Open to opportunities

Николай Белоус

@0002287

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Senior Data Engineer driving scalable data platforms and robust financial analytics.

Armenia

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What I'm looking for

I seek roles where I can lead data platform modernization, mentor teams, and build reliable, scalable data solutions for financial systems.

I am a Senior Data Engineer with deep experience building and operating scalable data platforms for banking and fintech, leading migrations and modernizing critical reporting pipelines.

I led a large-scale migration from SAS to a Hadoop-based Data Lake and developed reusable Airflow components (SFTP ingestion, metadata-driven dynamic DAGs), integrated streaming with Kafka, and supported regulatory reporting workflows.

I mentor teammates, drive best practices in Python, SQL, and data modeling (including Data Vault 2.0 concepts), and contribute to platform products using PostgreSQL, Docker, Kubernetes, FastAPI, and CI/CD.

Experience

Work history, roles, and key accomplishments

Current

Senior Data Engineer

Current

Raiffeisen Bank International AG

May 2022 - Present (3 years 10 months)

Led migration from SAS to a Hadoop-based Data Lake and replatformed critical reporting pipelines, improving maintainability and performance; developed secure Airflow components and mentored team members to harden production data workflows.

HDFS Hive Spark PySpark Apache Airflow Python Kafka PostgreSQL Docker

Data Engineer

Gazprombank

Dec 2021 - Mar 2022 (3 months)

Developed scalable Spark data processing applications for financial analytics, optimized SQL data marts for performance, and standardized Git workflows to improve team collaboration.

Apache Spark SQL Optimization Code Review Git Data Marts Performance Tuning Documentation

Data Engineer

CloudPayments

Aug 2021 - Nov 2021 (3 months)

Built and maintained ETL pipelines with Apache NiFi, designed Greenplum data marts for finance/product teams, and implemented reconciliation processes to ensure data consistency across sources.

Apache NiFi Greenplum ETL Data Reconciliation MongoDB SQL System Analysis

Data Engineer

Centre for Strategic Planning of FMBA of Russia

Aug 2020 - Sep 2021 (1 year 1 month)

Designed and implemented a PostgreSQL medical data warehouse with automated schema generation and reusable ETL pipelines, resolved critical MongoDB ingestion issues, and delivered comprehensive maintainability documentation.

PostgreSQL ETL Docker Django MongoDB Documentation Data Warehouse

Education

Degrees, certifications, and relevant coursework

National Research University of Electronic Technology (MIET)

Bachelor's degree, Electrical and Electronics Engineering

2016 - 2020

Bachelor's degree in Electrical and Electronics Engineering completed from September 2016 to September 2020, providing a foundation in electronics and engineering principles relevant to data engineering.