Pavle M.
Principal Software Engineer - contractor
Experience
Jul 2025 - Present
5 monthsUnited States
Principal Software Engineer - contractor
Chess.com
- Implementing a new monetization and AD delivery system integrating Google Ads, Liftoff, and other networks.
- Refactoring legacy codebase to adopt a modern reactive paradigm using SwiftUI and Swift Concurrency.
- Designing and introducing scalable architecture patterns following CLEAN principles for better modularity and testability.
- Migrating dependency management from legacy package managers to Swift Package Manager (SPM) for improved maintainability.
Apr 2024 - Jul 2025
1 year 4 monthsUnited States
Principal Software Engineer
Clarivate
- Created an iOS library and IP app from scratch as a greenfield project using modern development patterns.
- Implemented a CI/CD pipeline for bi-weekly releases, reducing release overhead compared to the manual approach.
- Introduced TDD and reactive development practices (SwiftUI, concurrency, Combine), raising code quality in legacy apps.
- Established modern UX/UI guidelines, aligning design with Apple’s standards.
- Defined and enforced mobile cybersecurity practices, securing sensitive client data.
- Integrated LLM-powered features into the iOS app, enabling intelligent search and contextual content delivery, improving user efficiency and engagement.
Nov 2022 - Apr 2024
1 year 6 monthsLondon, United Kingdom
Principal Software Engineer
Ebury Partners
- Built a greenfield iOS banking app.
- Spearheaded architecture and security integration; app adoption grew from 0 to 10K users in six months.
- Replaced UIKit with SwiftUI, boosting maintainability and feature velocity.
- Introduced a multi-profile feature with a secure database, scaling support to enterprise clients.
- Streamlined releases with a Bitrise CI/CD pipeline (manual → automated).
- Enhanced app security by encrypting private keys and securing runtime environment variables.
- Interviewed, hired, and mentored new developers to expand team capacity.
Mar 2022 - Nov 2022
9 monthsAmsterdam, Netherlands
Staff Software Engineer
Tiqets
- Lead iOS Developer for a ticketing app.
- Refactored 50% of the Objective-C codebase to Swift, reducing bug reports by 80%.
- Adopted MVVM + SwiftUI, improving maintainability and UI responsiveness.
- Introduced backend-driven modular UX/UI design, increasing engagement.
- Integrated Kotlin Multiplatform, reducing duplicate iOS code by 20%.
- Automated the release process with CircleCI, cutting manual overhead.
Jan 2022 - Dec 2024
3 years Lorem ipsum dolor sit amet
Belit
- Built a medical iOS app for Horizon Europe BRAINTEASER (ALS/MS progression).
Jan 2022 - Dec 2022
1 year Lorem ipsum dolor sit amet
Product Doc
- Implemented Bluetooth communication for a wireless shopping app.
Oct 2021 - Mar 2022
6 monthsZürich, Switzerland
Senior Software Engineer
Typewise
- Built a custom keyboard extension SDK.
- Partnered with the ETH Zurich ML team on secure offline text prediction and built an SDK for client integration.
- Migrated UI to SwiftUI with MVVM, reducing memory usage by 30%.
- Collaborated on integrating AI/LLM components into the keyboard, enhancing text prediction and contextual autocorrection for end users.
Jan 2021 - Dec 2022
2 years Lorem ipsum dolor sit amet
TomTom
- Developed SDK for internal driving maps.
Sep 2020 - Oct 2021
1 year 2 monthsAmsterdam, Netherlands
Senior Software Engineer
Albelli
- Modernized app architecture by introducing modern patterns.
- Migrated the Objective-C codebase to Swift with MVVM, boosting test coverage.
- Replaced a shared third-party DB with Core Data, improving app startup by 50%.
- Transitioned React components to native, reducing render delays.
Jan 2020 - Dec 2021
2 years Lorem ipsum dolor sit amet
Capture One
- Fixed MAC bugs in the edit part of the app and refactored obj c code to swift.
Jan 2020 - Dec 2021
2 years Lorem ipsum dolor sit amet
Levi9
- Implemented SDK for e-charging stations.
Jan 2020 - Dec 2021
2 years Lorem ipsum dolor sit amet
Whoopah
- Improved architecture and resolved production issues in a shopping app.
Jan 2020 - Dec 2021
2 years Lorem ipsum dolor sit amet
eBay
- Fixed item grid logic.
Nov 2018 - Sep 2020
1 year 11 monthsCopenhagen, Denmark
Senior Software Engineer
Sprinting Software
- Lead architect for iOS apps across major Danish supermarket chains.
- Built and launched a white-label shopping app from scratch (Netto & Bilka).
- Rolled out the Netto Scan & Go app to 500+ locations.
- Defined coding standards (MVVM, VIPER, reactive programming).
- Interviewed, hired, and mentored junior developers.
- Integrated Core Bluetooth for seamless scanner connectivity in the in-store “Scan & Go” system, enabling secure, low-latency communication with barcode peripherals.
Jan 2015 - Dec 2016
2 years Lorem ipsum dolor sit amet
Khaoticen
- Led development of a secure chat app (Objective-C + cryptography) with a 6-member team.
Summary
Seasoned iOS Software Engineer with over 20 years of experience in software and mobile development.
Expert in iOS, mobile systems, and system architecture, with a proven record of modernizing legacy apps, implementing secure systems, and leading cross-functional teams.
Skilled in agile processes, mentoring engineers, and delivering CI/CD automation.
Languages
Serbian
NativeEnglish
AdvancedEducation
University of Belgrade, School of Electrical Engineering
MSc · Electrical Engineering & Computer Science · Belgrade, Serbia
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