Andrii

Hi, i’m Ukraine, Chernivtsi

Andrii Bilyk Phone: [open contact info](look above in the "contact info" section)
Email: [open contact info](look above in the "contact info" section)
Telegram: @ghhhfgg

Technology stack Backend Developer | Python / GO
4+ years of commercial experience building production services and SaaS platforms. Built
Python: FastAPI, asyncio, third-party integrations, adtech automation, GPU/media-processing pipelines and services
SQLAlchemy, Celery, based on microservice and event-driven architectures.
Django
Experience
Go: Gin, Go-Zero Software Engineer - Your R&D (remote) - Jun 2024 - Sep 2026

Backend: REST API, Owned backend features end-to-end: requirements clarification, technical design,
Microservices, DDD, SOLID, implementation, testing, deployment and production monitoring.
Event-driven architecture Developed asynchronous backend services using Python, FastAPI, asyncio,
SQLAlchemy, PostgreSQL, Redis, Celery and RabbitMQ.
Data: PostgreSQL, Redis.
Built internal automation for advertising and media-buying workflows, including
Messaging: RabbitMQ, integrations with Keitaro and third-party advertising APIs.
Celery, background jobs Implemented campaign management, analytics ingestion, postbacks and
idempotent webhook processing.
DevOps: Docker, Docker
Improved integration reliability through validation, retries, rate-limit handling,
Compose, Kubernetes,
error recovery and structured logging.
Linux, Nginx, GitHub Actions
Designed queue-driven pipelines and background workers for analytics, media
Monitoring: Grafana, processing and long-running operations.
Prometheus, structured Developed lightweight Go/Gin microservices for external API processing and
logging asynchronous communication with PHP systems.
Built FFmpeg-based media-processing pipelines and automated GPU workloads
Other:
PHP/Laravel/Symfony,
using Vast.ai.
JavaScript, Vue.js, React, Integrated GPT API and RAG workflows into advertising analytics and funnel
GPT/LLM integrations automation.
Optimized PostgreSQL/MySQL queries and Redis caching, containerized
Education services with Docker and investigated production incidents through logs and
monitoring.
Dec 2021 - Dec 2023
Maintained Laravel, Symfony and Yii2 applications and developed integrations with
Master’s degree, Computer Zoho CRM, banking APIs, Bolt and Uklon.
Science - Chernivtsi Full-Stack Developer - GabSoft (Chernivtsi) - Jun 2023 - Mar 2024
National University
Developed REST APIs and backend services for B2B SaaS, logistics and
e-commerce applications.
Language Worked with event-driven architecture, DTOs, third-party integrations and SQL
databases.
English (B2)
Applied SOLID principles and used Grafana and Prometheus for monitoring and
Ukrainian (Native) production debugging.
WordPress Developer - Freelance (Remote) - Mar 2021 - May 2022
Developed custom WordPress and WooCommerce websites using PHP,
JavaScript, Elementor and ACF.
Built custom themes, responsive interfaces, API integrations and e-commerce
functionality.
Deployed and maintained projects using AWS Lightsail, EC2 and S3.
Achievements

All Ukrainian students scientific competition (2nd place) - trading system based on
LSTM algorithm, which make correction for crypto trading actions (based on
MA\EMA indicator).