Open to new opportunities

Backend developer
who ships systems to production

2.5+ years of commercial experience with Python (FastAPI) and PHP (Yii2). I design APIs, hunt down N+1 queries and deadlocks, build queues on RabbitMQ/Celery, and take products all the way to real users.

2.5 yrsof commercial development
50+API routes covered by tests
×4geo-algorithm speedup
whoami.py
1class Developer:
2  name = "Daniil Davydov"
3  handle = "Ba1Kerrr"
4  role = "Backend Developer"
5  stack = ["FastAPI", "PostgreSQL",
6        "Redis", "RabbitMQ", "Celery"]
7  focus = ["highload", "clean architecture"]
8
9# status: available for hire
10print(f"Ready to ship.")
Python FastAPI PHP / Yii2 PostgreSQL SQLAlchemy Redis RabbitMQ Celery Docker GitHub Actions Pytest MS SQL

An engineering approach to backend

I design REST APIs following Clean Architecture, SOLID, and the Repository Pattern. I optimize performance, build async processing on queues, and cover logic with tests — from unit to E2E.

Full story →
tests/
$pytest app/tests/ -v
collected 340 items
340 passed in 41.2s
coverage: 97%

Technologies & practices

From architecture and databases to queues, testing, and DevOps.

⚙️

Backend

PythonFastAPIPHPYii2REST APIJWT / OAuth2
🗄️

Databases & queues

PostgreSQLMySQLMS SQLMongoDBRedisRabbitMQCeleryKafka
🏗️

Architecture & practices

Clean ArchitectureSOLIDRepository PatternMicroservicesEvent-Driven
🐳

DevOps & tools

DockerDocker ComposeKubernetesNginxCI/CDGitHub ActionsSentry

Testing

PytestPHPUnitPlaywrightLocusthttpx.AsyncClient
🔧

Git & APIs

GitGitHubPostmanSwagger / OpenAPIWebSocketsgRPC

Projects

Products whose architecture and backend I've built.

💞
In development

SoulMates

AI-powered dating platform: ML-based matching (LightGBM), 30+ psychological tests, a couples ecosystem, integrations, premium subscriptions, WebRTC calls, real-time chat, and 6-level anti-doxxing protection.

FastAPIPostgreSQLCeleryLightGBM
🚗
Production

Service center platform

Client-facing app and internal app for service center staff. Geo-search with timezone detection, order flows, an API-key system, and integration tests for 50+ routes.

PHPYii2MS SQLRedis

Have a backend challenge?

Open to full-time roles, part-time work, and interesting freelance projects — APIs, bots, integrations, highload optimization.

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