Hi, I'm Valery

I build iOS that feels instant

Senior iOS Engineer with 6+ years building high-performance products. Swift, Realtime, Graphics and FinTech.

Six years shipping across

Impact

Numbers that shipped to production.

0K+
Monthly active users on a fintech app built from scratch
0%
Crash-free users in production
+0–40%
SwiftUI rendering performance gained
0s4s
App startup time, cut in half
Experience

Where I've built.

Consumer and FinTech products where performance and realtime behaviour were the product, not a detail.

JAN 2026 — PRESENT
Korpu
Senior iOS Engineer · Remote
3D avatars & realtime social
A social networking platform for realtime communication and short-form content, for the Azerbaijan market.
  • Built a 3D avatar platform from scratch with SceneKit, RealityKit and Metal — stable 60 FPS.
  • Rebuilt core parts of the social platform — chat, stories and calls — strengthening UX consistency and scalability.
  • Shipped audio/video calling infrastructure on LiveKit, CallKit and WebSockets with low-latency stability.
  • Migrated networking to Swift Concurrency & async/await, simplifying asynchronous code.
  • Cut app startup time 8s → 4s through rendering and concurrency optimizations.
SwiftUIUIKitRedux (Flux)SceneKitRealityKitMetalLiveKitCallKit
APR 2024 — OCT 2025
PST
Senior iOS Engineer · Team Lead · Remote
Fintech banking, from zero
A FinTech startup building virtual cards, crypto top-ups and digital banking infrastructure.
  • Built the banking app from scratch — 100K+ MAU and ~18K daily transactions, supporting rapid product growth.
  • Achieved 99.98% crash-free users and reduced startup to under 3s through performance work.
  • Established engineering standards — Clean Architecture, CI/CD and testing — streamlining delivery and maintainability.
  • Led a mobile team of 3 while staying hands-on in development, improving release consistency.
SwiftUIClean ArchitectureCI/CDFastlane
MAY 2022 — APR 2024
Toranotec
iOS Engineer · Tokyo, Japan
Wealth & investment products
A Japanese FinTech and wealth-management company developing mobile investment products.
  • Increased SwiftUI rendering performance by 30–40%, reducing bottlenecks and UI latency.
  • Developed reusable SwiftUI components and modular architecture, accelerating feature delivery across projects.
  • Contributed to a scalable module architecture with SwiftUI, Combine and MVVM, simplifying parallel development.
SwiftUICombineMVVMModular Architecture
MAR 2019 — MAY 2022
Nerve.AI
iOS Engineer · Moscow
Consumer & e-commerce at scale
A software company building consumer and e-commerce mobile applications.
  • Refactored an e-commerce app with 300K+ DAU, improving runtime performance and scalability.
  • Built an iOS app from scratch as the sole iOS engineer, owning end-to-end delivery for ~50K monthly users.
Objective-CUIKitVIPERCI/CD
Deep dives

Engineering, in the open.

Long-form breakdowns of the engineering decisions behind the products I've shipped.

Selected work

Things I build for the love of it.

A living collection — new experiments land here as I ship them.

SwiftMetalSwiftUIAVAudioEngine

Metal Audio Visualizer

Real-time, GPU-driven audio visualizer for iOS. Four isolated stems play in sample-perfect sync while a single Metal shader renders a living, reactive scene — a pulsing core with 120 rotating spikes, each responding to a stem's energy at 60 FPS.

Tap Sound on to hear the stems drive the visuals.

View on GitHub
SwiftMetalSwiftUIGPUPhysics

SunFlares

A real-time Sun, rendered on an iPhone with SwiftUI and Metal — every pixel is math, recomputed 60 times a second. 16,384 GPU particles simulate the boiling convection, and eruptions fire from real solar-flare statistics, with the whole scene running at 10,000× real time.

Born from a space-weather course at Skolkovo — physics I studied, then finally built.

View on GitHub
About

Engineer by day, musician after dark.

For 6+ years I've specialized in high-performance, realtime mobile systems — from fintech platforms to 3D rendering and communication infrastructure. Performance optimization, scalable architecture and realtime systems are where I operate best, and where I've consistently delivered results that matter.

I care about products that are visually rich and technically challenging — where the hard part is invisible and the result just feels right. That's the same instinct that pulls me to music: I write my own songs and play piano, guitar and drums.

Now I'm ready for something bigger — a team and a product where that experience makes real impact at scale.

Core stack
SwiftSwiftUIUIKitMetalRealityKitSceneKitSwift ConcurrencyCombine
Craft
Clean ArchitectureModularRealtimeCI/CDWebSocketsPerformanceTech leadership
Languages
Russian — NativeEnglish — C1Spanish — A2
Off the clock

The other half of the craft.

I write and record my own music. The discipline is the same as engineering — structure, timing, and a feel you keep refining.

PianoGuitarDrums
Contact

Let's build something
worth shipping.

Open to Senior iOS roles — native mobile, realtime/fintech, performance-critical systems. Relocation and remote welcome.

masterpiece.nevzorov@gmail.com