01
App development
Mobile apps with Flutter: from the first idea through state management and offline mode to a release on the App Store and Play Store.
Experience
85%
Jan Eggers
- Based in
- Hamburg, Germany · —
- Focus
- Apps, web, interfaces
- Since
- 2018 — 7 years of coding
- Contact
- Say hello
About me
02 — About
I like building things I actually use myself — and understand while building how they really work.
I am 20 years old, from Hamburg, studying business informatics in a dual programme. It started as a teenager with my own games and club websites – and grew into things like RideOnIt, a Flutter app with its own backend, maps and more than a hundred achievements.
These days I move between app and web: Flutter and Dart for mobile, Supabase and SQL for everything behind it, HTML, CSS, JavaScript and PHP on the web. Plus the parts nobody sees – hosting, domains, deployment and data protection.
Even though I spend a lot of time in front of a screen, staying active matters to me – especially volleyball, one of my biggest passions. The perfect counterweight to the digital world, and often where new ideas come from.
Smaller things happen alongside: tools for university, pages for friends and clubs, experiments with frameworks I cannot use yet. I learn the most from projects that turn out bigger than I first thought.
- 0
- Projects released
- 0
- Years of coding
- 0
- App on the App Store
03 — Skills
What I do
01 of 06
02
Web & frontend
Hand-written code instead of builder bloat. Clean markup, fast loading and animation that serves the content instead of burying it.
Experience
90%
03
Backend & data
What happens behind the surface: modelling databases, getting auth and permissions right, wiring up APIs and storing data so it still makes sense later.
Experience
75%
04
Design & interfaces
A rough idea turns into a layout: structure, typography, colour and a flow nobody has to fight through.
Experience
90%
05
Hosting & setup
Domains, SSL, mail delivery, deployment and the legally required bits – the part that never shows up in a portfolio and without which nothing goes live.
Experience
95%
06
How I work
Four things that stay fairly constant:
01
CuriosityI start projects because I want to know how something works.
02
PersistenceI have been working on RideOnIt for months – a good share of that was debugging.
03
AskingBetter to ask once too often than to build past the point.
04
Writing it downI document what I build – if only for myself six months later.
Most of it I learned because a project grew bigger than planned.
See the projectsKeep scrolling
Selected projects
04 — Work
Two projects I spent real time on: an app that made it to the store, and a website that simply does its job.
01 Project 2026 — today
RideOnIt
iOS & Android app
A Flutter app for ride tracking: GPS recording with distance, speed and statistics, generated routes, a live map of other riders, crews, events and a territory game where you claim areas while riding. Backend, database and permissions run on Supabase, maps on MapLibre, routing through Valhalla.
—Also
The rest happens on the side.
Tools for university, experiments with frameworks I cannot use yet, and pages for friends and clubs. Most of it ends up on GitHub rather than in a portfolio.
Where I come from
05 — Journey
From computer science class through the first paid projects to a dual degree – every stop added something.
Dual student
EDEKA IT Stiftung & Co. KG
Business informatics and project integration: supporting IT projects between business units and development, and learning how large systems really fit together.
Junior web developer
Freelance
Building and maintaining websites and web applications, smaller projects and turning UI/UX drafts into working interfaces for clients.
Student
Grammar school
Focused on computer science classes and extracurriculars in IT and programming – where my first games and club websites were born.
06 — Contact
Just say hello.
Questions about a project, feedback on the app, or just saying hi – my inbox is open. I usually reply the same day.
- info@eggers-jan.de
- Phone
- +49 170 5065066
- Location
- Hamburg, Germany
- Response time
- Usually the same day
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