petewatters

Senior Frontend Engineer

Senior Frontend Engineer with over 15 years of experience leading frontend development for high-traffic fintech, crypto, and Web3 applications. Clean code practitioner, specialised in React, TypeScript, and React Native, with expertise in building scalable, user-focused solutions. Demonstrated success in major product launches, optimising engineering workflows, and promoting cross-team collaboration.


Experience: 11 years

Yearly salary: $220,000

Hourly rate: $110

Nationality: 🇮🇪 Ireland

Residency: 🇮🇪 Ireland


Experience

Senior Frontend Engineer
Qredo
2023 - 2023
Layer 2 decentralised custodian protocol for institutional private key management on a blockchain network. Directed Web3 wallet integration and developed a new institutional trading interface using React, Redux Toolkit, Material UI, and styled-components. Integrated MetaMask, WalletConnect, and WebAPI to support secure client transactions on the Qredo network. Developed a Node.js ETH transaction parser to present on-chain history in a human-readable format, improving compliance and operational transparency.
Senior Frontend Engineer
Kraken · Cryptowatch
2020 - 2022
Cryptowatch is a widely used real-time charting and trading terminal in the crypto community, acquired by Kraken and later integrated into Kraken Pro. Supported millions of active traders across 25 exchanges and over 4,000 markets. Developed the multi-exchange trading form, cockpit redesign, and custom trade table and leverage slider components for the Cryptowatch trading team. Built high-traffic, mission-critical infrastructure with direct visibility to executive leadership. Served as the sole frontend engineer on Coderunner, a greenfield trading automation tool. Delivered the complete frontend in eight months using React, TypeScript, and PostCSS with a custom dynamic form-generation system supporting consistent field types such as market picker, asset-aware amount input, and precision-aware currency handling. Initiated a Cypress E2E testing framework for Cryptowatch as a side project. Won the company-wide Codebashing security challenge in 2020, placing first for expertise in client-side vulnerabilities and OWASP mitigations.
Senior Frontend Engineer
Xapo
2017 - 2020
Fully remote global FinTech providing multi-currency digital wallets and Bitcoin custody services, serving over 1.5 million customers worldwide. Designed a full-stack application blueprint using React, Next.js, and Express, which was adopted across multiple product teams as the company standard. Led the core product squad responsible for a comprehensive web platform redesign. Built CI/CD infrastructure and E2E testing standards from the ground up, reducing manual QA overhead and accelerating release cycles. Mentored engineers on testing practices and architecture patterns. Served as a technical bar-raiser during hiring across the engineering organisation and developed the hiring process. Completed private blockchain engineering training, including live sessions with Andreas Antonopoulos and a multi-day Bitcoin programming course with Jimmy Song.
Senior Frontend Engineer
Bank of America Merrill Lynch
2017 - 2017
One of the world’s largest financial institutions with $3+ trillion in assets under management. Served as the Ember.js subject-matter expert and senior frontend engineer within a team of six, working across the stack with Python and Django to deliver investment performance tracking software. Introduced automated acceptance testing (TDD/BDD with Cucumber) to the BAML frontend workflow, establishing it as the team standard. Mentored the team and delivered a series of technical presentations to elevate team quality standards.
Lead JavaScript Developer
Motocal · Rocksteady
2016 - 2017
Web-based tool for custom decal manufacturing. Recruited to recover a failing legacy Ember.js and Fabric.js application. Delivered the first stable production release in seven months, reducing test cycle time by 70%. Designed and implemented CI/CD with automated E2E testing (Docker, Webdriver.io, CasperJS) and automated deployment using Gitflow and custom Bash scripts. Recruited and onboarded a team of two to replace the outgoing engineering team, reporting directly to the CEO and CTO.
Full-Stack Developer
Kontainers
2015 - 2016
Ocean freight platform serving major global shipping brands. Later acquired byscartes. Recruited by the co-founder and CTO to lead the frontend product from inception to production (JavaScript, Ember.js, Ruby, CI/CD), establishing the engineering culture at the seed stage.
UX Developer
Fidelity Investments
2014 - 2015
Global financial services corporation managing $11+ trillion in assets under management. Served as technical lead for an offshore development team, providing hands-on direction in the UK and India. Represented the engineering team during Enterprise Ireland R&D accreditation.

Skills

ai
architecture
bitcoin
blockchain
ci-cd
css
full-stack
javascript
open-source
typescript
front-end
english