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Adrian TruszczynskiAT

Adrian Truszczynski

Lead/Senior iOS Developer

€500/day
Warsaw, PL
8-15 years

Average response time: 1 hour

About Adrian

I help startups and companies build and scale iOS apps.

With 13+ years of iOS experience, I work on both greenfield projects and growing existing products. I usually join teams when:
  • a new mobile product needs a strong iOS foundation
  • an existing app works but is hard to change or scale
  • development slows down due to technical debt or unclear architecture
  • there’s no clear senior iOS ownership yet
I focus on building maintainable codebases, stabilizing apps as they grow, and helping teams ship faster with confidence.

I work best with small teams, founders, and product leads who value pragmatic decisions, clear communication, and independent execution.

If you’re building or scaling a mobile product and need senior iOS support, feel free to reach out.
  • Polish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Algorand Foundation (Pera)
    Lead iOS Developer
    January 2025 - Today (1 year and 7 months)
    I oversaw the refactoring of a legacy monolithic cryptocurrency wallet application into a modern, modular architecture based on MVVM, services, and data separation principles. In this role, I guided the team in adopting modern Swift and iOS development practices, including async/await, actors, thread separation, Swift Testing, and Swift Catalog. This work improved the project's maintainability, scalability, and overall development efficiency.
    SwiftUI MVVM iOS Mobile App Deployment Design Patterns
  • Tari Labs
    Lead Mobile Developer
    July 2021 - October 2024 (3 years and 3 months)
    I was responsible for overseeing the design, development, and maintenance of mobile applications within the Tari ecosystem. I worked closely with cross-functional teams to build innovative, scalable, and user-friendly mobile experiences that integrate with the Tari blockchain platform. Through my leadership, I helped drive the mobile development strategy, enabling users to securely interact with the Tari blockchain via intuitive and powerful mobile applications.
    Mobile App Deployment Tech Lead iOS MVVM Swift
  • Danske Bank
    Senior iOS Developer
    July 2019 - June 2021 (1 year and 11 months)
    Key responsibilities: Developing and maintaining payment module, Created and developed the unified, scalable and resulable API networking module

    As a Senior iOS Developer at Danske Bank, I was responsible for designing, developing, and maintaining critical components of the mobile banking platform, focusing on the payment module and API networking architecture.

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Education

  • Automatic Control and Robotics
    Gdańsk University of Technology
    Automatic Control and Robotics
  • PSM I (Professional scrum master)
    PSM I (Professional scrum master)

Skill set

Categories