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Luka User

@lukauser1

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Senior iOS developer delivering scalable mobile apps with Swift, SwiftUI, and strong architecture focus.

Serbia

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What I'm looking for

I seek a senior mobile role building scalable iOS products, mentoring teams, and improving architecture in a collaborative, quality-driven environment.

I am a senior iOS developer with extensive experience building and maintaining production mobile applications for clients across Europe and the US.

I specialize in Swift, SwiftUI, UIKit and robust architectures (VIPER, MVVM, Clean Architecture), and I routinely improve complex existing codebases while implementing new features and UI components.

I have led and mentored teams, taught as a lead instructor, and driven quality and architectural standards across projects such as Plaky, a compliant ELD app, and multiple telecom and fintech apps.

I am self-taught with continuous learning goals, re-enrolled to complete a bachelor’s degree, and I seek roles where I can contribute to scalable products while mentoring others and evolving technical practices.

Experience

Work history, roles, and key accomplishments

Current

Senior iOS Developer

Current

Cake.com

Apr 2023 - Present (3 years 4 months)

Maintain and enhance a complex iOS codebase for Plaky, implementing new features and UI components in Swift/UIKit and collaborating with cross-functional teams to deliver scalable product improvements.

Swift UIKit SwiftUI Combine CoreBluetooth UI Development Cross Functional Collaboration MVVM Clean Architecture REST WebSockets Firebase APNS App Store Connect TestFlight Code Review

Senior iOS Developer

Quantox Technology

Apr 2022 - Apr 2023 (1 year)

Built and maintained multiple client iOS applications, collaborating with distributed teams to deliver production apps and ensure quality across projects.

Swift Objective C UIKit CI CD Testing Mobile Application Developer SwiftUI Combine

iOS Team Lead

Amplitudo

Sep 2021 - Apr 2022 (7 months)

Led a small iOS team, enforced code quality and architectural standards, and mentored junior developers and students on OOP, design principles, and app development.

Mentorship Team Leadership Architecture Swift Objective C MVVM

iOS Team Lead & Mentor

Amplitudo

Sep 2021 - Apr 2022 (7 months)

Led a small iOS team, reviewed architecture and implementation decisions, maintained code-quality standards and mentored junior developers and students.

iOS Swift Architecture Code Review Mentor

iOS Developer

Amplitudo

Dec 2018 - Sep 2021 (2 years 9 months)

Developed multiple mobile apps in Swift and Objective-C, collaborating with QA, designers, and project managers to deliver client-facing solutions for public and private sector clients.

Swift Objective C UIKit CoreLocation CoreBluetooth REST APIs Agile REST Firebase APNS

Independent Consultant

FMCSA Certified ELD & Vehicle Telematics Platform

End-to-end ownership of a certified Electronic Logging Device product across feature and product planning, UX/UI direction, architecture, implementation, testing, releases, maintenance, production support and ongoing regulatory compliance. Drive product and engineering decisions across iOS and Android, translating operational and regulatory needs into product direction and release-ready mobile fun

Swift SwiftUI Combine Realm CoreBluetooth Kotlin ROOM GPS Telematics HOS WebRTC

Education

Degrees, certifications, and relevant coursework

Univerzitet Mediteran - Fakultet za Informacione Tehnologije

Bachelor of Science, Information Technology

2016 -

Activities and societies: Re-enrolled in 2024 with the goal of obtaining a bachelor's degree; lead instructor for iOS course at Amplitudo (2021-2022).

Attended Faculty of Information Technologies at Univerzitet Mediteran from 2016 to 2018; paused studies in 2019 for work and re-enrolled in 2024 to complete a bachelor's degree.

Self-taught and professional training

Continuing Professional Development, Software / Mobile Development

Activities and societies: Lead instructor for Amplitudo’s iOS course (2021-2022); continuous mentoring and skill development in Swift, Objective-C, Kotlin, Flutter, and related technologies.

Ongoing self-directed study and professional development in mobile and software development, including mentoring others and instructor experience.