04.11.2026 aktualisiert

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AI Engineer | Senior Apple Platform Engineer | iOS, Swift, OpenAI Agents SDK, Codex

Berlin, Deutschland
Weltweit
General Computer Science, Charles University - Czechia (2007 - 2009)
Berlin, Deutschland
Weltweit
General Computer Science, Charles University - Czechia (2007 - 2009)

Profilanlagen

Adam-Horacek-AI-Engineer-Apple-Platforms-CV-2026.pdf

Über mich

AI Engineer and Senior Apple Platform Engineer with 15+ years shipping software. I build AI agents and developer tooling in Python and TypeScript with OpenAI, Codex and MCP, alongside iOS/macOS delivery in Swift. Banking experience, tested workflows and human-reviewed execution.

Skills

AI AgentsRAGLLMOpenAIChatGPTIpad AppArchitekturUnit TestingBankingMobile Application DevelopmentCode-ReviewConcurrent ComputingContinuous DeliveryContinuous IntegrationDebuggingGitHubIos SdkIphone AppsPythonMobiles BankingObjective-CTypeScriptUI TestingWorkflowsDesign PatternsUikitChatbotsSwiftuiConcurrencyPrompt EngineeringSwift (Programmiersprache)Generative AIGitLabGitGitlab-CiFintechXctest
AI Engineer and Senior Apple Platform Engineer with 15+ years shipping production iOS, iPadOS, macOS and fintech/mobile banking software. I combine Apple platform expertise with applied AI engineering: OpenAI, Codex, AI agents, agentic workflows, LLM applications and developer tooling in Python and TypeScript.

Apple Platform / iOS AI: Swift 6, strict concurrency, async/await, actors, Sendable, SwiftUI, UIKit, AppKit, iOS, iPadOS, macOS, tvOS, Observation, SwiftData, Swift Charts, Metal, Kotlin Multiplatform integration and DTO boundaries. Local AI exploration: Ollama, Core ML, ML Kit, on-device AI, local inference and privacy-first AI integration.

OpenAI / Agentic AI: OpenAI API, OpenAI Agents SDK, Codex SDK, MCP/connectors, tool calling, prompt engineering, instruction design, context engineering, workflow orchestration, handoffs, human-in-the-loop review, safe tool execution and verification loops. API/connector-based retrieval-augmented generation (RAG): source-grounded requirements synthesis from Figma, Jira and Slack.

Personal AI tooling: Agentic Review (TypeScript, XState, Codex SDK) combines GitHub/Jira context, CodeRabbit findings and Codex verification, with resumable state, schema validation, revision checks and human approval before GitHub writes. Relay (Python, Codex) coordinates long-running planner/executor/reviewer workflows with persistent handoffs, recovery and revision-bound review evidence. These are tools built for my own engineering work.

Codex / AI-assisted Delivery: repo-local workflows with Codex, Claude, CLI agents, skills, plugins, MCP tools, worktrees, Plan/Goal Mode, subagents, parallel tasks, code review, refactoring, migration planning, test generation, debugging, documentation and CI verification. Focused on auditable, reproducible changes in real codebases.

Architecture & Quality: Clean Architecture, MVVM+C, Coordinators, Clean Swift/VIP, VIPER, modular architecture, SwiftPM, XCTest, Swift Testing, pytest, Vitest, unit/UI/snapshot/integration tests, CI/CD, GitHub/GitLab, secure configuration, authentication/session lifecycle and Instruments. Languages: Python, TypeScript/JavaScript, Swift, Objective-C, C/C++, Bash; data work with NumPy, Polars and PyArrow.

Domain Context: regulated fintech and mobile banking, including Deutsche Bank, Postbank, FYRST and BestSign. Bringing production architecture, concurrency, security and testing experience to AI-native Apple apps, OpenAI/LLM integrations and reliable agentic workflows.

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2009

Sprachen

DeutschgutEnglischverhandlungssicherTschechischMuttersprache

Projekthistorie

AI Engineer | Senior Apple Platform Engineer | OpenAI, Codex, Swift

Independent Contractor
Apple-platform client delivery alongside applied AI engineering and developer tooling for my own work.

Client delivery: iOS, iPadOS, macOS and tvOS; Swift 6 migrations, strict concurrency, async/await, actors, Sendable and data-race fixes; SwiftUI/Observation, DTO boundaries, Kotlin Multiplatform integration, Swift Charts/Metal, tests and CI/CD. Integrated Codex and Claude into implementation, refactoring, documentation and code review with build/test verification.

Personal AI tooling:
- Agentic Review (TypeScript, XState, Codex SDK): PR review runner combining GitHub/Jira context, CodeRabbit findings and Codex verification; resumable state, schema validation, revision checks, human approval before GitHub writes and failure-path tests.
- Relay (Python, Codex): long-running planner/executor/reviewer workflows, persistent handoffs, recovery and validation of revision-bound review evidence.
- Retrieval-backed requirements synthesis: reusable skills combining Figma, Jira and Slack sources into technical specifications; API/connector-based RAG, prompt/context engineering and source grounding.

Prototyped OpenAI Agents SDK and MCP integrations, tool calling and local AI with Ollama/on-device model experiments. Focus: reliable agentic workflows, clear data/tool boundaries and auditable, human-reviewed delivery.

Lead Apple Platform Engineer | iOS Banking, Swift, CI/CD

Deutsche Bank
Led development of greenfield, white-label mobile banking and signing apps for Deutsche Bank group brands including Postbank, FYRST and BestSign. Senior Apple platform / iOS engineering in a regulated fintech environment with high security, release quality and maintainability requirements.

Focus areas: Swift, native iOS, modular Clean Architecture, Coordinators, RxSwift, Swift Package Manager, secure configuration, authentication/session lifecycle, transaction verification, CI/CD, environment configuration, code review, mentoring and production releases.

This work is directly relevant to AI-native Apple apps and OpenAI/LLM features that need secure architecture, privacy-aware data boundaries, tool-driven delivery, testing, review loops and maintainable integration into existing enterprise mobile codebases.

Senior Apple Platform Engineer | Enterprise iPad, Swift, Security

Deutsche Bank
Developed and maintained enterprise-grade iPad apps for Deutsche Bank corporate banking and branch workflows. Apple platform engineering for security-sensitive internal iOS/iPadOS applications with a focus on reliability, usability, performance and production delivery.

Focus areas: Swift, UIKit, iPadOS, Clean Swift/VIP architecture, enterprise app workflows, Apple Enterprise Design Labs collaboration, concurrency and data-race debugging, dependency modernization, Workspaces, unit/UI testing, code review and developer experience improvements.

Relevant for AI-native work where new AI, OpenAI, Codex or LLM-assisted features must fit into secure business-critical Apple workflows without breaking reliability or compliance expectations.

Senior iOS Engineer | Swift Migration, Messaging, VoIP

VEON
Modernized a high-traffic messaging and VoIP iOS app by migrating Objective-C components to Swift and improving maintainability of a real-time communication codebase.

Focus areas: native iOS, Swift, Objective-C migration, messaging, VoIP, VIPER, SOLID, modular refactoring, performance-aware UI work, code quality and feature delivery in an active production app.

Strong background for AI chat, assistant and conversational product surfaces on Apple platforms, where Swift architecture, messaging UX, real-time state and production stability matter as much as the AI model integration itself.

Senior Apple Platform Engineer | iOS/iPadOS UX, App Delivery

Sapient Nitro
Delivered iPad and iPhone improvements for the European Tour app, working across UI/UX, feature delivery and production quality with an international team.

Focus areas: native iOS, iPadOS, UIKit, App Store product delivery, user-facing mobile features, UI quality, code reviews, offshore collaboration and pragmatic engineering standards.

Apple platform delivery experience for polished user-facing apps, AI-native iOS features, assistant interfaces, ChatKit-style product experiences and OpenAI-powered workflows that need to feel native instead of bolted on.

Senior iOS Security Engineer | JWT/SSO, Auth, Regulated Apps

Aegon
Re-architected UI layers and implemented client-side authentication for a regulated financial-services iOS app. Security-focused native Apple platform work in an enterprise environment.

Focus areas: iOS, Swift/Objective-C, UIKit, MVC/MVVM architecture, JWT, SSO, authentication flows, secure client-side implementation, crypto-oriented improvements, defensive coding, maintainability and production delivery.

Security and authentication experience for AI-native Apple apps, OpenAI integrations and agentic workflows that need clear user identity, permissions, data boundaries and safe execution inside regulated product environments.

Senior Apple SDK Engineer | iOS SDK, Swift, Security, Tests

Qredo
Consolidated an Objective-C/Swift iOS SDK and improved stability in a security-sensitive communication product. Fixed hundreds of failing tests, optimized multithreading/message queues and strengthened secure communications.

Focus areas: iOS SDK development, Swift, Objective-C, Apple Security framework, binary protocols, multithreading, message queues, test stabilization, secure networking, maintainability and production-quality SDK delivery.

Low-level Apple platform and SDK experience for AI-native apps, OpenAI tool integrations, local agents, secure client libraries and production systems where concurrency, testing, data flow and security boundaries matter.

Senior iOS Engineer | Offline Sync, APIs, Distributed Data

Farm At Hand
Built a native iOS farm management app with offline multi-user support and synchronization. Worked across product features, API design, backend collaboration, DevOps input and hiring support.

Focus areas: iOS, Swift/Objective-C, offline-first mobile architecture, synchronization, distributed data, API integration, multi-user workflows, reliability, release delivery and cross-functional product engineering.

Practical foundation for AI-native Apple apps that need local state, offline behavior, Core ML/on-device AI, cloud/API integration, reliable synchronization and maintainable product architecture.

Zertifikate

Claude Code in Action

Anthropic

2026

Getting started with TensorFlow 2

Coursera

2022

Portfolio

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