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Yosavo Studio by Youssef Ibaichou , home
Technical Expertise

Technical knowledge shaped by real products.

My expertise comes from building, leading and delivering production software across SaaS, cloud, accessibility and modern application development. These pages explain how I approach the technologies and technical decisions I work with most.

Product Engineering

SaaS Development

Tenancy, permissions, plans, billing and the realities of running SaaS in production.

  • Multi-tenancy
  • Permissions
  • Billing
  • Production delivery

Multi-Tenant SaaS

Tenant boundaries enforced everywhere: data, jobs, files, caches and reports.

  • Data isolation
  • Tenant context
  • Membership
  • Noisy neighbours

API Development

Predictable API contracts: validation, errors, authorization, idempotency and webhooks.

  • API design
  • Error handling
  • Idempotency
  • Webhooks

Backend

Laravel

Maintainable backends: structure, Eloquent, queues, authorization and SaaS patterns.

  • Application structure
  • Eloquent
  • Queues
  • Testing

Node.js

APIs, integrations and serverless workloads with careful async design.

  • API architecture
  • Async patterns
  • Serverless
  • Observability

Frontend

React

Product interfaces: state ownership, API workflows, forms and accessibility.

  • State management
  • API integration
  • Forms
  • Accessibility

Vue.js

Vue product interfaces: component boundaries, composables, state and Laravel integration.

  • Composition API
  • State ownership
  • Laravel + Vue
  • Accessibility

Cloud & AI

AWS

Workload-first cloud architecture: serverless, storage, data, security and cost.

  • Serverless
  • S3 & DynamoDB
  • IAM
  • Cost awareness

AI Integration

Applied LLM engineering: structured output, validation, cost and security.

  • LLM integration
  • Structured output
  • Validation
  • Cost control

Specialized

Web Accessibility

Accessible engineering: semantics, keyboard and focus, forms, testing and WCAG in practice.

  • Semantic HTML
  • Keyboard & focus
  • Manual testing
  • WCAG

Technical Project Management

Delivery led with engineering context: scope, dependencies, risk and releases.

  • Scope & planning
  • Dependencies
  • Risk
  • Releases

WordPress

Custom themes, plugins and integrations — and knowing when WordPress fits.

  • Custom themes
  • Plugins
  • Accessibility
  • Security

Approach

More than a technology list.

Technical expertise is not about knowing the most frameworks. It is about understanding trade-offs, choosing appropriate solutions, and building systems that remain reliable as products evolve.

See the products behind it
Let's talk

Have a technical challenge?

Whether it's architecture, delivery or a specific technical problem, I can help you find a practical path forward.

Start a Project View Services
  • Software
  • AI
  • Cloud
  • Accessibility

What happens next

  1. Share your goal

    A few lines about the product, problem, or audit need.

  2. Get a quick read

    A practical reply on the best technical path forward.

  3. Move forward

    A clear scope, estimate, or concrete next step.