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Denis Bystruev

AI-First Staff iOS Engineer | Tech Lead | Swift & SwiftUI | Agents | Docker & CI/CD | Ex-Apple, IBM, Intel, Yandex

San José, Costa Rica | Remote-first
+506 6481-8617 | dbystruev@me.com
linkedin.com/in/denisbystruev

Portrait of Denis Bystruev

About

  • 20+ years in Software Engineering & Tech Leadership.
  • 8+ years focused on Native iOS (Swift, SwiftUI, Combine, Objective-C, XCTest).
  • Claude Opus 5.5 Max, GPT 6 Astra Max, Google Gemini Vertex AI, RAG, custom Python/Node.

Experience

AI-First Lead iOS Engineer / Tech Lead
flaired | Palo Alto, California, United States (Remote) | Sep 2024 – Present
  • B2B SaaS with generative AI for thematic corporate avatars and fashion commerce.
  • AI-assisted Mobile Architecture: Architected and developed a native AI-driven iOS application (SwiftUI/Combine) with complex backend synchronization.
  • Agentic Workflows: Designed serverless AI containers (Docker) and multi-agent systems to integrate LLM models into product logic.
  • Automated CI/CD with Fastlane/Bash pipelines for App Store and TestFlight deployments.
  • Technologies: Swift, SwiftUI, Combine, Firebase, Python, Docker, LLMs.
Senior iOS Engineer / Mobile Tech Lead
Yandex / Supergenia | Belgrade, Serbia / Tbilisi, Georgia (On-site) | Jan 2023 – Jan 2024
  • Directed the full mobile development lifecycle for complex Yandex advertising SDK.
  • Optimized mobile SDK performance, profiled memory usage for high-load environments, and implemented decoupled architectures.
Senior iOS Developer
TekWear | Tbilisi, Georgia (Hybrid) | Jun 2022 – Jan 2023
  • Developed the AgVoice native iOS application.
  • Replaced standard Apple Speech with Cobalt Speech framework.
  • Coordinated iOS team workflows and established strict code review processes.
Head of Mobile Engineering / Tech Lead
Concept Group & Get Outfit | St Petersburg City, Russia (On-site) | May 2019 – May 2022
  • Bootstrapped an internal recommendation platform ('Netflix for Fashion') from 0 to 100K+ users, leading to successful acquisition.
  • Cross-functional Leadership: Led native iOS development and managed cross-functional teams (Agile/Scrum).
  • System Design: Designed the platform's core architecture, unifying native iOS interfaces with a high-load PostgreSQL/PostgREST backend.
Head of iOS Developer Programs (Education)
Apple | Moscow, Russia | Sep 2011 – Jan 2017
  • Managed the deployment of Apple infrastructure and iOS development ecosystems across enterprise and educational institutions.
  • Scaled the iOS Developer University program across Russia and led a team of certified Apple trainers for the 'App Development with Swift' initiative.
Enterprise Solutions Architect / Technical Lead
IBM & Intel | Swindon, UK / Moscow, Russia (On-site) | Feb 1996 – Sep 2011
  • Managed large-scale enterprise IT infrastructure deployments and complex software integrations for public sector ecosystems.
  • Collaborated directly with independent software vendors (ISVs) to optimize software architectures and ensure seamless hardware-software alignment for upcoming enterprise platforms.
  • Technologies: Enterprise Architecture, B2B Integrations, System Optimization, IT Infrastructure.

Education

Lomonosov Moscow State University (MSU)
Masters, Applied Mathematics | 1990 – 1995
  • Diploma on inductive automaton: a quasi-biological neural system inspired by L.B. Emelyanov-Yaroslavsky's Intelligent Quasi-Biological System (Inductive Automaton).

Licenses & Certifications