Олексій

Alex Suvertok
Python Backend Developer
Vinnytsia, Ukraine
[відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація»)

PROFESSIONAL SUMMARY
Python Backend Developer with 8 years of commercial experience delivering scalable, data-intensive backend systems with
Python, Django, Django REST Framework, PostgreSQL, Redis, Celery, and Docker. Focus areas include backend architecture,
database design, REST APIs, asynchronous processing, data pipelines, integrations, performance optimization, and automated
testing. Strong hands-on background in PostgreSQL query optimization, TimescaleDB, Celery workflows, caching, and large
datasets.
WORK EXPERIENCE
WebCase
Python Backend Developer | Aug 2025 – Present
• Owned backend and database development for a data-intensive SaaS platform built from scratch, contributing to architecture
decisions.
• Designed PostgreSQL data models, relationships, indexes, constraints, and migrations for systems handling millions of records,
enabling reliable storage and retrieval at scale.
• Applied Django ORM features such as select_related, prefetch_related, annotations, aggregations, and bulk operations to improve
query efficiency.
• Shaped TimescaleDB structures with hypertables, indexes, time-series queries, and aggregation workflows for large datasets.
• Created CSV and data-processing pipelines covering parsing, validation, bulk operations, error handling, and asynchronous
execution.
• Delivered REST APIs and data-preparation pipelines that feed frontend charts, tables, and visualizations.
• Orchestrated background and periodic processing with Celery and Redis, including task chains and groups.
• Improved performance through API caching, N+1 query elimination, database optimization, indexing, and serialization
improvements.
• Achieved 95%+ automated test coverage across models, APIs, and business logic, reducing the amount of untested backend code.
• Processed 1 million+ source rows for a single object through optimized database and bulk-processing workflows, supporting
large-scale data imports.
• Collaborated through Git Flow, GitHub Actions, code reviews, and architecture discussions.
Regulus Team
Python Backend Developer | Oct 2020 – Apr 2025
• Delivered Django/DRF functionality across serializers, ViewSets, APIViews, permissions, filters, pagination, signals, middleware, and
management commands.
• Created REST APIs, business logic, administration workflows, reporting, and automation for SaaS applications.
• Implemented authentication and authorization for multi-role workflows.
• Ran asynchronous workloads with Celery, added Redis caching, and enabled real-time features with Django Channels and
WebSockets.
• Connected Telegram services and implemented a Telegram bot using the Telegram API.
• Integrated 5+ external platforms and APIs, enabling payment, document-signing, scheduling, AI, and messaging workflows.
• Automated web scraping, data collection, and synchronization with Selenium and external APIs.
• Applied PostgreSQL indexes, constraints, transactions, aggregations, EXPLAIN/query plans, and row-level locking with
select_for_update.
• Handled DICOM data including file storage, basic processing, and transfer to downstream services.
• Refactored reusable backend components and legacy code to improve performance and maintainability.
• Supported deployments and production troubleshooting with Docker, Nginx, Gunicorn, and CI/CD.
Regulus Team
Junior Python Developer | Apr 2019 – Sep 2020
• Designed Django models, migrations, PostgreSQL schemas, relationships, and indexes for multi-relational applications.
• Extended CRUD APIs with Django REST Framework, covering serializers, permissions, pagination, and dynamic business logic.
• Used Django ORM, PostgreSQL, Git, Pytest, and Postman throughout development and QA workflows.
• Shipped production changes through pull requests and CTO-reviewed code reviews.
Regulus Team
Trainee Python Developer | Oct 2018 – Mar 2019
• Designed PostgreSQL schemas, relationships, and indexes for application prototypes.
• Created prototype REST APIs with Django REST Framework and verified application logic with Pytest and Postman.
ЕкоДім
CRM Administrator | Feb 2018 – Jul 2018
• Configured OneBox CRM pipelines and connected business workflows for sales and delivery processes.

Alex Suvertok · Python Backend Developer Page 1

TECHNICAL SKILLS
Python Django DRF / REST API

8 years
8 8 years
8 8 years
8
PostgreSQL Celery Pytest

8 years
8 8 years
8 8 years
8
Git / Linux Redis WebSockets

8 years
8 8 years
8 8 months
8
TimescaleDB Selenium Wagtail CMS

6 months 6 months 6 months

AI CODING AGENTS
Codex 1 year

OpenCode 6 months

Claude Code 6 months

Hands-on use of AI coding agents for implementation, debugging, testing, refactoring, and code review. Generated changes are
reviewed and validated with automated tests and manual checks.
EDUCATION
Master's Degree in System Analysis — Vinnytsia National Technical University · 2018–2019
Specialization: Consolidated Information / Business Intelligence
Bachelor's Degree in Information Security Management — Vinnytsia National Technical University · 2014–2018
CERTIFICATIONS
• Career Certification — Main Academy, 2017
• Web Development — Vinnytsia National Technical University, 2016
HONORS & ACHIEVEMENTS
• Superfinalist — World Cup in Decision Logic for Mathematical Problem, Paris, France, 2013
• Finalist — World Cup in Decision Logic for Mathematical Problem, Vinnytsia, Ukraine, 2013, 2015
LANGUAGES
English — B1 (Intermediate) · Ukrainian — Native
INTERESTS
Chess · Football · Board Games · Numismatics · Organizing and hosting sports Mafia games and tournaments

Alex Suvertok · Python Backend Developer Page 2