# Vadym Humeniuk

## Python Backend Engineer

Kyiv, Ukraine · Remote  
+380 681 163 022 · v.humeniuk96@gmail.com

### Profile

Backend engineer building scalable enterprise applications and startup software. Background spans document-processing and OCR pipelines, data-analysis frameworks for clickstream and advertising attribution, organization-wide end-to-end testing, and cloud-native serverless and containerized applications.

Deep experience with Azure and AWS. Confident across the Python stack, including migrations of legacy Django applications to FastAPI.

## Experience

### Metinvest Digital — Backend Software Engineer (Python)
**May 2025 – Present · Remote, Kyiv, Ukraine**

- Key engineer on a document-processing platform orchestrating OCR operations, SAP data, and Generative-AI verification.
- Architected a Django → FastAPI migration that delivered a **2× increase in feature delivery velocity** while keeping legacy SAP workflows regression-free.
- Owned backend implementation for search, status management, and revision flows while maintaining a stable API contract.
- Combined OCR and OpenAI APIs for advanced PDF classification, improving accounting-department productivity by **up to 20%**.
- Revamped background-workflow architecture with timeouts, async retry handling, and observability to reduce errors.
- Built invoice-data parsing for complete information extraction and improved operational velocity.

### TC Financial Resources dba Reach Global Media — Backend Software Engineer (Python, Go)
**September 2024 – March 2025**

- Built a Python data-analysis framework correlating MongoDB with Facebook, Shopify, Google Ads, WordPress, and ClickFunnels APIs for unified attribution and funnel reporting.
- Improved technical-support handling speed by **5×** through team adoption of the framework.
- Designed a Go + gRPC service aggregating data across internal microservices, backed by DynamoDB and MongoDB.
- Delivered end-to-end product features including ClickFunnels Portal API, gRPC, and background workers.
- Mentored QA on BDD testing with Python, Behave, and GitHub Actions.

### Dynamicka Development — Backend Software Engineer (Python)
**2022 – 2024**

- Delivered backend systems across real estate, document management, IoT, and EdTech projects.
- Owned API design and AWS infrastructure; contributed to architecture standards and mentoring.
- Built a real-estate SaaS platform and AI assistant with Django, DRF, PostgreSQL, OpenAI API, and Slack webhooks.
- Built a FastAPI document-generation SaaS with PostgreSQL, SQLAlchemy, Jinja2, React.js, and Stripe.
- Designed a serverless solar-telemetry ingestion platform with AWS Lambda, SQS, DynamoDB, IoT Core, CloudFormation, and Terraform.
- Built BDD test automation with Selenium, Behave, Python, and GitLab CI/CD.
- Developed Telegram automation and marketing tools with Python, Telethon, and Telegram APIs.

### ARK Connect & Market Group — Software Developer
**2021 – 2022**

- Built customer-facing Telegram bots, browser automation tools, and programmable web services for internal business needs.

## Core skills

**Backend:** Python, FastAPI, Django, Django REST Framework, SQLAlchemy, REST APIs, OpenAPI, Go, gRPC  
**Data:** PostgreSQL, MSSQL, DynamoDB, MongoDB, MySQL  
**Cloud & infrastructure:** AWS Lambda, SQS, S3, IoT Core, Azure Functions, Blob/Queue Storage, Docker, Kubernetes, Terraform, CloudFormation  
**Integrations:** OpenAI / Azure OpenAI, OCR/document pipelines, SAP OData, Stripe, Slack, Shopify, Google Ads, Facebook APIs  
**Testing & delivery:** pytest, Selenium, Behave, GitHub Actions, GitLab CI/CD, code reviews, mentoring

## Education

- Khmelnytskyi Polytechnic College — 2013
- Yarmolyntsi Technological Lyceum — 2011

## Languages

- Ukrainian — native
- English — B2

## Working style

Backend-focused, product-oriented, comfortable in cross-functional teams, experienced with startup MVP delivery and large enterprise teams.