Олександр

Oleksandr Oliynyk CV-2024

iOS Developer Contacts

iOS Developer with 4 years of specialized experience, including nearly 3 years in commercial roles Telegram

focused on social networking, fitness/health, and utility applications. I have a proven track record of
Gmail
creating high-performance, user-centric mobile apps that deliver seamless experiences. My expertise

Linkedin
spans the entire iOS development lifecycle, from concept to deployment, emphasizing clean,

maintainable code and optimized performance.
[open contact info](look above in the "contact info" section)

Through my commercial experience, I’ve developed strong skills in cross-functional collaboration,
Ukraine, Kyiv

consistently meeting tight deadlines and delivering exceptional results. I am passionate about

continuous learning and innovation, always seeking ways to push the boundaries of iOS development. I

aim to contribute to projects that make a difference in the marketplace, delivering efficient and enjoyable
Languages
user experiences that stand out

Ukrainian - Native

English - B2

Experience

Skills
Codble - iOS Engineer May 2024 - Present

Swift
Took full responsibility for architectural design, feature prioritization, and code quality, ensuring

UIKit / SwiftUI
alignment with best practices and efficient performance throughout development.

Combine
Worked hand-in-hand with product managers, designers, and QA teams to refine and optimize

features, directly contributing to user engagement and satisfaction through a unified development MVC / MVP / MVVM / MVVM-C / VIPER

approach.
SOLID / OOP / KISS / DRY

Implemented modularized SwiftUI components and leveraged MVVM patterns, ensuring ease of
RESTful API / Alamofire / URLSession

feature extension, code reuse, and maintainability across multiple app updates.
Firebase tools

Utilized agile methodologies to structure development timelines, proactively identified and
AVFoundation
addressed potential bottlenecks, and consistently delivered polished releases on schedule.

Realm / CoreData

SPM / CocoaPods / Carthage

Accentico - iOS Developer Jun 2023 - Sep 2024
CI/CD

Played a key role in feature planning and prioritization, ensuring each release met strategic goals and GCD/ARC

enhanced the app’s functionality and user engagement.
Git / Git H
ub / GitLab

Leveraged tools like Jira and Git for efficient task tracking and code reviews, ensuring smooth
Push Notifications / APNs

communication and quality output throughout each sprint.
In-App Purchases

Adapted to diverse cultural perspectives and remote collaboration tools, enhancing productivity and
Problem Definition
fostering a cohesive team environment.

Critical Thinking
Created sophisticated UI elements and seamless transitions, balancing UIKit and SwiftUI for optimal
Knowledge of Guidelines
performance and aesthetic coherence across various screen sizes and orientations.

4K-Soft - iOS Developer Jul 2022 - Jun 2023 Toolkit

Successfully integrated and optimized In-App Purchases and Push Notifications, achieving a
Xcode
measurable increase in revenue by X% and boosting monthly active users through targeted

Figma
engagement strategies.

Postman / Swagger
Established a streamlined development workflow, facilitating clear communication between design

and backend teams to reduce integration time and minimize bugs. Notion

Sourcetree
Instituted code review standards and automated testing, which significantly reduced bug frequency

and improved team velocity, enabling faster project turnarounds. Jira/Trello

Maintained adherence to SOLID principles and best practices, ensuring that code was scalable, easy

to maintain, and conducive to future expansion.

Education

Kyiv Polytechnic Institute 2021 - Present

126 Information systems and technologies