Rodolfo Nützmann
ronutz.com | Senior Technical Expert | Network Engineering & Cybersecurity
Since 2020
Since 2021
Since 2024
Certified Trainer
Since 2025
Rodolfo Nützmann (ronutz) is a
Full-time senior certified instructor
delivering official vendor training
through ATC Red Education.
Teaching globally to any time zone
In English & Brazilian Portuguese.
Countries where I typically deliver remote training in local time zones:
"It has been deeply rewarding to share experiences and deliver training to students from diverse cultures and backgrounds around the world, in their local time zones, across North America, Europe, Africa, Asia-Pacific, Brazil, and Latin America."
-- Rodolfo Nützmann
30+ YEARS OF PROFESSIONAL DEVELOPMENT
designing and delivering
TECHNICAL & OPERATIONAL TRAINING
Technical training built from real field experience
Since 1996, I have worked across network engineering, cybersecurity, application delivery, field support, consulting, troubleshooting, and technical enablement. Since 2020, I have focused primarily on global technical training delivery for enterprise technology vendors.
Specialist in Technical & Sales Enablement
Technology :: Products :: Operation & Maintenance
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Training development & Delivery
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Technical marketing collateral creation
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Knowledge Transfers, Workshops, Bootcamps
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Technology Challenge Labs and Use Case Demos
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Targeted and customized for each audience:
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end-customers
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partners eco-system
Full-time Senior Global Technical Instructor
since 2020
Authorized instructor for the following official vendor courses:
30+ YEARS OF FIELD SUPPORT EXPERIENCE
PREMIUM TECHNICAL SUPPORT
NETWORK ENGINEERING & SECURITY CONSULTING
CUSTOMER ADVOCACY
Network Performance, Resiliency, and Security Engineering
since 1996
Premium technical support & consulting engineer.
Customer advocate & satisfaction specialist.
Acting mainly on-site at multiple end-customers from diverse markets and sectors.
The one thing they all had in common: Mission-critical networks.
Routine activities
Solutions design, PoC, demonstrations, installs, assessments, documentation, upgrades, migrations, audits, troubleshooting, immediate crisis response and remediation during availability & security incidents, escalation management, problem ownership, knowledge transfer, operational training design and delivery, learning/upskilling, problem solving.
My mission is to help organizations make better strategic and technical decisions in network engineering, cybersecurity, and application delivery.
I bring decades of field experience to improve architectures, strenghten operations, and develop more capable technical teams.
Professional Trajectory
F5 DevCentral MVP for 3 Consecutive Years (2022 · 2023 · 2024)
The F5 DevCentral MVP award recognizes the most active and impactful technical contributors to the global F5 community.
Awarded annually by F5 Networks to a small, selective group of independent practitioners worldwide (not F5 employees).
CERTIFICATIONS
ACTIVE
F5 Accredited Sales, Technical, & Security Professional (since 2013)
F5 CA - Certified Administrator, BIG-IP (since 2015)
F5 CTS - Certified Technical Specialist - LTM, DNS, ASM, APM (since 2017)
F5 CSE - Certified Solutions Expert - Security & Cloud (since 2021)
Fortinet NSE 1/2/3/4/5/6 (since 2022)
Fortinet FCP - Certified Professional in Secure Networking
Fortinet FCP - Certified Professional in Security Operations
Netskope One Administrator (NOA, since 2024)
Netskope One Professional (NOP, since 2025)
Netskope One Architect (NOA, since 2026)
Extreme Networks Certified Professional
Extreme Switching (EXOS Campus LAN Switching & Routing) (ECP-Switching, since 2021)
EXPIRED
(main ones)
Palo Alto Networks
Certified Network Security Associate
(PCNSA, 2021-2023)
Certified Network Security Engineer
(CNSE 5.1, 2014-2016)
Accredited Sales Expert (ASE, 2014-2016, 2020-2022)
Accredited Configuration Engineer (CSE, 2014-2016)
CyberArk
Certified Sales Professional (CSP, 2020-2022)
Certified Pre-Sales Engineer (CPE, 2020-2022)
Certified Trustee (2020-2022)
Tenable
Tenable .SC & .IO Certified Pre-Sales
Engineer, Integrator, Architect
(2020-2022)
Corvil
Corvil Certified Administrator
(CCA, 2020)
Polycom
Video Endpoints: Sales & Technical Tracks
(RPEOS100 & RPEOT200, 2014-2015)
Extreme Networks
Certified Sales & Design Professional
(ECSP & ECDP, 2014-2015)
Avaya
Professional Sales Specialist:
Unified Communications (APSS-UC)
Small and Medium Enterprise Communications (APSS-SME)
(2013-2014)
Juniper Networks
Sales Associate & Specialist - Enterprise Networking
JNSA-EN & JNSS-EN (SRX & EX)
(2010 to 2012)
Enterasys Networks
Certified Internetworking Engineer for Infrastructure
(ECIE-C, 2007-2009)
Systems Engineer for Enterprise Routing, Switching, Wireless & Management
(ESE, 2007-2009)
Cisco Systems
Certified Network Administrator
(CCNA, 2000-2008)
Internetwork Troubleshooting
(CIT, 2003-2005)
Cabletron Systems & Enterasys Networks
Enterasys Systems Engineer, Internetworking Technologies (ESE, 2000-2002)
Certified Systems Engineer,
Internetworking Technologies (CSE, 1998-2002)
Certified Instructor (CCI, 1998-2002)
AT&T / Lucent / Commscope
Systimax Structured Cabling
System Engineer (1998-2000)
- Rodolfo Nützmann -
Technical Expert, Consultant, and Advisor
Network Engineering & Cybersecurity
Senior Global Technical Instructor
Professonial Feedback
Over two decades of near-perfect feedback from students, peers, and clients across four continents.
A selection of feedback gathered from LinkedIn recommendations, Google reviews here & here, Reviews.IO, and direct messages received over the years.
" There are few people in the networking industry who not only understand networking technologies, but actually 'feel them'. Rodolfo is one of these few blessed people. "
Luiz Eduardo
CTO Security, HPE Aruba Networking
Source: LinkedIn
" I recently completed an F5 training session with Mr. Rodolfo Nutzmann, and I must say he is an exceptional instructor. He has a great way of breaking down complex technical concepts into digestible details. I particularly appreciated how he balanced the theoretical instructions with real-world examples and provided valuable reference links for deeper learning. His pace is perfect for ensuring everyone follows along. Highly recommended! Much appreciated, Rod, and keep up the excellent work! "
Suresh Kumar Krishnan
F5 Training
Source: Google ★★★★★
" Training Facilitator (Rod Nutzman) is very knowledgeable and thorough on the topics being delivered. His instructional strategies effectively engage students, making learning a dynamic and enjoyable experience. I greatly appreciate his commitment to creating a positive and inclusive online classroom environment. Rod's dedication to professional development contributes to student's continuous growth, and this is commendable. Thank you, Rod. "
Alvin Serwelas
Verified Student
Source: Google ★★★★★
" Tive o prazer de trabalhar com o Nützmann na Westcon, atuando juntos em diversos projetos do fabricante F5. É muito raro ter a oportunidade de ter um colega de equipe como ele: extremamente colaborativo, muita experiência de mercado e com uma didática e generosidade ímpar para compartilhar seu profundo conhecimento técnico. Nützmann sempre tratou os clientes com empatia e simplicidade e destaca-se por sua capacidade de resolver problemas complexos e inesperados. "
Fabiana Conz Weiler
Sr. Customer Success Manager / Solutions Architect, Meta
Source: LinkedIn
" I loved the F5 Configuring BIG-IP Local Traffic Manager (LTM) course I took with Rodolfo Nützmann. The instructor is knowledgeable and has excellent teaching skills. I highly recommend it. "
Felipe Mafra
Google Local Guide
Source: Google ★★★★★
" Fui aluno do Professor Rodolfo no treinamento preparatório para o exame 201 F5 Big IP. Já havia realizado treinamentos para esse exame anteriormente, entretanto, as aulas do Rodolfo foram um divisor de águas em meu aprendizado de F5. "
Thiago Marins da Silva
Especialista em Redes
Source: LinkedIn
" I worked with Rodolfo for a couple of years while he was an engineer in Network1 and Westcon Brazil. Rodolfo always showed a unique set of technical skills and combined with his 'always available mode' was a perfect combination for the success. His tech abilities coupled with his ability to demonstrate the products differentiations make Rodolfo a great professional to any organization. "
Dan Peres
Mission-Critical Solutions,
F5
Source: LinkedIn
" Rodolfo is one of the major network experts that I had the pleasure to work with. Always ready to help and support with his great expert skills and very friendly. His deep knowledge of network solutions helped me more than once in the operation of UNIVALI's network. For me it's an honor to call him more than a Service Provider, but a real friend. "
Leonardo Luy Peixoto
CEO Secure IT
Source: LinkedIn
" Excelente instrutor, não apenas pela grande qualidade técnica, mas também pela excelência na didática e profissionalismo. "
Peterson Pereira
Enterprise Tech Support Analyst
Source: LinkedIn
" With excellent technical background and business knowledge, Rodolfo understands that the customer needs are the key factor in the project development. It is a great pleasure to work with a competent guy and I hope to have this opportunity again. "
Adriano Mazza
OT Business Development Manager,
Fortinet
Source: LinkedIn
" Rodolfo is a hard-working and result-oriented professional, getting along extremely well with his colleagues and partners, with an impeccable track of records. His technical background and result-oriented perspective makes him a true asset to any organization. "
Jose P. Leal Junior
Country Manager, Veeam Software
Source: LinkedIn
" Excelente didática e com alto nível de conhecimento técnico, principalmente em soluções da F5. "
Eduardo Ushiama
Information Security Consultant
Source: LinkedIn
" have known Rodolfo for over 12 years and have always been impressed with his technical abilities. He takes pride in the quality of his work and is always excited to learn something new. I highly recommend Rodolfo as a very skilled individual. "
Bernhard Behn
Principal Program Manager, Azure Edge + Platform @ Microsoft
Source: LinkedIn
" Trabalhei em parceria com o Rodolfo em um projeto onde precisávamos analisar o capacity do link de dados. Seu conhecimento sobre o assunto, aprofundamento das análises e qualidade dos resultados apresentados foram fundamentais para o sucesso do projeto. Excelente profissional! "
Andrea Ramos
Researcher, Inmetrics
Source: LinkedIn
" Rodolfo possesses excellent team building and inter-group working skills. At Riverstone, he co-built the knowledge base, including the processes to input and use it. Additionally, Rodolfo authored the initial docs in the KB, improving the overall efficiency of the TAC. "
Dave Potter
Sr. Solutions Architect, F5
Source: LinkedIn
" I do recommend Rodolfo. He worked as a Cisco engineer in account Serpro and was very successful in all his assignments. He is a very responsible guy, with a strong technical background, proactive, focused on results and helped the customer all the time. He communicated well both with the customer and the account team. "
Carlos Mont'Alverne
Service & Support Manager
Source: LinkedIn
" Existem instrutores e existe o Rodolfo. Participei de cursos ministrados por ele para certificações F5, sua didática é excelente e percebe-se claramente sua experiência prática, que é um grande diferencial. Recomendo muito! "
Luiz Marcelo F. S. Serique
Gerente, CAESB
Source: LinkedIn
" Fiz 3 treinamentos da F5 Networks com o Rodolfo (Administração BIG-IP LTM, iRules e Troubleshooting) e aprendi muito com ele. Excelente professor e profissional com excelente bagagem na preparação para certificações F5 e também em metodologia de ensino. Recomendo o trabalho do Rodolfo! "
Rodrigo Kowalski
Redes · Infra · Telecom
Source: LinkedIn
" Excelente instrutor! Tive prazer de participar da academia de F5 BigIP e apesar de nunca ter trabalhado e nem ter contato com a tecnologia, consegui tirar as 2 primeiras certificações de LTM, graças ao treinamento com o Rodolfo. Obrigado e até a próxima! "
Eduardo Mariano
Analista de Operações Telecom,
Itaú Unibanco
Source: LinkedIn
" I attended the Troubleshooting F5 Course by Rodolfo. Very intensive modules and chapters that were easily broken down for easier understanding by Rod. I could easily relate those examples, as I have experienced it firsthand as well. Overall, it has been some time since I have attended quality courses. "
XingHui LAI
Google Local Guide
Source: Google ★★★★★
" É com imensa alegria que compartilho minha experiência com o Professor Rodolfo Nützmann! Durante o período em que tive a honra de ser aluno do Curso de WAF, sua energia positiva e entusiasmo contagioso fizeram das vídeo aulas um verdadeiro lugar de aprendizado. Sua habilidade em transmitir conhecimentos de forma clara e envolvente foi essencial para meu desenvolvimento técnico e pessoal. Obrigado, Professor Nützmann! "
Augusto Batista de Paula
Cyber Security Analyst
Source: LinkedIn
" I always enjoyed working with Rodolfo because he combined a positive attitude, a zeal for taking care of his customers, and a great depth of knowledge about the technology that he was supporting and recommending. He would be an asset to anyone's team. "
João Paulo Felix
Board Advisor & AI/DeepTech Strategist
Source: LinkedIn
" Rodolfo is a skilled professional with solid knowledge in networking field, and I had the opportunity to work with him at Enterasys where I saw the great level challenges he was able to deal with. He is an excellent professional and person. "
Marcelo Fernandes
Solutions Consultant / Architect
Source: LinkedIn
" Trabalhamos juntos por 4 anos. Da experiência profissional marcam: confiabilidade; competência; bom relacionamento; alta capacidade de coordenação e implementação em projetos críticos; criatividade e precisão em demonstrações estratégicas; ótima didática em treinamentos técnicos e de marketing. Um dos mais capacitados e hábeis Systems Engineers que a Enterasys já teve. "
Durval Stendard Filho
Services Sales Specialist, HP
Source: LinkedIn
" Rodolfo is one of the smartest and focused professionals I've ever worked. Its differential is leadership and focus on complex projects that combined with his exceptional technical knowledge makes him a distinguished professional in the market. "
Paulo M. Sousa
Network Specialist,
Scala Data Centers
Source: LinkedIn
" Rodolfo é um excelente instrutor, que demonstra dedicação ao aprendizado dos alunos de seus treinamentos profissionais, aos quais oferece uma didática fácil e organizada. Apresenta alta capacidade técnica, aliada a experiência e domínio das tecnologias. Recomendadíssimo! "
Josan Neves
Security Infrastructure Analyst
Source: LinkedIn
" When I started working as a Professional Services Engineer at Enterasys, Rodolfo was my 'technical reference'. Rodolfo was a do-it-all kind of person, always ready to help you no matter when or how. "
Rodrigo Akira Hirooka
Developer Relations Regional Lead,
Source: LinkedIn
" Tive a oportunidade de trabalhar com o Rodolfo na implantação da Rede Metropolitana de Campinas. Nesse projeto, ele se mostrou um profissional criativo, dedicado, pró-ativo e com muito conhecimento em tecnologias de rede. Certamente é um profissional que faz a diferença em uma equipe de alta performance. "
Marcos V. Buzo
Network Engineer, CCIE #69084
Source: LinkedIn
" Rodolfo is a brilliant professional with excellent communication and relationship skills. These points, plus his technical knowledge, make him a very interesting candidate for many positions. "
David Kallas
Board Member;
Teacher at Insper & Albert Einstein
Source: LinkedIn
" Recomendo Rodolfo pelo perfil profissional, pela dedicação e comprometimento a suas atribuições na empresa e com os clientes. Rodolfo possui um ótimo conhecimento técnico que faz a diferença para quem realmente necessita de uma solução e desenvolvimento de projetos. "
Adilson Caputo
Network Engineer
Source: LinkedIn
" Rodolfo is a network expert who helped me with network appliance monitoring and capacity planning for Enterasys, Cisco, H3C and Linksys equipments. Very skilled, he quickly gave me all the answers I needed for my project. "
Oscar Nogueira Neto
Technology Consultant
Source: LinkedIn
" Rodolfo Nützmann is a great professional, he has excellent skills in Network Security Perimeter solutions like Load Balancing, Firewall, WAF, and so on. He was responsible for teaching me most of what I know about F5 solution. Also, he's a great person and teacher. "
Jorge Barone
Information Security Specialist,
Icatu Seguros
Source: LinkedIn
" Rodolfo was one of the most talented SEs of the Enterasys pre-sales group. Both his technical knowledge and his clear understanding of the customer needs were key to developing effective solutions for Enterasys customers. "
Igor Giangrossi
Sr. Director, Consulting Engineering,
Nokia
Source: LinkedIn
" Rodolfo foi um excelente instrutor do curso de equipamentos da Extreme Networks. Demonstrou ter o domínio completo da tecnologia e a didática necessária para passar o conhecimento para nossa equipe. Além disso, trabalhou na implementação da nossa rede metropolitana. "
Andrey Tavares
Analista de Infraestrutura,
HU-UNIVASF
Source: LinkedIn
" Nutzman é um profissional altamente capacitado e qualificado. Possui profundos conhecimentos em segurança. Diferenciado no mercado, digo isso porque ele não é do tipo 'tenta e testa'. Ele simplesmente entende o conceito de SEGURANÇA e aplica os conhecimentos dele na solução. Tivemos bons desafios juntos e ele como sempre se saiu muito bem! "
Edson Lemos
Information Security
Source: LinkedIn
" I hired Rodolfo as probationary and he quickly moved to FE at Cabletron and then to SE at Enterasys. This movement shows how competent he is. Rodolfo is a complete human being as professional as well as personally. His work power is brilliant, his mind is quick and smart and his heart is so kind. I strongly endorse Rodolfo as professional and as personality. "
Mario Pires
Account Executive, OL Tecnologia
Source: LinkedIn
" Rodolfo Nutzmann has an excellent technical background that he acquired on Enterasys Networks deploying complex environments specially those that require OSPF routing. He has international experience which he acquired when he worked for Riverstone. He did an excellent job presenting the advantages of Check Point solutions from a security perspective. Clever, dynamic, with auto-learning capability. "
Kristiane Cardoso de Araújo
Product Sales Specialist, Security
Source: LinkedIn
" Rodolfo is an excellent professional. He has deep technical knowledge and great execution skills. He works well with colleagues and has also natural leading skills. I can testimony that he developed a great job, working very professionally and achieving excellent results. "
Valdir Bignardi
President, VBN Participações
Source: LinkedIn
" Rodolfo did a tremendous job creating the Technical Library at Riverstone. The knowledge base he created became the central repository for all technical documentation, not only allowing the whole organization to easily find any technical document, but also introducing a culture of documenting everything to make it available to everyone. "
Igor Giangrossi
Sr. Director, Consulting Engineering,
Nokia
Source: LinkedIn
" I had the opportunity to get to know Rodolfo through the works and events of F5 Networks. Always very concerned with the client and how to give the best guidance to partners, today I see him highlighted as an Instructor, where he always seeks the best way to present the solution for the daily life of the Brazilian market. An excellent professional, always innovating. "
Fernando Camargo Filho
Consultant, F5
Source: LinkedIn
" Rodolfo is a great professional, we've worked together in several occasions and he was always super helpful and proactive. He is a very intelligent person with solid technical skills. I'm sure he's a valuable asset for any company. "
Eduardo Casseano
Customer Engineer, Google Cloud
Source: LinkedIn
" I had the pleasure of working with Rodolfo twice in the same company, but almost 10 years apart. Dedicated, customer-centric professional, has always demonstrated great technical knowledge and, above all, a great desire to learn and evolve. It's a pleasure to have him on the team! "
Rodrigo Larrabure
Director of Technology & Products,
CYLK
Source: LinkedIn
" Rodolfo is a very talented professional who I had the pleasure to work with. His vast knowledge on Networking helped me to speed up my training on Enterasys products when I started at Enterasys. I highly recommend Rodolfo as an excellent and talented professional. "
Claudio Neiva
Field Technology Director, CyberArk
Source: LinkedIn
" Realizei 4 treinamentos com esse cara. Foi de extrema importância seus conhecimentos e destreza frente às dúvidas e respostas que precisava, extremamente solícito e interessado nas dificuldades enfrentadas. Recomendo sem dúvidas, e graças aos seus esclarecimentos pude contornar algumas situações que já passei prestando serviço em cima do produto BIG-IP. "
Wagner Valério
Network Analyst, Sonda
Source: LinkedIn
" Ótimo profissional!!! Altamente capacitado e com profunda experiência em engenharia de redes e segurança. "
Maurício Nazário
Scrum Master, COBIT 5 Foundation
Source: LinkedIn
" I had a great pleasure to work with Rodolfo at Enterasys Networks. He has the technical and soft skills to resolve customer issues effectively and to the customer's satisfaction. I do recommend Rodolfo. "
Julianna Knauer
Network System Engineer, Aruba/HPE
Source: LinkedIn