Certification
- Sun Certified System Administrator
- Sun Certified Network Administrator
- Oracle Database SQL Certified Expert
- Oracle Certified Associate
- Microsoft Certified System Administrator
- Microsoft Certified System Engineer
- Microsoft Certified Database Administrator
Skills
Operating Systems and Databases
- Operating Systems:Linux (1997), Solaris (1997), Tru64 (2007), Windows (1994-2006)
- Databases:MySQL 3.x/4.x/5.x, Oracle 8i/9i/10g (RAC, Replication), PostgreSQL 8.x, Microsoft SQL Server 2000 (not after 2005)
- Networking:Extensive knowledge on TCP/IP and ethernet based protocols. eg: HTTP, SIP, FTP, SMTP, IPsec, IMAP, POP3, RADIUS, ARP/RARP, DHCP, BOOTP
Services
- Web Servers:Apache, Microsoft IIS
- Mail Servers:Postfix, sendmail, exim, qmail, Mailsite, SPF
- Mail Scanners:Spamassassin, Mailscanner
- File Services:NFS, Samba (CIFS/SMB), proftpd, vsftpd, DFS, AutoFS
- Print Servers:CUPS, lprNG
- Proxy Servers:Squid, Microsoft ISA Server 2000/2004
- Firewall – VPN:iptables, Checkpoint NG (not after 2004), openvpn, ipsec, ipf (basic)
- LDAP Servers:openLDAP, Iplanet Directory Server
- Name Services:NIS
- DNS Servers:BIND 4.X/8.X/9.X, powerdns
- Monitoring:Nagios, MRTG, cacti, RRDTool
- Versioning:RCS, CVS, Subversion, Git
- IDS:Nessus, Snort, nmap
- Virtualization:linux-vserver, VMWare Server, Xen (basic), OpenVZ, KVM
- VOIP Systems:Alcatel-Lucent 5020 Carrier Grade Softswitches, ACME Packet Session Border Controller (Beginner)
- RAID and volume systems:Solaris Volume Manager, Linux Logical Volume Manager (LVM), Linux dm-raid/MD, Microsoft Dynamic Disks, Sun Storedge, Veritas volume manager, HP MSA disk arrays, Tru64 LSM
- Network Devices:Cisco switch and routers (Basic)
- Others:Sun Cluster, TruCluster, Linux Virtual Server (LVS), IP and I/O multipathing, PAM, GFS, heartbeat, Django, Turbogears2, kannel (high performance sms/wap gateway), protocol tracing, extensive knowledge on open source software, performance tuning using kernel internals, database engine internals and tcp/ip parameters,
Programming Environments
- Programming Languages:Java, PHP, C, Phyton, Perl, Delphi, Pascal. Also familiar with C++, Ruby, x86 Assembly, Visual Basic
- Programming Tools:GCC, Sun Compiler Collection, Visual Studio (6.0/97), Eclipse, Vim, Emacs, gdb, pstack, ladebug, Borland Jbuilder (not after 2000)
Work Experience
Alcatel-Lucent – Network Design Integration \: Operation
Jul, 2009 – now
In Alcatel-Lucent era acting as THE wildcard engineer, provide hardcore UNIX expertise, DBA profession, network troubleshooting and programming
Decision maker for platform and topology designs
- Create, provide self management scripts and tune MySQL server for AVEA (GSM operator) in order to store +100 million rows monthly, 1.5TB foreseen yearly with purging old data
- Wrote Python based parametric application for detailed network inventory collection (All types of UNIX flavors, network devices, signalling devices) using ssh/telnet and create CSV/HTML reports
- Responsible for design of hardware/software/network, implementation and tuning of 20 TB PostgreSQL database + 100TB file storage + 30 servers for Turk Telekom network management system with complete deployment and monitoring solutions
- Responsible for interviewing and proposing an SAN (Storage Area Network) solution as well as designing platform and network that will be connected to it
Alcatel-Lucent – NGN International L3 Support Engineer (R\:D)
Jan, 2007 – Jul, 2009
- Kernel and network stack level operating system tuning, troubleshooting and kernel crash analyses for Linux, Solaris, Tru64 based systems (More than 300 IPVS, Sun Cluster and TruCluster worldwide)
- Volume management of clusters using Veritas VxVM, SVM, Advfs, LSM, LVM
- Create 4 node Linux GFS + IPVS cluster with multimaster MySQL replication, OpenVZ virtualization and Nagios + Cacti with management scripts for Mobile Number Portability Project
- Create and proposed Nagios + Cacti based monitoring solution for situations that need more than SNMP ever can
- Troubleshooting and performance tuning for single and replicated MySQL 5.1 clusters (not NDB), Oracle 8i/9i/10g with RAC and multimaster replication
- Network trace analyses to find RFC compliancy and interoperability issues in SIP, HTTP, SOAP, MEGACO, RTP and RADIUS protocols
- Writing ad-hoc tools for specific customer needs
- Instruct internal courses for juniors
- 7/24 on-call weekly rotation for customers like British Telecom, Wind, Telenor, T-Sytems, Bezeq, Telstra, Telmex, Copaco, France Telecom, Orange, Vodafone, AT:T, Turk Telekom
Parkyeri A.S – Support Group Supervisor
Apr, 2006 – Jan, 2007
In this term, Parkyeri has been selected as the fastest growing internet company for the last 5 years in Turkey
- Leading and performance evaluation of support group, production planning, support and coding for products, installation management and performance tuning of over 130 Linux/Solaris servers
- As a unique feature of Parkyeri, a team leader is chosen by the employee votes and can hold the position for at most 6 months
Kuleli Military High School – IS Officer
Jul,2005 – Apr,2006
Kuleli is the oldest and most respected military high school in Turkey and I completed my compulsory service here
- Central management of over 500 desktop pc, 12 Windows 2000/2003 Servers with 4 domains, 160 printers
- Coding of an online education portal using PHP and commanding an armed squad
Parkyeri A.S – System Administrator
Jan, 2004 – Apr,2005
Parkyeri is the leading software development company with its unique products and work style. The product portfolio includes value added services for Turkcell, e-commerce sites and Web 2.0 based sites. The company is unique in Turkey in terms of aggressively embracing and promoting Free Software
- Supporting and coding for products, installation, management and performance tuning of over 100 Linux/Solaris servers spread over 2 offices, 3 ISP, 2 GSM operators (Turkcell (Over 30 million subscribers), Life-Ukraine), and Genpa(Mobile phone seller giant in Turkey)
- Implemented monitoring and performance visualization system by checking 280 nodex using Nagios and Cacti with hand written tools (Alerts with e-mail and SMS)
- Manage services that include highly utilized sms servers (millions of SMS per day), e-commerce services, mail servers supporting user customizable server side spam filters (Exim, Postfix, Horde), web (Apache-PHP, Squid, Pound), dns (BIND), development and application servers (Subversion, Tomcat, JBoss
- Management of Linux based diskless client network (25 clients and 4 terminal servers), multimaster corporate file system replication (unison)
- Security checking via Nessus, nmap and snort
- Iptables and shorewall configurations of firewals
Executrain Education Services – Freelance Instructor
Sept, 2003
Instructing Windows 2000 Server and Active Directory course for a media group’s system administrators.
BNET (Borusan Telekom) – System Administrator
Mar, 2003 – Aug, 2003
BNET is one of the most important players among ISP
- Support for ISP services (apache, IIS, bind, sendmail, Mailsite), management installation and performance tuning of both ISP and customer servers
- DBA of MySQL, MSSQL, Oracle systems
- Firewall management (iptables, Checkpoint)
Freelance – System Administrator
Nov, 2001 – Mar, 2003
- Installation and troubleshooting of various services, mainly LAMP and e-mail.
- Writin PHP based small sites
Koc.net – Unix System Administrator
Sep, 2000 – Oct, 2001
Koc.net is a huge ISP that targets commercial customers
- Support for ISP services (apache,qmail,bind,irc), installation, management, performance tuning for over 70 Solaris/Linux servers
- DBA for some Oracle and MySQL servers
IDG – Freelance Writer
2001
Freelance technical writer for several issues of PCWorld and ComputerWorld magazines.
Marmara U. Dept. of Computer Engineering Student/Research Assistant
Nov, 1996 – Jun 2000
Instructing core CSE courses, management of faculty network, ~10 servers (Solaris 2.4/2.5.1, Linux (1.3), Windows NT4/2000 domain, faculty mail (sendmail/iPlanet) and web servers (apache/iPlanet)) and computer labs consisting ~150 pc.
Courses Given
Introduction to TCP/IP
Alcatel-Lucent – Sept, 2007
Introduction to Linux
Alcatel-Lucent – May, 2007
Microsoft Windows 2000 Server and Active Directory
Executrain Education Svc. – Sept, 2003
Introduction to Solaris Operating Environment
Koc.net – May, 2001
Marmara U. Dept. of Computer Engineering
July,1997 – June, 2000
Algorithms (Pascal)
C Programming Language (C)
Computer Networks (Java)
Computer Organization I (x86 Assembly)
Data Communications (Java)
Information Systems Analysis : Design (Java)
Open Systems Networking (Java)
Operating Systems I : II (C – C++)
Principles of Programming Languages (Java)
Visual Basic Certificate Course (2 Terms)
Courses Taken
- Total Quality Management – Marmara U. Faculty of Engineering 1999
- SA-400 Solaris Performance Tuning – KocSistem 2000
- Korn Shell Programming – KocBryce 2001
Education
- B.Sc. Computer Engineering – Marmara University June, 1999 Thesis: Distributed Collaborated Project Management Tool with JAVA-RMI
Organizations
- Free Software Foundation
Seminars
- Licenses, Patents, Free Software and Commerce Marmara U. Computer Engineering, Nov. 2006
- Licenses, Patents, Free Software and Commerce Bilgi U. Computer Science, Dec. 2006
- Licenses, Patents, Free Software and Commerce Bogazici U. Computer Engineering, Dec. 2006
- World of VOIP Marmara U. Computer Engineering, Apr. 2009
- Linux in Enterprise Marmara U. Computer Engineering, May. 2009
Personal
- Date of Birth:November 22, 1977 Istanbul/Turkey
- Marital Status:Married, with a child
- Driving License:B
Prepared with
Automaticaly generated from LaTeX source
