01
AI-native development
Move coding agents from individual experiments into a dependable team capability, with the context, workflows, testing, and guardrails to ship.
- Agent workflows
- Developer tooling
- AI infrastructure
Independent software consultant · Stockholm
I help product teamsship what matters.
I’m Stefan Wärting, a senior engineer who turns AI coding agents, Android expertise, and solid delivery systems into measurable momentum.
20+ yearsshipping software at scale
Trusted on products used by millions
SpotifyZettleBlocketEasyPark
02
Where I create leverage
Senior depth for the work that can’t stay stuck.
I work where product ambition meets engineering reality: complex systems, high expectations, and teams that need momentum without shortcuts.
02
Android at scale
Build and evolve native Android products with Kotlin and Compose, from product features to performance, architecture, and platform health.
- Kotlin & Compose
- Architecture
- Performance
03
Delivery systems
Remove friction across builds, tests, releases, and environments so the whole team can deliver faster and keep delivering after I leave.
- CI/CD
- Gradle
- Release automation
03
Selected engagements
Built in the real world.
Products, platforms, and delivery systems serving millions of people.
01
Spotify
Login, sign-up, authentication, and client onboarding, supported by Android platform and delivery work.
At scale02
Zettle by PayPal
Platform engineering and delivery infrastructure for teams building payment products.
Platform03
EasyPark
Platform engineering and CI/CD for mobile product teams working across markets.
Delivery04
Blocket
Product development for Sweden’s leading marketplace, serving millions.
Marketplace04
How we work together
More momentum.
Less ceremony.
I can join an existing team, lead a focused technical initiative, or help establish the systems that make everyone around me more effective.
- 01
Find the constraint
Get close to the team, the code, and the delivery flow. Identify what actually slows progress.
- 02
Make it practical
Turn the right technical direction into working software, useful tooling, and visible results.
- 03
Leave the team stronger
Share the thinking, automate the repeatable parts, and build capability without creating dependency.
A little context
I care about the whole path from idea to production.
For more than two decades, I’ve built software across mobile, web, and the infrastructure behind them. I’m an independent consultant at Premex, an open-source builder, and a hands-on engineer who enjoys hard problems, candid collaboration, and tools that make good teams even better.
Have a difficult problem or a team ready to move faster?