Oguzhan Coskun (Oğuzhan Coşkun) — AWS Certified Solutions Architect & cloud/DevOps engineer, based in London 🇬🇧. I build infrastructure that runs fast, scales well, and (hopefully) never wakes me up at 3 AM 🚀. Mostly AWS, with fluent Python, Golang, and Bash.

Over a decade in production — since 2014 — from automating messy deployments to designing cloud platforms for fintech, e-commerce, and travel tech. I run my boutique consultancy nsource limited (London, founded 2019), helping teams modernise infrastructure, tighten delivery pipelines, and adopt an automation-first culture — with security and compliance baked in, not bolted on.

• 🏅 AWS Certified Solutions Architect · AWS Partner (Technical Accredited)
• 🌐 Site: nsource.io · ✍️ Writing: insights.nsource.io

ubernodes — the clean, Kubernetes-native way to run blockchain full nodes. An opinionated, battle-tested field guide (patterns, snapshots, storage, security) covering BSC, Polygon, Ethereum, and the Bitcoin family — the failure modes nobody else writes down.

• ~80% lower observability cost — managed → self-hosted Prometheus across 30+ EKS clusters, same SLA
• ~70% network cost cut in high-traffic Kubernetes (prefix delegation + pod/subnet placement)
• 7 consecutive PCI-DSS audits passed — zero downtime, regulated financial services
• 250k+ requests absorbed in under 30 minutes with zero downtime during an unannounced surge
• Built a modular AWS CodeDeploy migration path for legacy OpsWorks workloads that couldn't move to Kubernetes

• ☁️ AWS, Kubernetes, Docker
• 🛠 Terraform, CloudFormation, CDK
• ⚡ CI/CD — GitHub Actions, GitLab, Jenkins
• 📊 Observability — Prometheus, Grafana, CloudWatch
• 🧩 Python, Golang, Bash
• 🔐 Security & compliance — PCI-DSS, IAM, zero-trust, networking

♟ chess · 🍳 cooking · 📚 philosophy · 🔧 Raspberry Pi & IoT tinkering

💬 Always happy to talk DevOps, cloud, or open source. 📫 oguzhan@nsource.io · 🔗 LinkedIn · nsource.io