About me

Roman Resenchuk

iOS and macOS developer and agentic AI developer. I build native apps in Swift and SwiftUI with on-device AI, and custom agent harnesses, autonomous agents, multi-agent orchestration and MCP tool integrations. Open for projects and senior roles.

Since 2011, I've been building applications for Apple platforms, both independently and as part of teams, including technical leadership and mentoring. I work with a modern native stack: Swift (SwiftUI, UIKit, AppKit, Concurrency), having started with Objective‑C.

As soon as AI coding agents appeared, I went all in on agentic development. I build my own harnesses around coding agents: rules, skills, subagents, MCP servers and automations that plan, write, review and ship code, so one engineer delivers like a team.

Attended Apple WWDC in 2018 and 2019, and regularly join local meetups. In my spare time, I ship my own apps - full cycle from idea to release, including design, development, UI/UX, and ASO.

Working with me, you’ll get:

  • – reliability and on-time delivery
  • – professional communication
  • – efficiency and alignment with requirements

What I build

I build native apps for every Apple platform: iPhone, iPad, Mac and Apple Watch, from concept to App Store release. Beyond apps, I do agentic AI development: agent harnesses, autonomous agents and MCP tools.

Mac apps

Mac apps of any scale, from utilities to complex products.

Mobile apps

iPhone, iPad and Apple Watch apps, widgets and subscriptions.

AI agents

Agent harnesses, autonomous agents and MCP tools.


Top projects

SHOW ALL PROJECTS

Skills

Platforms

iOS macOS watchOS tvOS visionOS

Languages

Swift Objective-C C C++

Frameworks

SwiftUI UIKit AppKit WatchKit WidgetKit

Technologies

Core Data CloudKit Swift Concurrency Metal

Tools

Xcode Instruments TestFlight App Store Connect

AI tools

AI agents Claude Code Codex Gemini CLI Antigravity Cursor GitHub Copilot MCP Local LLMs Ollama LM Studio MLX llama.cpp Qwen

CONTACT ME

I am actively seeking new opportunities and always open for:

  • · iOS and macOS app development
  • · Agentic AI: agent harnesses, autonomous agents, MCP
  • · Full-time Senior positions
  • · Technical partnerships
  • · Consulting opportunities

Let's discuss how I can help bring your app ideas to life!