You will get Custom SaaS Platform | Internal System Built with Python React
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Project details
Most web applications fail not because of missing features, but because they are built without a clear system architecture and cannot scale once real users and real data are involved.
This service is for businesses that need a production-ready SaaS platform or internal system, not a quick prototype that has to be rebuilt later.
I design and build full-stack applications with a strong focus on long-term reliability, clean architecture, and maintainability. That includes backend systems built with Python, Flask or FastAPI, modern React frontends, and well-structured APIs that integrate cleanly with databases and third-party services.
This project is a good fit if you are:
Building a SaaS product or internal platform from scratch
Replacing an unstable or poorly built existing system
Scaling an application that struggles under real usage
Consolidating manual workflows into a single reliable system
What you can expect:
Clear technical direction before development starts
Backend architecture designed for real production use
Clean and maintainable frontend implementation
Secure API integrations and reliable data handling
A system your team can maintain after delivery
This service is for businesses that need a production-ready SaaS platform or internal system, not a quick prototype that has to be rebuilt later.
I design and build full-stack applications with a strong focus on long-term reliability, clean architecture, and maintainability. That includes backend systems built with Python, Flask or FastAPI, modern React frontends, and well-structured APIs that integrate cleanly with databases and third-party services.
This project is a good fit if you are:
Building a SaaS product or internal platform from scratch
Replacing an unstable or poorly built existing system
Scaling an application that struggles under real usage
Consolidating manual workflows into a single reliable system
What you can expect:
Clear technical direction before development starts
Backend architecture designed for real production use
Clean and maintainable frontend implementation
Secure API integrations and reliable data handling
A system your team can maintain after delivery
Programming Languages
HTML & CSS, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$2,500
|
Standard
$4,000
|
Advanced
$8,000
|
|---|---|---|---|
| Delivery Time | 18 days | 30 days | 45 days |
Number of Revisions | 1 | 2 | 6 |
Number of Pages | 8 | 12 | 25 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
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DC
Dave C.
Sep 5, 2025
Full-stack development of a CRM from scratch
I have had the opportunity to work side by side with Damou Walid, and I must say it has been one of the most enriching experiences of my career. Damou is not only a professional with advanced technical knowledge in web development and digital solutions, but he also brings a strategic and problem-solving vision that turns every project into an opportunity for growth.
He is passionate about his work, with boundless energy and an unwavering commitment to achieving goals. What impressed me the most is that, beyond doing exactly what is asked, he always goes one step further: he contributes ideas, shares knowledge, and enriches projects with innovative solutions that make a real difference.
On a personal level, Damou is approachable, empathetic, and of admirable human quality. On several occasions, he has helped me even outside of his working hours, showing that for him, the relationship with the client goes far beyond the strictly professional. He has never minded dedicating extra time when the situation required it, and he has always kept his word, even surpassing expectations.
Working with him has been a constant support; he has given me confidence, peace of mind, and the assurance that every challenge would have an effective solution. His adaptability, his patience to explain, and his absolute dedication make him a truly unique collaborator.
For all these reasons, I have no doubt in recommending Damou Walid both as a professional and as a person. Anyone fortunate enough to have him on their team will discover not only a top-level developer, but also someone who gets involved, supports, and transforms projects into genuine successes.
He is passionate about his work, with boundless energy and an unwavering commitment to achieving goals. What impressed me the most is that, beyond doing exactly what is asked, he always goes one step further: he contributes ideas, shares knowledge, and enriches projects with innovative solutions that make a real difference.
On a personal level, Damou is approachable, empathetic, and of admirable human quality. On several occasions, he has helped me even outside of his working hours, showing that for him, the relationship with the client goes far beyond the strictly professional. He has never minded dedicating extra time when the situation required it, and he has always kept his word, even surpassing expectations.
Working with him has been a constant support; he has given me confidence, peace of mind, and the assurance that every challenge would have an effective solution. His adaptability, his patience to explain, and his absolute dedication make him a truly unique collaborator.
For all these reasons, I have no doubt in recommending Damou Walid both as a professional and as a person. Anyone fortunate enough to have him on their team will discover not only a top-level developer, but also someone who gets involved, supports, and transforms projects into genuine successes.
JB
Jose B.
Apr 25, 2025
Need full stack developer
DC
Dave C.
Apr 4, 2024
Se necesita programador de phyton especializado en automátizacion
About Walid
AI Automation Developer | Voice Agents , LLM , Python SaaS
100%
Job Success
Berard, Algeria - 10:04 am local time
Built Callaris AI, an AI voice agent platform that supports concurrent calls, live transcription, CRM integrations, campaign management, intelligent routing, and appointment booking.
I help businesses build:
• AI receptionists
• Outbound AI calling systems
• Appointment booking agents
• Lead qualification agents
• Twilio voice systems
• LLM automations
• AI SaaS products
Tech stack:
OpenAI Realtime API
Twilio
Deepgram
Cartesia
Python
FastAPI
PostgreSQL
React
WebSockets
Docker
Recent project:
Callaris AI
Production AI voice platform built end-to-end:
- inbound / outbound agents
- live transcription
- CRM sync
- CSV campaigns
- call forwarding
- concurrent calls
- low latency architecture
Available for AI voice agent and automation projects.
Steps for completing your project
After purchasing the project, send requirements so Walid can start the project.
Delivery time starts when Walid receives requirements from you.
Walid works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery and Technical Plan
I review your requirements, existing assets (designs, docs, current code), and success criteria. Then I confirm scope, define the MVP or phase plan, choose the right architecture, and produce a simple technical roadmap with milestones.
System Design and Setup
I set up the repository, environments, and CI basics. I design the database schema and API contracts, define core modules, and implement authentication, permissions, and the project structure so the platform is scalable and maintainable.