You will get your legacy software rebuilt into a modern web app
Rising Talent
Rising Talent
Project details
I will analyze your existing database, legacy software, workflows, and business processes to rebuild your application using modern technologies while preserving your data, logic, and operational structure.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Localization, Performance OptimizationWhat's included
| Service Tiers |
Starter
$1,200
|
Standard
$2,200
|
Advanced
$5,500
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 15 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 15 | 25 | 60 |
Design Customization | - | ||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$500 - $1,200
Additional Revision
+$300
Additional Page
(+ 2 Days)
+$200Frequently asked questions
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MI
Mariia I.
Jun 22, 2026
AI Developer / AI Saas Developer Needed - Quick Task
Yassine delivered excellent work on this AI Developer / AI SaaS Developer task. He quickly identified the bug in the OpenAI API response handling - the message content was being accessed incorrectly - and fixed it cleanly with no unnecessary changes to the surrounding code. The new sentiment classification feature was implemented exactly as specified: clean logic, well-structured, and easy to extend.
His English communication was excellent throughout - responses were prompt, clear, and professional. As an AI developer, he clearly knows his way around API integrations and generative AI tools. Would hire again without hesitation.
His English communication was excellent throughout - responses were prompt, clear, and professional. As an AI developer, he clearly knows his way around API integrations and generative AI tools. Would hire again without hesitation.
About Yassine
AI SaaS Architect | AI Agents | LLM Automation | MVP Development | CTO
Marrakesh, Morocco - 3:38 am local time
As a CTO and AI SaaS Architect, I help founders and businesses transform ideas into production-ready products. Whether you're validating an MVP, building an AI-powered SaaS, automating business workflows, or integrating LLMs into existing systems, I focus on delivering solutions that are scalable, maintainable, and designed for long-term growth—not just quick prototypes.
I work across the full product lifecycle, from architecture and technical strategy to implementation and deployment. My expertise includes AI Agents, OpenAI integrations, workflow automation, SaaS architecture, multi-tenant platforms, CRM systems, API integrations, and modern web applications built with React, Next.js, Node.js, and Supabase.
What clients value most is not just my ability to build software, but my ability to identify risks early, simplify complex architectures, challenge assumptions when necessary, and recommend practical solutions that save time and reduce future technical debt.
Whether you're a startup building your first MVP, a growing SaaS company scaling its platform, or an established business looking to automate operations with AI, I approach every project as a technical partner invested in its success.
If you're looking for someone who combines CTO-level thinking with hands-on execution, I'd be happy to discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Yassine can start the project.
Delivery time starts when Yassine receives requirements from you.
Yassine works on your project following the steps below.
Revisions may occur after the delivery date.
Analyze & Understand
We review your database, application, workflows, and business processes to fully understand how your system operates.
Design & Plan
We create a modernization blueprint including architecture, user experience improvements, migration strategy, and implementation roadmap.