Олексій

Oleksii Zamsh
Senior iOS Developer
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Ukraine, Dnipro

Summary
Results-oriented Senior iOS Developer with a solid foundation in application architecture and performance optimization,
achieving significant improvements in app responsiveness. Expert in unit testing and code reviews, ensuring adherence to
best practices and software standards. Thrives in fast-paced, Agile teams, fostering collaboration for seamless project
execution. Eager to contribute technical expertise and a commitment to excellence in every project.

Experience
Senior iOS Developer Jan 2022 - Apr 2025
Welltech Kyiv, UA, Ukraine

Designed and developed high-performance iOS applications using Swift, enhancing user experience and engagement.
Managed the development and execution of unit tests to ensure software quality and functionality.
Collaborated with cross-functional teams to define, design, and ship new features in a fast-paced environment.
Conducted comprehensive code reviews to ensure best practices in software development and maintain high-quality
code standards.
Participated in Agile development processes, contributing to sprint planning and retrospectives to improve team
productivity.
Maintained application stability, fixed crashes, and reduced tech debt.
Supported team members in identifying and implementing high-quality technical solutions.

Senior iOS Developer Aug 2020 - Dec 2021
CoreWillSoft Dnipro, Ukraine

Developed and implemented applications in the security and access control domain with unit, integration, and snapshot
tests coverage.
Researched vendor-specific NFC protocols and built an SDK to facilitate communication between the mobile application
and NFC-enabled cards.
Developed the app for access control via Bluetooth.

Senior iOS Developer Feb 2019 - Mar 2020
OneGlobus Dnipro, Ukraine

Worked in a team of three iOS developers on a social marketplace startup. Actively participated in backlog grooming and
sprint planning. Implemented rapidly evolving functionality with high-quality and well-tested code. Worked with
technologies such as Swift, WebRTC, IGListKit, RxSwift, RxCocoa, SnapKit, Moya, CouchbaseLite, Nimble, SwiftLint,
Sourcery, Bitrise, Fastlane, and RouteComposer.

Middle iOS Developer Feb 2016 - Oct 2018
Techery Dnipro, Ukraine

Worked in a team of six iOS developers developing an app for a large number of users in the travel and tourism industry.
Participated in planning, discussions, and code reviews with other team members.
Studied technologies such as Swift and reactive programming (ReactiveCocoa).
Middle iOS Developer Nov 2014 - May 2015
Cleveroad Inc. Dnipro, Ukraine

Developed various applications in Objective-C, such as social networks, audio and video streaming for exercises
(WebRTC, C++), and travel and tourism applications.

Junior iOS Developer Nov 2011 - Nov 2015
Mobindustry Corp. Dnipro, Ukraine

Studied Objective-C and implemented applications related to social networks, photo editing, utilities, and entertainment.

Education
Computer Technologies - Master of Science (MS)
National Mining University
2007 - 2012 Dnipro, Ukraine

Skills
Swift Unit Testing Application
Expert Expert Architecture Expert

Continuous Communication Performance
Integration Advanced Advanced Optimization Expert

Problem Solving Code Review
Advanced Expert

Languages
Ukrainian English
Native Intermediate