Anton Krasilnikov

Senior

Registration: 17.07.2026

Specialization: iOS Software Engineer

— Lead iOS Engineer with 13+ years of experience building mobile applications from MVP to large-scale products with millions of users. — I specialize in real-time systems, high-load applications, and complex client-server architectures. Key experience: — Real-time systems supporting 100,000+ concurrent users. — TCP-based networking with custom encryption for low-latency communication. — Animation-heavy interfaces using Core Animation and Lottie. — Cross-platform development with shared core logic. Technical leadership: — Migrated architecture from MVC to VIPER. — Transitioned codebase from Objective-C to Swift. — Continuously improved performance and stability under high load. — Designed and evolved client-server communication protocols. Product impact: — Contributed to product decisions that improved user engagement and monetization. — Collaborated closely with cross-functional teams. — Mentored engineers and supported team growth. Notable project: — Built iOS client for a live trivia game with synchronized real-time streams (RTCP video, gameplay events, group chat). — Scaled system to 100,000+ concurrent users. Tech focus: — Swift, Combine, UIKit, SwiftUI, Core Animation, Networking, TCP sockets, Multithreading, Real-time systems, Scalable architectures.

Portfolio

Word Masters: Search Puzzles

● I was responsible for the entire iOS client and cross-platform core SDK written in C.

Words of Clans

● I was responsible for the entire iOS client and cross-platform core SDK written in C.

Real-time live trivia game (similar to HQ Trivia)

● I was responsible for the entire iOS client.

Skills

Swift

Objective-C

SwiftUI

UIKit

CoreGraphics

WebSockets

AVFoundation

CFNetwork

REST API

VIPER

MVVM

MVC

Concurrency

Lottie

C++

OpenGL

Git

Xcode

CI/CD

Core Animation

Real-time systems

Work experience

Senior iOS Software Engineer

since 11.2012 - Till the present day |Incrdbl Mobile Entertainment

Swift, Objective-C, C, SwiftUI, UIKit, CoreGraphics, WebSockets, RTSP over UDP, OpenGL, AVFoundation, CFNetwork, Lottie, Core Animation

● Developed the entire iOS client for a real-time live trivia game (100k+ concurrent players) from scratch. ● Participated in the design of client-server protocols for real-time gameplay events. ● Implemented synchronization mechanisms for multiple real-time data streams (video, gameplay events, group chat). ● Ensured stable client performance under high concurrency and low latency constraints. ● Developed iOS features for Citifox AR City Guide — interactive city exploration with augmented reality navigation. ● Implemented AR functionality allowing users to identify nearby landmarks through the camera view. ● Implemented the entire iOS client for Word Masters — a multiplayer word puzzle game reaching #1 top-grossing in Russia. ● Designed and maintained cross-platform core gameplay logic in C (iOS, Android, and HTML clients). ● Led architecture migration from MVC to VIPER and language transition from Objective-C to Swift. ● Designed and implemented an animation system supporting scripted, frame, and Lottie animations. ● Implemented an internal A/B experimentation framework for rapid testing of gameplay and product hypotheses. ● Led full iOS development lifecycle for Infome — business social platform with recommendation-driven discovery. ● Contributed to product decisions that improved user engagement and monetization metrics.

iOS Software Engineer

02.2010 - 11.2012 |MERA

C, C++, OpenGL, Objective-C

● Conducted UX research and prototyped interaction concepts for mobile navigation. ● Developed MVP implementations to validate UX hypotheses for a 3D mobile mapping service. ● Contributed to performance optimization of the rendering engine.

Educational background

Physics (Masters Degree)

2002 - 2008

Lobachevsky State University of Nizhniy Novgorod

Languages

EnglishAdvancedRussianNativeSpanishElementary