Available for work · open to relocation

Iakov Zubekhin/Backend & AI/LLM Engineer & Fullstack

I build the systems your product runs on.

From LLM assistants and video streaming to SIP telephony and multi-provider payments — I design and ship the backend your product depends on.

Brasília, Brazil · open to relocation & remote
See selected workStart a conversation
Photo of Iakov Zubekhin
01

How I can help

I design, ship to production and maintain the systems that have to hold up under real load.

Typical projects: LLM assistants and RAG search, real-time chat and streaming, payment and POS integrations, and SIP telephony. I work in Python with Django, DRF and FastAPI, and I care about reliability, performance and clean systems that survive production — not demos.

Over 4 years I've delivered 18+ production products across food delivery, retail, edtech, smart-building and real estate. Backend is my core, but I own the full stack when a project needs it — React/Next.js on the web, and Flutter, Kotlin and Swift on mobile.

Education

MSc, Aerospace Engineering — Moscow Aviation Institute

B2B / Contract

Available for contract work through my registered company — Iakov Zubekhin LTDA · CNPJ 66.795.280/0001-80

4+
Years shipping to production
18+
Products shipped
02

Selected work

A few of the harder problems I've shipped. Tap a card to expand.

Problem

Shoppers needed accurate product answers and recommendations — grounded in the live catalog, with no made-up specs.

Approach

Built a full MCP tool-agent over hybrid retrieval — PostgreSQL full-text search fused with pgvector (HNSW) — with claim/number validation that blocks anything not in the catalog. A structured intent classifier routes requests; answers stream over WebSocket, and an e2e/regression harness with deterministic replay keeps quality measurable.

Impact

An assistant that answers and recommends strictly from the live catalog — no hallucinated specs — with a ChatGPT-style streaming UX and measurable quality gates.

DjangoDRFMCPChannelsPostgreSQL FTSpgvectorHNSWCelery
03

Stack

The tools I reach for, grouped by what they do.

Backend

  • Python
  • Django
  • DRF
  • FastAPI
  • Celery
  • Django Channels
  • pytest

Data & Search

  • PostgreSQL
  • PostGIS
  • pgvector
  • Redis
  • SQLAlchemy
  • S3 / MinIO

AI / LLM

  • RAG
  • Vector search
  • Embeddings
  • LLM orchestration
  • Tool calling
  • Streaming

Real-time & Telephony

  • WebSockets
  • Daphne / ASGI
  • Asterisk
  • PJSIP
  • SIP
  • HLS

Payments & Integrations

  • Stripe
  • Telegram Bots
  • iiko
  • Apple Pay
  • Twilio
  • Push (FCM/APNs)
  • +14 more

DevOps & Infra

  • Docker
  • Docker Compose
  • GitLab CI/CD
  • nginx
  • Sentry
  • Ubuntu

Mobile

  • Flutter
  • Dart / BLoC
  • Kotlin
  • Swift / RxSwift
  • Firebase

Frontend

  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • HTML / CSS / JS
04

Experience

Backend / Fullstack Engineer

SMD Agency
CurrentOct 2023 — Present
Remote · Moscow
  • Backend for production iOS/Android/Web apps on Django/DRF and FastAPI.
  • Shipped an AI assistant (MCP tool-agent, hybrid catalog retrieval, streaming), real-time chat/notifications and background pipelines.
  • Integrated payments (Stripe, Square), POS/CRM (iiko, amoCRM) and telephony; ran CI/CD and production support.

Backend / Fullstack Engineer

Svetorezerv

Sep 2022 — Dec 2023
Moscow
  • Built an AI video-streaming platform and a smart procurement-automation system (Django/Channels, Celery).
  • Signed HLS playback, Stripe billing, S3/MinIO media and an automated multilingual dubbing pipeline.
  • Procurement automation: supplier discovery, RFQ generation, response classification and AI-assisted proposal comparison.
05

Let's work together

Open to full-time, contract and remote work — and relocation. Tell me what you're building, and I'll tell you how I'd ship it.

B2B / Contract cooperation

Iakov Zubekhin LTDA · CNPJ 66.795.280/0001-80

Languages
  • Russian — Native
  • English — Intermediate
  • Portuguese — Intermediate
Download CV (PDF)