You will get B2B SaaS Platform (Multi-Tenant + Admin Dashboard + Stripe Billing)
Top Rated
Project details
Launch your B2B SaaS platform faster with an experienced team specializing in multi-tenant architecture, secure authentication, and Stripe billing integration.
We build production-ready SaaS MVPs for founders and companies who want a scalable, investor-ready foundation — not just another prototype.
This project delivers a complete SaaS infrastructure: admin dashboard, user roles & permissions, subscription billing, analytics modules, and a clean UI built on modern technologies like Laravel / FastAPI + Next.js + PostgreSQL RLS + Docker CI/CD.
Our approach combines Discovery Blueprint → Prototype Launch → MVP Delivery, ensuring clear scope, predictable timelines, and transparent communication through every milestone.
You’ll receive documentation, deployment guides, and a future-proof codebase ready for growth.
Whether you’re building an HR platform, construction management system, or marketing automation dashboard, we adapt this framework to your industry — saving months of development and avoiding costly rework.
Partner with a team that has delivered SaaS solutions used by hundreds of businesses worldwide.
Focus on your vision — we’ll take care of the tech.
We build production-ready SaaS MVPs for founders and companies who want a scalable, investor-ready foundation — not just another prototype.
This project delivers a complete SaaS infrastructure: admin dashboard, user roles & permissions, subscription billing, analytics modules, and a clean UI built on modern technologies like Laravel / FastAPI + Next.js + PostgreSQL RLS + Docker CI/CD.
Our approach combines Discovery Blueprint → Prototype Launch → MVP Delivery, ensuring clear scope, predictable timelines, and transparent communication through every milestone.
You’ll receive documentation, deployment guides, and a future-proof codebase ready for growth.
Whether you’re building an HR platform, construction management system, or marketing automation dashboard, we adapt this framework to your industry — saving months of development and avoiding costly rework.
Partner with a team that has delivered SaaS solutions used by hundreds of businesses worldwide.
Focus on your vision — we’ll take care of the tech.
Programming Languages
PHP, JavaScript, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$900
|
Standard
$9,000
|
Advanced
$29,000
|
|---|---|---|---|
| Delivery Time | 5 days | 15 days | 60 days |
Number of Revisions | 2 | 3 | 4 |
Number of Pages | 0 | 4 | 10 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | - | ||
Source Code | - |
Optional add-ons
You can add these on the next page.
AI integration
(+ 7 Days)
+$4,000
Multi-Tenant RLS Setup
(+ 2 Days)
+$1,000
Post-Launch Support
(+ 10 Days)
+$3,000Frequently asked questions
35 reviews
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Tom T.
Aug 14, 2026
Full-Stack AI SaaS Consultant (Next.js + Replicate) - help me audit a potential acquisition
Sergei is AMAZING! Working with him was honestly a pleasure from start to finish!
I'm not a technical founder, and I came in needing someone to sanity-check an AI SaaS that I wanted to acquire, and man, I learned more in that one hour than I expected to. He walked me through the stack, flagged the real risks, and explained everything in simple language without using any technical jargon.
He's just a great guy to talk to. If you want a consultant who's sharp, honest, and easy to work with, Sergei is your guy. Can't wait to work with him again!
I'm not a technical founder, and I came in needing someone to sanity-check an AI SaaS that I wanted to acquire, and man, I learned more in that one hour than I expected to. He walked me through the stack, flagged the real risks, and explained everything in simple language without using any technical jargon.
He's just a great guy to talk to. If you want a consultant who's sharp, honest, and easy to work with, Sergei is your guy. Can't wait to work with him again!
SZ
Shu Z.
Jun 30, 2026
Fintech SaaS development
GS
Gaurav S.
Jul 4, 2025
Python API multi-tenant solution in aws
TP
Tim P.
Aug 9, 2024
SaaS Improvements: OpenAI ChatGPT integrations
Sergei and his team, BAUART are excellent to work with. I had a fairly complex project SAAS app (mindcrate.io) that had been botched by another dev who was sloppy and delivered poorly, security flawed code. I first reached out to Sergei to help me audit the code and determine why specific features weren't working. He gave me a full breakdown of what needed to be fixed and a executed a repair plan. Ultimately, I decided to overhaul the SAAS with a new UI and new features that Sergei, Konstantin and Anton diligently worked to deliver. It took longer than I would have liked, but I am very proud of the work and what they helped me bring to life.
Great team, smart guys and willing to go the extra mile. I highly recommend Sergei and BAUART for any of your hardcore SAAS, web app or AI projects. These guys are legit!
Great team, smart guys and willing to go the extra mile. I highly recommend Sergei and BAUART for any of your hardcore SAAS, web app or AI projects. These guys are legit!
TP
Tim P.
Feb 2, 2024
SaaS Improvement by AI: OpenAI ChatGPT Fixes and Integration
Sergei and his team are great to work with. I used them on a quick trial run to take over from another developer. They did a great job of fixing security issues, setting up the enviroment correctly and refactoring the code to get it up to professional level quality. Pushing forward with them on more sprints to help bring my product to an enterprise level. Highly recommended!!!!
About Sergei
AI Powered SaaS Architect/Tech Lead - React / Node / Python / Laravel
100%
Job Success
Yerevan, Armenia - 8:47 pm local time
We start with architecture — before development. We turn your business idea into a clear technical blueprint, define what should be built first, identify risks, and create a foundation your product can grow on.
You don’t need to become technical to build a serious product. You need a technical partner who can take ownership of that part for you.
Architecture First. Then Development.
Before we write hundreds of hours of code, we answer the questions that determine whether your product will succeed technically:
- What should the product architecture look like?
- What should be built now — and what can wait?
- What will become expensive to change later?
- How will the product handle more customers and data?
- Which integrations, security, and infrastructure decisions matter from day one?
- What will it actually take to launch and maintain the product?
You get a clear architecture, development roadmap, priorities, risks, and estimated effort — before committing to months of development.
Then our team can take the entire technical side from there: UI/UX, development, QA, DevOps, deployment, support, and continuous product development.
Why Clients Stay With Us
We’re not looking to become another development vendor you have to manage.
We’ve been the technology partner for one B2B SaaS client for 7+ years, with more than $1M invested in continuous development, growth, and support. The relationship is still active today.
Another project started as a $7K MVP and grew into a $70K product because the foundation was designed for the product’s future — not just for getting the first version out the door.
That’s the kind of relationship we’re built for: start with the right foundation, build properly, and stay with you as the product grows.
If You’ve Already Been Burned by a Dev Team
We understand what you’re trying to avoid:
- missed deadlines
- developers who need constant supervision
- poor communication
- code that becomes harder to change every month
- unexpected technical problems
- starting over after another team
- spending money without knowing what you’re actually getting
Cheap development often isn’t cheap. It’s a mortgage you didn’t know you signed.
Our job is to make the technical side predictable, transparent, and manageable — so you can focus on your customers, sales, product, and business.
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What We Build
SaaS & B2B Platforms
- B2B SaaS
- B2C SaaS
- Multi-tenant platforms
- Workflow and business management platforms
- Custom CRM & ERP systems
- Marketplace platforms
- Internal business applications
AI Products
- AI SaaS platforms
- AI agents
- LLM-powered applications
- RAG systems
- AI automation
- Semantic search
- AI integrations and production systems
Product Development
- New MVP development
- Existing product modernization
- Legacy system rescue and rebuild
- Feature development
- Third-party API integrations
- Long-term product support and evolution
Our Technology
- Backend: Python, FastAPI, Django, Node.js, Laravel
- Frontend: React, Next.js, Vue.js
- Data: PostgreSQL, Redis
- Cloud & DevOps: AWS, Docker, Kubernetes, CI/CD, GitLab
- AI: OpenAI, Claude, LLM APIs, RAG, embeddings, vector databases, AI agents
-mIntegrations: Stripe, Salesforce, HubSpot, SAP, Authorize.Net, Twilio, SendGrid, Google APIs
SaaS Development · B2B Software · MVP Development · Custom Software Development · AI SaaS · AI Development · SaaS Architecture · Software Architecture · Product Development · Technical Architecture · React · Next.js · Python · FastAPI · Node.js · Laravel · OpenAI · Claude · LLM · RAG · AI Agents · API Integrations · CRM · ERP · Multi-Tenant SaaS · AWS · DevOps
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Let’s Start With the Foundation
If you have a product idea, an MVP that needs to be built properly, or an existing SaaS product that has outgrown its current team, let’s start with the architecture.
We’ll turn your business requirements into a practical technical plan — what to build, how to build it, what it will take, and what risks to eliminate before they become expensive.
Message me with a short description of your product and where you are today.
Steps for completing your project
After purchasing the project, send requirements so Sergei can start the project.
Delivery time starts when Sergei receives requirements from you.
Sergei works on your project following the steps below.
Revisions may occur after the delivery date.
Kickoff & Requirements Review
We review your idea, target users, and define success metrics
Architecture & UI Wireframes
We design structure, tech stack, and base UX flow