Kadir Ergün

Providing architecture consulting and technical implementation support for international clients.

• Designed microservices-based backend architectures for international clients
• Implemented containerized CI/CD pipelines and automated deployments
• Conducted architectural reviews and performance optimization initiatives

Directed municipal digital transformation with DevOps, applications, and KPI-driven governance.

• Implemented CI/CD, IaC and Kubernetes microservices via Azure DevOps, reducing deployment time by 40% and improving release reliability to 99%+.
• Delivered .NET Core APIs with MSSQL/LDAP integrations adopted by 10+ internal systems, improving authentication and workflow automation.
• Developed 15+ Power BI KPI dashboards, reducing manual reporting effort by 60% and enabling real-time operational insights.
• Managed 5+ vendor contracts and service agreements, reducing external delivery delays by 25%.

Led development of large-scale SaaS and digital platforms including WeFocus, Petal Maps, and e.huawei.com, serving tens of millions of users globally, improving platform scalability and performance.

• Led 4 cross-functional engineering teams (backend, frontend, DevOps, QA) delivering large-scale SaaS and digital platforms across multiple regions.
• Owned end-to-end solution architecture for multilingual distributed systems with focus on scalability, resilience, and performance optimization.
• Designed and evolved microservices-based architecture using API-first principles and event-driven patterns (Kafka).
• Led enterprise API strategy including versioning, gateway management, authentication, and high-throughput optimization.
• Architected high-availability multi-region deployments, improving web and mobile uptime from 97% to 99.7%.
• Drove DevOps transformation across 4 product teams, increasing deployment frequency by 3x and reducing production incidents by 30%.
• Applied application security best practices including secure authentication, RBAC, and production hardening.
• Enhanced digital customer experience through architectural modernization and system reliability improvements.
• Stack: Huawei Cloud, Spring Boot, Kafka, Kubernetes, Elasticsearch, Jenkins.

Led DevOps operations for applications serving 2M+ customers, reducing delivery cycle time by 20%.

• Led enterprise chatbot and RPA-based automation project in banking domain, coordinating client stakeholders and internal engineering teams.
• Designed chatbot-to-RPA workflow integrations enabling secure automation across internal banking systems.
• Transitioned to centralized DevOps team supporting all enterprise applications.
• Built and maintained Jenkins CI/CD pipelines and provided L3 application support across multiple projects.
• Diagnosed and resolved build failures, dependency issues, and pipeline misconfigurations in collaboration with development teams.
• Managed large-scale artifact repositories (Artifactory with 9M+ objects) and ensured build stability and version integrity.
• Supported dynamic RedHat-based VM provisioning environments optimized for build workloads.
• Stack: Jenkins, Artifactory, RedHat, Java, Jira, RPA (UI Path), CI/CD.

Led 40+ engineers on high-traffic e-commerce, mobile, and CMS platforms processing 10M+ monthly visits.

• Migrated enterprise platforms to Azure DevOps and implemented 40+ CI/CD pipelines across multi-environment deployments.
• Architected high-traffic e-commerce platforms handling 10M+ monthly visits with scalable and resilient backend design.
• Designed secure payment gateway integrations and marketplace connectivity solutions for large-scale commerce systems.
• Implemented API-driven integrations with ERP, CRM, and third-party enterprise services.
• Delivered scalable digital B2B and B2C commerce architectures with performance-focused system design.
• Improved application performance and checkout reliability under peak traffic conditions.
• Stack: Azure DevOps, Kentico, MSSQL, Java, ASP.NET MVC, CMS.

Developed Android apps for enterprise clients; event-based and gamified experiences.

• Shipped 10+ native apps with Java/Kotlin, integrating APIs and analytics.
• Collaborated on design, development, and releases for production.

Built full automation for textile manufacturing plus Android terminal and server.

• Designed Android + backend for real-time tracking and digitization for 500+ device across production lines.
• Contributed to CepCard, a secure mobile payment/wallet system.