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Grigoris Orfanou

@grigorisorfanou

Message

Data Engineer with 7 years’ ETL and migration experience—building reliable pipelines from legacy systems to Snowflake.

Cyprus

Message

What I'm looking for

I’m looking for a data engineering role where I can own end-to-end ETL and cloud migrations, lead Informatica/Snowflake modernization, automate workflows, and ensure strong data quality—using practical AI to accelerate delivery.

I’m a Data Engineer with 7 years of experience delivering large-scale data migrations and ETL architecture. I’ve led the technical transition of legacy Teradata systems to Snowflake, rewriting complex logic into optimized SnowSQL scripts while maintaining high reliability and performance.

As the primary technical lead for Informatica PowerCenter, I design, troubleshoot, and strengthen critical workflows for the team. I also automate ingestion and file handling in Linux environments using KSH and Python, orchestrate production schedules with IBM TWS to keep 24/7 availability, and perform deep data validation to ensure zero data loss during major transitions—while using GitHub Copilot daily to speed up SQL development and script debugging.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Amdocs

Aug 2019 - Present (6 years 10 months)

Managed the technical migration of legacy Teradata systems to Snowflake by rewriting complex logic into optimized SnowSQL scripts. Served as Informatica PowerCenter SME, automated Linux-based ingestion workflows with KSH/Python, and ensured zero data loss while orchestrating 24/7 schedules via IBM TWS.