Paulibytes UG – IT Consultancy Hamburg

1. paulibytes(1)
3. paulibytes(1)

NAME

paulibytes(1) – “cultivated pragmatism since 1982”

SYNOPSIS

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DESCRIPTION

paulibytes is a German-based IT consultancy focused on security, infrastructure and system automation.

paulibytes is a limited company founded in 2019. This is the company page reachable at paulibytes.de.

PROJECTS

Software built and operated by paulibytes. German market, mostly unglamorous paperwork problems.

• finisma.de: e-invoicing and payment files
  • PDF invoice in, ZUGFeRD/Factur-X out (EN 16931 CII-XML embedded in a PDF/A-3)
  • SEPA pain.001 and AXZ files for online banking, assembled in the browser
  • free ZUGFeRD viewer and a pain.001 validator against DK-TVS GBIC_5
  • agents can do the same over MCP at https://finisma.de/api/mcp
• nachweismeister.de: site documentation by voice message
  • Leistungsnachweise, Regiescheine, Aufmaße and VOB/B notices, recorded in WhatsApp or Telegram
  • roughly 100 spoken languages in, German or English PDF out, because that is how construction crews are staffed
  • KVA upload, GPS site detection, digital customer signature, time clock
• wz2025.io: WZ 2025 classification API
  • company description in, German WZ 2025 industry code out
  • translates existing WZ 2008 codes to WZ 2025 and NACE Rev. 2.1
  • built for onboarding, KYC/AML and statistical reporting
• makematiq.com: a company specialised in AI and automation
  • AI strategy, implementation and enablement for German mid-size companies
  • this is where the 0.7 AI detour ended up

ENVIRONMENT

• 1982 born in Dresden
• 1986 Berlin
• 2001 Wedel / Hamburg
• 2010 Mbeya, Tanzania
• 2016 Hamburg

MOTIVATION

• mum loves to tell that I could start games on our Atari 800 w/ XC12 before writing my name
• learning Basic programming from the age of 6
• first html and js programming with 11
• started exploring windows network security about the same age
• contact with Linux starting with SuSE 4.3 in 1996
• building fli4l low cost routers for German dial-in internet
• custom kernels and Xfce in 1998 to match limited resources of old AMD K6 II 350MHz
• going through SlackWare, RedHat, TurboLinux, Mandrake, Gentoo and Debian
• highly customized versions of WindowMaker, XFCE, later E17 with XFree86, X11, Xorg and composite extensions
• early 00’s it’s all debian and servers, my home server lena which was the Eierlegende Wollmilchsau or jack of all trades
• interest for all different kind of servers (Web, Mail, VPN, VoIP, etc) of course on encrypted filesystems
• started learning C in 2003 when my first SATA controller drivers had lots of problems in Linux kernel
• exploring network security in bigger networks to overcome http limitations in university network
• from there everything was straight forward, more and bigger servers, bigger networks, more encryption, etc

INTEREST

Besides having a broad general interest in technology and politics some key interests stick out.

• Clustering
  • Kubernetes, Mesos
  • concepts of distributed services and databases
  • Container as a Service solutions
• HA
  • with heartbeat and DRBD in 2006
  • k8s, scheduling, disruption budgets, automatic rescheduling and distributed microservices
• Infrastructure and Networking
  • IaaS, Infrastructure as Code
  • Distributed storage solutions
  • IP Routing, BGP
• Server client architecture and software design patterns
• Trade Finance
  • Factoring
  • Forfaiting
• Payments
  • European payment schemes
  • SEPA
  • EBICS
• IT Security Research
  • vulnerability analysis and responsible disclosure
  • network and infrastructure security assessments
• IT Security Training
  • security awareness for technical and non-technical audiences
  • hands-on workshops for developers and operations teams

HOBBIES

• German and international politics
• analog black&white photography
• photos by Lee Jeffries, Vivian Maier, Adrian Aseptyczny and Jonathan Goepfert
• squash and sports in general
• books and reading

SITE

This site is written in Markdown, converted with hugo with some styles from ronn and some lazy .css additions

VERSIONHISTORY

• 0.1 - 08/2016
  • Initial layout and css styling
• 0.2 - 09/2017
  • Updated some details
• 0.3 - 10/2017
  • third time … nope, automated. make push is way nicer
• 0.4 - 02/2018
  • added some hobbies .. yeah, surprise
• 0.5 - 06/2020
  • Minor changes and company disclosure.
  • Migrated from ronn to hugo
• 0.6 - 07/2022
  • IT security projects and vulnerability research.
• 0.7 - 02/2023
  • Focus on AI and automation.
• 0.8 - 08/2026
  • Added a projects section. Turns out we ship things now.

COPYRIGHT

The texts and images on this site are not worth copying.

SEE ALSO

Jonathan Goepfert

llms.txt if you are a machine, robots.txt if you are a crawler.

DISCLOSURE

Disclosure according §5 TMG and §55/2 RStV:

Paulibytes UG (haftungsbeschränkt)

Paulsenplatz 2 22767 Hamburg Germany

Represented by: Managing Director Michael Wilke mw-spam@paulibytes.de Commercial Register: HRB 157347 at Register Court Hamburg

VAT ID: DE325821677

No liability for external links from this website.

PRIVACY

No tracking plugins, no personalised logfiles. No problem.