DENOG17

Alexander began his "network path" at Deutsche Telekom in 2015, where he quickly took responsibility for end-user quality assurance and network benchmarking. His core work focused on building automated systems that simulate real user interactions with public OTT services, analyzing behavior within the browser and across the network. During this time, he developed monitoring solutions that provided ISPs with deep insights into end-user perception of various OTT platforms. After graduating with his Master's in Computer Engineering in 2018, he co-founded AVEQ with former Deutsche Telekom colleagues. His mission is to empower ISPs to understand the true user experience and deliver excellent service quality.

I am a network professional with two decades of experience in designing, deploying, and optimizing scalable network infrastructures across Layers 2-7. My career has focused on serving global accounts in the telecommunications and enterprise sectors, with a strong emphasis on building scalable, high-performance networking architectures, including roles at Cisco, F5, VMware and Nokia.

Outside of technology, I am passionate about endurance sports—especially long-distance running

Anton Elita is a Technical Solution Architect at Juniper Networks, specializing in automation and routing, with over 20 years of experience in the networking industry.

Network Architect at i3D.net, founder Stichting EventInfra, members of the board Stichting Bitlair (Hackerspace Amersfoort)

Network Engineer

Infrastructure Engineer spanning from Layer 0 to 8. Mostly Linux Server Administration with SRE/DevOps etc.)

I have been heading Telstra's Global Internet strategy since 2018. I have been a board member of AMS-IX since 2019 and currently act as chairman.

Christian is head of consulting at WDZ GmbH, a subsidary of Stadtwerke Wolfsburg AG and specialized in network planing, architecture and automation.

Christian is a BNG protocol developer and Professional Services Engineer at RtBrick, with a focus on PPPoE/L2TP, DHCP, RADIUS, and related access technologies. He began his career at Deutsche Telekom AG in the Access/BNG domain and later worked at Juniper Networks.

Christian is a strong advocate for open-source software and the author of several widely used projects, including the BNG Blaster, Python libraries like PyRAD and PyANCP, or the Juniper JetEZ SDK. He is also an active member of the DENOG community, regularly contributing insights and tools to support the broader networking ecosystem.

equi (he/him, David is fine too) is an FRRouting maintainer since back when it was still called Quagga, does things at the IETF, and very rarely submits Linux kernel networking patches. Sometimes (between christmas and new year's) he's even part of running an actual network with his CCC Internetmanufaktur friends. You can find him on Mastodon at @equinox@chaos.social.

Dr. Gerhard Stein is Lead Research Engineer at FLEXOPTIX, in charge of ensuring that innovative and amazing prototypes can make it into the market.

Back in the 1990s, when he was still living in Mexico, he wrote small programs and assembled computers and network systems for customers. After his arrival in Germany, he began studying mechanical and process engineering at the TU Darmstadt, continued this at the Ruhr University Bochum, specialising computational engineering and received his doctorate in the field of simulation technology.

Emre Cinar is a Junior Automation Sales Engineer for IP Networks at Nokia, supporting network automation sales activities across the European market.
He began his career at Nokia Germany through a dual study program and joined the company full-time at the end of 2024 as part of the Network Services Platform (NSP) Network Automation team.
Based in Stuttgart, Germany, Emre holds a Bachelor of Science in Business Information Systems from the Cooperative State University Baden-Württemberg Stuttgart (DHBW).

Anything with IP networking, basically. Plus automation and some software development.

Gordon has been part of the networking community ever since he started working, and until recently, was working as a network operator. Recently, he joined Nokia as a Consulting Systems Engineer focusing on data center networks. In his free time, he volunteers in the network teams of conferences and camps and is one of the maintainers of Containerlab,

• Nerd
• Freelance IT-Consultant with more than 25 years work experience
• Started with Linux when it was shipped on 35 3.5" floppy disks
• DNS since 2000
• Switching / Routing since 2002
• IPv6 since 2007

Software Engineer doing too many different things over too many years. Doing video CDNs with golang for 6 years and loving it! ❤️

I'm a software developer with a special focus on high-performance networking and implementation of networking protocols. I'm part of the Hetzner Cloud team for software defined networks.

I do fun stuff with the Linux kernel, especially with eBPF and XDP.

Solutions Architect at Xantaro

Mathias Handsche is an expert in IT security and network infrastructure with a strong focus on NIS2 compliance, KRITIS requirements, and ISO 27001 certification—particularly in the telecommunications sector. As the Managing Director of nGENn GmbH, he supports telecom operators and internet service providers in implementing security measures, building sustainable ISMS structures, and integrating regulatory compliance into day-to-day operations.

He is an active ISO/IEC 27001:2022 and ISO 22301:2019 lead auditor, regularly auditing organizations in critical infrastructure and telecommunications environments. His work focuses on translating regulatory requirements into lean, actionable processes that align with operational priorities.

Mathias is also an active member of the German national standards committee (DIN) contributing to the development of ISO/IEC 27001, bringing practical field experience into the evolution of international information security standards.

Mathis Bramkamp ist Consulting Systemes Engineer mit einem Fokus auf Netwerkautomatisierung und -programmierbarkeit. Er hat zehn Jahre Erfahrung in der Informations- und Kommunikationstechnik in verschiedenen Rollen bei Alcatel-Lucent und Nokia. In seiner aktuellen Rolle unterstützt Mathis die regionalen Sales-Teams rund um den gesamten Bereich der IP-Produkten von Nokia, inklusive SDN/NFV und Rechenzentren. Mathis hat seinen Master of Science von der Brunel University in London erhalten.

Matthias is a bare metal freak and has been doing data center related stuff for 25 years now. He started early in his life with software development and spent a lot of time developing software for Unix/Linux system administrators to make their life easier. Some years ago he founded together with his team UhuruTec in order to bring Open-Source based cloud-platforms to customers.

Maximilian (Max) Wilhelm is a Holistic Network Software & Automation Evangelist, trying to bring software engineering methods to network orchestration, and helping to overcome the vendor lock-in.

Starting off with Linux and Open Source in the early 2000s, he developed a weakness for networking, IPv6 and routing which lead to him being an avid Open Source enthusiast ever since. As a result he is a co-founder, maintainer, and contributor of Bio-Routing and ifupdown-ng, and a regular speaker at Open Source and networking conferences. Max also takes part in the organization of the Free and Open Source Software Conference (FrOSCon) and founded the FrOSCon Network Track.

His second calling is acting as the lead architect behind the widely automated Freifunk Hochstift community network where he got his hands dirty with ifupdown2 as well as ifupdown-ng, VXLAN, Linux VRFs, BGP and OSPF, infrastructure automation with NetBox and Salt Stack, and is afraid of vendor-SDN solutions ever since.
Despite that fear, he's leading a team of SDN enthusiasts at Hetzner Cloud, to build the new network stack for the cloud using eBPF and XDP, and forwarding and dropping packets at line rate.

In the residual spare time likes playing piano and the organ, and doing wood work to get away from IT.

Folgt später durch die Vortragenden

Molly is a Systems Engineer at Flying Circus Internet Operations GmbH, where she works in the platform team on datacentre networking.

Moritz is an experienced manager in the networking industry, currently building something new at EdgeOps. He is passionate about the network industry and its drive to connect people and networks, which he supports as the driving force behind Stuttgart-IX and as Vice Chairman of DENOG e.V. in his spare time.

Moritz has over ten years of experience with global and regional carriers, national data centres, global CDNs, and global cloud providers, and shares his industry knowledge as a freelance consultant.

I am the head of network infrastructure by day at PFALZKOM, but I also have fun building networks for non profit events like WHY2025 or other related conferences/events in my spare time.

Patrick is working as an Systems Engineer for Arista Networks. He is based in Austria and is passionate about networking and automation. He has more than 13 years of experience in the networking industry mostly working at or with various Service Providers.

@Xantaro

I'm co-founder of Synogate, a startup for chip design (RTL/VLSI) and FPGA development with focus on network accelerators, smartNIC applications, and stateful networking/flow tracking at 100+ GbE.
We have deep roots in software development, expertise in IP networks and a free and open-source framework for more productive and accessible digital circuit design called "Gatery". With this, we quickly develop highly performant, efficient and secure networking solutions for data centers and internet infrastructure.

• Economist Universities of Konstanz and Zurich (lic. oec. publ.)
• Philosopher LMU Munich (Doctorate in Philosophy)
• Expert in executive coaching, leadership advisory and stakeholder management
• Licensed Coach Columbia Business School
• Executive Education Coach at the IESE Business School
• Managing Director Esquai Leadership Advisors GmbH

Poh is a Tech Lead in CI/CD & Systems at Inter.link and is responsible for the software delivery and infrastructure that underpins our customer Portal.

I am Sascha, co-founder of EdgeOps.

In addition to providing support in the operation of data centers and networked systems, I deal with topics related to data protection, information security as well as audits - and help companies to make their operational and security processes not only compliant, but also viable in practice.

In my work, technical depth meets realism: I advise companies on how they can integrate security and data protection not as a chore, but as part of their daily practice - without losing the fun in technology.

Stefan is the Head of Network and Infrastructure at Inter. He and his teams are responsible for developing, operating, and expanding Inter.link’s global network and functions. He began his career in network operations and building global infrastructure at the start of the 2000s.

Susi Bauer (She\Her or They\Them) is a bilingual, neurodivergent freelancer with a decade of experience in the UK video games industry. She is trained by ADHD Works and ICF-accredited coaches to ensure she brings best practices and strategies to her clients. Susi focuses on professional skills, neurodivergence, EDI, company culture, leadership, and games careers.

Her job is to share conversations, knowledge & tools with individuals & organisations to foster growth. She loves to collaborate in order to find better answers to old questions and build understanding spaces where people's needs can be recognised and met. Susi uses a mix of coaching, training, facilitation & consulting to help clients find solutions that work for them.

Since May 2023, I’ve been working as a Sales Development Representative at EXFO, where I focus on driving strategic growth within the Data Center sector across the DACH region. I’m primarily responsible for all business operations in Austria, as well as managing a portfolio of key accounts across Germany. This role allows me to work closely with a diverse range of clients, understanding their unique needs and helping them find the right solutions from portfolio of innovative testing, monitoring, and analytics tools.

Takaya is a Sales Enginieer at NTT Advanced Technology(NTT-AT) based in Japan.
He is with NTT Advanced Technology Corporation more than 20 years both Sales and Engineering team.
In recent years, He has been in charge of sales and support for optical communication related equipment
and have participated NOGs in various countries.

Thomas Lohninger, Executive Director of epicenter.works explains why net neutrality must be defended today just as it was ten years ago - and why now is exactly the right time to put internet providers like Deutsche Telekom in their place.

Thomas Weible is the creative brain of FLEXOPTIX. A real rebel who dreams up innovations such as the FLEXBOX. He dives deep into the inner life of optics and loves experimenting on real-life problems with our customers. For more than 17 years he has been part of the internet community and has specialized in optical networking.

Tim Kleefass started with DENOG2 conference and is engaged in the DENOG conference and meetup organisation since years. He's also part of the PC and since end of 2023 treasurer of the board. Besides being involved into Stuttgart-IX, his professional live brought him to BelWü, SWITCH, EXARING (waipu.tv), OneFiber Interconnect and since February 2024 as head of global network design to DE-CIX.

Currently working as a Solution Architect at a german ISP called Plusnet. Looking after all kinds of technologies needed to run an ISP business.

Formerly working for a Service Integrator for >10y. If IP was involved it typically passed my desk at one point in time. From DC to SP networks both fixed and Mobile. Touching all layers of the stack. Even before that working for 8y in the hosting industry and worked my way from system administration towards networking and running the back than European network of that hosting provider.

Part of the wider DENOG community longer than i remember. Regular Guest since DENOG2, spoken on a couple of DENOG events over the years.

Tom has worked for more than a decade in the networking industry, always at the bleeding edge.
From global MPLS network, to datacenter fabrics, to automation - all those things he did. Nowadays he is working as a product owner for network orchestration - shaping with his team the future of network automation toolchains at one of the leading internet exchanges.

Vanessa works as IT Infrastructure Architect at DB Fernverkehr, with a focus on architecting the networking as well as monitoring and similar tooling for trains.

In her spare time, she is working on some experimental infrastructure and tooling, for example an IPv6 only network.

My name is Vincentz Petzholtz and I have been working in the Network Industry since ~2006.

I’ve been a Network Engineer and Solution Architect through different positions and companies (Interoute/GTT/SysEleven/Inter.link). I've worked in small to very large projects, enterprises and networks. From simple to complex SDN driven (commercial or self build) to internet scale solutions. I'm happy to talk at conferences, community events and arrange workshops in a public and/or private setting. Talking to customers and understanding their needs is something I enjoy. Engineering is at the heart of those things and is connecting everything. Main areas of expertise have been BGP (Routing, Policies etc.), MPLS/Traffic Engineering, DataCenter Fabric, Network Security (especially DDoS Detection and Mitigation) and overall network design and architecture. Besides that I also contribute to the Internet Community via the Berlin Internet Exchange (BCIX) as a member of the advisory board.

In 2024 I joined Arista Networks on my journey to build the best networks possible to tackle the challenges ahead together with our customers.

My linkedin profile: https://www.linkedin.com/in/vincentz-berlin/

I have over 15 years of experience in SRE/DevOps/SysAdmin/SysEng kind of experience (currently working at NVIDIA), but I have always had a passion for working with hardware. Networking is currently my hobby, and as I come from a different background, I sometimes see things that other people miss.

Wilhelm is an active member of the internet community and a regular speaker at conference. He has been in the networking industry for 30+ years. to day he is the CEO of Route 128 GmbH in Berlin, a company spcialising in IPv6 deployment, consulting and training.

After completing his degree at Karlsruhe University, Wolfgang started working as a network engineer at Xlink in 1994. He went on to become head of network operations and peering manager at a range of ISPs.

In 2006, Wolfgang joined DE-CIX as Director Customer Support, a position he held for ten years. Since 2016, Wolfgang has been head of the DE-CIX Academy, making sure customers understand how BGP and other routing protocols work.