Borja Arias
Senior IOS Engineer at Goodnotes
Grad Rijeka, Croatia
Summary
👤
Senior🎓
Top SchoolBorja Arias is a Senior iOS Engineer with nine years of experience building and scaling mobile apps from scratch and evolving large, modular codebases for product teams. He has led architecture migrations, created reusable frameworks and REST API wrappers, and introduced testing and CI practices at scale while working in finance and product-focused companies. Comfortable shipping features and reshaping system architecture, he pairs pragmatic engineering with a research interest in machine learning, having integrated deep learning and NLP models into mobile clients. An active contributor to Swift open source, he improved core data structures in the popular Swift Algorithm Club to enhance value semantics and code clarity. Based in Grad Rijeka, Croatia, he combines consultancy experience with long-term product roles, often operating at the intersection of engineering, architecture and ML-enabled mobile experiences.
9 years of coding experience
15 years of employment as a software developer
University of Seville
Github Skills (5)
data-structures10
algorithms10
swift10
data-structure10
refactoring9
Programming languages (3)
Github contributions (5)
kodecocodes/swift-algorithm-club
Aug 2017 - Aug 2017
Algorithms and data structures in Swift, with explanations!
Role in this project:
Backend Developer
Backend DeveloperContributions:13 commits, 2 PRs, 6 comments in 1 day
Contributions summary:Borja focused on refactoring and improving the `SinglyLinkedList` data structure within the Swift Algorithm Club repository. They removed loop detection logic and simplified the initializer to enhance value semantics, which included removing a constructor that could lead to misuse. They also removed the `Queue` protocol conformance and streamlined the codebase by removing needless self-references and adopting the project's style guidelines.
data-structuredata-structuresswift
newboadki/RSDataStructures
May 2018 - Sep 2025
Contributions:9 pushes, 1 branch in 7 years 4 months
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