Alpaslan Çetin

Principal Service Reliability Engineer at Turkcell

Türkiye

About

As a seasoned professional with over a decade of experience in technology and systems management, I currently hold the position of Specialist Site Reliability Engineer at Turkcell. With deep expertise in agile development, leadership communication, and cloud-based architecture, I contribute to our teams by bringing a diverse range of experiences, in alignment with our organization’s mission and culture. My primary focus is on optimizing business processes and ensuring the continuous availability of systems. In my role at Turkcell, I develop automation applications using various programming languages and enhance service management procedures. By leveraging business intelligence tools, I conduct evaluations to make processes more intelligent and perform trend analyses and reporting on databases using SQL queries. Additionally, our team plays a critical role in expanding the organization’s reach by onboarding new branches on a weekly basis. The skills and competencies I have gained through these responsibilities form the foundation of my professional expertise.

Experience

  • Turkcell (4 yrs 11 mos)
    • Principal Service Reliability Engineer
      Jun 2026 - Present · 2 mos

    • Associate Principal Master Expert Serv. Reliability Engineer
      Sep 2022 - Jun 2026 · 3 yrs 10 mos

      -Responsible for creating automation applications using .NET Core MVC, enhancing the efficiency of various processes and systems. -Creating scripts to automate tasks and enhance service management procedures. -Conducting assessments using multiple business intelligence tools to optimize and streamline business processes. -Running daily SQL queries in the database for purposes like trend analysis, reporting, troubleshooting, and batch processing. -Continuously deploying new branches or locations on a weekly basis to expand the organization's reach. -Managing critical infrastructure systems around the clock, ensuring their continuous operation and reliability. -Conducting in-depth analysis and investigation of middleware application issues by examining custom/error logs, monitoring, and even delving into Java, TCP, and core dumps for problem resolution. -Delivering evolving service management solutions as per Service Reliability Engineering (SRE) principles and Service Level Agreements (SLA). -Facilitating and coordinating collaboration between network, firewall, development, operating system, and database teams to ensure seamless inter-team communication. -Strategically planning server capacity and executing server migrations between data centers. Also, disseminating bulletins to all relevant personnel to keep them informed. -Actively participating in and contributing to international projects with various organizations, such as jazz, digicell, aselsan, and lifecell. -Involvement in compliance processes similar to the Sarbanes-Oxley Act (SOX) and participating in international audits to ensure regulatory adherence. -Handling incident responses, offering temporary and permanent solutions at both L1 and L2 support levels, and replicating or simulating issues to find resolutions. Tech Stack:PostgreSQL, Kafka, Grafana, Redis, Kong, Podman, Cassandra, Prometheus, DynaTrace, and ELK (Elasticsearch-Logstash-Kibana),.net Core,MVC,Azure

    • Master Expert Service Reliability Engineer
      Sep 2021 - Nov 2022 · 1 yr 3 mos

  • Yapı Kredi (7 yrs 4 mos)
    • Senior System Administrator
      Aug 2017 - Sep 2021 · 4 yrs 2 mos

      -System Documentation within the scope of ITIL and ISO 27001 -Oracle 10g, 11g and/or SqlServer Database Systems installation, maintenance, backup -Maintenance, performance tuning, query configuration on Windows/Linux systems -Oracle GoldenGate -24*7 High Availability, Disaster Recovery, Coding, -Scripting, Replication, Transport/Mirror/Availability -Unix (Solaris-IBM AIX), Linux (Oracle,Red Hat) -Web design, CSS, Bootstrap, Jquery, Angular JS, IOS & Android deployment -System Control Panel Design

    • System Administrator
      Jun 2014 - Aug 2017 · 3 yrs 3 mos

  • Intern at Başarsoft
    Jul 2012 - Aug 2012 · 2 mos