Senior iOS Developer | Swift & SwiftUI

Serhii M

Information

Available hours \ week
40 h/w
Seniority level
Senior
Years of experience
12 yrs.
Location
Ukraine, Khmelnytskyi
Nationality
Ukraine
Timezone
(GMT+02:00) Kyiv

Languages

Ukrainian
Fluent (C2)
Russian
Fluent (C2)
English
Intermediate (B1)

About

Serhii focuses on developing high-quality iOS applications, specializing in Swift and SwiftUI with over 12 years of experience in mobile development. His work emphasizes creating user-centric interfaces and crafting seamless user experiences, evidenced by his strong background in UI/UX design. He has extensive proficiency in MVVM architecture, along with Apple Combine for reactive programming, facilitating the implementation of scalable solutions. Proficient in REST API integrations, Serhii has tackled complex challenges involving data exchanges and third-party service connectivity, contributing to various industries such as healthcare, health tech, and social services, etc. His technical toolkit also includes Core Data for local storage, as well as tools like GitHub, JIRA, and Postman for version control and API testing. Serhii holds a degree in Systems Engineering from Technological University Khmelnytskyi.

Main technologies

Additional skills

Experience

DeHealth

Add new features, bug fixes and prepare health App

About the Project

Imagine a world where billions of people benefit from a secure, personalized health profile. With the DeHealth App and Global Health ID, these individuals' medical records are unified in one accessible place - always ready, whether at home or on the go. AI-powered tools transform fragmented data into a dynamic, holistic health model, enabling proactive, informed decisions.

  • Healthcare

Responsibilities

- As a Senior iOS Developer, I was responsible for MVP development and App Store readiness. - Integrated new features and performed critical bug fixes for a health-focused B2B application. - Implemented scalable MVVM-C (Coordinator) architecture with Combine. - Finalized the MVP build and successfully prepared the app for public release. - Managed API integrations via Swagger/Postman and handled dependencies via SPM.

Skills & technologies

BBoxMouse

Remote Swift iOS Developer

About the Project

BBox Mouse is an innovative assistive technology application designed to empower individuals with disabilities by providing hands-free control of iOS devices. The solution integrates with a custom-built wearable device, featuring a specialized PCB and a 3D-printed housing, which can be mounted on the head, shoulder, or wrist. By leveraging Core Bluetooth, the app translates physical movements - such as head tilts and nods - into precise on-screen cursor actions. Additionally, it features an advanced control layer based on ARKit and SceneKit, enabling device interaction through simple eye-blink gestures. Built with SwiftUI and Combine, it ensures a high-performance, low-latency experience for digital independence.

  • HealthTech

Responsibilities

- As a Senior iOS Developer, I led the full development of the BBox Mouse app, focusing on hardware integration via Core Bluetooth (BLE). - I engineered the communication layer to establish stable connections and manage data exchange, including one-time reads and continuous polling every five seconds. - A key accomplishment was implementing logic to write custom user calibration profiles directly to the device's non-volatile memory (ROM). Using SwiftUI, Combine, and UIKit, I built a high-performance UI and a maintainable codebase. - I integrated AVFoundation for media and WKWebView for web content. - My work ensured compliance with Apple’s guidelines, resulting in a successful App Store launch and seamless software-hardware interaction.

Skills & technologies

BookGeneration

Remote Swift iOS Developer

About the Project

The Kadish application is a digital memorial platform created for the Bukharan Jewish community to preserve the memory of loved ones. Developed during COVID-19 to bypass travel restrictions, it allows users to honor deceased relatives through remote services, following the principle that "the righteous are called living even after their death." The app provides a dignified way to maintain ancestral records and facilitate traditional observances regardless of physical distance. It bridges ancient spiritual traditions with modern technology, ensuring that the legacy of family members is preserved and accessible for future generations.

  • Social Services

Responsibilities

- As a Senior iOS Developer, I was responsible for the end-to-end design and implementation of two complete mobile applications from scratch. - To ensure a modular and maintainable codebase, I applied Clean Swift (VIP) architecture across the projects. - My technical contributions included integrating complex REST APIs with Alamofire for robust networking and implementing advanced media features using the AVFoundation framework. - I leveraged Core Data for efficient local storage and used MKWeb to create seamless hybrid experiences within the native environment. - This comprehensive approach led to the successful deployment of both applications to the Apple App Store, meeting all technical requirements and quality standards.

Skills & technologies

Education

Technological University Khmelnytskyi

1999 - 2004
Systems engineer