You will get Python Development | API Development Web Scraping SaaS Tools
Project details
❗️ IMPORTANT: every client has unique requirements, so please let's talk before ordering.
A SaaS app can look simple from the outside, but behind it there are user roles, dashboards, APIs, payments, admin logic, data flows, and performance issues that need to work together. I help build full-stack web apps as a Full Stack Developer, React Developer, and web developer.
You will get Full Stack Development for a React web application, SaaS platform, dashboard, admin panel, internal tool, or MVP. I work with React, JavaScript, Node.js, TypeScript, Python, API Integration, MongoDB, MySQL, Firebase, and backend architecture.
As a React Developer, I build fast, clean frontend logic, reusable components, responsive UI, and scalable web application flows. As a Full Stack Developer, I connect frontend with backend APIs, databases, authentication, roles, dashboards, AI features, and production systems.
Relevant work includes Beatly, Majykri, CoreVitals Admin, Mila Cares, Notate, and The Simple Sales Pipeline.
Full Stack Developer for React, Node.js, JavaScript, API Integration, SaaS development, web application development, dashboards, and scalable product delivery.
A SaaS app can look simple from the outside, but behind it there are user roles, dashboards, APIs, payments, admin logic, data flows, and performance issues that need to work together. I help build full-stack web apps as a Full Stack Developer, React Developer, and web developer.
You will get Full Stack Development for a React web application, SaaS platform, dashboard, admin panel, internal tool, or MVP. I work with React, JavaScript, Node.js, TypeScript, Python, API Integration, MongoDB, MySQL, Firebase, and backend architecture.
As a React Developer, I build fast, clean frontend logic, reusable components, responsive UI, and scalable web application flows. As a Full Stack Developer, I connect frontend with backend APIs, databases, authentication, roles, dashboards, AI features, and production systems.
Relevant work includes Beatly, Majykri, CoreVitals Admin, Mila Cares, Notate, and The Simple Sales Pipeline.
Full Stack Developer for React, Node.js, JavaScript, API Integration, SaaS development, web application development, dashboards, and scalable product delivery.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$111
|
Standard
$1,600
|
Advanced
$4,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 2 | 3 | 4 |
Number of Pages | 10 | 20 | 30 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
About Vitalii
Python AI Developer | SaaS Developer | LLM RAG Backend Systems
Kharkiv, Ukraine - 6:18 am local time
❗️ Most "AI MVPs" die the moment a real user touches them. 𝐌𝐢𝐧𝐞 𝐝𝐨𝐧'𝐭. Beatly connects 250M+ creators with brands like Netflix, Uber & Spotify. 𝐌𝐢𝐥𝐚 𝐂𝐚𝐫𝐞𝐬 𝐫𝐚𝐢𝐬𝐞𝐝 $1.58𝐌 𝐚𝐧𝐝 𝐬𝐞𝐫𝐯𝐞𝐬 50𝐊+ 𝐮𝐬𝐞𝐫𝐬. 𝐅𝐢𝐥𝐥𝐫𝐫 𝐡𝐢𝐭 𝐚 4.9⭐️ 𝐀𝐩𝐩 𝐒𝐭𝐨𝐫𝐞 𝐫𝐚𝐭𝐢𝐧𝐠. That's the difference between an AI demo and an AI SaaS product that actually holds up under real load, real data, and real billing.
👋 I'm Vitalii - AI SaaS Developer, Python developer, and full stack developer at Olearis. I help founders turn messy AI ideas into stable products that work after the demo, not just in it.
Here's the uncomfortable truth: most AI Development projects fail not because the model is bad, but because nobody designed the system around it - the data structure, billing, roles, dashboards, and clean APIs that decide whether a product survives. As an AI SaaS Developer I build the whole system, not just the clever-looking part.
🎯 Where I create the most value:
▪️ AI Development that earns its place — AI assistants, document parsing, image recognition, RAG pipelines, recommendations, and workflow automation. I integrate LLMs (OpenAI, Claude) into real products with cost control and observability, so your AI Development spend is an investment, not a science experiment.
▪️ Python Development, end to end — As a Python developer I work in FastAPI and Django, building REST API development, data pipelines, web scraping, microservices, and automation. Need market data wired in? I've handled things like Interactive Brokers API and other third-party integrations. Clean Python Development is the backbone of every SaaS I ship.
▪️ SaaS Developer who thinks past features — As a SaaS Developer and software developer I design subscriptions, billing, multi-role admin logic, analytics, and the data plumbing that supports SaaS marketing and lifecycle insights. As a web developer I also cover the surrounding UI, web design, and dashboards — fewer handoffs, faster decisions.
🧠 𝐓𝐡𝐞 𝐰𝐚𝐲 𝐈 𝐰𝐨𝐫𝐤: I look at product flow and technical risk before writing code, so you get fewer rebuilds, cleaner handoffs, and less money burned later. You get one developer who understands the full picture — instead of five contractors passing tickets around.
⚙️ 𝐖𝐡𝐲 𝐟𝐨𝐮𝐧𝐝𝐞𝐫𝐬 𝐛𝐫𝐢𝐧𝐠 𝐦𝐞 𝐢𝐧 𝐢𝐧𝐬𝐭𝐞𝐚𝐝 𝐨𝐟 𝐚 𝐜𝐡𝐞𝐚𝐩𝐞𝐫 𝐭𝐞𝐚𝐦: because rebuilds are expensive and trust is fragile. As a full stack developer and software developer I don't hand you a prototype and disappear - I build the boring, critical infrastructure that keeps an AI SaaS product alive once real users, real data, and real invoices show up. If a previous AI app developer left you with a demo that crumbles under load, that's exactly where I come in.
💻 𝐖𝐡𝐚𝐭 𝐭𝐡𝐚𝐭 𝐥𝐨𝐨𝐤𝐬 𝐥𝐢𝐤𝐞 𝐢𝐧 𝐫𝐞𝐚𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬: With Fillrr, I built the document-automation and smart-parsing layer behind its 4.9⭐️ App Store rating. With Beatly, the platform now connects 250M+ creators to brands like Netflix, Uber, and Spotify - the kind of scale that punishes sloppy architecture. Mila Cares raised $1.58M and serves 50K+ users on infrastructure that has to stay up. CoreVitals and Elevate Health run on health-data APIs, clinic workflows, and role-based dashboards where data integrity isn't optional. And Majykri turns messy research into structured projects and auto-generated reports.
Different industries, same pattern: an AI SaaS product only survives when someone designs the whole system - Python backend, clean APIs, billing, roles, and the AI Development that actually saves users time. That's the work I do as an AI SaaS Developer, Python developer, and full stack developer.
🌍 I work with founders, startups, and product teams worldwide- from a first AI MVP to scaling a SaaS platform with thousands of paying users. Clear communication, honest scope, and no surprises on the invoice. Whether you're validating an idea or rescuing a stalled build, I bring the same systems-first thinking that powers Beatly, Fillrr, and Majykri.
🛠️ 𝐒𝐭𝐚𝐜𝐤: Python (FastAPI, Django), Node.js, React, JavaScript, REST API development, data pipelines, web scraping, microservices, AI assistants & document parsing, subscriptions & billing, cloud deployment.
If you're building an AI SaaS product, AI app, or Python backend and want it done cleanly from the start - send me the brief and let's talk.
Steps for completing your project
After purchasing the project, send requirements so Vitalii can start the project.
Delivery time starts when Vitalii receives requirements from you.
Vitalii works on your project following the steps below.
Revisions may occur after the delivery date.
Project review and delivery plan
I’ll review your requirements, designs, current stage, tech needs, APIs, and goals, then define the best development plan before starting.