I'm an Associate Director of Data Engineering at Optum (UnitedHealth Group) with 7+ years of experience building and scaling enterprise data platforms using Databricks, Snowflake, Azure, PySpark, Python, SQL, dbt, and Airflow. Having lived and worked in Ireland for over 6 years, I've developed deep insight into the Irish technology and data job market. Throughout my career, I've interviewed with leading organizations including Amazon, Google, EY, Deloitte, KPMG, SAP, Mastercard, Fidelity, Workhuman, and many others, giving me first-hand exposure to what top companies look for in data professionals. As a hiring manager at Optum, I've been actively involved in evaluating, interviewing, and hiring data engineers and analytics professionals across multiple experience levels. This allows me to provide a unique perspective from both sides of the interview table, helping candidates understand not only how to answer questions, but also how hiring managers assess technical skills, communication, problem-solving ability, and overall fit. I enjoy mentoring professionals on interview preparation, career progression, CV and LinkedIn optimization, Data Engineering, Data Architecture, Databricks, Snowflake, and navigating careers in Ireland's technology sector. My goal is to provide practical, honest, and real-world guidance that helps professionals accelerate their careers and confidently pursue opportunities at top organizations.