SYS.ID // DE-BY-LETTENMEIER

PROTOCOL // MISSION-CRITICAL ARCHITECTURE

LAT 48.137° N • LON 11.576° E

STATUS // 99.99% UPTIME SPEC

LOADING WEBSITE // CORE

ALL FROM A SINGLE SOURCE:

We build your company app.

Developed by engineers who know their craft. Maximum reliability, intuitive operation, and tangible results instead of theoretical concepts.

Book a technical intro call → View case studies

99.99% Uptime guarantee

0% Colorful box-clicking

> 10 YEARS Experience as engineer and programmer

REAL VALUE No code for its own sake

PAST PROJECTS // Proven results

Results, not hot air.

No academic prototypes, but software hardened in real day-to-day business. Built for operational speed, zero downtime, and measurable added value.

This website is being revised (October 2026). Videos are still to come.

Mobile & web platform // trades & construction

Speakfloor: On-site quotes in 5 minutes instead of 60

Paperwork and spreadsheet quoting cost you valuable jobs (time kills all deals). Speakfloor lets tradespeople create a print-ready quote with a visual room preview right on the job site in under 5 minutes and collect the deposit electronically on the spot.

60 → 5 MIN On-site quote creation

+38% Increase in close rate

100% Offline-first architecture

KEINE Additional software needed

PWA Python & ML Google Cloud Redis Offline Sync

This website is being revised (October 2026). Videos are still to come.

Realtime visualizer // e-commerce & dealers

FuBoMat: Interactive room visualizer on the web

Customers struggle to picture static sample boards in a room – that leads to hesitation, long consultations, and costly returns. FuBoMat brings high-performance visualization to any website as a widget.

< 5 MIN Widget integration into CMS

WebGL / Canvas Python Backend Railway Embed API

MY BACKGROUND & WAY OF WORKING

Craft precision in code.

As a trained carpenter and engineer, I connect both worlds in my work. Practical applicability, as well as a well-thought-out system.

NAME Tobias Lettenmeier

DISCIPLINE Software Architecture & Lead

LOCATION Bavaria / remote worldwide

STATUS ● Available Q4 / 2026

We don’t build fair-weather apps, but reliable digital workhorses. Built so you can put them through their paces.

PILLAR 01 // EXPERIENCE IN THE PHYSICAL WORLD

Liability instead of buzzword bingo

Years of project leadership in physical industries: wherever mistakes burn real money, end up in court, or shut down factory floors. That risk awareness goes into every line of architecture.

PILLAR 02 // THE CARPENTER’S PRINCIPLE

Built for decades, not days

A good piece of furniture is used and has to last. The same is true for software: intuitive ergonomics for the user, combined with solid load-bearing capacity in the background. Software engineering is craft with a system.

PILLAR 03 // THE LIFECYCLE

What counts is 24/7 operation

Anyone with a prompt can type code today. The real engineering is ongoing operation: what happens at 4:00 a.m. on a Sunday under load? We lock in monitoring, scaling, and stability from day one.

ENGINEERING NOTES // BLOG

Thoughts, analysis & practice.

No SEO-generated filler. Grounded observations on software architecture, AI hype, and digital longevity.

ESSAY Jul 13, 2026

Everyone is currently an AI consultant...

AI consultants are currently sprouting up like mushrooms. Whether everyone actually knows what they are doing remains to be seen...

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ESSAY Jul 06, 2026

Happy Birthday, Dear Gesellenstück!

My Gesellenstück turns 20 years old. At that time, there were "old-school" master carpenters who believed CNC machines would soon make the joiner's trade obsolete. Just like today with the topic of AI...

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READY FOR PRODUCTION

Ready for software that doesn’t crash?

Let’s use a no-obligation 20-minute architecture call to check whether your project is viable, stable, and future-proof to implement.

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