Yassir, software developer and Claude Code coach at yassir.codes, founder of WebMastry
Building software since 2018
About Yassir · yassir.codes

From 1s & 0s to coaching vibe coders.

I'm Yassir, the developer and coach behind yassir.codes. I coach vibe coders 1-on-1: founders, product managers and designers who build apps with AI tools like Claude Code, Cursor and Lovable, and now need those apps to hold up once real users, real data or real money hit them. I started coding in 2018, and in 2021 I founded WebMastry, a development agency (WebMastry LLC) that has delivered production software for clients in the US, Australia, New Zealand and Germany, on projects from $5k to $100k+. I use Claude Code every day, and it's what I coach best. Coaching is the opposite of agency work: you share your screen and drive, I guide, and you leave able to keep going without me. Here's how coaching works, and what it costs.

I've been working with non-technical founders since 2021. I've seen the full development cycle—from idea to design to MVP. I've watched founders get blocked by not being able to write their own code, needing us for every small change, intimidated by the very codebase they paid tens of thousands to build.

That's changed. Claude Code, Cursor and Lovable let founders see, edit and create code themselves. What's missing is someone who has shipped production software looking over their shoulder, so they learn to do it right. That's where I come in.

Since 2018
Building Software
15k+
Organizations served (WebMastry)

Yassir at a glance

Name
Yassir (yassir.codes)
What he does
1-on-1 Claude Code coaching for vibe coders: founders, PMs and designers taking AI-built apps to production
Building software since
2018
Founded
WebMastry (WebMastry LLC, Wyoming, US) in 2021
Agency clients
US, Australia, New Zealand and Germany, on projects from $5k to $100k+
Works
Online, worldwide. Based on GMT, with hours that overlap US Pacific time
Prices
from $50 for a first session. The intro call is free.
The Problem I Saw

AI is changing everything. But speed without structure is a trap.

Founders, PMs and designers are building faster than ever with AI. What they're missing is the engineering foundation that keeps an app standing once real users arrive. I coach them to build it themselves.

Vibe Coding is Real

AI tools let you build an app in days. The speed is intoxicating, and dangerous if you don't know what you're shipping.

The Gap Emerges

Non-technical founders can build, but they can't diagnose production failures, security holes, or scaling bottlenecks.

Coaching closes the gap

I coach you to turn your AI-built prototype into a production-ready app yourself: security, data, tests, deploys. You do the work, I guide.

My Journey

2018

The Beginning

Started coding journey with data analysis using R and Python.

2019-2020

Web Development Era

Dove into web development. Built first few client projects, learning the ropes of full-stack development.

2021

WebMastry Founded

Got serious. Founded WebMastry and started delivering production software for startups across US, Australia, New Zealand, Germany, and beyond.

2021-2025

Scaling Projects

Delivered dozens of projects: full-fledged products, MVPs, small implementations, with budgets from $5k to $100k+. One platform alone serves 15,000+ organizations.

Late 2025

Vibe Coding Era

Discovered AI coding tools and started helping vibe coders. Today I run 1-on-1 Claude Code coaching that takes founders, PMs and designers from prototype to production.

Want to skip the learning curve?

I've managed projects from $5k to $100k+, so I know where AI-built apps tend to break. See how coaching works, or start with a free 15-minute call.