Remote · Open to Relocation · MSK (UTC+3)
Yuliy Mitryashkin

Yuliy Mitryashkin

Python Backend Developer

jmiki.dev@gmail.com +7 999 226-27-38 @jmiki JM1k1

Python Backend Developer with 3 years of commercial experience building and operating backend services and integrations. Focused on reliable API-driven systems, data synchronization, and automation workflows.

Selected Highlights impact & scale

  • Automated marketplace operations and catalog synchronization; processed 10,000+ SKUs/day.
  • Designed fault-tolerant synchronization pipelines for stock and price updates, improving update latency and data consistency.
  • Built and operated production deployments on VDS/VPS using Docker and GitHub Actions (CI/CD); supported Linux-based operations.
  • Built a support chatbot for a nonprofit organization; improved response speed and structured request intake (letter of appreciation, May 2023).

Experience timeline

Python Backend Developer (NDA) — E-commerce / Marketplace Seller Automation (Yandex Market)

Remote 2024 – Present
  • Built and maintained a backend platform automating operations for a large marketplace seller: orders, products, product listings (cards), inventory, and pricing.
  • Implemented scheduled and incremental synchronization pipelines with Yandex Market API; handled rate limits and implemented retries/backoff for resilient processing of updates and events.
  • Developed services for catalog and stock updates, price recalculation, and fast propagation of price changes across listings.
  • Implemented cron-based jobs and parsing pipelines to validate/enrich product data.
  • Designed and optimized PostgreSQL schema and queries with SQLAlchemy; managed database migrations with Alembic.
  • Automated deployments via GitHub Actions (CI/CD) and improved observability with structured logging and monitoring (Grafana).
  • Impact: improved synchronization latency and reliability; processed 10,000+ SKUs/day.

Team Lead / Diploma Project Supervisor (Python Backend), Yandex Practicum

Remote 2023 – 2024
  • Led delivery teams on real-world capstone projects for external stakeholders (primarily nonprofit organizations).
  • Gathered requirements with clients and translated needs into clear specs, user stories, and acceptance criteria.
  • Owned delivery process: decomposed scope into tasks, prioritized backlog, managed Kanban board, and tracked iterations/sprints.
  • Facilitated weekly demos and project communication with stakeholders.
  • Coordinated with QA and design teams; managed feedback flow and ensured alignment.
  • Performed code reviews for Python backend work and managed deployments to deliver stable milestones.

Code Reviewer / Mentor (Python Backend), Yandex Practicum

Remote 2022 – 2023
  • Reviewed students’ pull requests and provided actionable feedback on code quality, readability, and maintainability.
  • Guided improvements in API design, architecture decisions, and edge-case handling.
  • Helped with debugging and encouraged clean code and testing practices.

Freelance Developer — Community Automation Bots (Telegram / Discord / VK)

Remote 2019 – 2022
  • Built community automation (moderation, notifications, and integrations) and event-driven workflows with webhooks.
  • Developed parsing/scraping pipelines and scheduled jobs to collect updates and trigger alerts.
  • Integrated with third-party APIs, handling rate limits and implementing retries/backoff; deployed and maintained services on VDS/VPS infrastructure for 24/7 operation.

System Administrator (part-time), Gaming Club

Saint Petersburg 2018 – 2020
  • Deployed and maintained LAN/Wi-Fi infrastructure, routing, and internet connectivity.
  • Implemented QoS and traffic policies to keep network performance stable under peak load.
  • Segmented networks for guests and staff devices to improve security and reliability.

Early Experience — Smart Home & IoT Integrations

Saint Petersburg / Remote 2016 – 2018
  • Delivered smart home integrations and automations using MQTT, Node-RED, and HomeKit/Homebridge tooling; built event-driven notification workflows (incl. Telegram).
  • Enhanced an intercom setup with motion-triggered alerts and rich notifications to Apple devices.

Education background

The Bonch-Bruevich Saint Petersburg State University of Telecommunications
Software Engineering (incomplete), 2017 – 2020
Saint Petersburg, Russia

Languages communication

Russian — Native
English — Upper-Intermediate (B2)
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