Tech Cofounder & Developer
"Force Multiplier." I help non-technical founders test the market by building the leanest possible marketplace on Sharetribe. I'll tell you when Sharetribe isn't the right fit and when you're overbuilding. 30+ Sharetribe marketplaces launched. Repeat clients across Australia, US, UK, and Europe. Expert-vetted on Toptal (top 3%) and Upwork (top 1%, 100% Job Success Score). Developer since the 1900s. Startup founder since 2013. What clients come to me for: - Stripe Connect deep expertise: separate charges & transfers, partial refunds, cancellation policies, payout timing, and alternative payment processors like PayPal - Shipping integrations (Shippo, Sendle, ShipStation) - Identity verification (Persona, Didit) - Third-party integrations (Nylas, Twilio, SendGrid, and more) - Reverse proxy setups (WordPress/Webflow + Sharetribe on the same domain) - Taking over codebases from other developers - MVP scoping: what to build first, what to skip entirely "I've seen many different plans from other Sharetribe Expert Developers. It is clear you take a path of least resistance approach which I sincerely appreciate. I don't like to overinvest in unnecessary work and it is clear you don't like waste either." -- B2B marketplace founder, US AUD 199/hr (~USD 139/hr). Estimates and fixed-price quotes available.
- 💻 Websitehttps://sharetribe.jayenashar.org/
- 📍 LocationAustralia & Oceania
⭐️ Services
- Custom coded features
- Mobile application building
- Automations and integrations
- Growth and acquisition
- Pre-development services (feature prioritization, business strategy, brand design...)
🌎 Languages
- English
⚙️ Core areas of expertise
- Landing page redesign
- Change Stripe to another payment system (PayPal, MangoPay, Adyen, …)
- Complex pricing (discount codes, seasonal or volume pricing, deposits, partial refunds, taxes, …)
- Shipping improvements (dynamic pricing, tracking code, label printing, …)
- Calendar and booking sync with external calendars/platforms
💸 How pricing works
AUD 199/hr (~USD 139/hr). Estimates and fixed-price quotes available. Example pricing for common features: - No-code setup and branding: from AUD 499 (~USD 349) - Shipping integration (Shippo/Sendle/ShipStation): from AUD 999 (~USD 699) - Custom payment processor integration: from AUD 1,999 (~USD 1,399) - Reverse proxy setup (WordPress/Webflow + Sharetribe): from AUD 199 (~USD 139)
I really appreciated how Jayen approached our collaboration. I was just getting my business started and I did not have a large budget. Jayen processed my requirements and carefully outlined variables like complexity, cost, time, and need. He demonstrated his marketplace business expertise sharing his thoughts on the necessity of certain features. I was able to identify my immediate priorities. Jayen was able to deploy features in our agreed upon timeline. When there were small fixes I identified in tested, he quickly made the updates. Jayen showed his flexibility to build features within my constraints. He was a thought partner, not just a builder. I received excellent reviews from my stakeholders who were pleased with the initial feature-set. I looking forward to continuing our collaboration as my marketplace grows. Posted by Sharetribe on behalf of the Solution Playground team
The Sharetribe Team•June 2026•
- At
He is an excellent developer: fast, reliable, and very professional. He delivers high-quality work on time, communicates clearly, and is always quick to solve any issues. Highly recommended.
The Furvola Team•May 2026•
Working with Jay has been great. As a young marketplace with no professional technical experience his help has been invaluable, as he was always available to help designing the feature and he would provide great business-aware advice. Posted by Sharetribe on behalf of the RoofWander Team
The Sharetribe Team•May 2026•
- Sg
It was a pleasure working with Jayen, he took time to thoroughly understand my needs and requirements and went about delivering them professionally and quickly. I would work with him again 100%
The Race Kart Network Team•May 2026•
- SV
I’ve been working with Jayen and Adam on the development of SaferFaces, and they have been nothing short of amazing. Beyond the actual development work, they’ve provided genuinely valuable strategic advice that has helped me make better technical decisions and think more clearly about how to give the platform the best chance of success. As a non technical founder, it’s been incredibly helpful to have a team that not only understands the build, but also takes the time to explain the thinking behind key decisions. Their input has given me a much stronger footing and a clearer path forward. I’m genuinely very happy with the work they’ve done and the way they’ve supported the project so far. I’d highly recommend them to anyone looking for development support, especially if you’re building a marketplace or working with Sharetribe. They deserve real recognition for the quality of their work and the care they put into helping founders succeed.
Founders of Saferfaces.com•May 2026•
About the listing author
"Force Multiplier." Experienced tech startup founder (since 2013) and software developer (since the 1900s), helping non-technical founders test the market by building…
"Force Multiplier." Experienced tech startup founder (since 2013) and software developer (since the 1900s), helping non-technical founders test the market by building…