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You will get Full-Stack Web App MVP (React + FastAPI + PostgreSQL)

Aleksei A.Status: Offline
Aleksei A. Aleksei A.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Aleksei, priced and ready to go.
Aleksei A.Status: Offline
Aleksei A. Aleksei A.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Aleksei, priced and ready to go.

Project details

I build production-ready full-stack web applications from idea to deployment. 18+ apps delivered, 9 running in production — including a medical PWA serving real users and an AI plant care app. You get clean, modern code (React/Next.js + FastAPI/NestJS + PostgreSQL), responsive design, Docker deployment, and full documentation. I ship MVPs in 1-2 weeks, full apps in 2-4 weeks. 8+ years of business experience means I focus on solving your actual problem, not over-engineering.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$1,000
Standard
$3,000
Advanced
$7,000
Delivery Time 7 days 14 days 28 days
Number of Revisions
235
Number of Pages
3820
Design Customization
-
Content Upload
-
-
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Additional Revision
+$150
Additional Page (+ 2 Days)
+$200
Design Customization (+ 3 Days)
+$300
AI Integration (+ 5 Days)
+$500

Frequently asked questions

Aleksei A.Status: Offline

About Aleksei

Aleksei A.Status: Offline
AI/Automation Engineer | Python, React, FastAPI | Claude, GPT-5, RAG
Astana, Kazakhstan - 11:42 am local time
I build production AI applications end-to-end — from architecture to deployment. 18+ projects delivered, 9 running in production. 40+ Docker containers across 2 servers. 100+ business automations.

── WHAT I DELIVER ──

▸ AI-Powered Web Applications
Full-stack apps with LLM at the core: React/Next.js frontend + FastAPI/NestJS backend + PostgreSQL. From MVP to production in 2-4 weeks.

▸ LLM Integration & AI Agents
Claude API, GPT-4, OpenRouter, Dify platform. RAG pipelines with Weaviate vector DB. Multi-agent systems with anti-hallucination design.

▸ Business Process Automation
n8n workflows (100+ built), ETL pipelines, Playwright browser automation, Telegram bots, API integrations (REST, SOAP, MTProto).

▸ Infrastructure & DevOps
Docker orchestration (40+ containers), nginx, SSL, Tailscale VPN, monitoring.

── ENTERPRISE WORK ──

• Email Automation — AI platform for Fortune 500 client. Content scraping → AI generation (Claude + GPT) → analytics scoring from 262 templates → editor UI. Flask, PostgreSQL, 49 tests.

• AI Agents — 2 agents on Dify with 28 API endpoints, anti-hallucination architecture. Claude Sonnet, Weaviate, Redis.

• Email Analytics — 620+ campaigns analyzed with GPT-4 Vision. Auto-generated PPTX/PDF reports.

• B2B LeadGen — Next.js + Python + 4 data sources. AI scoring via Claude API.

── LIVE APPS ──

• cosmodoc.a-van.info — Medical practice PWA (React, Express, Prisma)
• plant.a-van.info — AI plant care app (Next.js, tRPC, Claude Haiku)

Tech: Python, FastAPI, Flask, React, Next.js, NestJS, PostgreSQL, Redis, Docker, Claude API, GPT-4, n8n, Playwright

Steps for completing your project

After purchasing the project, send requirements so Aleksei can start the project.

Delivery time starts when Aleksei receives requirements from you.

Aleksei works on your project following the steps below.

Revisions may occur after the delivery date.

Architecture & Planning

Define features, design database schema, plan API structure, agree on UI approach and tech stack.

Frontend & Backend Development

Build React/Next.js frontend with responsive design, FastAPI/NestJS backend, PostgreSQL database, REST API.

Review the work, release payment, and leave feedback to Aleksei.