Senior Product Engineer with 7+ years of greenfield ownership from architecture to production for European and US startups, specializing in AI-augmented development for fintech and Web3 products.
AI extraction of audited PDFs into a KPI dashboard, behind a server-first processing boundary and a 7-day extraction cache.
Greenfield Web3 youth-sports gamification COPPA-compliant MVP, featuring parental-gated passwordless auth for under-13s, shipped 40% ahead of scheduled 8-week sprint.
Led the MVP and SSR migration for a live decentralized dApp, reducing module overhead from 17k to 1k and leveraging server caching to improve TTFB by 2.5s.
Audited UI/UX to achieve strict WCAG 2.1 AA compliance and refactored the codebase to embed test-driven development (TDD) principles.
QR-code onboarding that migrated ~500k users; design token system.
Built a virtual exhibition for poor-network visitors.
Companion packages to my skills (currently private; treated as IP) shared across my repos.
Turns CSS utility classes into type-safe design tokens.
Work Experience
Tech platform facilitating 500+ placements across 21 countries.
- AI-first architecture: productised an early prototype into a production Next.js app, with a server-side-first processing boundary to filter non-candidate documents and cache parsed PDF assessment data, eliminating redundant AI token consumption
- Infrastructure: owned it end-to-end (GitHub org, CI/CD, subdomain deployment, observability stack); 100% Vercel Speed Insights score
- Product thinking: implemented a pre-assessment email gate converting free-tool traffic into a lead funnel; collaborated directly with client leadership on spec, architecture, release planning, and branding/SEO
Fintech company with ~100 early adopters testing a gamified MVP.
- Architected and delivered the Earnzy App, a greenfield Web3 gamification youth sports MVP, in an 8-week sprint (Pre-Series Seed)
- Delivered production-ready MVP 40% ahead of schedule through AI-augmented development workflows
- 100% COPPA compliance for under-13 authentication via zero-trust architecture, multi-channel parental consent, passwordless flows
Fintech building Palpitada, a decentralised marketplace platform with 1000+ monthly user transactions.
- Technical leadership across Palpitada's 12-week MVP sprint; mentored engineers, coordinated cross-functional roadmaps with backend/design
- 94% reduction in build complexity (from 17k to 1k modules), 2.5s TTFB improvement via SSR migration, optimistic cache updates and SSE
- Established proactive issue detection via Microsoft Clarity dead-click analysis, shifting 40% of fixes from reactive to preventive
Polkamarkets App, a DeFi platform where 10,000+ users trade outcome fractions with $POLK.
- Delivered App v2 with full WCAG 2.1 AA compliance across all device types
- 15% Lighthouse improvement through code-splitting and asset optimization
- Established a testing culture (Jest), cutting regression rates by 50% and speeding feature delivery from 5 to 3 days
Global corporate wellness platform, 26,000+ mental health support employees. QR-code onboarding UI and design token work.
- 10% productivity gain via design token centralization and component standardization
- Owned end-to-end QR-code onboarding, migrating ~500,000 users from Vitalk to Wellz
Bepro App, a Web3 bounty marketplace with 300+ developers.
- Decentralised wallet-based authentication for protocol users
- 15% Core Web Vitals improvement via lazy-loading and dynamic asset purging
UFAL 60 Years virtual exhibition. 
- Optimised web gallery for 500+ visitors under poor network conditions (progressive image loading, Lite Mode)
- Led role-based (patients, interns, admins) EHR system design/frontend, replacing paper workflows with cloud storage
Education
EC Dublin: English language proficiency, acknowledged by IELTS Ireland.
IFAL (Federal Institute of Alagoas): Technical Degree in Information Technology.
Technical Skills
AI Development
Core Stack
State & Data
Real-Time & Performance
Design Systems
Design Ops
Web3 & Blockchain
QA
DevOps & Infrastructure
Compliance & Security
Legacy & Migration
Languages
