Lan Nguyen
Dunedin · 022 555 0224 · lan.nguyen@email.com
Fiona McAllister, Head of Data and Insights
Taieri Water Services, Dunedin
Re: Senior Data Analyst
Dear Fiona,
I'm applying for the Senior Data Analyst role. I have six years turning operational and customer data into reporting people actually use, working in SQL, Power BI and Python, and since 2022 I've been a data analyst at Taiaroa Energy in Dunedin.
Your ad talks about better reporting for operations teams and using data to plan maintenance, which is close to what I do now. I built the Power BI reporting suite for our customer operations team, used by 120 staff each week, and replaced 14 manual Excel reports with automated dashboards, saving about 30 hours a month. I analysed three years of fault call data to find the streets with repeat outages, and that work shaped the next year's maintenance plan. I also set up data quality checks on our billing feed that catch around 200 bad records a month before they reach reports.
I enjoy work where the analysis leads to something physical getting fixed, and a utility serving the city I live in is where I'd like to do more of it. A senior role would also let me spend more time helping others build reports people trust.
I hold the Power BI Data Analyst Associate certification and I'm a New Zealand resident. Some of my work is at github.com/lannguyen, and I'd be happy to walk you through a dashboard.
Kind regards,
Lan Nguyen