12.10.2026 aktualisiert

**** ******** ****
100 % verfügbar

Senior DevOps / Platform Engineer | AWS · EKS · Kubernetes · Terraform | SRE · GitOps

Hamburg, Deutschland
Weltweit
Bachelor's Degree in Aerospace Engineering
Hamburg, Deutschland
Weltweit
Bachelor's Degree in Aerospace Engineering

Profilanlagen

Cemal_Ceylan_CV.pdf

Über mich

Senior DevOps & Platform Engineer specializing in AWS, Kubernetes, Terraform, and GitOps. Experienced in managing 10+ EKS clusters, supporting 100+ microservices, and building secure, scalable cloud platforms. Focused on automation, reliability, observability, and cost optimization.

Skills

SREArgo CDGitOpsGitHub ActionsHelmPlatform EngineeringAmazon Web ServicesCloudfrontAmazon Elastic Compute CloudCloud-EngineeringDevOpsAnsiblePrometheusDatadogCloud PlatformIstioGrafanaAWS LambdaAWS VPCGitLabGitlab-CiAWS AuroraKubernetesTerraformAWS EKSDockerJenkinsDatabricks
Cloud & Platform Engineering
Experienced in designing, scaling and operating multi-account AWS platforms with 10+ Amazon EKS clusters, thousands of pods and 100+ microservices across different environments. Strong expertise in Kubernetes, Terraform, Helm, Argo CD, GitOps, Karpenter, KEDA and Docker.

CI/CD & Infrastructure Automation
Built and standardized CI/CD workflows using GitLab CI/CD, GitHub Actions and Jenkins. Developed reusable Terraform modules, automated infrastructure provisioning and dynamic development environments, enabling frequent deployments and self-service workflows for engineering teams.

Observability & Site Reliability Engineering
Designed and implemented monitoring and observability solutions using Datadog, Prometheus, Grafana, Loki, OpenTelemetry and CloudWatch. Experience with APM, centralized logging, alerting, incident response, troubleshooting and production reliability.

Cloud Security & Networking
Implemented AWS WAF and Shield Advanced protection, including rate-based rules, custom security policies, automated blocking and traffic analysis using Athena. Experience with IAM, VPC, Route 53, Keycloak, Istio and cloud networking.

Platform Modernization & Performance
Modernized production infrastructure and resolved database and application bottlenecks. Reduced peak-time processing queue backlogs by over 99% and improved application response times. Built scalable infrastructure supporting frequent releases and high-volume workloads.

Data Platforms & Infrastructure
Experience supporting Databricks, RudderStack and AWS-based data platforms. Built infrastructure and CI/CD integrations for data engineering teams. Worked with Aurora PostgreSQL, PostgreSQL, MySQL, MongoDB Atlas, Kinesis, EMR Serverless and OpenSearch.

Cloud Cost Optimization
Reduced AWS infrastructure costs by approximately 15% through resource right-sizing, architecture improvements, workload optimization, cleanup and commitment planning.

Serverless & Automation
Designed a serverless image optimization platform using AWS Lambda and CloudFront. Experience with Python, Bash, SQL, Ansible and Linux automation.

Technical Project Management
Background in coordinating cross-functional technical projects in aviation and safety-critical environments, including aircraft, UAV and software modernization initiatives.

Erfahrung

Berufserfahrung5 - 10 Jahre
Freelancer seit2022

Sprachen

DeutschgutEnglischverhandlungssicherTürkischMutterspracheKoreanischverhandlungssicher

Projekthistorie

DevOps Engineer

exmox GmbH
Joined as the first in-house DevOps Engineer during a major scale-up phase. Scaled and operationalized a multi-account AWS platform spanning 10+ Amazon EKS clusters. Built and standardized Terraform-based infrastructure and Kubernetes delivery workflows using Helm, GitLab CI/CD and Argo CD. Built observability across Datadog and Grafana, established AWS WAF and Shield Advanced protection, modernized production database and processing components, reduced AWS infrastructure costs by approximately 15%, and designed a serverless image optimization platform using AWS Lambda and CloudFront.

DevOps Engineer

PlanetWatch
Operated a high-volume AWS IoT and data platform with 100+ microservices running on Amazon EKS. Standardized application delivery through reusable Helm charts and GitLab CI/CD pipelines. Migrated application logs to Loki, eliminating CloudWatch log-ingestion costs. Built observability with Prometheus, Grafana and Loki, and provisioned AWS infrastructure with Terraform while supporting Istio service mesh, Keycloak-based identity and access management, OpenSearch, secrets management and EMR Serverless.

Freelance DevOps & Cloud Engineer

Independent / Upwork
Delivered DevOps, cloud infrastructure, and automation solutions across 10+ projects for multiple international clients, primarily on AWS, with additional exposure to GCP, Azure, and on-premises environments. Designed and provisioned cloud infrastructure using Terraform and CloudFormation, automated server configuration with Ansible, and deployed containerized applications using Docker and Kubernetes. Built Jenkins-based CI/CD pipelines supporting 20+ applications. Managed AWS services including EC2, EKS, ECR, RDS, S3, IAM, VPC, and CloudWatch, while improving infrastructure reliability, monitoring, and deployment automation.

Pilot & Technical Project Supervisor - Aircraft & UAV Systems

Turkish Air Force
Led and coordinated technical projects involving aircraft and UAV systems, working with cross-functional teams of 5+ across project planning, resource coordination, technical evaluation, operational constraints and delivery timelines. Contributed to software modernization and R&D projects involving aircraft and UAV systems. Served as a pilot across multiple aircraft platforms, accumulating 700+ flight hours in safety-critical operational environments.

Kontaktanfrage

Einloggen & anfragen.

Das Kontaktformular ist nur für eingeloggte Nutzer verfügbar.

RegistrierenAnmelden