Anton Kolchunov

Senior iOS Engineer

Avatar placeholder
Potsdam, Germany

Experience

Apr 2023 - Present
2 years 10 months

Senior iOS Engineer

HelloFresh SE

  • Spearheaded development of the Experimentation Library, starting from writing RFC towards integration and support of the feature teams
  • Spiked the possibility of using Kotlin Multiplatform for Experimentation Library to share implementation with Android
  • Designed, developed, and iteratively integrated a new Data Layer, which unblocked and improved the development speed of the feature teams
  • Organized workshop about Swift Concurrency to improve knowledge amongst iOS engineers and became a go-to person for related questions
  • Completed overhaul of the existing CI configuration to make it more maintainable by big team
  • Incorporated Bash script linter to harden CI and Utils scripts for iOS project
  • Spiked Tuist as an option to integrate modularized features with 500+
  • Maintained tooling to identify UI Tests ownership with custom Swift CLI and native SwiftLint rule
  • Provided support to other teams on uncommon architecture questions
  • Actively participated in shaping development culture within the team and across the whole iOS chapter
  • Used technologies: Swift, SwiftUI, Swift Concurrency, Swift Package Manager, Bash, Git, GitHub Actions, Bitrise
Jan 2020 - Mar 2023
3 years 3 months

Development Manager

Lightspeed Commerce Inc.

  • Led a team of up to 20 developers across multiple disciplines, locations, and squads, including iOS, Java, and React developers
  • Periodically contributed to iOS projects, including legacy product of Gastrofix
  • Actively participated in technical discussions and architecture around the iOS project
  • Helped to run iOS horizontal meetings to have a platform for knowledge sharing between iOS developers
  • Established synchronization meetings with Architects and Staff iOS Developers in different locations and timezones to effectively provide feedback to developers on ongoing initiatives
  • As a hiring manager, completed hiring of Team Lead, iOS, Java, and React developers
  • Revamped existing interview and onboarding processes for iOS, Java, and React developers to make them more efficient
  • Performed talent reviews and quarterly performance evaluations for up to 10 direct reports, including 2 Team Leads, a Principal, and Staff developers
  • Continuously participated in improving development processes, squad structure, and procedures
May 2017 - Jan 2020
2 years 9 months

Senior iOS Developer / Team Lead

Gastrofix GmbH

  • Implemented multiple features for existing application

  • Developed high-quality tender calculations module to provide errorless monetary amounts

  • Re-architectured service and data layers to enable the development of new features for hotels

  • Hardened local networking layer for communication between multiple iPads and external systems, such as Raspberry Pi-based bridges for hotel systems

  • Actively worked on transitioning CI/CD from Jenkins to GitLab CI

  • Introduced numerous best practices to the team: unit testing, code style guidelines, and knowledge sharing

  • Performed talent evaluation and provided guidance on growth to team members

  • Improved existing development processes to increase application quality and stability

  • Acted as technical product owner for the iOS project by aligning priorities, engaging project managers to provide more context to tickets, and involving developers to groom tickets

  • Revamped the interview process for the iOS developer position and performed interviews to validate technical skills

  • Prepared onboarding process for new iOS hires to effectively share knowledge with newcomers

  • Used technologies: Objective-C, Swift, Bash, Cocoa Touch, Foundation, Core Data, XCTest, Grand Central Dispatch, Appium, CocoaPods, Git, GitHub, GitLab

Dec 2011 - May 2017
5 years 6 months

Lead Developer

HyperActive Inc.

  • Designed architecture and developed from scratch iOS application with separate reusable module for synchronization with RESTful API of CMS backend
  • Took an active part in developing and improving UI/UX for iOS applications
  • Developed several AR applications to present 3D models of upcoming medical Philips equipment
  • Developed numerous iOS applications used internally by clients (Philips, St. Jude Medical, Boston Scientific, Fujifilm) or for healthcare trade shows
  • Incorporated Jenkins continuous integration to deploy internal and public builds of HyperFrame iOS applications
  • Incorporated unit tests for iOS applications
  • Developed Bash scripts for continuous integration
  • Used technologies: Objective-C, Swift, C#, Bash, GNU/Linux, UNIX, Cocoa Touch, Foundation, AVFoundation, Core Data, XCTest, Grand Central Dispatch, SQLite, metaioSDK, Xcode, Unity 3D, CocoaPods, Git, GitHub, Bitbucket
Sep 2009 - Dec 2011
2 years 4 months

iOS/OS X Developer

Freelance

  • Developed numerous applications for clients from the USA, the UK, Australia, and Russia
  • Led an iOS application development process with other iOS developers
  • Performed various tasks to support existing projects
  • Led development process, programmed and released personal project – table game for iOS
  • Used technologies: Cocoa Touch, Foundation, Core Data, Cocos2d-iPhone, SQLite, Xcode, Git, GitHub, Bitbucket
Jan 2009 - Sep 2009
9 months

Software Engineer

ZAO MCST

  • Used technologies: Bash, Git, GNU/Linux, UNIX
Dec 2005 - Dec 2008
3 years 1 month

System Administrator

ZAO ADM Service

  • Used technologies: GNU/Linux, UNIX, Windows Active Directory, Windows Server 2003

Summary

Development Manager and Software Developer with 14+ years of experience in iOS development and 4+ years of experience in people management. Degree in Engineering. Expert in Swift and Objective-C programming languages, multithreading, and software architecture. Passionate technical leader with expertise in building distributed cross-functional teams, improving development processes, and growing talent through coaching.

Skills

  • Leadership And Project Management
  • Swift And Objective-c
  • Great Attention To Details
  • Strong Technical Knowledge Of Ios/ipados
  • Critical Thinking And Creative Problem-solving
  • Ci/cd With Gitlab And Github Actions
  • Effective Communication
  • Expertise In Modern Software Architecture

Languages

Russian
Native
English
Advanced

Education

Sep 2004 - Jun 2010

Moscow State Institute of Electronics and Mathematics (Technical University)

Degree in Engineering, Flexible Manufacturing · Automation and Computer Science · Moscow, Russian Federation

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Similar Freelancers

Discover other experts with similar qualifications and experience

Thomas Stägemann
Thomas Stägemann

Rating System

View Profile
Ilker Baltaci
Ilker Baltaci

Freelance Mobile Developer

View Profile
Jörg Birkhold
Jörg Birkhold

Lead Engineer iOS / Android

View Profile
José Jeria
José Jeria

Freelance iOS Developer

View Profile
Cristian Serje reyes
Cristian Serje reyes

Team Lead Mobile Native Apps

View Profile
Pavle Mijatovic
Pavle Mijatovic

Principal Software Engineer - contractor

View Profile
Cristian Petra
Cristian Petra

iOS Team Lead

View Profile
Martin Wilhelmi
Martin Wilhelmi

Security Auditor

View Profile
Matthias Zarzecki
Matthias Zarzecki

iOS Developer

View Profile
Ramunas Jurgilas
Ramunas Jurgilas

iOS Consultant

View Profile
Andrey Sedelnikov
Andrey Sedelnikov

Technology Expert | Consultant

View Profile
Miroslav Kuťák
Miroslav Kuťák

iOS Engineer

View Profile
Jürgen Fey
Jürgen Fey

AR/VR/XR Architect

View Profile
Steven Mohr
Steven Mohr

Freelance Trainer

View Profile
Fatih Karakurt
Fatih Karakurt

Mobile App Developer

View Profile
Florian Otte
Florian Otte

Interim CTO

View Profile
Muhammad Zubair
Muhammad Zubair

Sr. Mobile Developer

View Profile
Ben Rudhart
Ben Rudhart

Senior iOS Developer

View Profile
Adam Richter
Adam Richter

Senior Software Engineer

View Profile
Axel Lilienblum
Axel Lilienblum

Strategy Consulting & Project Lead

View Profile
Thomas Hieber
Thomas Hieber

AR App

View Profile
Michael Boldasov
Michael Boldasov

Scrum Master, Project Manager

View Profile
Marcin Szalski
Marcin Szalski

Mobile / Game Developer

View Profile
James Cullimore
James Cullimore

Freelance Android Developer

View Profile
Felix Hofmann
Felix Hofmann

Product Manager

View Profile
Jürgen Hertweck
Jürgen Hertweck

iOS App Development (AI-based)

View Profile
Igor Propisnov
Igor Propisnov

Senior Frontend Developer

View Profile
Timm Preetz
Timm Preetz

Senior Backend-Framework Engineer

View Profile
Alexander Lechner
Alexander Lechner

Guest lecturer in Artificial Intelligence (Master’s Level)

View Profile
Jens Meßinger
Jens Meßinger

Fullstack Developer / Team Lead

View Profile