Yannik
Zimmermann

I build data-driven products, from model to shipped app.

10+ years in softwareCo-founder of indigo online AGMSc Data Science at HSLU

See projects Email
m/s
FLYING
LATEST RELEASE

01 / SELECTED WORK

Selected projects

Small tools I built, shipped, and — mostly — kept in the air.

ILIAS Downloader HSLU showing a course tree with sync status per file (demo data)
P-01 / electron appv1.12.0

ILIAS Downloader HSLU

Desktop app for HSLU students: signs in to ILIAS, mirrors the course tree and keeps a local folder in sync with your slides and handouts, with search across every course.

ElectronTypeScriptNode.jsPDF.js
Website Releases
Colour Threshold Trainer run summary with demo scores and a chromaticity plot (simulated observer)
P-02 / browser demo

Colour Threshold Trainer

Browser demo of how a computerised colour-vision threshold test works, rebuilt from published research. A practice demo: not a medical device, not validated.

JavaScriptCanvasIndexedDBnginx
Live demo
Claude Accounts window listing three demo accounts: personal, work and research
P-03 / swiftui appMIT

Claude Accounts

Native macOS app to run several Claude desktop accounts side by side and send every claude:// link to the right one. Unofficial, open source.

SwiftSwiftUImacOSSparkle
Source Releases
COMING SOON
P-04 / relaunch in progress

Lghotzenwald.de

Website of my flying club, rebuilt on HeroUI v3 with content as validated JSON so non-technical members can edit it.

HeroUI v3ReactTailwind CSS
Coming soonCurrent site

02 / TRAJECTORY

The route so far

A logbook of waypoints — apprentice to co-founder, with a study or two and a glider along the way.

  1. 2012 — 2016WORK

    IT Apprenticeship

    Swisscom (Schweiz) AG

    Four years to Computer Scientist EFZ — backend, web apps and iOS. Picked up a Swisscom Young Champion award along the way.

  2. 2016 — 2017WORK

    Zimmermann Informatik

    Self-employed · Vitznau

    Ran my own little shop: web apps for Swisscom, sites for local clubs, and photography on the side. First taste of owning the whole thing.

  3. 2017 — 2019WORK

    Application Developer & Board Member

    analogDigital AG · Bern

    Full-stack development, project management and client consulting — plus a seat on the executive board.

  4. 2019 — 2023STUDY

    BSc Business Information Technology

    BFH · Business Data Analytics

    Best Bachelor Thesis in my cohort — a knowledge-graph study of Confluence data, with SBB as industry partner.

  5. 2019 — NOWWORK

    Co-Founder & Fullstack Engineer

    indigo online AG · Bern

    Grew a Holacracy-run agency from the ground up. Shipped full-stack apps for SBB, Swisscom and others; co-lead org development and mentor apprentices as a certified vocational trainer.

  6. 2024SERVICE

    Swiss Army

    Motor Vehicle Specialist · Cat CE

    A year on a rather different class of heavy machinery. Good for the perspective.

  7. 2025 — 2027STUDY

    MSc Applied Information & Data Science

    HSLU · ongoing

    Bridging engineering with analytical depth — turning a decade of building into a sharper data-science practice.

  8. ONGOINGFLYING

    Glider pilot

    Working toward PPL & future FI ratings

    The part that rarely makes it onto a CV. Active glider pilot, chasing lift and, eventually, a power licence and instructor ratings. Engines optional.

03 / STACK

Skills & stack

The instruments I actually reach for — grouped by what they do, not by hype cycle.

Data & ML

01
  • Python · R
  • Statistical modelling
  • scikit-learn · pandas
  • ggplot · data viz

Data & databases

02
  • SQL
  • Relational databases
  • Data analytics
  • Knowledge graphs

Development

03
  • TypeScript · JavaScript
  • React · Next.js
  • Node.js · NestJS
  • REST · GraphQL

Infra & teamwork

04
  • Docker · CI/CD
  • Linux · Git · GitHub
  • Jira · Scrum / Agile
  • Holacracy · org design

04 / ABOUT

Engineer on the ground, pilot in the air.

Software engineer, 10+ years building digital products. I co-founded indigo online, a Holacracy-run agency in Bern, where I ship full-stack apps for clients like SBB and Swisscom — and help shape how a self-organising team actually works day to day.

Alongside that I'm doing an MSc in Applied Information & Data Science at HSLU, turning a long-standing obsession with clean data and honest models into the next chapter.

Most good weekends I'm in a glider: no engine, no noise, just reading the air and managing energy. It shaped how I build — brief the plan, trust the instruments, keep a margin, always leave yourself an out.

// GITHUB25 public repos19 followerssince 2014tschannik

BASED
Vitznau, Switzerland
ALSO
Certified vocational trainer, mentoring apprentices
OFF DUTY
Sailing, cycling, hiking, photography