Open to opportunities

Hayk Petrosyan

@haykpetrosyan

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Data Engineer and BI Specialist building ETL pipelines and actionable intelligence.

Armenia

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What I'm looking for

I’m looking for a role where I can own ETL and data workflows end-to-end—building reliable pipelines in Airflow, modeling for analytics, and turning data into clear Power BI insights that support real decisions.

I’m a Data Engineer & BI Specialist with 8+ years of experience building ETL pipelines, orchestrating data workflows with Apache Airflow, and delivering actionable business intelligence with Power BI/DAX. I bring strong SQL and Python automation, with hands-on experience across OLAP/OLTP modeling, and I’ve worked end-to-end from individual contribution to technical mentoring.

At Digitain (Dec 2022–Present), I built and maintained ETL pipelines integrating structured and semi-structured sources, orchestrating multi-step workflows by scheduling DAGs, managing dependencies, and monitoring pipeline health. I also designed and optimized OLAP warehouses and OLTP databases for both real-time and batch analytics, while using Python to automate operations like web scraping, job scheduling, and JSON transformation—reducing manual pipeline intervention through Airflow-driven automation.

Earlier, I developed SQL-based telecom and credit risk analytics pipelines, including stored procedures, views, and Power BI dashboards for executive KPI visibility. I’ve progressed through risk-focused roles, contributed to credit risk scoring and portfolio analysis, and even taught—delivering sessions on Power BI, SQL, and Python and mentoring students on real-world BI data practices.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Digitain

Dec 2022 - Present (3 years 7 months)

Built and maintained ETL pipelines integrating structured and semi-structured sources. Orchestrated multi-step workflows with Apache Airflow and designed OLAP/OLTP data models for real-time and batch analytics.

ETL Data Pipelines Apache Airflow DAGs Workflow Orchestration Data monitoring OLAP OLTP Web Scraping job scheduling AWS S3 AWS RDS AWS Lambda

Risk Management & Data Analysis Specialist

Global Credit UCO CJSC

Jan 2021 - May 2022 (1 year 4 months)

Built SQL-based reporting pipelines and dashboards supporting credit risk decisions. Performed business process analysis and quantitative risk evaluations for management.

SQL Pipelines Dashboards Credit Risk Analytics Business Process Analysis Risk Analysis

Cashier

Good Credit UCO CJSC

Jan 2016 - Jan 2020 (4 years)

Progressed through cashier, credit risk analyst, and risk & BPA specialist roles while building expertise in credit risk scoring and portfolio analysis. Contributed to designing risk models and evaluating lending risks to reduce default exposure.

Credit Scoring Portfolio Analysis Model Evaluation Lending Risk Assessment

Credit Risk Analyst

Good Credit UCO CJSC

Jan 2016 - Jan 2020 (4 years)

Progressed through cashier, credit risk analyst, and risk & BPA specialist roles while building expertise in credit risk scoring and portfolio analysis. Contributed to designing risk models and performing evaluations to guide lending decisions and reduce default exposure.

Credit Scoring Portfolio Analysis Risk Modeling

Risk & BPA Specialist

Good Credit UCO CJSC

Jan 2016 - Jan 2020 (4 years)

Progressed through cashier, credit risk analyst, and risk & BPA specialist roles while building expertise in credit risk scoring and portfolio analysis. Helped design risk models and perform evaluations to guide lending decisions and reduce default exposure.

Risk & BPA Credit Scoring Portfolio Analysis Model Evaluation