mahmut zan
Lead System Engineer at Token Financial Technologies- Claim this Profile
Click to upgrade to our gold package
for the full feature experience.
Topline Score
Bio
Credentials
-
Registered Scrum Master™
Agile Education by Scrum Inc.™Mar, 2023- Nov, 2024
Experience
-
Token Finansal Teknolojiler
-
Türkiye
-
Financial Services
-
100 - 200 Employee
-
Lead System Engineer
-
Oct 2020 - Present
-Designing the Cloud based Infra for EU region projects.-Building the system on AWS.-Designing the system on cloud compliant with PCI-DSS.-Integration of the system with Banks and GSM/ISP providers.-Logging, Monitoring, Networking on cloud.
-
-
R&D Senior System Specialist
-
Mar 2020 - Oct 2020
-Building the Infrastructure part of payment projects.-Designing the system compliant with PCI-DSS.-Preparing the ITIL compliant processes.-Leading the audits and preaudits in the company.
-
-
-
Arçelik Global
-
Türkiye
-
Manufacturing
-
700 & Above Employee
-
R&D Senior Specialist
-
Apr 2018 - Mar 2020
• Operating the system, network, security and compliance part of old projects.• Build Systems on AWS for Arçelik’s new value-added services.• Administration of AWS platform for different project groups.• Deploying and configuring monitoring services like Zabbix• Managing logging mechanisms like cloudtrail and cloudwatch• Designing networks and subnets in VPCs.• Preparing Security Rules for services.• Analyzing usage and needs of systems and creating cost optimisation reports.• Applying cost optimisation after being approved by the management. Show less
-
-
R&D Expert Engineer
-
Apr 2015 - Apr 2018
• Preparing the procedures for PCI-DSS, ISO 27001, ISO 22301 and ISO 20000• Getting the whole system compatible with these certifications (PCI-DSS and ISOs)• Operate the system according to new procedures for ISOs and PCI-DSS• Responsible for regulatory framework related to IT processes (ITIL, GIB etc.)• Responsible for the Audits and Risk Management• Maintaining Security scans with Nessus, patching, preparing the system for Pentest and ASV scans, dealing with the scan reports• Planning and doing the disaster recovery tests and running the system on DRC 1 day in a year.• Updating GSM topology compliant with the auto-switch to DR site when primary DC is unavailable• Updating alerting mechanism and correlation rules compliant with the procedures Show less
-
-
R&D Engineer
-
Mar 2013 - Apr 2015
System Management: • Responsible for designing and implementing of high available and high scalable system infrastructure for payment and mobile device management systems (TSM and TMS) designed for a million POS devices• Designing and managing disaster recovery system for payment (TSM) system• Designing a fully redundant Network/ISP/GSM topology between 2 locations (IPSLA)• MPSL and IPSec connections with banks and meal ticketing companies• Managing Firewall, Loadbalancer, DDOS and other security devices • Administration of Linux (Ubuntu) Servers, middleware platforms (Nginx, Apache, Tomcat, uWSGI, Supervisor, etc.)• Deploying and configuring monitoring, alerting and logging systems (Zabbix, Cacti, Grafana, Qradar, Graylog)• Tuning of system performance to ensure that systems will run reliably and be highly available in a 24/7 production environment. • Managing Virtualization systems and backup mechanisms (Vmware and Netbackup) Software Development:• Developing C/C++ based socket application on ARM-based Linux OS for POS devices to communicate with TMS services• Developing and maintaining Django web services that manage and update those Beko POS devices Show less
-
-
-
TÜBİTAK
-
Research Services
-
700 & Above Employee
-
Linux Developer
-
Jan 2013 - Mar 2013
My job was Linux Developer in Tubitak Ulakbim in the Pardus project which is Turkey's local Operating System based on Debian distribution. Pardus is supported by the government and replaced with Windows OS in some ministries. In this short term, I was responsible for developing a backups mechanism which is daily backs up thousands of remote servers to the central data centre. And I have build the first complete Turkish language pack for Libre Office as deb package. My job was Linux Developer in Tubitak Ulakbim in the Pardus project which is Turkey's local Operating System based on Debian distribution. Pardus is supported by the government and replaced with Windows OS in some ministries. In this short term, I was responsible for developing a backups mechanism which is daily backs up thousands of remote servers to the central data centre. And I have build the first complete Turkish language pack for Libre Office as deb package.
-
-
-
Cybersoft
-
Türkiye
-
IT Services and IT Consulting
-
100 - 200 Employee
-
System Engineer
-
Sep 2009 - Dec 2011
• Participated in the system administration of The Tax Office Automation Project of Revenue Administration of Turkey (VEDOP), one of the largest e-Government projects in Turkey • Administration of Unix/Linux systems (Solaris, CentOS) • Solaris security patches and OS upgrade as per release plan. • Administration of middleware tools such as Apache, Tomcat, GlassFish application server • Administration of monitoring tools such as Nagios. • Monitors systems activities and services, manage file system, CPU, Memory Usage. Take required necessary actions if required. • Configure and maintain system logs, Analyzing system and application logs, and identifying potential issues with Unix (Solaris) systems • Working closely with software development teams for troubleshooting the problems/bugs • Develop (as required) customized scripts/procedures for routine administration tasks including but not limited to backup/restore, shutdown, and start-up • Participate in the 24x7 on-call rotation. Show less
-
-
Education
-
2003 - 2009
Dokuz Eylül Üniversitesi
Mühendislik Fakültesi, Bilgisayar Mühendisliği -
1999 - 2003
Kabataş Erkek Lisesi
Community
