Case Studies
Leather wallet rebrand and shipped the first mobile app.
Worked on the Hiro → Leather rebrand as a core team member — monorepo, Panda UI component library, and BIP39 mnemonic validation. Managed the end-to-end launch of the Leather mobile app from scratch in React Native. Hit 1,850+ MAU in three months; extension serves 8,400+ MAU.
View case studyRebuilt a crypto trading-automation tool.
Cryptowatch served millions of traders across 25 exchanges and 4,000+ markets. I took over Coderunner from another engineer and rebuilt its frontend — replacing JSON-schema forms with a custom form generator, working alongside a backend dev. Also shipped the multi-exchange trading form, cockpit redesign, and leverage slider for the wider platform.
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At the forefront of Bitcoin wallet tech — back in 2017.
At a Bitcoin custody company serving 1.5M+ customers, I designed the full-stack React, Next.js and Express blueprint adopted as the company standard, and built CI/CD and E2E testing from the ground up. Completed private blockchain training with Andreas Antonopoulos and Jimmy Song.
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Led Web3 wallet integration into a rebranded DeFi platform.
Layer 2 institutional custodian protocol for private-key management. As lead frontend developer, I drove the Web3 wallet integration (MetaMask, WalletConnect) into the rebranded UI — React, Redux Toolkit — plus a Node.js parser that turns raw ETH transactions into human-readable history for compliance teams.
View case studyProjects
A self-custodial cross-chain portfolio terminal.
Track balances, allocation and activity across Bitcoin, Ethereum, Solana and Stacks in one view — connect a wallet or watch any address. Computed entirely client-side from public RPCs. No backend, no accounts, custom SVG charts.
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A real-time Fantasy Premier League product, built solo.
A faster, calmer alternative to the incumbent live-rank trackers — edge-served from Cloudflare with Durable Objects, tested like a team product, and built by steering AI across architecture, infra, design and ops.
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This site — an Astro PWA with build-time on-chain data.
The portfolio you're reading. Astro, static-rendered and offline-capable, with a live GitHub contribution graph and a Solana-NFT avatar both fetched at build time — real and current, at zero runtime cost.
View sourceOpen source
@pete-watters on GitHub →Contribution activity
- Pull requests
- 490
- Code reviews
- 454
- Commits
- 735
Landmark contributions
Resume 2014 → 2026
- Trust MachinesSenior Frontend Engineer Leather wallet · rebrand · mobile · AI workflowJul 2023 — Present
- QredoSenior Frontend Engineer Institutional DeFi · MetaMask · WalletConnectJan — Jun 2023
- KrakenSenior Frontend Engineer Trading terminal · Coderunner · Codebashing championAug 2020 — Nov 2022
- XapoSenior Frontend Engineer Architecture standard · CI/CD · 1.5M customersNov 2017 — Apr 2020
- Bank of AmericaSenior Frontend Engineer Investment tracking · TDD/BDD · Python/DjangoMay — Oct 2017
- RocksteadyLead JavaScript Developer Rescued failing app · first stable release in 7 monthsApr 2016 — Mar 2017
- KontainersFull-Stack Developer Seed-stage · inception to production · acquired by DescartesJun 2015 — Apr 2016
- FidelityUX Developer Offshore team lead · R&D accreditationJun 2014 — Jun 2015
- EarlierYahoo! · eSpatial · The Now Factory · IBM · HP From graduate to senior, building front-ends for enterprise2006 — 2014
Contact
Contact me at hello@petewatters.ie, or find me on GitHub, X, or LinkedIn.