Mobile App Development
From planning to live deployment and post-launch marketing, we handle the entire app lifecycle. Native iOS in Swift and cross-platform delivery via Kotlin Multiplatform — production code we can stand behind for years.
Senior iOS & Kotlin Multiplatform engineering from Düsseldorf — healthcare, quantitative finance, public sector. Since 2024 augmented by an autonomous multi-agent pipeline for code review, spec decomposition and routine implementation.
Selected clients







Forward-thinking app development — strategy, creativity and technology in one team. For start-ups and Fortune 500 alike.
From planning to live deployment and post-launch marketing, we handle the entire app lifecycle. Native iOS in Swift and cross-platform delivery via Kotlin Multiplatform — production code we can stand behind for years.
We design and run Agentic Process Automation — multi-agent pipelines (Claude Code, Codex, local LLMs) that handle routine engineering, freeing humans for architecture and review. AI-augmented SDLC, in production.
Strategy, UI/UX design, project management. We balance creativity, innovation and reliable delivery — pushing inspired, considered user interfaces without losing pragmatism.
In the age of AI, raw engineering is a commodity. We pick our verticals deliberately and go deep.
Patient-facing apps inside the German healthcare stack.
We ship into the German Telematikinfrastruktur — the regulated middle layer between patients, insurers and clinical systems. Multi-year experience on the electronic patient record (ePA), plus our own consumer health product Quantlife.
Algorithmic trading systems and market microstructure.
We build the engineering side of quantitative trading. Real-time algo systems running 24/7 on private infrastructure, custom backtesting, and the native clients on top. Concrete references on request.
Multi-agent stacks that ship production code.
We design and run autonomous engineering pipelines — agents that estimate, decompose, implement and review work, with humans on the architecture decisions. Over 80% of routine development in our own products is automated this way.
We pick the right stack per project. A selection of what we've shipped at scale.
Claude Code · Codex · MCP · Multi-Agent Orchestration · Local LLMs · OpenRouter · Context Engineering · Agentic Retrieval · Human-in-the-Loop
Swift · Obj-C · SwiftUI · UIKit · Swift Concurrency · Combine · Core Data · GRDB · HealthKit · StoreKit 2 · WidgetKit · App Intents
Kotlin Multiplatform · Kotlin · Flutter · Java · C/C++ · TypeScript · Python
MVVM · Coordinator · Clean Architecture · TDD · Unit / UI / Snapshot Tests · Code Review
Xcode · SPM · Fastlane · GitLab CI · Xcode Cloud · Jenkins · SonarQube
gematik specs · ePA · MIO · eMP / AMTS · FHIR · VAU+ · BIK BITV · WCAG 2.1 AA · DSGVO
OAuth 2.0 · OIDC · netID · Apple Sign-In
Vapor · Node.js · PostgreSQL · MySQL · SQLite · Redis · Docker · REST · GraphQL
Critical thinkers, exceptional doers, multifaceted creators. A place to realise your full potential and elevate your skills.
We encourage continuous learning and help each other accelerate growth and significantly boost skills.
Small team, high autonomy, no bureaucracy. Work directly with founders and senior engineers on production-grade products.
From Fortune 500 (IBM, EDEKA, RTL) to ambitious start-ups. You’ll work on apps with millions of downloads and AI pipelines that ship code in production.
Remote-first. Sensible hours. Outcome over output. We trust you to deliver.
Budget for hardware, books, courses and conferences. Apple Silicon by default. Access to the latest Claude, GPT, and self-hosted LLMs.
Sustainable pace. We’re playing a long game, not burning out for the next sprint.
Three humans, three agents. The agents are the same multi-agent stack we ship to customers — we eat our own dog food.
Senior Software Engineer & Founder with 15+ years of native iOS experience and a second discipline in Agentic AI since 2024. Builds and operates autonomous multi-agent pipelines. Domains: Healthcare and Quantitative Finance.
Spectrum of UX/UI and graphic design work. Turns complex problems into simple, clear and innovative designs — from concept through to production assets.
Has been planning and managing digital projects since the iPhone 3GS. Translates between business, design and engineering — the middleman that keeps complex projects shipping.
Anthropic Claude Opus running in our SDLC stack. Handles architecture, code review and spec decomposition. Doesn’t sleep, doesn’t drink coffee, occasionally rewrites your tests without being asked.
OpenAI Codex on the build server. Owns the green-pipeline obligation: fixes flaky tests, bumps deprecated APIs, ships nightly upgrade MRs while we’re asleep.
Self-hosted Qwen / Llama on our Apple Silicon rack. Handles anything that can’t leave the building — regulated data, internal docs, semantic search on the codebase.
Have a project, a role to fill, or a question? We respond within 24 hours.
Remote · Düsseldorf, Germany