Denis Efremov

DE

Looking for a job

Denis Efremov

@denisefremov

Innovative iOS Developer with over 8 years of experience.

What I'm looking for

I am looking for a role that fosters innovation and collaboration, where I can leverage my skills in iOS development and contribute to impactful projects.

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

CI

Current

Architect / Senior iOS Developer

Current

12712423 CANADA INC

Jun 2023 - Present (3 years)

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.

SwiftUI Combine Vapor AWS Fastlane GitHub Actions CI CD PostgreSQL Agile

HS

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.

iOS Development QR Code Integration Zelle API Agile Localization REST APIs Swift UIKit XCTest XCUITest

FL

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.

iOS Development RESTful APIs CI CD XCode BASH Adobe XD Unit Testing UI Testing Swift Agile

FS

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.

WebRTC iOS Development Android Development AVFoundation CallKit SceneKit C++Xamarin Swift

LI

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.

iOS Development ASP.NET MVC WCF MyeHealth Software Development Agile Swift Unit Testing

FR

Senior PHP Developer

Freightopolis

Worked on touch-interactive kiosk systems and backend services using C++, PHP, ActionScript, Flash, and more.

PHP C++ActionScript Flash Backend Development Kiosks Software Development Agile Team Collaboration

ES

Senior Developer

E-Port Systems

Worked on touch-interactive kiosk systems and backend services using C++, PHP, ActionScript, Flash, and more.

C++PHP ActionScript Flash Backend Development Kiosks Software Development Agile Team Collaboration

Education

Degrees, certifications, and relevant coursework

BC

BCIT

Diploma, Computer Systems Technology

2000 - 2002

UU

Ural Federal University

Master, Engineering Physics

1989 - 1995

IT

Illinois Institute of Technology

Master, Data Science

2024 -

Tech stack

Software and tools used professionally

Availability

Looking for a job

Location

Canada

Authorized to work in

Salary expectations

100k-160k USD

Job categories

Skills

Swift SwiftUI Combine UIKit Core ML MVVM XCode GraphQL RESTful APIs Databases

Interested in hiring Denis?

You can contact Denis and 90k+ other talented remote workers on Himalayas.

People also viewed

View all talent

Find your dream job

Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!