Halil Bozdogan

Senior DevOps Engineer

Experienced Senior DevOps Engineer with a strong background in software engineering, infrastructure automation, and cloud-native transformations. Skilled in building scalable systems, optimizing CI/CD pipelines, and managing containerized applications on Kubernetes. Proven record of improving performance, reliability, and developer productivity across complex environments.

Work

Senior DevOps Engineer

– Present
Istanbul, Turkey

Senior DevOps Engineer at Nesine, the largest legal online betting provider in Turkey, leading modernization and automation initiatives across CI/CD, observability, and infrastructure.

  • Led the full migration from VM-based deployments to Kubernetes using Docker Buildx (Bake), Octopus Deploy, TeamCity, and custom deployment automation scripts.

  • Implemented and managed Octopus Kubernetes Agents, enabling environment-specific deployments and streamlined release processes.

  • Deployed and integrated GitLab Kubernetes Runners with Docker Buildx, providing isolated, scalable, and pod-based CI/CD execution.

  • Developed New Relic dashboards for real-time visibility into system performance and reliability, monitoring high-traffic services processing up to 70K requests per second across 4–8 pods (3 CPU / 4 GB each).

  • Built custom NGINX reverse-proxy deployments for microservices to enhance caching, routing, and centralized logging.

  • Developed a Blazor-based internal monitoring application to track Octopus Deploy pipelines and TeamCity build statuses.

  • Deployed and configured self-hosted Sentry for frontend teams to monitor and debug React applications effectively.

  • Integrated SonarQube with TeamCity pipelines to enforce Quality Gates and ensure build integrity based on static analysis results.

Senior Software Engineer

–
Ankara, Turkey

Senior Software Engineer focusing on backend performance, CI/CD improvements, and modernization of internal development practices.

  • Identified and resolved performance issues in core Web API services.

  • Designed and implemented new features to support multi-timezone operations for international users.

  • Migrated source control from TFS to Git, improving development collaboration and productivity.

  • Implemented CI/CD pipelines on Azure DevOps to automate build and release workflows.

Senior Software Engineer

–
Ankara, Turkey

Technical leader for large-scale government software projects, specializing in system architecture, high availability, and performance optimization.

  • Architected and developed high-availability and fault-tolerant systems for public sector applications.

  • Modernized legacy .NET Core applications by migrating from 2.x to LTS versions.

  • Optimized large and complex codebases to improve performance and maintainability.

  • Established CI/CD workflows with TFS and on-premises Kubernetes clusters.

  • Containerized Windows Service applications using Docker and deployed to Kubernetes.

  • Led code quality and security reviews to ensure compliance with internal and external standards.

Senior Software Engineer

–

Senior Software Engineer contributing to secure, high-performance systems for defense and government clients.

  • Developed a high-performance non-blocking web server for custom messaging integrations.

  • Obtained security clearance for classified military projects.

  • Collaborated closely with clients to design resilient, scalable systems.

Software Engineer

–

Software Engineer building integration services for Anadolu Agency’s national news infrastructure.

  • Designed and implemented Windows and web services for integrating third-party systems into Anadolu Agency’s national news infrastructure.

Application Development Consultant

–
Ankara, Turkey

Application Development Consultant responsible for enterprise application design, shared frameworks, and mentoring junior developers.

  • Conducted requirements analysis and system design for enterprise applications.

  • Trained interns and junior developers in best practices and coding standards.

  • Developed shared frameworks and optimized legacy libraries for performance.

  • Analyzed and remediated security vulnerabilities identified in audit reports.

System Support Chief

–

System Support Chief managing core infrastructure for Demir Export.

  • Administered Windows Server and Active Directory infrastructure.

  • Deployed and customized SharePoint-based collaboration environments.

Education

Hacettepe University

Computer Education and Instructional Technologies
–

Bachelor's Degree

Projects

National Health System - e-Nabiz

–

National health platform collecting and serving patient treatment data and healthcare information across Turkey.

  • Collected patient treatments and visits from healthcare providers across Turkey.

  • Displayed laboratory results, prescriptions, and treatment details to individuals via the e-Nabiz portal.

  • Handled over 1 million daily requests from healthcare providers.

  • Stored over 6 million patient data entries in a NoSQL (Couchbase) database with more than 20TB capacity.

  • Operated 150+ servers running Couchbase clusters with a high-availability setup serving the e-Nabiz Portal.

  • Integrated with internal and external systems, including diagnostic imaging services.

  • Migrated legacy Windows Service applications to Docker containers.

  • Configured key Kubernetes components, including MetalLB, NGINX-Ingress, and Harbor Registry.

Ministry of Youth and Sports - E-Transition System

–

Digital transformation project for the Ministry of Youth and Sports.

  • Digitized ministry operations to reduce paperwork and improve internal correspondence.

  • Identified bottlenecks in legacy code and improved performance.

  • Developed reports for multiple modules.

  • Supported junior staff during development and implementation.

Turkey Scholarships Application System

–

Government scholarship application platform for international students.

  • Enabled international students to apply, track applications, and receive notifications.

  • Implemented Azure Cloud-based architecture using WebApps, Functions, and SQL Database.

  • Integrated with external systems for academic tracking, arrivals/departures, and law enforcement checks.

  • Handled over 150,000 scholarship applications within a single month in 2019.

  • Implemented performance monitoring and diagnostics using Application Insights.

  • Developed complex and detailed filtering capabilities for decision-makers.

Internal Company Portal for HR and Finance

–

Internal portal for HR and Finance workflows, record keeping, and reporting.

  • Simplified HR and Finance workflows, record keeping, and reporting.

  • Conducted requirement analysis and technology selection for scalability and low TCO.

  • Developed reusable Security and Auditing modules as libraries.

Network Device Monitoring and Management

–

Centralized monitoring and management of network devices for the Turkish Armed Forces.

  • Monitored and managed 1000+ devices from a central location.

  • Analyzed customer bug reports and field experiences to identify bottlenecks.

  • Optimized legacy code for performance and reliability.

  • Adopted new technologies to improve system reliability.

Central Bank of the Republic of Turkey Service Integration

–

Integration between CBRT Announcement Service and Anadolu Agency Finance Data Portal.

  • Integrated CBRT Announcement Service (Reuters Marketlink based) with Anadolu Agency Finance Data Portal.

  • Analyzed Reuters Marketlink RS232 serial message protocol and template update system.

  • Received update messages from serial ports and applied them to correct announcement templates.

  • Maintained version history and displayed announcements on the web portal.

Certificates

Skills

DevOps & Cloud-Native

  • Kubernetes
  • Docker
  • Docker Buildx
  • Octopus Deploy
  • TeamCity
  • GitLab CI
  • Azure DevOps
  • Kubernetes Runners
  • Infrastructure Automation

Backend & .NET

  • .NET
  • .NET Core
  • Web API
  • High Availability
  • Performance Optimization

Observability & Quality

  • New Relic
  • Application Insights
  • Sentry
  • SonarQube
  • Logging
  • Monitoring
  • Quality Gates

Languages

Turkish

Native

English

Fluent