# Mark Roeder

> Defensive Cyber Operations : Okta

Location: San Francisco, California, United States
Profile: https://flows.cv/markroeder

Specialties: SIEM, UNIX, LINUX, Virtualisation, Hyper-V, Citrix. Cyber defense in depth design, IP Networking. Security Systems analysis. OSS systems. Architecture and Design for Splunk (ES) platforms.

## Work Experience
### Director, Defensive Cyber Operations @ Okta
Jan 2026 – Present | San Francisco
Securing Okta Globally. People, Processes Passion. Building a scalable security minded team to support our mission.

### DCO Senior Manager @ Okta
Jan 2025 – Jan 2026 | San Francisco, California, United States
Detection and Response, Cyber Defense Operations.

### Snr Manager Identity Defense Operations @ Okta
Jan 2024 – Jan 2025 | San Francisco, California, United States

### Manager, Security Engineering @ Credit Karma
Jan 2021 – Jan 2024 | Oakland, California, United States
Security operations center. SOAR automation. Splunk Security Enterprise. People

### Snr Security Engineer @ Credit Karma
Jan 2019 – Jan 2021 | San Francisco, California

### Logging and Detection engineering Lead @ Symantec
Jan 2018 – Jan 2019 | Mountain View, California
SIEM engineering practice, running a team of 6 professionals in a challenging target rich environment.

### SIEM Principal @ DarkMatter LLC
Jan 2018 – Jan 2018 | United Arab Emirates
Managed Security Services ~confidential~

### Lead Security Architect @ PwC
Jan 2017 – Jan 2018

### Security Design Portfolio Manager @ Commonwealth Bank
Jan 2016 – Jan 2017 | Sydney CBD
SIEM, Splunk Security, Analytics, CIM, Focus on Design. Running a team of Splunk Security professionals.

### SIEM Principal Designer @ Commonwealth Bank
Jan 2014 – Jan 2016

### SIEM Designer (contract) @ Commonwealth Bank
Jan 2014 – Jan 2014 | Sydney, Australia
SIEM Designer responsible for onboarding customer data sources into Splunk ES SIEM solution implemented by the Data Protection Group within CBA.

### OSS Consultant @ BPV Solutions
Jan 2010 – Jan 2014 | nsn sydney
Windows Virtualisation Hyper-V , Citrix XENAPPS, Linux and Unix administration. OSS remediation. ESX implementation. Bespoke system problem resolution. Technical documentation.
Splunk Certified Architect.  Working with Nokia, NSN, Vodafone, Victoria Government

### OSS Consultant @ Spark Digital NZ
Jan 2010 – Jan 2010 | Sydney, Australia
CA eHealth, Solaris Unix administration, SNMP network monitoring. CBA managed service (network monitoring tools suite)

### Unix analyst @ Optus
Jan 2009 – Jan 2010
Developed comprehensive OSS platform on OVOu covering the Optus IT windows, unix (AIX lpars) and linux fleet. Bespoke granulated monitoring and automation.

### Snr Software Support @ EMC
Jan 2007 – Jan 2009
ECC Support, Oracle DB restore, Customer support (T2)

### Snr OSS Consultant @ Nokia Siemens Networks
Jan 2006 – Jan 2007 | North Ryde
OMU Openview Operations, NNM support. Unix. (Solaris, HPUX, Linux support).

### OSS Consultant @ Hewlett-Packard
Jan 2006 – Jan 2006
OVOu integrations consultant

### Technical specialist @ Optus
Jan 2001 – Jan 2006

### NMC engineer @ diAx gmbh
Jan 1999 – Jan 2001 | Zurich Switzerland

### Team Leader NMC @ MCI Worldcom
Jan 1997 – Jan 1999 | Frankfurt Am Main Area, Germany

### Team leader NMC international @ MCI Worldcom
Jan 1997 – Jan 1999

### Network Engineer @ Optus
Jan 1995 – Jan 1997 | Sydney, Australia
Domestic Telecommunications, Nortel DMS, Fujitsu SDH, Newbridge ATM 24x7 operations (NOC), novell netware. Windows NT.

### Snr technican @ State Rail Authority of New South Wales
Jan 1989 – Jan 1994
Apprentice - technican - Snr Technican in Railcorp. MD110 PABX telecommunications & PDH transmission


## Education
### Trade Certificate in Electronics
Sydney Institute


## Contact & Social
- LinkedIn: https://linkedin.com/in/mark-roeder-5702591

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Source: https://flows.cv/markroeder
JSON Resume: https://flows.cv/markroeder/resume.json
Last updated: 2026-04-13