Aleksander Lorenc
Senior IOS Developer - Contractor at Freelance
Greater Poland Voivodeship
Summary
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SeniorAleksander Lorenc is a Senior iOS Developer and contractor with a decade of experience building native mobile apps and backend services for high-scale products in Poland. He combines strong iOS expertise (Swift, MVVM-C, migrations from Objective-C) with practical backend and DevOps experience gained across OLX, Allegro and other teams, working with Kotlin, AWS, Terraform and Kubernetes. Known for a test-first mindset and attention to detail, he has led cross-functional teams, modernized legacy clients, and implemented white-labeling and multi-flavor iOS solutions for banking and delivery platforms. He has contributed to server-side Swift tooling and OSS at Allegro and repeatedly navigated complex API contracts and stakeholder-driven edge cases. Comfortable switching between hands-on implementation and technical leadership, he delivers pragmatic, well-tested systems that scale. Based in Greater Poland Voivodeship, he thrives on turning messy legacy codebases into maintainable, production-ready products.
10 years of coding experience
7 years of employment as a software developer
English, Polish, German
Github Skills (55)
null-safety9
picture-in-picture9
tinder9
viewcontroller9
swift9
collectionview8
lisp8
chat8
koloda8
ios8
jsqmessagesviewcontroller8
messenger8
messaging8
animation7
simplify7
Programming languages (8)
Github contributions (5)
evilmint/aws-openapi-lint
Nov 2019 - Mar 2022
AWS Gateway Integration linter for OpenAPI 3.0.x specs
Contributions:6 releases, 5 commits, 1 PR in 2 years 4 months
swaggerlinterpythonaws-apispecs
evilmint/ALSlidingNavigationBar
Jun 2017 - Jul 2017
Contributions:39 commits, 36 pushes, 1 branch in 14 days
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