Mustafa Serdar KIZMAZ
Senior Linux System Admin
Ankara
Summary
Professional with strong background in Linux system administration, adept at managing and optimizing complex IT infrastructures. Known for collaborative efforts and ability to adapt to changing needs, ensuring seamless operations and achieving targeted results. Expertise in system performance tuning, network configuration, and scripting, coupled with proactive mindset and problem-solving skills highly valued by employers.
Overview
10
10
years of professional experience
9
9
years of post-secondary education
Work History
Senior Linux System Administrator
Gantek Teknoloji Bilişim Çözümleri A.Ş.
04.2022 - 11.2024
- Enhanced server performance by optimizing Linux system configurations and conducting regular maintenance.
- Evaluated and recommended emerging technologies to stay current with industry best practices, maintaining a competitive edge.
- Provided technical guidance to junior administrators, fostering a supportive learning environment for skill development.
- Red Hat OpenStack Platform, TurkTelecom's cloud
deploy, scale and manage - Ceph Storage installation and ensuring its operability (TurkTelecom)
Installing - Openstack Director and ensuring its operability
(TurkTelecom) - Installation and configuration of Red Hat Satellite.
- Configuration of the Rhev Manager system, bug x and problems
elimination of
Red Hat enterprise security and patch management
(TurkTelecom) - Fraud application (FRMS) System running under control rollback strategy development and the development of a rollback strategy
- Maintained high availability of web applications by configuring and managing Apache HTTP Server and Nginx reverse proxy servers.
- Increased infrastructure scalability with the implementation of virtualization technologies such as VMware, KVM, Proxmox and Ovirt
- Collaborated with developers to troubleshoot application issues that stemmed from underlying system problems.
- Improved overall system stability with thorough testing of software patches before deployment on production environments.
- Analyzed complex project server issues and worked on large enterprise and business-critical applications.
Senior Linux Administrator
Havelsan/Ehsim
11.2021 - 04.2022
- Installed system-wide hardware components, confirming interoperation and compatibility with Linux-based software distros.
- Interacted directly with users to diagnose and correct major system issues and address concerns.
- Created and serviced administrator and user accounts on Linux-based systems, managing deployments.
- Developed organization-wide administration policies to encourage continuity across multiple systems and facilities.
- Researched and recommended new technologies and strategies for improving system performance.
- Championed the adoption of open-source tools and technologies, reducing licensing costs and fostering a culture of innovation within the organization.
- Managed backup and disaster recovery through strict data control and retention policies, personally handling recovery tasks when issues arose.
- Tuned system performance to optimize efficacy of new and existing hardware components.
- Implemented automation tools to streamline routine tasks, freeing up time for higher-level strategic initiatives.
- Stability of the environment in which the Havelsan Fingerprint Project is installed
operability - Monitoring ceph services and logs on Ceph Storage installed system
control and maintenance - Bare Metal, Virtaul Machine and
Management and Maintenance of Containers systems - Managed virtualization platforms, optimizing resource allocation to maximize system performance across diverse workloads.
- Maintained flexible schedule and responded to after-hours and weekend emergencies.
Senior Linux System Administrator
NATIONAL ACADEMIC NETWORK AND INFORMATION TUBİTAK
05.2015 - 11.2021
- Enhanced server performance by optimizing Linux system configurations and conducting regular maintenance.
- Streamlined workflow for the IT team by automating routine tasks using shell scripting.
- Facilitated successful migrations from legacy systems to modern Linux-based platforms, minimizing disruption to business operations.
- Improved overall system stability with thorough testing of software patches before deployment on production environments.
- Reduced downtime by proactively identifying and resolving potential issues through monitoring tools and log analysis.
- Diagnosed and resolved hardware and software issues.
- Implemented, developed and tested installation and update of file servers, print servers and application servers.
- Integration of Pardus Operating System to clients, integration of 3rd party software such as printer, mail client etc.
- Infrastructure analysis in institutions, As a result of the analysis
preparation and integration of servers and their operability - Pardus Migration Team leadership
- Providing consultancy services to institutions
- Standardized server provisioning processes using configuration management tools like Ansible or Saltstack
- Provided technical guidance to junior administrators, fostering a supportive learning environment for skill development.
Education
Management Information Systems Program Objective - Management Information Systems Program Objective
Anadolu University
Eskişehir, Turkey 10.2021 - Current
Computer And Programming Associate Degree - Information Technology
Suleyman Demirel University
Isparta, Turkey 10.2007 - 11.2009
FACULTY OF BUSINESS ADMINISTRATION -
Anadolu University
Eskişehir, Turkey 09.2007 - 10.2011
Skills
Linux server management
System performance tuning
Performance analysis
Project management
Server improvements
Linux administration
Accomplishments
- Documented and resolved Openshift ingress network which led to
- Achieved Oracle Database recovery through effectively helping with.
Timeline
Senior Linux System Administrator
Gantek Teknoloji Bilişim Çözümleri A.Ş.
04.2022 - 11.2024
Senior Linux Administrator
Havelsan/Ehsim
11.2021 - 04.2022
Management Information Systems Program Objective - Management Information Systems Program Objective
Anadolu University
10.2021 - Current
Senior Linux System Administrator
NATIONAL ACADEMIC NETWORK AND INFORMATION TUBİTAK
05.2015 - 11.2021
Computer And Programming Associate Degree - Information Technology
Suleyman Demirel University
10.2007 - 11.2009
FACULTY OF BUSINESS ADMINISTRATION -
Anadolu University
09.2007 - 10.2011
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