1-on-1 coaching · Claude Code, Cursor, Lovable

1-on-1 vibe coding coaching. Build fast, sleep well.

I'm Yassir, a vibe coding coach for founders, PMs and designers. You built an app with Claude Code, Cursor or Lovable and it mostly works. I coach you 1-on-1 to make it secure, tested and ready for real users.

Hardening the ecosystem

CursorClaudeSupabaseVercelOpenAIPostgreSQLNext.jsDockerPythonReactCursorClaudeSupabaseVercelOpenAIPostgreSQLNext.jsDockerPythonReact

You're building fast. But is it built right?

Claude Code, Cursor and Lovable get you from idea to working app in days. What they don't do is tell you where the security holes are, or why changing one thing breaks three others. That's what 1-on-1 Claude Code coaching is for: you fix it yourself, with someone who has shipped production apps guiding you.

Hidden Security Risks

AI writes code quickly, but you're not sure if it's opening doors for hackers or leaking data.

Messy Architecture

You've built features, but the underlying structure feels like a house of cards ready to collapse.

Production Readiness

You want to launch, but don't know if your app can actually handle 100 or 10,000 real users.

Technical Roadblocks

You're learning fast, but hitting invisible walls that Claude Code can't seem to explain.

The Difference is in the Detail.

AI tools get you 80% there. I show you the final 20%.

insecure_auth.js

Typical AI Output (The Vibe)

Fast, readable, but dangerously insecure.

01// Creating a new user
02async function createUser(email, password) {
03 const user = await User.create({
04 email: email,
05 password: password // 😱 Plain text!
06 });
07 return user;
08}
09
10// Problems:
11// - Password stored in plain text
12// - Anyone with DB access can see passwords
13// - Massive security breach waiting to happen
Real-World Track Record

Built for Production

Through my company, WebMastry, I've managed and delivered production apps since 2021. Here are two of them. They're where I learned what breaks once real users show up, and it's what I coach you to check in your own app.

15k+
Organizations served
99.9%
Uptime maintained

Both figures: the AI Co-Teacher Platform, a WebMastry project.

AI Co-Teacher Platform

Built an AI assistant that helps teachers automate daily tasks, from lesson planning to student feedback, serving 15,000+ educational organizations.

15k+ Organizations
99.9% Uptime
Live Since 2023

Climate Compliance Platform

Carbon footprint tracking system for investment decisions, managing environmental data for 100,000+ companies worldwide.

Millions of Records Managed
100k+ Companies Tracked
High-Performance Queries
Yassir, vibe coding coach at yassir.codes
Expertise Stack
Node.jsPostgresClaude CodeStripeNext.js
About Yassir · yassir.codes

Meet your vibe coding coach.

I'm Yassir, and yassir.codes is my 1-on-1 coaching for vibe coders: founders, product managers and designers who build apps with AI coding tools like Claude Code, Cursor and Lovable. I help you take a prototype that mostly works and make it ready for real users: secure, tested and deployed properly. I've been writing software since 2018, and in 2021 I founded WebMastry, a development agency that has delivered production software for clients in the US, Australia, New Zealand and Germany, on projects from $5k to $100k+. Coaching is not done-for-you. We meet for 90 minutes on Google Meet or Zoom, you share your screen and work on your own codebase, and I guide. Before every paid session I spend 45 to 60 minutes reviewing your code, and within 24 hours you get a written recap. Your first session is $50.

Background

~8 years building products and leading development teams.

How I coach

You type, I guide. If I type, you learn nothing.

Ways to work with me

Start with a free call, test the fit for $50, or take the full path from prototype to production.

Start here

First session

$50$100

90 minutes on your real project, with a codebase review before we meet. Want to keep going? Get the pack within 7 days after and $50 comes off.

Book your first session
Recommended

Prototype to Production pack

$600· 6 × 90 min

Six sessions, one step at a time: audit, security, data, testing, deploy, handover. WhatsApp support in between. You leave with an app that holds up and the know-how to keep it that way.

See the pack
Free

Free intro call

15 minutes. Tell me what you built and where it's stuck, and I'll tell you honestly whether coaching is the right move.

Book the free call

What WebMastry clients say

No coaching reviews here yet, because the coaching offer is new. These are from founders who hired my agency, WebMastry, to build their software.

WebMastry Client

"Yassir did an excellent job. Working with him allowed me to save several hours of my own development time. He took initiative and kept working on the problem until he figured it out. Very little management was needed. I hope to work with him again in the future."

A
Anthony Paternite
Founder, Amplified Marketing LLC
WebMastry Client

"WebMastry has done an outstanding job with our SaaS analytics platform. They built it exactly as per our specifications, took initiative to suggest new design features, and went above and beyond to make sure we are happy with the results. They make an excellent external dev team."

J
Justin J.
Founder @ Netfolios
WebMastry Client

"Working with WebMastry was an absolute pleasure. Total professional, Yassir is very knowledgeable and wonderful to work with. Looking forward to working with them again soon."

W
Wadah A.
Founder, HotTable App Ltd