I build backend services, internal tools and automation systems using Python, Django/FastAPI and PostgreSQL.
5+ years of commercial development · 30+ completed projects
Python · Django · FastAPI · Flask
PostgreSQL · Redis · MySQL
Celery · Asyncio
Docker · Linux
REST API · OData · XML/SOAP · Webhooks
1C ERP · Wildberries / Ozon · Telegram · AI/LLM APIs
API integrations, internal tools and document workflows. Detailed case studies are available in Russian.
Import invoice spreadsheets into an ERP system without entering the same data twice.
My contribution: Built the Flask interface, spreadsheet processing, data validation, reference matching and OData integration.
Result: 12 hours of manual work saved per week, with invoice data transferred through OData.
Python · Flask · Pandas · OData API · Excel · 1C ERP
Case study (RU) →
One workspace for marketplace orders, shipments, labels, product marking and customer messages.
My contribution: Built the FastAPI backend, web interface, marketplace API integrations, labels, reports, roles and AI reply drafts.
Result: Order assembly became 3× faster, with daily operations in one interface.
Python · FastAPI · Jinja2 · Wildberries API · Pandas · openpyxl · httpx · Telegram Bot API · Docker
Case study (RU) →
Connect code ordering, DataMatrix label generation and document preparation in one workflow.
My contribution: Built the marking API integration, processing queue, PDF/XML document generation, ZIP export and access controls.
Result: Up to 100,000 codes per hour; batches of 50,000–100,000 processed in minutes.
Python · Flask · Product marking API · DataMatrix · ReportLab · Pandas · lxml · Celery / RQ · PostgreSQL · Docker
Case study (RU) →
Automate veterinary shipment documents and track their processing status.
My contribution: Implemented the API integration, reference data sync, background jobs with retries and error logging.
Result: Document status is tracked automatically, with errors collected in reports.
Python · FastAPI/Flask · PostgreSQL · Celery/RQ · XML/SOAP · Docker
Case study (RU) →
Collect receipt data through an API and generate reports by date, shift and organization.
My contribution: Built the Flask service, authentication, receipt API integration, data processing, Excel reports and export history.
Result: Automated receipt collection and consolidated Excel reports.
Python · Flask · Pandas · SQLAlchemy · MySQL · Receipt API
Case study (RU) →
Connect incoming trading signals, an operations dashboard and Telegram notifications.
My contribution: Built the backend and frontend, webhook processing, analytics dashboard, Telegram bot and price tracking.
Result: Webhook processing, analytics and notifications connected in one service.
Flask · MySQL · Async/Aiohttp · PHP · Java
Case study (RU) →REST APIs, OData, XML/SOAP and webhooks. My work includes ERP document imports, marketplace operations, receipt data and regulated document workflows.
Data validation, reference matching, background jobs, retries, status tracking and error reports. I make integration failures visible so they can be resolved.
I turn spreadsheet imports, document preparation, order operations and reporting into repeatable workflows. I can build a new service or extend an existing Python project.
I connect AI APIs to business data, internal tools and existing services.
In WB Giga, an AI assistant generates reply drafts alongside customer chats, questions and reviews. Other tasks we can discuss include request classification, document analysis, internal search and report generation.
The starting point is the workflow: where the data comes from, how the output is checked and what happens next.
A practical integration inside the seller’s daily workspace.
Read the case study (RU) →Review the workflow, current code and integration constraints.
Agree on scope, architecture, milestones and delivery format.
Develop in short iterations and share working demos.
Deploy, document the system and support it after launch.
Tell me about the product, the task and the kind of collaboration you have in mind. Moscow, UTC+3.