.NET & Swift Developer • Blogger at msicc.net
Hi, I’m Marco Siccardi, a self-taught developer with more than a decade of experience in .NET/C#.
I’m passionate about the MVVM design pattern and currently focusing on:
- 🚀 .NET MAUI for cross-platform apps (professional work)
- 🍎 Swift & SwiftUI for native iOS/iPadOS/macOS (personal learning & side projects)
- ⚙️ C# backend development with ASP.NET Core Web APIs
I publish software under the name MSiccDev Software Development.
Beyond code, I’m a husband and proud father of two amazing young adults.
Programming Languages
- C#, Swift, SQL, JavaScript, HTML/CSS, Kotlin, Objective-C, Bash/zsh, PowerShell
Frameworks & Libraries
- .NET MAUI, Xamarin.Forms, ASP.NET Core (Web API/MVC/Razor), WPF, UWP
- Backend focus: ASP.NET Core Web APIs, Entity Framework Core, SignalR
- SwiftUI, SwiftData (preferred), Core Data (familiarity)
Auth & Identity
- Microsoft Entra ID (Azure AD), OAuth 2.0 / OpenID Connect (client & API flows)
Databases & Persistence
- MSSQL, MySQL, SQLite, Cosmos DB, SwiftData
Testing & Quality
- TDD, XCTest (iOS), xUnit, NUnit
DevOps & Release
- GitHub Actions, TeamCity, Docker, Kubernetes (very basic knowledge)
- Apple codesigning & notarization (codesign, notarytool, iTMSTransporter), TestFlight
Tooling & Docs
- Visual Studio, Rider, VS Code, Xcode, Postman, Jekyll
- NuGet, Swift Package Manager (SPM), PlantUML (C4 model)
| Language | Speaking | Writing |
|---|---|---|
| German | Native | Native |
| English | Proficient | Proficient |
| Italian | Basic (B1 prep) | Basic (B1 prep) |
Galliker Transport AG (2023–Present)
- Building apps with .NET MAUI and iOS
- Developing and maintaining ASP.NET Core Web APIs
- CI/CD, Containers
- Member of the internal software architecture and AI transformation guilds
dormakaba AG (2021–2023)
- API development & system integration (focus on Kaba exos 9300)
- Designed and extended backend services with C#/.NET
ShareCommService AG (2015–2020)
- Shareholder meeting management software (WPF, SQL, Crystal Reports)
Telefónica Germany AG (2007–2014)
- From support agent → mobile hardware expert → internal app developer
- Built cross-platform app (Windows Phone, Android, iOS)
It all started with a personal need: a fishing knots app for Windows Phone.
Armed with online courses like “C# for Absolute Beginners”, I created Fishing Knots+.
That small app sparked a career in software development, leading to professional roles and open-source contributions.
- 📖 msiccdev.net Portfolio
- 🎣 Fishing Knots+ — my very first app (formerly on Windows Phone [RIP]) and the starting point of my coding journey
- 📱 TwistReader — feed reader (SwiftUI/TDD rebuild in progress)
- 🖥️ TimeTraverseHub — explore Instagram archives & repost to Fediverse
- 🥗 SmartMealWeek — AI-powered family meal planner with structured JSON validation and macronutrient tracking (in progress)
- WordPressReaderStd — .NETStandard library for WordPress (archived Dec 2024)
- CoinPaprika API Client — crypto market data for .NET (archived Nov 2024)
- Many smaller helper libs & forks → MSiccDev GitHub
- Exploring local LLMs such as Mistral, Llama, Qwen, and EuroLLM
- Building an AI-based translation service prototype tailored to internal needs at Galliker Transport AG
- Advanced CI/CD with GitHub Actions for iOS/macOS apps (Apple certificates, notarization, provisioning profiles) for my private projects
- Member of the Software Architecture Guild @ Galliker Transport AG
- Member of the AI Transformation Guild @ Galliker Transport AG
- Part of the organization committee planning the internal DevDay at Galliker Transport AG
- Conducted internal presentation on Entra ID integration in on-prem .NET APIs and mobile apps, maintaining the in-house libraries
- 📱 100 Days of SwiftUI — started but currently paused due to limited time
- 🎓 iOS Lead Essentials — currently at White Belt Level 3 (system design, persistence, UI best practices)
- 🌍 Italian B1 exam prep — Università Roma Tre, Oct 2025
- 🌐 Upcoming: JavaScript course — preparing for future React-based frontend projects at Galliker (1 day/week)
- 📖 Currently reading: Building LLM powered Application by Valentina Alto
- 🏃 Passionate runner (~40 km/week), developing tools to support training and motivation (for personal use, may evolve into a sharable product later)
- 👨👩👧👦 Family-inspired projects, especially SmartMealWeek, which was designed with our own family in mind
- 📝 Blog: msicc.net
- 🐘 Mastodon: @[email protected]
- 🌌 Bluesky: msicc.net
- 💼 LinkedIn: Marco Siccardi