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Serkan Altunöz

@serkanaltunoz

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I build secure, self-service AWS and Kubernetes payment platforms at scale.

Turkey

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What I'm looking for

I'm looking to build and operate secure, highly available cloud platforms, enable developers through self-service delivery, and improve reliability, security, automation, and cloud cost efficiency.

I'm currently delivering Mercedes pay's cloud payment platform at EPAM Systems, operating 20+ Amazon EKS clusters across 30+ AWS accounts in Europe and India. I build and run AWS infrastructure for seven payment products in a PCI-DSS regulated environment.

I've led zero-downtime EKS upgrade waves and Aurora PostgreSQL major upgrades, while building Terraform-based multi-account infrastructure, Datadog observability, and secure CI/CD delivery paths. My work has automated monthly maintenance across 30+ accounts, reducing a full week of effort to under an hour per cycle.

I enable product teams to deploy independently through GitHub Actions, Helm, and EKS, with security and observability embedded by default. I've also mentored seven developers and driven FinOps improvements worth 26–33% of monthly cloud spend.

Experience

Work history, roles, and key accomplishments

Current

Senior Systems Engineer (Platform Engineering / DevOps)

Current

EPAM Systems

Jun 2026 - Present (3 months)

Designed and built CI/CD automation for mobile payment SDKs, led platform-wide migration to GitHub Enterprise, and executed Aurora PostgreSQL major upgrades with zero downtime. Established FinOps practice and drove cost optimization measures across AWS accounts.