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Eugenio Depalo

Staff Software Engineer

London, UK

Technical leader with 10+ years architecting scalable systems and enabling high-performing engineering teams across e-commerce, enterprise platforms, and distributed systems.

Proven track record of translating complex business requirements into robust technical solutions while mentoring engineers, driving architectural excellence, and delivering measurable business impact through strategic technical decisions.

Technical Leadership

Architecture & Decision Making

  • Led large-scale architectural transformations across monolithic and distributed systems
  • Established technical standards and best practices across multiple engineering teams
  • Experience making build-vs-buy decisions for critical infrastructure components

Team Enablement & Mentorship

  • Mentored engineers across different seniority levels, with 5 direct promotions
  • Created technical onboarding programs reducing ramp-up time by 40%
  • Led technical design reviews and established code quality standards

Cross-functional Collaboration

  • Partner with Product, Design, and Business stakeholders on technical roadmaps
  • Translate business requirements into scalable technical architectures
  • Experience presenting technical decisions to executive leadership

Work Experience

Reward Gateway

2024 - present

Staff Software 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 developer experience
  • 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

Freelance

2015 - 2022

Senior Full-stack/Frontend Developer (Contract)

Technologies used

  • React
  • TypeScript
  • Ember.js
  • Ruby on Rails
  • Node.js
  • GraphQL
  • Redux
  • Firebase
  • AWS
  • WebRTC

Key achievements

  • Delivered successful contract engagements across diverse industries including EdTech (Zapnito), FinTech (Smart Pension), Energy (British Gas), SaaS platforms (Kayako, Featurist), and Health & Safety (SafetyToolbox)
  • Architected and implemented scalable video conferencing solutions using WebRTC and Twilio, reducing third-party costs while supporting thousands of concurrent users
  • Led critical frontend migrations and component library implementations, including cross-team Bootstrap migration strategy that enabled incremental adoption without service disruption
  • Established automated deployment pipelines and modern development practices, improving release frequency from weekly to daily and reducing deployment failures by 90%
  • Consistently delivered 40-80% performance improvements across platforms through architectural optimization and modern framework adoption

AlphaSights

2014 - 2015

Senior Frontend Developer

Technologies used

  • Rails
  • Ember.js

Key achievements

  • Designed and developed a reusable data grid component handling 50,000+ records with virtual scrolling and real-time updates, improving data analysis workflows for research teams
  • Led architecture and implementation of dashboard redesign using Ember.js, improving page load performance by 50% and user task completion rates by 30%

Listora

2014

Frontend Developer

Technologies used

  • AngularJS
  • Firebase
  • Clojure

Key achievements

  • Architected real-time event creation system using Firebase and AngularJS, enabling collaborative event planning with live updates and supporting 1000+ concurrent users

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 10x customer growth while maintaining 99.9% uptime
  • Architected and implemented custom SSO authentication system that enabled enterprise client adoption, increasing B2B revenue by 200% and supporting integration with 15+ enterprise identity providers