Hi, I’m Dominik. I ship apps.

Swift engineer in Warsaw. Since 2020 I’ve built banking apps, NordVPN for Mac and on-device AI. Now I ship my own App Store apps with AI agents, and help engineering teams set up agent workflows they can trust.

Work with me

The replay needs JavaScript. It follows one app from a typed brief through planning, parallel builders, a failed test and its fix, checks in the simulator, and your approvals, to App Store review. The app it ships is DoseWise.

An illustrative replay, not a recording. Drag across the lanes to scrub.

My apps on the App Store

I design, build and release them myself. They are where my agent workflows get tested for real.

DoseWiseKeep medication schedules and dose history in one place.
App Store
Launch ControlPlan your morning backward from the time you need to leave.
App Store
InTouchKeep up with the people who matter to you.
App Store
CarriedPut what’s on your heart into words and receive a Christian prayer.
App Store
Closed ListChoose a finite list of commitments and know when you’ve done enough.
App Store
Clear IntervalsSimple work and rest timers for your workouts.
App Store

All apps and developer tools

Consulting for engineering teams

You work directly with me, starting from a real task or problem and an outcome we agree on first. Each kind of engagement has its own run in the trace above.

Custom AI workflows for your team

Agent skills that know your codebase and checks that verify each result, built around one of your team’s real tasks.

A working workflow, proven on a real task
Skills, tool connections and verification checks made for your codebase
Hands-on sessions and a handover your team can maintain

How consulting works

Native apps, end to end

Native iOS and macOS apps in SwiftUI, UIKit and AppKit, from the first build to App Store submission, with StoreKit or RevenueCat when the app sells something. My own apps shipped this way, and at AppUnite I built two fintech apps from scratch while leading the team.

On-device AI and audio

Local model integration, on-device transcription, text-to-speech and audio capture. At Littlebird I built the local meeting transcription pipeline for its macOS assistant.

Architecture and reliability

Intermittent failures, Swift concurrency, module boundaries and slow builds or releases. It starts with a focused review and can run through the agreed change to a handover.

ddskills

Open-source agent skills that automate parts of my own work: verifying apps on iPhones and simulators, orchestrating implementation runs across agents, App Store screenshots and social campaigns, and more. Use them on your own repository.

ddskills on GitHub

Apple verification loopRun focused Apple app checks, with isolated device testing when needed.
Manage Apple simulatorsGive each agent task its own simulator or device, then clean up, so parallel agents never collide.
Orchestrate implementation runSplit a feature across agents and bring their changes together through review and verification.
Coordinate multi-ticket runWork through dependent tickets with checked completion steps and recovery after interruptions.
App social campaignCreate an app campaign with finished posts, Reels, captions and a review pack.
Social campaign labExplore campaign concepts in parallel, review the options and package the chosen assets.

Earlier tools, no longer maintained: devflow, bug-fix and code-explain.

Read about ddskills

Native apps since 2020

Banking apps at Accenture, fintech at AppUnite, NordVPN’s macOS app at Nord Security and on-device AI at Littlebird. I now consult and ship my own apps and developer tools.

$20Ka month in cloud costs cut at Littlebird with local meeting transcription
70%fewer user-reported issues at Nord Security after concurrency work in core features
1.5 minbuilds at AppUnite, down from 8 minutes with modular architecture and TDD
2 hrelease cycles at AppUnite, down from 8 hours with GitHub Actions and Fastlane
2M+users across the three banking apps I worked on at Accenture

About me Résumé Download résumé (PDF)

Tell me about your project

Say what you’re working on and where it’s stuck. I reply within two working days.

Prefer email? hello@dominikdrag.com