Greg Long: Freelance Developer

Hi! Im Greg. I’m a freelance developer based in Canada, specializing in helping startup founders build and scale marketplaces. I spent 14 years in IT before moving into software development a decade ago. My dev career started in the Netherlands at a startup incubator called 'The Hague Tech.' That’s where I fell in love with the fast-paced world of MVPs—working one-on-one with founders to hit tight deadlines, then sticking around to turn those prototypes into full-fledged, production-quality apps. For the last 4 years, I’ve also been a whitehat hacker. I’ve found security vulnerabilities for Microsoft, Apple, and Amazon—in 2025, I actually ranked in the top 100 researchers for Microsoft. When I work with you, you’re getting that security mindset by default. I jumped into the Sharetribe ecosystem in 2023 when two founders approached me to build a services marketplace. After doing the deep dive, I recommended Sharetribe, joined the startup as a part-owner, and built https://bookyrslf.com. I learnt the Sharetribe platform inside and out during that build and really learnt what my co-founders needed to feel comfortable on the journey. I prefer a collaborative approach where I understand your big picture. I want to recommend strategies that fit your budget and long-term goals, not just write code and leave you wondering what’s next. I’m big on transparent communication—you shouldn’t be afraid of a "surprise invoice" every time we need to hop on a quick call to bounce an idea around. Some of what I can help with. See more specialisations below. * Full UI​/​UX Redesigns: I use AI tools like Builder.io to speed up the process and can even get you involved in the design if you're into that. * n8n & Zapier Automation: I’ve built a custom n8n integration for Sharetribe. I can automate your listing approvals, Stripe verification reminders, and transaction monitoring. * Security Audits: Making sure your entire infrastructure is actually locked down. * AI Assistance: Implementing AI to help your users create better listings. About Me Originally an Aussie, now living in British Columbia. If I’m not at my desk, I’m probably snowboarding or mountain biking. Ready to talk shop? If you're weighing up features or just want to see if Sharetribe is the right fit for your idea, feel free to reach out. I'm always happy to hop on a quick intro call to see how I can help.

  • 📍 LocationAmericas

💻 Website

https://tribebuilder.dev

🌎 Languages

  • English

⚙️ Five features or tasks I build really well

  • Marketplace design (all pages, emails, branding, …)
  • Calendar and booking sync with external calendars/platforms
  • Bulk upload listings from csv files or external platforms (e.g. Shopify)
  • Admin capabilities (data analysis, Zapier, user review, listing review, …)
  • Expanded inbox/order pages for providers (statistics, bulk editing, calendar view, …)