Andrei
Ponomarenko
Senior iOS Engineer
Building iOS apps used by millions. 8+ years in product development, from Wildberries to own AI products.
// section 01
About me
iOS engineer with 8 years of experience — from startups to products with millions of users
Started with my first commercial app in 2018. Over 8 years, I grew from junior to senior — worked at major product companies (Wildberries, ecom.tech, Zen), built apps for the US market, and launched my own products.
Specialise in iOS: Swift, UIKit, SwiftUI, offline-first architecture, performance optimisation. Also growing in full-stack — Next.js, TypeScript, AI integrations.
Some projects are under NDA — details available on request.
Mobile-first mindset
I design interfaces starting from the mobile experience — simplicity, speed, accessibility on any screen.
Clean architecture
SOLID, modularity, testability. Code that is easy to read, extend, and maintain as a team.
Performance
Profiling, render optimisation, minimal footprint. Every millisecond counts.
Cross-functional
Effective collaboration with designers, backend, and PMs. Shared language and transparent processes.
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Projects
Apps I built, shipped to the App Store, and supported alongside product teams over the years.
iOS resale module within the Wildberries ecosystem — Russia's largest e-commerce marketplace (100M+ MAU). Full cycle: product listings, order processing, buyer-seller chat. Works flawlessly even with unstable internet thanks to offline-first architecture.
100M+
ecosystem MAU
Offline-first
architecture
50+
team size
iOS Engineer. Designed offline-first architecture for orders and listings with local caching via Realm. Built complex, high-performance UIs using UIKit for large-scale user flows. Close cross-functional collaboration with PMs, backend engineers, and designers in a 50+ person team.
Next-generation business platform where AI agents automate routine work: market research, content generation, project management, analytics. Each agent is a specialist with their own role. Includes idea management, Kanban board, knowledge base, and integrations with GitHub, Telegram, YouTube, and n8n.
9
AI agents
80+
tools
4
integrations
Founder & Lead Developer. Full ownership: architecture, frontend (Next.js 16 + AI SDK v6), backend (SQLite + Drizzle ORM), AI agent system (Claude API), integrations (GitHub, Telegram, YouTube, n8n).
iOS feature development for Tonkeeper — the leading non-custodial crypto wallet in the TON ecosystem with 5M+ users. Built the new token addition screen and detailed asset screens to the high standards of a crypto-grade product.
5M+
users
TON
blockchain
Non-custodial
wallet
iOS Engineer (contract). Built new screens and UI components: token addition screen, asset detail screens. Integrated TonConnect for dApp connectivity. Used Swagger to explore backend endpoints and API data structures.
ecom.tech — High-Load E-Commerce Platform
iOS app for a major e-commerce platform focused on performance and reliability. Working with gRPC/Protobuf stack, deep UI optimization, and push notification improvements. Result — 35% UI lag reduction and 22% faster app launch.
-35%
UI lag
+22%
app launch speed
+17%
push reliability
iOS Engineer. Owned performance optimization, Notification Extension Service integration, and complex UI development. Delivered a company-wide talk promoting development best practices.
iOS development of authoring tools for Zen — one of Russia's largest content platforms (Yandex ecosystem). Support for 4+ content types, adaptive UI, deep test coverage. 13% engagement growth and 4x reduction in manual regression.
+13%
engagement
81%
test coverage
4x
less regression
iOS Developer on the authoring team. Built features for content creators, optimized screen loading speeds, expanded UI test coverage to 81%. Contributed to architectural decisions using Redux + MVVM + Coordinators.
VPNManager — VPN Infrastructure Management
Web platform for managing your own VPN servers: automatic deployment, monitoring, user and access key management. Turns a manual terminal process into a convenient dashboard with one-click operations.
One-click
server deploy
< 2 min
VPN launch
Real-time
monitoring
Founder & Full-Stack Developer. Architecture and full implementation: frontend dashboard, server management API, cloud provider integration, monitoring and alerting system.
SaaS product for automatic audio and video transcription powered by AI. Converts voice recordings, podcasts, interviews, and meetings into structured text in seconds. Support for 50+ languages, speaker diarization, summarization, multi-format export.
50+
languages
95%+
accuracy
< 3 min
per hour of audio
Founder & Full-Stack Developer. Designed the architecture, built the frontend with Next.js + TypeScript, backend with AI API integration (Whisper, Claude), billing system, and user dashboard.
MuriUm — iOS Product Development
iOS app development at a product company. 11 months of full-cycle iOS development focused on code quality and user experience. Full cycle — from design to App Store.
11
months of dev
Full-cycle
idea to Store
iOS Developer. Full development cycle — from design to App Store.
Chicago Logistics — Logistics Management Platform
iOS app for a US-based logistics company. Real-time cargo tracking, routing, and delivery management. 1.5+ years of development for the US market — experience with international teams and American business standards.
1.5+
years of dev
US
market
Real-time
cargo tracking
iOS App Developer. Full-cycle mobile app development for a logistics platform. Working with MapKit, CoreLocation, real-time updates. International team and US market experience.
First commercial iOS project, 2 years of development in Moscow. Where the iOS career began — from junior to confident mid-level. Full-cycle experience: development, testing, publishing.
2
years of dev
Junior → Mid
growth
iOS App Developer. First full-scale commercial iOS development experience.
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Work experience
iOS Engineer
Wildberries
Resale module inside the marketplace. Offline-first architecture, 100M+ ecosystem MAU.
- Designed offline-first architecture for the resale module
- Integration into the 100M+ MAU ecosystem
- Data sync and caching optimisation
iOS Engineer
ecom.tech
High-load e-commerce platform. UI lag reduced by 35%, launch time improved by 22%.
- 35% UI lag reduction through render optimisation
- 22% faster cold app launch
- Modular architecture rollout for scalability
iOS Developer
Zen (Yandex)
Content platform authoring tools. 13% engagement growth, 81% test coverage.
- 13% author engagement growth
- Unit test coverage up to 81%
- Content creator tooling development
iOS Developer
MuriUm
Product iOS development. Full cycle from design to App Store.
- Full development cycle: from idea to App Store
- Architecture design from scratch
iOS Developer
Chicago Logistics
Logistics platform for the US market. Real-time tracking, MapKit, international team.
- Real-time cargo tracking with MapKit
- Work in a distributed international team
- REST API integration with logistics services
iOS Developer
Fabuza
First commercial project. Growth from Junior to Mid-level in 2 years.
- First commercial App Store release
- Growth from Junior to Mid-level in 2 years
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Skills & technologies
// iOS Development
// Architecture
// Full Stack
Languages
Frameworks
Tools
Testing
Backend
AI