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Eugenio Depalo

Senior Front-end Engineer

London, UK

I am a passionate engineer who thrives on solving complex architectural challenges, while continuously seeking opportunities to grow.

I value working with collaborative teams where empathy and knowledge sharing are part of the culture.

Work Experience

Reward Gateway

2024 - present

Senior Front-end Engineer

Technologies used

  • PHP
  • React
  • TypeScript
  • React Native
  • Apollo

Key achievements

  • Architected and led the transformation of a legacy monolithic PHP codebase into a scalable modular monorepo using NX, Lerna, React, TypeScript, and Apollo, reducing build times and enabling parallel development
  • Led architecture and implementation of a standalone, PCI-compliant SPA checkout system, improving conversion rates by 15% while meeting strict security requirements
  • Established team-wide technical standards and mentorship program, resulting in faster onboarding for new developers and improved DX
  • Created and maintained a token-based, cross-product design system in close collaboration with the design team, improving consistency and enabling rapid development of new features

Smart

2022 - 2023

Senior React Developer

Technologies used

  • React
  • TypeScript
  • GraphQL
  • Node.js
  • Apollo
  • Remix

Key achievements

  • Architected and implemented tenant-specific GraphQL schema abstractions that enabled scaling to many enterprise clients
  • Led development of critical Remix application features
  • Established standardized development environments using devcontainers that reduced onboarding time

Zapnito

2021 - 2022

Senior Full-stack Developer (Contract)

Technologies used

  • Ruby on Rails
  • Ember.js

Key achievements

  • Designed and implemented scalable video conferencing architecture handling many concurrent users, with advanced recording and composition features that increased platform engagement

SafetyToolbox

2020 - 2021

Senior Full-stack Developer (Contract)

Technologies used

  • Ruby
  • Ember.js

Key achievements

  • Led architectural improvements to the health and safety platform that enabled handling more concurrent users

Zapnito

2019 - 2020

Senior Full-stack Developer (Contract)

Technologies used

  • Rails
  • Ember.js

Key achievements

  • Architected and developed a scalable in-house conference system using Twilio and WebRTC that reduced third-party costs
  • Designed and implemented a real-time presence system that improved user engagement metrics

Senior Frontend Developer (Contract)

Technologies used

  • React
  • TypeScript
  • Redux
  • Bootstrap
  • Ember.js

Key achievements

  • Led cross-team migration from Materialize to Bootstrap, creating an implementation strategy that allowed incremental adoption without service disruption
  • Designed and implemented a comprehensive UI component library that accelerated development velocity across different product teams
  • Architected a scalable theming system enabling white-label solutions for enterprise clients

Senior Frontend Developer (Contract)

Technologies used

  • Ember.js

Key achievements

  • Led the architecture and development of a conversion-optimized multi-step form system
  • Designed and implemented a robust A/B testing framework that enabled data-driven UX decisions

Featurist

2017 - 2018

Senior Frontend Developer (Contract)

Technologies used

  • React
  • Redis
  • Firebase

Key achievements

  • Architected a versioning system for a collaborative editing platform using React/Redis that supported many concurrent editors
  • Led technical direction for the Scribeasy educational platform, implementing performance optimizations

Kayako

2017 - 2018

Senior Frontend Developer (Contract)

Technologies used

  • Ember.js

Key achievements

  • Designed and implemented a flexible form rendering engine that reduced development time for new customer support features

Zapnito

2016 - 2017

Senior Full-stack Developer (Contract)

Technologies used

  • Rails
  • Ember.js

Key achievements

  • Architected and implemented a scalable analytics dashboard for student progress tracking
  • Redesigned permission system that enabled granular access control

Senior Frontend Developer (Contract)

Technologies used

  • Ember.js

Key achievements

  • Redesigned and optimized performance-critical list components using ember-collection, improving rendering performance for data-heavy views with thousands of items
  • Architected reusable chat UI component system that reduced development time for new communication features
  • Led adoption of modern Ember practices and patterns across the codebase, improving developer productivity and enabling faster feature delivery

GBH Design

2015

Lead Developer (Contract)

Technologies used

  • Ember.js
  • AWS

Key achievements

  • Architected and implemented high-performance grid layouting system and client-side search engine using Lunr.js that maintained sub-100ms response times with 10,000+ items
  • Designed and developed a scalable CMS architecture with Ember/Firebase that reduced content update times from hours to minutes
  • Established automated deployment pipeline using S3, CloudFront and ember-cli-deploy that improved release frequency and reliability

AlphaSights

2014 - 2015

Senior Frontend Developer

Technologies used

  • Rails
  • Ember.js

Key achievements

  • Designed and developed a reusable data grid component
  • Led architecture and implementation of dashboard redesign using Ember.js

Listora

2014

Frontend Developer

Technologies used

  • AngularJS
  • Firebase
  • Clojure

Key achievements

  • Architected real-time event creation system using Firebase and AngularJS

Responsa

2012 - 2014

Full-stack Developer

Technologies used

  • Redis
  • jQuery
  • Postgres
  • Backbone
  • Rails

Key achievements

  • Designed and developed full-stack application architecture using Rails, PostgreSQL, and Redis that scaled to support growing customer base
  • Architected and implemented custom SSO authentication system that enabled enterprise client adoption