The instructor
Rodolfo Nützmann
Senior Technical Instructor
Network and security training delivered by a practitioner who has spent his career on the implementation side, not just the slides. Based in São Paulo, teaching globally, in Portuguese and English.
What I do now
I deliver official, certified instructor-led training across four security and networking platforms. The work is hands-on and lab-driven: the goal is always that people leave able to do the thing, not just describe it. I have been an authorized instructor since 1996, and training and technical enablement have been part of my work since the late 1990s.
- Based inSão Paulo, Brazil
- TeachesVirtual and on-site instructor-led training, globally
- LanguagesPortuguese (native), English (fluent)
Four platforms, taught in depth
Being certified across four vendors means I can teach each one properly and compare them honestly. These are the platforms I am currently authorized to deliver official training for.
- F5BIG-IP across the full instructor-led curriculum: LTM, DNS, Advanced WAF (ASM), APM, AFM, SSL Orchestrator, automation, and troubleshooting.
- FortinetFortinet certified training, including the FCP track.
- Extreme NetworksExtreme Networks switching, SD-WAN, and API and automation tracks, across installation, configuration, management, and troubleshooting.
- NetskopeNetskope security cloud instructor-led training.
Recognition
Recognized as an F5 DevCentral MVP for three consecutive years, in 2022, 2023, and 2024, for contributions to the F5 technical community.
The path here
My career began on the vendor and implementation side in 1996, and stayed there for two decades before I focused fully on training. That implementation background is the reason the training lands: I have built, broken, and fixed these systems in production.
- 1996 – 2000Cabletron Systems · São PauloNetwork engineer and certified instructor. Non-Ethernet and Ethernet networks, campus networks, IP routing.
- 2000 – 2002Riverstone Networks · Santa Clara, CaliforniaProduct support engineer and knowledge-base coordinator in California. Gigabit Ethernet, metropolitan area networks, IP routing, BGP. Third-level escalation, customer scenario recreation, and regression testing.
- 2003 – 2004Cisco Systems · BrasíliaNetwork consulting engineer, acting as the single point of contact for key customers including SERPRO and Correios. Escalation and customer-satisfaction management.
- 2005 – 2007Enterasys Networks · São PauloNetwork engineer and instructor. Enterprise networks, IP routing, user access control and NAC, IDS and IPS.
- 2009 – 2010Juniper Networks · São PauloChannel support engineer and instructor for enterprise switches and firewalls. Technical sales enablement and Junos-SRX operations training.
- 2015 – 2019F5 Networks · channel (Westcon, ScanSource)Channel-facing sales and pre-sales engineering for F5, providing technical enablement, proof-of-concept execution, and partner training across distribution.
- 2020 – presentRed EducationAuthorized training instructor delivering official certified courses across F5, Fortinet, Extreme Networks, and Netskope to organizations worldwide.
Where it started
Before the formal career, there was the curiosity. Through the early 1990s I was importing and assembling computers, running and using bulletin board systems, and working across DOS, Unix, Linux, Netware, early Ethernet, X.25, and dial-up internet. By 1995 that hands-on work had become a first formal role building an electronic-data-interchange system. The thread from then to now is the same: take something genuinely complex and make it work, then make it make sense to someone else.
How I teach
I chose to specialize in training because it combines deep technical knowledge with the part of the work I enjoy most: explaining complex concepts simply. The strongest sessions connect each concept to the job the learner actually has to do, so the content has somewhere to land. Real-world examples, real labs, and a focus on understanding over memorization.
Start with the concepts
The Learn section explains the ideas behind the tools, and the tools let you work with them directly, all in your browser.