Alexander Naumenko

AN

Open to opportunities

Alexander Naumenko

@alexandernaumenko

I build high-performance iOS apps serving millions of users.

What I'm looking for

I'm looking to own high-impact iOS work from architecture through release, building reliable, high-performance products with modern Swift and maintainable systems.

I've built and modernized production iOS applications for Techspire, Triller, and Etihad Airways, improving startup performance, stabilizing media-heavy experiences, and delivering features used at scale.

At Techspire, I cut chat startup time from 25–30 seconds to 3–4 seconds for 700 chats and built an Apple Photos-style UIKit media grid for tens of thousands of items. At Triller, I resolved production crashes in the reels feed, helped migrate the Objective-C codebase to Swift, and built Voice Over publishing with AVFoundation.

Earlier, I built Tabor's iOS app from scratch for millions of users and designed mobile and API architecture across social, fintech, media, and courier products. I enjoy owning work from architecture through release, with a focus on performance, reliability, and maintainable code.

Experience

Work history, roles, and key accomplishments

TE

Current

Senior iOS Developer

Current

Techspire

Sep 2023 - Present (2 years 11 months)

Cut app startup time by ~7-8x for 700 chats by redesigning chat initialization. Built a reusable UIKit media grid and implemented a main-thread hang detector.

Swift UIKit SwiftUI Concurrency Performance Optimization Core Data AVFoundation Core Animation Core Graphics Metal XCTest XCUITest CI CD Bitrise Firebase Git Cursor REST APIs ASP.NET Core PostgreSQL Redis

Education

Degrees, certifications, and relevant coursework

SU

Southern Federal University

Master's Degree, Information Technologies

2010 - 2012

Master's degree in Information Technologies from Southern Federal University, Rostov-on-Don, from 2010 to 2012.

SU

Southern Federal University

Bachelor's Degree, Applied Mathematics and Informatics

2006 - 2010

Bachelor's degree in Applied Mathematics and Informatics from Southern Federal University, Rostov-on-Don, from 2006 to 2010.

Tech stack

Software and tools used professionally

PostgreSQL

.NET Core

.NET

ASP.NET Core

UIkIt

Redis

ASP.NET

Objective-C

SwiftUI

iOS

Firebase

Firebase Crashlytics

Core Data

Core Animation

Core Graphics

XCTest

Bitrise

Cursor

Availability

Open to opportunities

Location

Cyprus

Authorized to work in

Job categories

iOS Developer Mobile Software Developer Software Engineer Backend Web Developer Technical Lead iOS Developer Mobile IOS Developer iOS Development Native iOS Developer IOS Software Development IOS Mobile Development

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