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Berkay Yilmaz

@berkayyilmaz

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Senior Site Reliability Engineer and Cloud DevOps specialist with 8 years' hands-on experience.

Turkey

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What I'm looking for

I am seeking senior SRE/Cloud DevOps roles where I can lead automation, improve reliability, optimize cloud costs, and work with cross-functional teams in a collaborative, growth-oriented environment.

I am a Senior Site Reliability Engineer and Cloud DevOps specialist with eight years of hands-on experience architecting, migrating, automating, and optimizing mission-critical deployments on AWS. I have led and contributed to international projects, ensuring timely delivery and scalable, secure cloud infrastructures.

My background includes managing AWS EKS clusters, Terraform-based infrastructure as code, CI/CD pipelines (GitHub Actions, Jenkins, TeamCity), observability platforms (Datadog, Prometheus, Grafana, New Relic), and cost optimization efforts that reduced monthly cloud spend. I have implemented Helm charts, ArgoCD/Argo Workflows, Vault for secrets, and various AWS services like RDS, MSK, EC2, DynamoDB, DocumentDB, Elasticache.

I hold a CKA certification and a technical education background in computer science and mathematics. I bring a practical, security-minded approach to cloud engineering, a passion for automation, and a track record of improving reliability and performance for high-scale consumer applications.

Experience

Work history, roles, and key accomplishments

Current

Site Reliability Engineer

Current

Metric Gaming

Aug 2023 - Present (2 years 10 months)

Manage and maintain AWS EKS applications and core cloud services, implement observability with Datadog, and optimize infrastructure via Terraform to ensure secure, cost-efficient production systems.

Terraform Datadog RDS)MSK IAM Infrastructure as Code Cost Optimization RDS

Senior DevOps Engineer

Cisco

Oct 2021 - Sep 2023 (1 year 11 months)

Led migration from Heroku to AWS, managed EKS cluster configuration and security, developed Helm charts and GitHub Actions pipelines, and integrated Argo Workflows/ArgoCD for Kubernetes deployments.

Helm GitHub Actions ArgoCD Kubernetes CI CD

Senior Site Reliability Engineer

letgo

Feb 2021 - Sep 2021 (7 months)

Operated highly scalable AWS infrastructure supporting tens of millions of users and 1,000+ servers, focusing on reliability and performance during rapid growth and high-traffic events.

AWS EKS Terraform New Relic Scalability Kubernetes Monitoring Performance Tuning

Cloud DevOps Engineer

BiTaksi

Sep 2020 - Feb 2021 (5 months)

Developed AWS infrastructure with Terraform, managed Kubernetes deployments with Helm, secured secrets with HashiCorp Vault, and implemented monitoring, CI/CD and production operations for microservices.

Terraform AWS Kubernetes Helm Jenkins Prometheus Grafana

Cloud Engineer

Azerion

Jun 2019 - Sep 2020 (1 year 3 months)

Built AWS infrastructure with Terraform and Packer, created CI/CD pipelines in TeamCity with Kotlin DSL, and implemented monitoring, logging and cost-optimization solutions across cloud platforms.

Terraform Packer TeamCity Kotlin Prometheus Grafana Loki Docker Cost Optimization

Cloud Operations Engineer

Sony

Mar 2017 - Mar 2019 (2 years)

Participated in on-premises to AWS migrations, automated deployments with Python/Bash and AWS CLI, managed monitoring via CloudWatch/Splunk, and supported CI/CD tooling and on-call incident response.

Python BASH AWS CLI Cloudwatch Splunk Gitlab Bamboo CI CD