DWG Resume · Senior Python Developer · Backend / High-Load / Billing

Mikhail Matveev.

Senior Python backend engineer. 12+ years on Python, 16+ years of professional IT experience. I build backend services and APIs, design architecture, optimize PostgreSQL and async pipelines. Solid background in both highload (billing, production-critical migrations) and regular product teams.

M-01 · billing regression

×50_

billing test speedup

M-02 · postgres tuning

×3—20

PostgreSQL optimization

M-03 · years in IT

16+

test coverage 90+

Contact Projects OPEN TO WORK

∅ 001 · A4·landscape

checked: 08.07.26

GITLAB CI· ANSIBLE· POSTGRESQL· REDIS· DJANGO· FASTAPI· DOCKER· PYTHON· CELERY· RABBITMQ· GITLAB CI· ANSIBLE· POSTGRESQL· REDIS· DJANGO· FASTAPI· DOCKER· PYTHON· CELERY· RABBITMQ·

§ 02 · MATERIALS

Specification
of components

Technologies with the most production time logged.

Top stack

GitLab CI Ansible PostgreSQL Redis Django FastAPI Docker Python Celery RabbitMQ

Full stack

§ 03 · ASSEMBLY HISTORY

Experience
by sections

Timeline ↓ from the current role. Each entry is a separate node with its own stack specification.

NODE

COMPANY

ROLE

PERIOD

RESULT / STACK

N.04

Bolshaya Troyka

Moscow · Remote

Python Developer

04.2022 → live

Backend services on Python/Django, REST API design, modular architecture, ownership of a large legacy system.

30–60% test speedup, coverage raised to 90+
PostgreSQL tuning: 3–20x query speedup
OpenSearch and Manticore Search integration
Tech-debt reduction, looser module coupling, fewer regressions
CI/CD: GitLab CI setup, deploy automation via Ansible
Production ownership: releases, monitoring, hotfixes

GitLab CI Ansible Pytest PostgreSQL Redis OpenSearch Manticore Search Django Docker Linux Git Python Celery RabbitMQ

N.03

DataArt

Remote

Middle+ Python Developer

09.2020 → 04.2022

Backend services and REST APIs for enterprise projects.

ORM and SQL query tuning (Django ORM / SQLAlchemy)
PostgreSQL tuning: indexes, performance analysis
Integrations with external and internal services
Monitoring: metrics, dashboards and alerts in Grafana

Jenkins PostgreSQL Django SQLAlchemy Docker Git Python Grafana

N.02

MegaFon

Krasnodar

Billing Platform Engineer

07.2014 → 09.2021

Development and ownership of a highload telecom billing platform. Core billing, rating, production-critical migrations with zero downtime.

In-house billing regression testing framework — 50x+ faster tariff rollout, adopted as the internal standard
PostgreSQL and Oracle tuning: bottleneck analysis, SQL rewrite
Backend services and automation tools on Python/Django
Async processing: Celery, Redis, RabbitMQ
CI/CD: deploy automation in Kubernetes/Helm
Architecture: design contributions, code review

PostgreSQL Redis Oracle PL/SQL Django Docker Kubernetes Helm Linux Git Python Grafana ELK Stack Sentry Celery RabbitMQ

N.01

Early career (2009–2014)

System Administrator / Billing Systems Engineer

10.2009 → 07.2014

Billing system support and development: rating, calculations, Java tooling.

Highload telecom billing system
Rating and financial calculation logic support
In-house Java tooling for tariff testing
10x+ faster product rollout
Server and network infrastructure administration

Oracle PL/SQL Linux Java

∑ years in IT · 20+

Full timeline

§ 04 · SIDE ARTIFACTS

Personal
side projects

One open-source as code sample; the other two have closed source but I can discuss in detail.

art-001 · 2024 [open-source]

growbox-espidf

Native ESP-IDF v6.0 smart growbox firmware, written from scratch: 17 sensor types, 8-pump mixer ±0.01 g (HX711), on-device Web UI (Vite + Vanilla JS), OTA, Home Assistant MQTT Discovery.

Chart.js FreeRTOS Vite ESP-IDF ESP32

Open spec

art-002 · 2023 [private · live]

ponics.online

Hydroponics platform: 3 Telegram bots, 2 nutrient calculators (Fertilizer/OHPG) and more. Django + Wagtail + TimescaleDB + MQTT + Celery, zero-downtime via Traefik.

TimescaleDB PostgreSQL Redis Bootstrap DRF

Open spec