Available for freelance

Senior iOS Engineer AI Efficiency · Team Lead

I build scalable native iOS products and lead mobile teams. With 10+ years of experience, I focus on clean architecture, AI-assisted development workflows, and reliable product delivery.

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Expertise

Where I can help.

I partner with teams to scale their mobile products, streamline development processes, and clarify their technical roadmap.

Senior iOS Delivery

Hands-on Swift and SwiftUI implementation. I favor modular, testable architectures that reduce risk, ensuring stable releases and scalable product growth.

  • Swift & SwiftUI
  • Hexagonal Architecture
  • CI/CD & Fastlane
  • App Optimization

AI-Assisted Workflows

I integrate agentic AI development into the mobile stack to accelerate feature delivery, automate repetitive tasks, and enforce consistent code quality.

  • Agentic Workflows
  • AI Code Reviews
  • Automation
  • Tooling

Engineering Leadership

I guide mobile teams through roadmap planning, clear prioritization, and stakeholder alignment. I step into interim roles to unblock and scale delivery.

  • Interim Management
  • Roadmap Execution
  • Stakeholder Alignment
  • Mentoring
Experience

Professional track record.

Senior iOS Engineer

Trainline
2022 — Now

Driving iOS journeys for a travel platform serving 150M+ travelers. Focused on scalable architecture, agentic workflows, and team leadership.

  • Served as interim Engineering Manager for a 6 engineers team, restoring delivery structure and unblocking feature releases through clear prioritization.
  • Achieved 80% automation improvement for new supplier support by modernizing integration paths.
  • Introduced agentic AI workflows into the iOS stack, significantly accelerating delivery while enforcing consistent coding standards.
  • Revamped critical flows with product and design, leveraging Hexagonal architecture and SwiftUI.
SwiftUIHexagonal ArchitectureTeam LeadershipAgentic AIA/B Testing

iOS Engineer

LALALAB
2020 — 2022

Core contributor to a consumer photo-printing app used by 4M customers. Focused on high-conversion checkout and robust product creation features.

  • Redesigned the entire checkout and payment flow, increasing conversion rate by 28%.
  • Architected a reusable, pixel-perfect product creation system that drastically reduced QA cycles.
  • Integrated Sign in with Apple (SIWA), leading to its adoption by 40% of new users.
SwiftMVVMCheckout OptimizationFastlaneFirebase

Software Engineer

Frianbiz
2019 — 2020

Built robust iOS and web projects with a focus on real-time features and remote telemetry.

  • Architected a real-time Socket.IO communication system for live interactions.
  • Delivered a custom telemetry dashboard for distributed IoT devices.
iOSVIPERSocket.IORealmDBAngular
Background

Education & writing.

Selected Writing

Education

  • Engineering Degree — Computer Science

    Hassania School of Public Works (EHTP)

    2015 — 2018

  • Preparatory Classes — Math & Physics

    Ibn Taymiya

    2013 — 2015

Available for freelance

Let's build something great.

If you're looking for a senior iOS engineer to own delivery, improve your mobile architecture, or guide your team through a critical roadmap, I'd love to hear from you.

Email me
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© 2026 Mohamed Derkaoui