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Fig. 00 —

Felix Thieltges

Product Engineer · Dash0

01Chapter one

About

I'm a product engineer at and work on , which adds OpenTelemetry to Kubernetes workloads without code changes. I wrote my on highly available clusters. In my free time I build mobile and web apps, do some design and tweak my Nix config.

now: building · side · learning more about observability · rebuilding , again

02Chapter two

Work

open sourcemaintainer

dash0-operator

now

A Kubernetes operator that discovers workloads, injects OpenTelemetry auto‑instrumentation and ships traces, metrics and logs — without touching application code.

node-1

node-2

node-3

3/3 nodes ready

thesisFontys

HA Kubernetes migration

2026

Bachelor thesis at schoolboost: moved an EdTech platform off a Coolify setup onto a highly available, autoscaling k3s cluster on Hetzner.

k3s
Hetzner
ArgoCD
PostgreSQL

9:41

Today

Hello, Felix.

😎 We're unstoppable!12-day streak

Today

😅

Durak game night at Andojas'

Lost five rounds in a row. Officially the durak.

Money3 to review

420,00 € left to spend before payday.

24 OctNetflix goes up to 13,99 €

1 NovPayday

Birthdays1 todaySee all

Andojas

Turning 24

Today!

One year ago today

🌊

First swim of the year

Way too cold. Did it anyway.

Important datesSee all

✈️

Flight to Lisbon

One-off

in 23d

side projectiOS · Android

alzheimer

2026

A second brain for everything I'd otherwise forget: the people I know, the days worth remembering, where my money went and the places I've been.

Current projectsbeing written up

Past projectsbeing dusted off

meanwhile on GitHub

03Chapter three

Experience

trace.id = felix · 4 spans

felix · career4 spans4y 1moin progress

Span

’232023’242024’252025’262026now

04Chapter four

Stack

( hover for notes )

§ 1 · 04

Infra & observability

the day job

Go·
Kubernetes·
Helm·
OpenTelemetry

§ 2 · 06

Apps

for fun

TypeScript·
React Native·
Expo·
Convex·
Next.js·
Tailwind CSS

§ 3 · 03

Tooling

holds it all together

Nix·
Turborepo·
Bun

05Chapter five

GitHub Activity

@thieltges

OctNovDecJanFebMarAprMayJunJulAugSepOct

4,359 contributions in the last yearLessMore