# Vadym Kolodiazhnyi

Vadym Kolodiazhnyi is a remote worker on Himalayas, Python Software Engineer at SpaceCrew Finance Company, based in Ukraine.

Source: https://himalayas.app/@vadymkolodiazhnyi

```text
Python Software Engineer focused on high-performance APIs, microservices, and data pipelines using Python, PySpark, and Azure/GCP.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Ukraine |
| Authorized to work in | Ukraine |
| Job categories | Software Engineer, Backend Engineer, Big Data Engineer, Data Engineer, Senior Python Engineer, Python Backend Engineer, Python Developer, Software Engineer |
| Skills | Python, gRPC, Pandas, OpenCV, PySpark, Apache Spark, Flask, RabbitMQ, Docker Compose, Docker, SQL, Microsoft SQL Server, Azure, GCP, Azure Data Factory, PostgreSQL, Django, Django REST Framework, Microservices Architecture, Cloud Migration, Data Security, Caching, Performance Optimization, Blue Prism, Factory |

## What I'm looking for

```text
I’m looking for a team where I can build and optimize Python services and data pipelines—improving performance, cost, and reliability—while working on cloud-native microservices and practical data security with strong engineering collaboration.
```

## About

```text
I’m a Python Software Engineer who automates workflows and optimizes system performance through clean, reliable backend services and data pipelines. I maintain and enhance a core product built with Python (Flask), where I improved response times and system throughput by 20% by identifying and resolving performance bottlenecks.

I also design solutions that reduce operational cost and speed up delivery—building a caching layer for sensitive customer data and optimizing API gateway usage to reduce paid request volume by 19% and cut operational costs by ~25%. Across projects, I’ve migrated monolith systems to Azure microservices, aligned security for sensitive medical data, reduced cloud costs by 17%, and refactored legacy codebases to boost execution speed 3x.
```

## Experience

### Python Software Engineer (current)

SpaceCrew Finance Company. Oct 2024 - Present

```text
Maintained and enhanced a Python/Flask core product, improving response times and increasing system throughput by 20%. Designed a caching layer for sensitive customer data and migrated inter-service communication from REST to RabbitMQ, reducing paid request volume by 19% and operational costs by ~25%.
```

Skills: Python-3, Flask, Microsoft-SQL-Server, Docker-Compose, RabbitMQ, Caching, Performance-Optimization

### Big Data Engineer

[Vizient](https://himalayas.app/companies/vizient-inc). Jun 2023 - Nov 2023

```text
Migrated an on-premise monolith to Azure, split it into microservices, and aligned security controls for sensitive medical report data. Used Azure Data Factory, PySpark, and SQL Server to move jobs to Azure and reduce cloud costs by 17% while optimizing PySpark workloads.
```

Skills: Apache-Spark, PySpark, Azure-Data-Factory, SQL-Server, Cloud-Migration, Microservices, Data-Security

### Python Engineer

[Blue Prism](https://himalayas.app/companies/ss-c-blue-prism). Oct 2021 - May 2023

```text
Built an automation framework that recorded customer activities and transformed data streams into robot-executable processes using Python, gRPC, and pandas. Refactored a legacy codebase, reducing technical debt and boosting execution speed by 3x.
```

Skills: Python-3, Pandas, gRPC, OpenCV, Azure, Docker, Automation-Framework, Refactoring

### Python software engineer

Ana Movie. Jul 2020 - Oct 2021

```text
Developed a movie information system using Python 3, Django REST Framework (DRF), and Docker.
Optimized query performance for handling large datasets. Implemented a tree structure for quick movie
name suggestions, enhancing user experience. Used Pandas for fast ETL processes, enabling efficient
data processing, selection, and grouping.
```

Skills: Python, Django, Docker, Docker-Compose, PostgreSQL, Algorithms

## Education

### Kharkiv National University of Radioelectronics

Master's Degree in Computer Science (Software Engineering), Computer Science (Software Engineering). 2025 - Present

```text
Enrolled in a Master's program in Computer Science (Software Engineering) at Kharkiv National University of Radioelectronics, starting in 2025 with expected completion in 2027.
```

### Kharkiv National University of Radioelectronics

Bachelor's Degree in Software Engineering, Computer Science (Software Engineering). 2018 - 2022

```text
Completed a Bachelor's degree in Software Engineering at Kharkiv National University of Radioelectronics from 2018 to 2022.
```

## Tech stack

- Apache Spark
- Docker Compose
- Pandas
- PySpark
- DB
- PostgreSQL
- Microsoft SQL Server
- Gmail
- Django
- OpenCV
- Python
- RabbitMQ
- Django REST framework
- gRPC
- SQL
- Increase
- Factory
- Objective
- Remote
- Blue Prism

To contact Vadym, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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