You will get Web Application Architecture & System Design
Project details
I know many entrepreneurs with brilliant SaaS ideas who have faced challenges in the past and envisioned solving them by creating tools that truly remove the pain points for their users.
With 13+ years of professional programming experience, I design robust, scalable, and highly efficient systems that grow seamlessly as your business scales.
With 13+ years of professional programming experience, I design robust, scalable, and highly efficient systems that grow seamlessly as your business scales.
Programming Languages
PHP, JavaScript, JavaWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$5,000
|
Advanced
$20,000
|
|---|---|---|---|
| Delivery Time | 1 day | 4 days | 15 days |
Number of Revisions | 2 | 5 | Unlimited |
Number of Pages | 1 | 6 | 200 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | - | - | |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Page
(+ 1 Day)
+$100
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SK
S K.
Dec 10, 2025
Single Page Responsive Website hosted on github pages: phase 3
ID
Igor D.
Sep 2, 2025
System Concrete 5 version 5.2 reduces the speed of logging in
Very comfortable work. Quickly responds, offers solutions. Highly recommend.
AD
April Joy D.
Jul 18, 2025
Seeking Digital Transformation Decision-Makers – Paid Survey
Thank you, Mohssin!
LV
Limba V.
Jan 24, 2024
Forced Html / JS Overlay required (mobile-friendly)
HM
H M.
Oct 22, 2023
Integrate fullcalendar.io with a booking front end and video stream service
About Mohssin
Full-Stack Developer | Technical Lead
100%
Job Success
Milan, Italy - 6:10 am local time
My philosophy is to understand things, not memorize them. I have a solid understanding of both SPA and MVC architectures. I always dive deep into technologies, not only to understand how to use them, but also how they work under the hood. This gives me the confidence to design and build robust, end-to-end systems. I am comfortable working independently or as part of a team to build robust, resilient, and reliable web applications.
I have developed custom ERP systems for a variety of businesses, including beauty salons, inventory management companies, medicine manufacturing facilities, and more. I have also developed a multi-tenant, production-grade Software as a Service (SaaS) platform for a modern startup, delivering a world-class user experience that is loved by customers worldwide.
I am very familiar with the Odoo source code, including developing on-demand modules and implementing zero-downtime migrations to newer versions using a completely safe and controlled approach.
I also have a solid understanding of ERPNext and Frappe Framework architecture. I can quickly design and implement custom solutions to meet your business requirements.
I integrate AI into business applications to automate repetitive and boilerplate tasks. I strongly prefer and advocate for local and sovereign LLMs, particularly specialized models, to give businesses complete control over their data. For this, I leverage Ollama to download and run open-weight models locally.
I also use OpenAI APIs for advanced reasoning and AI-powered capabilities. If needed, we can fine-tune open-weight models or even train custom models from scratch, depending on the requirements and available resources.
I am fluent in the following technology stacks:
* Angular, React, Java (Spring Boot), and PHP (Laravel)
* Python, FastAPI, Frappe Framework, AI/Deep Learning with TensorFlow and PyTorch
* WordPress custom theme and plugin development (expert level)
* Native Android application development
* Flutter development for iOS and Android
* Senior Odoo and ERPNext development
* High-performance C/C++ custom software and tools development
* AI integration into business applications
Steps for completing your project
After purchasing the project, send requirements so Mohssin can start the project.
Delivery time starts when Mohssin receives requirements from you.
Mohssin works on your project following the steps below.
Revisions may occur after the delivery date.
Introductory Video/Audio call
We will start by getting to know each other, discussing your project in detail, and exchanging ideas before beginning the work.
Deep Dive into Requirements:
We’ll dive deeper into your requirements. I’ll outline high-level architecture options, recommend the best technology stack. By the end of the call, we’ll have a clear roadmap, agreed scope, and a plan for moving forward with confidence.