

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