Senior Mobile / SDK Engineer (Flutter/Dart • Swift/Kotlin) — Web3 / Payments / DevTools

• Location: Spain (Remote, EU-friendly time zones)
• Email: [email protected]
• LinkedIn: https://www.linkedin.com/in/alfredorinaudo/
• GitHub: https://github.com/quetool

Senior mobile engineer specialized in Flutter SDKs, developer experience, and cross-platform communication. I build production-grade SDKs that are easy to integrate, hard to break, and pleasant to maintain—covering API design, CI/CD, release hygiene, and multi-chain transaction/signing flows. Strong background in native iOS/Android and deep experience bridging Rust ↔ mobile using FFI/UniFFI.

• SDK builder mindset: I optimize for integrators—clean APIs, backwards compatibility, clear migrations, and excellent docs.
• Cross-platform depth: Flutter + native iOS/Android + Rust primitives and bindings (performance + safety).
• Release + reliability ownership: CI/CD, multi-package releases, reproducible builds, publishing workflows, and observability hygiene.
• Web3 + payments reality: multi-chain signing, RPC integrations, and partner-specific flows under real-world constraints.

Mobile/SDK: Flutter, Dart, Kotlin, Swift, iOS, Android, React Native
Systems: Rust, FFI, UniFFI, Platform Channels
Web3: Wallet SDKs, signing, JSON-RPC, WalletConnect, blockchain APIs, web3dart, on_chain, eth_sig_util, bip39, bip32, pointycastle, crypto, bech32, convert Build/Release: GitHub Actions, Fastlane, CI/CD, monorepos, pub.dev publishing
Product/Delivery: API design, DX, documentation, stakeholder collaboration, iterative UX improvements

Mar 2026 – Present

• Senior Flutter Developer

Tech: Flutter, Dart, Kotlin, Swift, Rust, GitHub Actions, JSON-RPC

Sep 2023 – Feb 2026

• Maintained, developed, and shipped 9 Flutter packages in a monorepo (including WalletConnect Pay, WalletKit, AppKit, POS Client, plus core/signing infrastructure).
• Built 2 SDK sample apps from scratch: (1) a dApp showcasing AppKit; (2) a full mobile wallet showcasing WalletKit + WalletConnect Pay.
• Contributed to and maintained a low-level Rust library used across platforms; implemented Rust ↔ Dart bindings via UniFFI/FFI, and wrapped native Kotlin/Swift implementations via platform channels where appropriate.
• Owned CI/CD for multi-package releases: automated tests, artifact builds, and pub.dev publishing workflows with multi-package release orchestration.
• Designed and evolved public SDK APIs with a “clean architecture” approach: clear module boundaries, strong docs, backwards compatibility, and migration paths.
• Implemented multi-chain support and RPC integrations across EVM, Solana, Tron, Stacks, Sui, TON; worked on transaction flows, token balance discovery strategies, and signing/release hygiene.

Tech: Flutter, Dart, Kotlin, Swift, Rust, GitHub Actions, JSON-RPC

Mar 2022 – Aug 2023

• Architected and implemented new Flutter features for Cryptowatch, a production trading product.
• Tackled complex mobile engineering challenges in a high-signal team environment (quality, reliability, performance).
• In the final 2 months, focused on improving the UX/UI of the company’s flagship React Native product.
• Supported stakeholders on regulatory-driven requirements across multiple countries to keep user experience consistent.

Tech: Flutter, GraphQL, Branch.io, Firebase, Figma, Sentry, GitLab, Fastlane, ShapeUp

Jul 2021 – Mar 2022

• Senior Flutter developer for Zurich’s TDC team, building an internal product used globally by a large workforce.
• Delivered features within an enterprise environment with strong process and quality constraints.

Tech: Flutter, Microsoft Azure, Firebase, Figma, Scrum, Jenkins

Nov 2020 – Jul 2021

• Flutter / iOS developer across advanced ML-focused projects in healthcare and US banking contexts.

Tech: Flutter, AWS, Firebase, Figma, Codemagic

Mar 2017 – Aug 2020

• Established the Flutter foundations for a multi-feature consumer app (payments, chat, delivery, groceries, etc.).
• Led a small team of 3 developers, setting standards for architecture, delivery, and maintainability.

Tech: Flutter, Swift, Angular, gRPC, Laravel, Firebase/Crashlytics/Analytics, Fastlane, Atlassian suite

Jan 2016 – Mar 2017

• Main iOS developer; delivered applications to app stores and maintained release readiness.

Feb 2015 – Jan 2016

• Android and iOS development across client projects.

• BSc in Computer Science — University of Perugia (Italy)
• English C2 (EFSET, 2021) — https://www.efset.org/cert/4a3NAS

• GitHub personal page
• Issues opened on Flutter repo (longevity proof)
• Camera Roll Uploader package (LokaHQ)
• Reown/WalletConnect Flutter monorepo
• WalletConnect legacy repo (signing)
• WalletConnect legacy repo (dApps)
• WalletConnect legacy modal repo
• All my PRs (oldest first)

Pedro Gomes (Founder & Director, WalletConnect) — Recommendation letter available on request