DANIL CHERNIKOV

Budva

Summary

I'm iOS developer with 6 years of experience in creating mobile apps for product companies. I love bringing order to architecture, reducing technical debt, and accelerating teamwork. My strengths are attention to detail, predictable code, and a desire to make the UX truly user-friendly, as I'm.

Overview

years of professional experience

Work History

IOS Team Lead

Onix-Systems

01.2019 - Current

Participated in product development cycles, from initial estimation to development and support after release.
Developed internal projects to train new team members and introduce lightweight, and efficient solutions, that could be later integrated into projects.
Provided mentorship to junior and mid-level developers through guidance and active collaboration on projects.

Senior IOS Engineer

HAAS Automation Inc.

01.2021 - 10.2023

Developed solutions and enhanced existing systems for internal teams, while modernizing and maintaining legacy codebases.
Worked on system integrations PDF, XML, SOAP, and Paymetric technologies to support B2B payment processes.
Developed internal tools and applications using SwiftUI to internal projects and improving team productivity through new UI solutions.
Searched ways to improve maintainability by introducing architectures such as MVVM, MVP and others to increase future scalability.
Developed a unified platform that included all customer-facing services, incorporating UX improvements aligned with Apple Human Interface Guidelines, based on our team’s hands-on experience and user feedback.

Education

Software Engineering

Central Ukrainian National Technical University

01-2020

Skills

Swift programming language
Objective-C programming language
UIKit, SwiftUI frameworks
Combine
Networking (REST, SOAP, async/await)
Auto Layout, Custom UI
Git management
Multithreading and concurrency

Unit Testing
CI/CD continuous development
Design Patterns (MVC, MVVM, and so on)
Third-party API integration
StoreKit framework
Database (CoreData, Realm, Firebase)
Analytics/Crashlytics

Projects

NDA Project (Social Network)

iOS Senior Developer

Integrated a modular system, splitting the product into a native module and a web-based module.
Added new payment options and implemented a subscription system via Stripe, StoreKit, and etc.
Refactored legacy code and improved app stability, while promoting solutions to reduce technical debt.
Enhanced the existing architecture to improve scalability and maintainability through MVVM-C integration.
Configured deep and universal links for quick access to app content, referral programs, payments, and more.
Integrated CI/CD pipelines via Fastlane for solving old problem with submitting the app to App Store and Firebase for QA team.

Technologies: Swift, UIKit, Objective-C, Firebase Analytics, Fastlane, Mixpanel, Matomo, StoreKit, Stripe, REST API and so on.

Timeline