You will get Full Stack Developer for a multi-tenant FinTech SaaS platform with AI / RAG
Top Rated
Project details
Please contact me before purchasing to discuss your specific scope and deliverables. The intro call is 100% free!
FinTech demands more than a simple chatbot. It requires a secure, high-accuracy architecture. I deliver complete multi-tenant ecosystems built for scale, reliability, and precision.
Why this project stands out:
Multi-Tenant Architecture: Sophisticated database design ensuring strict data isolation and security for thousands of corporate tenants.
Hallucination-Free RAG: Advanced Retrieval-Augmented Generation pipelines that force the AI to answer exclusively from verified financial data.
End-to-End Development: I bridge the gap between complex AI logic and high-performance UX, handling everything from vector database optimization to the frontend.
Compliance-First Security: Built from the ground up to meet the rigors of financial regulations like GDPR and SOC2.
I don't just build apps. I build the engine for your next-generation financial business. Message me today to turn your data into a competitive advantage.
FinTech demands more than a simple chatbot. It requires a secure, high-accuracy architecture. I deliver complete multi-tenant ecosystems built for scale, reliability, and precision.
Why this project stands out:
Multi-Tenant Architecture: Sophisticated database design ensuring strict data isolation and security for thousands of corporate tenants.
Hallucination-Free RAG: Advanced Retrieval-Augmented Generation pipelines that force the AI to answer exclusively from verified financial data.
End-to-End Development: I bridge the gap between complex AI logic and high-performance UX, handling everything from vector database optimization to the frontend.
Compliance-First Security: Built from the ground up to meet the rigors of financial regulations like GDPR and SOC2.
I don't just build apps. I build the engine for your next-generation financial business. Message me today to turn your data into a competitive advantage.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$10,000
|
Standard
$20,000
|
Advanced
$30,000
|
|---|---|---|---|
| Delivery Time | 30 days | 50 days | 70 days |
Number of Revisions | 2 | 5 | Unlimited |
Number of Pages | 5 | ||
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | |||
Source Code |
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We have worked with them on multiple complex projects and they always deliver amazing results.
they are technically very experienced and work great as part of complex dev teams
We have worked with them on multiple complex projects and they always deliver amazing results.
they are technically very experienced and work great as part of complex dev teams
About Igor
Full Stack Developer
100%
Job Success
Kyiv, Ukraine - 2:08 am local time
✅ 100% Job Success Score
✅ 50+ SaaS Projects Delivered
𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗟𝗘 𝗧𝗢 𝗦𝗧𝗔𝗥𝗧 𝗧𝗢𝗗𝗔𝗬! 🧩 Updated daily. 🧩 Fast delivery. 🧩 Flexible engagement. 🧩Production-ready code. 🧩 Scalable architecture. 🧩 Personalized approach to each project.
𝗢𝗩𝗘𝗥𝗩𝗜𝗘𝗪
🏆 7+ years of experience as a Full Stack Developer and SaaS Engineer
🏆 50+ products delivered, web apps, SaaS platforms, AI systems, and enterprise tools
🏆 Strong background in multi-tenant SaaS, dashboards, AI integrations, and complex business logic
🏆 Expert in Node.js, Python, React, Next.js, PostgreSQL, and AI APIs
🏆 Always deliver production-ready, scalable, and maintainable code
🏆 Final delivery includes clean architecture, documentation, and deployment
𝗔𝗕𝗢𝗨𝗧 𝗠𝗘
👋 I'm a Senior Full Stack Developer at Indeema, a full-cycle software and AI development agency trusted by startups, scale-ups, and enterprise teams.
💚 My best clients include Urban Dictionary, NOKIA, AWS, STADLER, FuboTV, Riverside.
Drop me a message with "𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞" we'll run a free discovery call and create a clear step-by-step plan without making expensive mistakes.
𝗪𝗛𝗔𝗧 𝗠𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗦𝗔𝗬
⭐⭐⭐⭐⭐ "Igor delivered exactly what we needed — clean code, clear communication, and on time. Will definitely work with him again." — Long-term client, Upwork
⭐⭐⭐⭐⭐⭐ "Outstanding Full Stack Developer. He took full ownership of the project, suggested smart architecture decisions, and delivered a production-ready platform we're proud of." — SaaS client, Upwork
𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘
⚡ Healthcare: HIPAA-compliant platforms, remote patient monitoring, clinical dashboards, medical IoT
⚡ FinTech: Multi-tenant financial SaaS, AI-driven analytics, real-time data pipelines
⚡ Real Estate: AI-powered property platforms, automated workflows, market intelligence
⚡ HoReCa: Restaurant and hotel management SaaS used by 50+ businesses across the UAE
⚡ Logistics: Operational tracking, fleet management, backend automation
⚡ B2B & B2C: Enterprise internal tools and consumer-facing web applications
𝗪𝗛𝗬 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘
🔎 Multi-tenant SaaS platforms built to scale from day one
🔎 AI integrations that ship to production, not just demos
🔎 Frontend and backend owned end-to-end — no handoff delays
🔎 Complex multi-role workflows, permission systems, and business logic
🔎 Clean API design and solid data modeling in Node.js and Python
🔎 A reliable senior partner, not a vendor who disappears after launch
𝗡𝗨𝗠𝗕𝗘𝗥𝗦 𝗧𝗛𝗔𝗧 𝗠𝗔𝗧𝗧𝗘𝗥
🚀 7+ years building production-ready SaaS and AI systems
🚀 50+ products delivered from MVP to enterprise scale
🚀 Consistently 5-star client reviews
🚀 100% Job Success Score
𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
📝 Frontend: React, Next.js, TypeScript, Tailwind
📝 Backend: Node.js, Python, FastAPI, REST, GraphQL
📝 Databases: PostgreSQL, Supabase, MongoDB
📝 AI: Claude API, OpenAI, LangChain, RAG pipelines
📝 DevOps: AWS, Docker, CI/CD, GitHub Actions
📝 Tools: Jira, GitHub, Copilot, Figma
𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦
Full Stack Developer, SaaS Developer, Node.js, Python, React, Next.js, MERN Stack, PostgreSQL, Supabase, REST API, GraphQL, AI Integration, OpenAI, Claude API, LangChain, RAG, Multi-tenant SaaS, Dashboard Development, HIPAA, FinTech, HealthTech, Real Estate, B2B SaaS, MVP Development, Enterprise Software, Web Application, Mobile App, Backend Developer, Frontend Developer, AI Developer
Updated: 10.06.2026
Steps for completing your project
After purchasing the project, send requirements so Igor can start the project.
Delivery time starts when Igor receives requirements from you.
Igor works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Architecture Design
I analyze your requirements to design a secure multi-tenant database structure and select the most efficient LLMs and vector databases for your specific financial use case.
AI & RAG Engine Development
Setting up the retrieval-augmented generation (RAG) pipeline, embedding your knowledge base, and testing the AI for accuracy and 'hallucination' prevention.