Google Cloud Platform

Ahmet Abdullah Okumus

+905********* ● Istanbul, Turkey ● *.**************@*****.*** ● LinkedIn

EXPERIENCE

Network and Platform Security Team Lead Sept 2023 - Present Sahibinden.com Istanbul, TR

Managing all network & security team and operations regarding firewalls, load balancers, Google Cloud Platform (GCP), Cloudflare, openshift, dns infrastructure and switches. Planning operational jobs in terms of agile methodology, as well as budgets/purchasing.

Principal Network and Platform Security Expert Jul 2022 - Sept 2023 Sahibinden.com Istanbul, TR

Managing all network & security operations regarding firewalls, load balancers, Google Cloud Platform (GCP), dns infrastructure and switches. Contribute to automation with scripting on load balancers and designing tag systems on firewalls. Key Accomplishments:

● Creating python script for comparing configs on all load balancers and reporting differences based on locations

● Istio migration from Netscaler devices service by service.

● Deep-dive troubleshooting between the integrations of website’s components and Load Balancers, leading team to solution

Security Technical Product Lead Jan 2021 - June 2022 Vodafone Turkey Istanbul, TR

● Designing of Vodafone Managed Security Services infrastructure, enhancement of existing security environments, budget management of MSS

● Working closely with presales, sales, sales development, marketing, client experience (CX), user experience (UX), Journey and IT solution departments to build innovative security products and offer the best solutions to our customers Security Services Expert (MSS)June 2016 - Dec 2020 Vodafone Turkey Istanbul, TR

● Designed firewall & load balancer topologies, leading installations/implementations/migrations. Also, giving postsale/presale support to teams regarding Network & Security devices.

● NetScaler Web Application Firewall setups based on OWASP-10

● Python script integration with NetScalers, implementations and controls on all NetScalers by script automation

● Managed VPN transformation from Cisco VPNC to Pulse Secure IT Security Specialist Oct 2013 - May 2016

Borsa Istanbul A.S Istanbul, TR

● Providing technical support for Firewalls (Checkpoint, Cisco ASA, Fortigate), Load Balancers (F5, NetScaler, Nginx)

● Migration of all websites from nginx to F5, and installation of F5 LTM-AAM-ASM features

● VPN setups on Checkpoint, Cisco ASA,Pulse Secure SSL VPN

● Planning and operating security infrastructure migration to new datacenter without any interruption NetScaler Load Balancer Specialist Oct 2011 - Sep 2013 Exclusive Network Turkey Istanbul, TR

Given Post-sales and Presales supports (POCs etc.) to over 60 customers about NetScaler’s features as Load balancing, content switching, web application firewall (WAF), geographic load balancing (GSLB), caching & compression, authentication & authorization, access gateway (SSL VPN module) etc. SKILLS

Firewall (Fortigate, Checkpoint, Palo Alto, Sophos, Cisco ASA, Firepower) Load Balancer/WAF (Citrix NetScaler, F5, Nginx) Python Scripting VPN (Pulse Secure, Fortigate, Checkpoint, Firepower ) Google Cloud Platform (GCP) DDoS (Arbor) IPS (Fortigate, Firepower) Forcepoint Tufin Vasco OTP Cisco ISE VmWare NSX XenServer EDUCATION

Istanbul Technical University Bachelor’s degree in Control Engineering GPA: 2.85/4.0 Oct 2006 - June 2011 CERTIFICATION

Certified Information Systems Security Professional (CISSP) Google Cloud - Professional Cloud Security Engineer (PCSE) Google Cloud - Professional Architect (PCA)

Fortinet NSE7, NSE4

Citrix Certified Expert – Networking (CCE - N)

Cisco CCNA & CCNA Sec

Check Point Certified Security Expert (CCSE)

COURSES

NSE 4 – FortiGate Security 6.4 (2020)

Citrix NetScaler Advanced Topics – Security, Management and Optimization (2019) Checkpoint R80.10 Management (2018)

Programming for Everybody – Python, Coursera University of Michigan (2017) VMware NSX: Install, Configure, Manage [V6.2] (2017) F5 Load balancer ASM/LTM (2015)

Cisco ASA Firewall SSL VPN (2014)

Juniper UAC (User Access Control) (2014)

Checkpoint Security Administrator (2013)

Citrix – NetScaler Administrator (2012)

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