Leuven, Flanders, Belgium

act digital is hiring a Senior Application Architect

act digital is looking for a Senior Application Architect to strengthen its mobile platforms division. In this role, you will contribute to the design, implementation, and evolution of complex application architectures with a specific focus on mobile ecosystems and providing iOS technology leadership.

What You'll Do

  • Lead the implementation of application architecture across multiple platforms and teams.
  • Enhance and optimise the organisation’s information systems by expanding and refining architectural components.
  • Identify and promote reusable infrastructure and data-modelling assets.
  • Manage database architecture, including selecting and designing storage systems.
  • Support both application development and long-term maintenance.
  • Shape the technical roadmap and direction of the iOS platform.
  • Design and implement complex, high-impact platform features and architectural improvements.
  • Influence architectural decisions relating to modularisation, scalability, performance, and security.
  • Safeguard and evolve coding standards, development practices, and architectural guidelines.
  • Mentor developers and support their technical growth.
  • Provide in-depth code and architecture reviews with structured, constructive feedback.
  • Promote clean code, effective testing practices, and engineering excellence.
  • Align with Android teams on cross-platform principles and architectural consistency.
  • Work with UX, backend, security, and architecture stakeholders to ensure cohesive end-to-end solutions.
  • Contribute to broader mobile strategy and technical discussions beyond iOS.
  • Evaluate emerging technologies, frameworks, and platform evolutions.
  • Convert long-term platform vision into actionable technical roadmaps.
  • Identify opportunities to simplify, modernise, and innovate within mobile architecture.

What We're Looking For

  • 5+ years of experience designing and implementing application architecture.
  • 8+ years professional iOS development experience with ownership of complex applications.
  • Strong expertise in Swift, including SwiftUI and UIKit.
  • Experience with modular architectures and Swift Package Manager.
  • Advanced understanding of networking (URLSession, Codable, async/await).
  • Familiarity with iOS design patterns (MVVM, Coordinator, DI).
  • Understanding of accessibility and inclusive mobile design.
  • Strong awareness of mobile security (e.g., certificate pinning).
  • Solid knowledge of iOS release pipeline and App Store processes.
  • Proficiency with Git-based workflows (GitHub/Bitbucket).
  • Experience with CI/CD environments.
  • Analytical and conceptual thinking.
  • Broad ICT architectural knowledge.
  • IT infrastructure and security awareness.
  • Software development fundamentals and process-driven thinking.
  • Tactical and strategic planning capabilities.
  • Knowledge of Agile methodologies and practices.
  • Experience with scaled Agile environments (e.g., SAFe).
  • Experience with iOS SDK, Xcode, macOS development environment.
  • Must hold a valid work permit if non-EU.
  • Must hold a valid residence permit.

Technical Stack

  • Swift, SwiftUI, UIKit, Swift Package Manager, URLSession, Codable, async/await
  • MVVM, Coordinator, DI, iOS SDK, Xcode, macOS
  • Git, GitHub, Bitbucket, CI/CD

Team & Environment

You will collaborate closely with architects, database designers, development teams, analysts, and product stakeholders.

Required Skills
SwiftSwiftUIUIkitMVVMiOS DevelopmentApplication Architecture
Job Details
Location Leuven, Flanders, Belgium
Department Information Technology
Category Mobile
Posted 5 months ago
About company
act digital
Act Digital is a consulting and technology expertise company created in 2006, focused on accompanying clients on their digital transformation challenges. Their offerings are structured around Software Delivery, Infrastructure & Cloud Computing, Agile IT Performance, and Business Performance.
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