Pietro

Pietro Ruy Pugliesi

Senior iOS Tech Lead | Pinterest | AI-Augmented Engineering

Senior iOS Tech Lead at Pinterest (450M+ MAU), 8+ years scaling mobile apps in remote-first orgs. Leading the second phase of the Objective-C → Swift/MVVM migration in the main app; led the first phase as acting tech lead while the lead was on PTO. AI-augmented daily (Claude Code, Cursor, Claude, GPT Codex) to accelerate code review, testing, refactor, ticket writing and migrations. Based in Santos, Brazil. Fluent English (C1/C2).

Get in touchLinkedIn
Santos, SP
Pietro Ruy Pugliesi
450M+
Monthly active users
7+
Years of experience
60→85%
Test coverage
100+
PRs reviewed

Experience

A career focused on native iOS, architecture modernization, and technical mentorship at scale.

P

Pinterest

Senior iOS Tech Lead

Sep 2023 — Present

Second-in-command of a 5-person iOS team on the main app (450M+ MAU), driving critical architecture modernization initiatives.

  • Acting tech lead of the migration team while the lead was on PTO: owned planning, code reviews and stakeholder alignment without slipping delivery.
  • Delivered the first project of the Objective-C → Swift/MVVM migration; currently leading the second, sustaining modernization cadence.
  • Reimplemented core features (Updates, Comments, Home) serving 450M+ monthly users.
  • Drive a daily AI-augmented workflow (Claude Code, Cursor, Claude, GPT Codex) for code review, test generation, legacy refactor, Jira ticket writing and Obj-C → Swift migrations — turning week-long cycles into days.
  • Reviewed 100+ team PRs/month, acting as architecture reference for the squad.
  • Established a remote mentorship program with weekly office hours — onboarding dropped from ~3 months to ~6 weeks.
  • Raised unit test coverage from 60% to 85% in the team's scope.
  • Shipped WCAG 2.1 AA-compliant features, improving accessibility for assistive-tech users.
  • Consistently rated above bar in performance cycles for 3 years.
SwiftObjective-CSwiftUIUIKitMVVMCombineAsync/AwaitTexture (AsyncDisplayKit)Snapshot TestingBuildkiteClaude CodeCursor
I

Instituto de Pesquisas Eldorado

iOS Developer

2020 — Sep 2023

iOS app development and introduction of team quality practices.

  • Built and shipped WEMOB (electric mobility) and Márcio Atalla (fitness/health) apps.
  • Introduced code review, junior mentoring and structured onboarding.
  • Implemented CI/CD pipelines with Fastlane, GitLab CI and TestFlight.
SwiftUIUIKitCombineAsync/AwaitRESTGraphQLFastlane

Skills

iOS

SwiftObjective-CSwiftUIUIKitCombineAsync/AwaitTexture (AsyncDisplayKit)

AI-Augmented Engineering

Claude CodeCursorClaudeGPT CodexAI-assisted code review, testing, refactor and migrationsPrompt engineering applied to software engineering

Architecture & Quality

MVVMClean ArchitectureSOLIDTDDXCTestSnapshot TestingCode Review Leadership

Tooling & DevOps

XcodeBuildkiteFastlaneGitHub ActionsGitLab CITestFlightSwift Package Manager

Accessibility

VoiceOverDynamic TypeWCAG 2.1 AAApple HIG

Remote Leadership

Technical mentoringDistributed teamsOnboarding programsAsync-first culture

Projects

EPUB/PDF → MP3 Audiobook Converter

Full-stack converter from e-books to MP3 audiobooks, built in continuous partnership with Claude Code (planning, implementation, testing, refactor).

PythonFastAPIReactTypeScriptClaude Code
View project

Breviary App

iOS app with legacy version support and automated CI/CD.

SwiftUIKitCI/CD
View project

Education

2018 — 2022

Bachelor's Degree

Computer Engineering

UNICAMP

2018 — 2020

Official Apple program — Student and Resident

iOS Development

Apple Developer Academy (Eldorado/Campinas)

  • Intensive training in Swift, UIKit, SwiftUI and product-oriented development.
  • 5+ iOS apps from prototype to MVP following HIG.
  • Promoted to Resident, mentoring incoming students.
Languages:Portuguese (native) · English (C1/C2)

Let's talk

Open to new opportunities and conversations about iOS, architecture, and software engineering.

pietroruypugliesi@gmail.comLinkedIn+55 (13) 98225-3655