
Edu Wass
Verified Expert in Engineering
Web Developer
Andorra la Vella, Andorra
Toptal member since March 2, 2017
Edu is a polyglot generalist engineer with 12+ years across TypeScript, PHP, and Rust — a long-term partner to startups from early stage through growth and acquisition, including TrueLark (acquired by Weave for $35M) and MailCharts (acquired by Validity). He recently architected EventIntel, an AI-powered travel platform, solo: 580+ production PRs in six months by orchestrating AI agent fleets. He also built Microsoft's Windows 10 Italy campaign site and taught at Harbour.Space University.
Portfolio
Experience
- PHP - 12 years
- JavaScript - 10 years
- WordPress - 10 years
- React - 10 years
- APIs - 8 years
- Stripe - 7 years
- TypeScript - 6 years
- PostgreSQL - 2 years
Preferred Environment
MacOS, Bun, Laravel, PHP, TypeScript
The most amazing...
...thing I've built after shipping for Microsoft and the Monza F1 circuit is EventIntel — an AI travel platform I architected entirely solo.
Work Experience
Full-Stack Developer
Goldflower
- Served as sole developer for goldflowerfl.com, a multi-store Florida cannabis retail chain — WordPress block themes integrated with the Sweed POS ecommerce platform through a Cloudflare Worker proxy.
- Built an S3-to-Postgres data pipeline for live menu and product data, geolocation-based nearest-store routing, and Google Places review integration across all store locations.
- Authored the store-launch runbook and shipped new store sites end to end, including a caching strategy with stale-data fallback and alerting, on an ongoing feature and maintenance retainer.
Lead Engineer
EventIntel
- Architected and built EventIntel (eventintel.ai), an AI-powered event intelligence and travel platform, from scratch as sole engineer — AdonisJS, React, Postgres with pgvector, deployed on DigitalOcean with Sentry and OpenTelemetry.
- Built the AI layer end to end: tool-calling concierge and trip planner, entity resolution, an eval harness with rubric judges and nightly runs — shipping 580+ production PRs in six months by orchestrating AI agent fleets.
- Integrated Stripe billing, RateHawk/ETG hotel inventory (passed supplier certification), Victory Live ticketing (HMAC-signed API and webhooks), Ticketmaster data, and Resend transactional email.
Senior Full-Stack Engineer
Wass Tech, SLU
- Delivered 25+ engagements via Toptal and directly for clients including TrueLark, CAROL Bike, Girls Who Code, MailCharts, Harver, and MediaMath — full-stack web development, ecommerce, and API integrations.
- Led TrueLark's web platform for six years through its $35M acquisition by Weave, and migrated CAROL Bike to a WooCommerce multisite serving UK, US, and Australia stores.
- Integrated payment and marketing systems including Stripe, Authorize.net, NetSuite, HubSpot, and CallRail; contributed to WordPress core (Interactivity API proposal) with a merged Gutenberg pull request.
Lecturer and Developer
Harbour Space
- Lectured on a course teaching students what technology makes sense for early and MVP stage, late stage, and scaling the infrastructure, stack, UI/UX, mobile, and back end.
- Helped rebuild parts of the Harbour Space marketing website.
- Implemented a new stack for the website update based on Docker.
CTO
Container Studio
- Created a WordPress API wrapper for React to read values from a WordPress back end and render them in client-side JavaScript.
- Built a Docker image with PHP7, Nginx, Git, and webhooks for site deployment and development ease.
- Developed custom WordPress themes and back-ends for several clients.
- Designed and developed new wireframes for pages for Harbour Space, Europe's state-of-the-art university for technology and design.
- Planned and developed the new website for Ubiqum, a well-known international coding bootcamp.
Full-stack Developer
The George
- Designed and developed the Microsoft Windows 10 Italy promotional site, featuring some of Italy's most talented YouTubers helping boost sales and popularity of Windows 10 in Italy.
- Planned, developed, and provided creative input for the new Monza website, a WordPress site with heavy traffic loads during the F1 season, which we successfully supported using caching methods and load balancing techniques.
- Worked on developing the Wall Street English multisite network, with about 25 different country sub-sites with custom features and functionalities.
- Planned and developed the core back-end of AskCucu, an Airbnb-like housing platform to help students find places to stay in Asia.
- Developed the new Amfivia event company website focused on marketing, resulting in a vast improvement in web conversion rates.
Full-stack Developer
Poliwin Software
- Participated in the design and development of a web-based service for online gym and sport center management.
- Developed web control access systems connected to physical gate hardware that tracked every user's access and time.
- Made critical pieces of accounting-related software for regular usage on the platform.
- Created a tracking system for popular hours of usage and other useful data, which could generate live graph data and PDF reports.
Experience
MailCharts
http://mailcharts.comI developed a custom WordPress theme built 100% from scratch, using designer-provided Sketch multiple-screen designs.
Achievements:
• Enhanced user data visualization.
• Streamlined dynamic data presentation.
• SEO-focused.
TrueLark
https://truelark.comAchievements:
• Enhanced user data visualization with dynamic, API-driven charts.
• Partnered with the team across multiple engagements as the product matured toward acquisition.
CAROL Bike
https://carolbike.comAchievements:
• Dramatically improved site speed and efficiency.
• Enabled smooth handling of thousands of dollars in daily transactions.
• Streamlined updates and maintenance across all sites, supporting CAROL's international growth.
Harver.com
https://harver.com/Achievements:
• Improved site performance.
• Reduced bounce rates.
Harbour.Space
Achievements:
• Created an intuitive user interface.
• Enhanced multimedia content display.
BeFit
I developed BeFit's website, a fitness brand focusing on interactive workout plans and mobile responsiveness.
Achievements:
• Introduced interactive subscription features.
• Improved mobile user experience.
Wall Street English
https://www.wallstreetenglish.comI created a multisite network for Wall Street English, ensuring scalability and enhanced user experience.
Achievements:
• Managed sites for global locations efficiently.
• Optimized site speed.
MediaMath
http://www.mediamath.com/I assisted in building MediaMath's internal product catalog, focusing on streamlining and user interface enhancement.
Achievements:
• Streamlined product management.
• Improved internal user interface.
Girls Who Code
https://girlswhocode.com/Achievements:
• Created a dynamic events section.
• Implemented intuitive navigation.
Ubiqum
https://www.ubiqum.com/I handled the full-stack development for Ubiqum's WordPress site, focusing on interactive and engaging course catalogs.
Achievements:
• Launched the first WordPress site.
• Developed user-engaging course features.
Container Studio
It was a small agency that I co-founded and led the technical aspects as CTO of the company in my time there.
Achievements:
• Implemented captivating design elements.
• Enhanced user engagement and session duration.
StackOverflow Profile
Achievements:
• Answered diverse technical queries.
• Recognized as a top contributor in the community.
GitHub Profile
https://github.com/eduwassAchievements:
• Over the years, I have curated and contributed to multiple projects in the Open-Source ecosystem.
Personal Portfolio
https://eduwass.comEducation
Bacherlor's Degree in Computer Science
Universitat de Barcelona - Barcelona
FP2 in Computer Systems Management
Joan Ramis Institute - Balearic Islands
FP1 Technician in Operating Systems
Joan Ramis Institute - Balearic Islands
Skills
Libraries/APIs
React, Vue, OpenAI API, Node.js, Stripe
Tools
Figma
Languages
CSS, PHP, JavaScript, TypeScript
Platforms
WordPress, WooCommerce, Docker
Frameworks
Laravel
Storage
MySQL, PostgreSQL
Other
eCommerce, APIs, Technical Leadership, User Experience (UX), User Interface (UI), Large Language Models (LLMs), AI Agents, Prompt Engineering, Artificial Intelligence (AI), Bun, Cloudflare, Retrieval-augmented Generation (RAG)
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