DEDenis Efremov
@denisefremov
Innovative iOS Developer with over 8 years of experience.
CanadaWhat I'm looking for
I am a Senior iOS Developer with over 8 years of experience in building scalable and secure iOS applications. My expertise lies in Swift, SwiftUI, and Combine, and I have a strong passion for clean architecture and continuous delivery. I thrive in collaborative, international, agile teams, delivering polished apps that are used by millions globally.
Currently, I am leading the development of an AI-powered iOS app for a major Canadian retailer, where I am responsible for designing scalable architecture and CI/CD pipelines. My previous roles include developing features for HSBC's apps used by over 37 million customers and creating the Freightera iOS Booking App from scratch. I have a proven track record of integrating complex APIs and collaborating with multi-regional teams to deliver high-quality products.
Experience
Work history, roles, and key accomplishments
Architect / Senior iOS Developer
12712423 CANADA INC
Jun 2023 - Present (1 year 11 months)
Leading development of an AI-powered iOS app for a major Canadian retailer using SwiftUI, Combine, Vapor, and AWS services. Designing scalable architecture and CI/CD pipeline using Fastlane and GitHub Actions.
Senior iOS Developer
HSBC
Feb 2021 - May 2023 (2 years 3 months)
Developed features used by 37+ million global customers across HSBC UK, US, and Canada apps. Led implementation of QR Code Secure Key Device Transfer and Chinese language localization.
Senior iOS Developer
Freightera Logistics
Jan 2019 - Dec 2020 (1 year 11 months)
Designed and shipped Freightera iOS Booking App from scratch. Built RESTful Laravel API backend and custom CI/CD with Xcode + Bash scripts.
Senior Mobile Developer
Frozen Mountain Software
Jan 2017 - Jan 2019 (1 year 11 months)
Built cross-platform WebRTC applications for iOS, Android, and UWP. Integrated internal SDKs with AVFoundation, CallKit, and SceneKit.
Senior Developer
E-Port Systems
Worked on touch-interactive kiosk systems and backend services using C++, PHP, ActionScript, Flash, and more.
Senior Software Developer
LifeLabs
Apr 2014 - Dec 2016 (2 years 8 months)
Developed and maintained MyeHealth iOS app and healthcare systems. Built multiple platforms: iOS, ASP.NET MVC apps, and WCF services.
Senior PHP Developer
Freightopolis
Worked on touch-interactive kiosk systems and backend services using C++, PHP, ActionScript, Flash, and more.
Education
Degrees, certifications, and relevant coursework
BCBCIT
Diploma, Computer Systems Technology
2000 - 2002
Ural Federal University
Master, Engineering Physics
1989 - 1995
ITIllinois Institute of Technology
Master, Data Science
2024 -
Tech stack
Software and tools used professionally
Availability
Location
CanadaAuthorized to work in
Salary expectations
Job categories
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