Anton V.

I build complete business systems end-to-end: from a conversation about the problem to a running platform — backend, web portal, integrations, automation and AI agents. One developer, the whole result, no hand-offs. WHAT I BUILD ⭐️ - Internal platforms, CRM & ERP — role-based web portals, reference data, multi-layer validation, audit logs. From requirements to production. ⭐️ - Business process automation — legacy terminals and desktop apps, web portals, document and email flows. The routine of a whole department turned into a scheduled job. ⭐️ - ntegrations & APIs — REST APIs, Google APIs, Zoho CRM, Telegram, banking APIs (EnableBanking), 1C. Everything talks to everything. ⭐️ - Data pipelines & web scraping — collection at scale, anti-bot bypass (Kasada, Akamai, hCaptcha), deduplication, normalization, straight into your production DB. ⭐️ - AI agents & LLMs — OpenAI / Claude embedded in real workflows: lead qualification, classification, extraction. With guardrails, not demos. RECENT WORK (NDA-safe) 📂 - BillingHub — HIPAA-compliant medical-billing platform for a US company (hospice & home health): CRM, RBAC, ICD-10 / CMS validation, automated claim collection from a legacy terminal. 35+ minutes of manual work per pass → thousands of claims collected on a schedule. Replaces the routine of dozens of staff. FastAPI · Next.js · PostgreSQL · Google Cloud. 📂 - Lead engine — keyword → scraping → spaCy + LLM qualification → ready leads in Zoho CRM. Fully hands-off. 📂 - Marine vessels catalog — 5 sources, 3-tier deduplication, batch writes into the client's production DB on AWS. 📂 - A2 exam booking bot — 50:1 competition for slots; books in 3–5 seconds. Telegram + Flask dispatcher + Selenium. 📂 - TikTok scraper — custom hCaptcha solver (~90%), 5 months running autonomously. Before Upwork I ran my own software company (2016–2022): online stores with 100k+ SKUs on Bitrix + 1C, CRM/ERP, a cargo-tracking service with a mobile app. Earlier — 8 years in executive roles. That is why I ask about the business problem first and the stack second. HOW I WORK • Spec first: I dig out the real problem before writing code — fewer surprises, predictable timelines. • Modular architecture: every service independent, so nothing breaks its neighbour and one task can grow into a platform. • Security by default: RBAC, 2FA, audit logs, secrets management, compliant cloud (BAA) when needed. • Clean, documented code delivered via GitHub. You own everything. STACK Python (FastAPI, Flask) · TypeScript, React / Next.js · Node.js · PostgreSQL, MySQL · Selenium, Playwright, Puppeteer · OpenAI, Claude, spaCy · Google Cloud, AWS · Docker, CI/CD Top Rated · 100% Job Success · 1,000+ hours on Upwork. Message me with the problem — not the spec. I will come back with a plan.