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25-Year Data Architect: SQL That Holds Up at Work
Jason D.

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Hourly Rate: $65
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About Jason

Bio

I've spent 25 years turning messy business data into systems people trust. I started as a Crystal Reports and Oracle developer in the late 1990s, spent a decade as a business intelligence architect for a Fortune 500 electronics distributor, a cable company, and a federal land agency, and for the last six years I've been a data and AI architect working on Snowflake. I hold a B.S. from the University of Montana and I'm a SnowPro Core certified Snowflake professional. SQL has been the constant...

I've spent 25 years turning messy business data into systems people trust. I started as a Crystal Reports and Oracle developer in the late 1990s, spent a decade as a business intelligence architect for a Fortune 500 electronics distributor, a cable company, and a federal land agency, and for the last six years I've been a data and AI architect working on Snowflake. I hold a B.S. from the University of Montana and I'm a SnowPro Core certified Snowflake professional. SQL has been the constant through all of it. I've written it against Oracle, SQL Server, MySQL, Redshift, and Snowflake, and I know where the dialects differ and, more importantly, where they don't.

Teaching has been part of the job the whole way. I wrote and taught the reporting curriculum for a 2,400-user platform at the electronics distributor, designed the junior-developer training program at a resort company, trained more than 50 end users during a federal BI modernization, and today I mentor consultants one-on-one. My students have all been working adults: analysts, developers, and career-changers, in classrooms, over video, and at the next desk. My approach is the one I use on real projects. Start from the question the data has to answer, write the query together, break it on purpose, and fix it until you can explain every line without me.

A session with me is hands-on from the first minute. We work in your database or a free sandbox, on your homework, your interview prep, or the report your boss actually asked for. I'm patient with beginners because I was one, answering phones at a mutual fund company before I ever wrote a line of SQL, and I'm direct with experienced people who want production-quality work. If you want SQL that holds up at work, help thinking through an analysis, or a straight answer about what a data career takes, that's what I do.

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Education

University of Montana
Exercise Science

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Approved Subjects

Career Development

Career Development

I've spent 25 years in data work and made every move a career-changer worries about: I started answering phones in customer service at a mutual fund company, taught myself reporting and SQL on the job, and worked up through developer, architect, and director roles at Fortune 500 companies, a federal agency, and consulting firms. Today I'm a senior director who hires, manages, and mentors data engineers and consultants, sits on the interviewing side of the table, and writes the engineering standards new hires are measured against. I know which skills actually get people hired in data roles, which certifications matter (I hold SnowPro Core), and how to turn a resume full of tools into a story a hiring manager believes. I work one-on-one with working adults to choose a lane, build a portfolio, and negotiate the next step.
Data Analysis

Data Analysis

For 25 years, I've built the warehouses, reports, and dashboards that analysts live in, from Crystal Reports and BusinessObjects in the early 2000s through Oracle BI, Tableau, and Power BI, to modern SQL analysis on Snowflake. I designed and taught the reporting curriculum for a 2,400-user platform at a Fortune 500 distributor, trained more than 50 end users during a federal BI modernization, and hold a B.S. from the University of Montana and a SnowPro Core certification. My method is what I use on real projects: start with the business question, find the right data grain, write the query or pivot that answers it, then check the answer against something you already know is true. I tutor working adults and students one-on-one and over video, on their own data whenever possible.
Interview Prep

Interview Prep

As a senior director at a data consulting firm, I interview and hire data engineers, analysts, and architects, so I know the SQL screens, data-modeling questions, take-home exercises, and behavioral rounds from the hiring side. I've spent 25 years doing the work those interviews test, from Oracle and SQL Server through Snowflake and dbt, and I hold a SnowPro Core certification. Sessions are mock interviews with feedback: live SQL problems at the level the job actually requires, whiteboard data-model questions, and practice explaining past projects clearly in three minutes. I work one-on-one with working adults and recent grads, and I'm direct about what a candidate needs to fix before the real interview.
SQL

SQL

SQL has been my working language for 25 years and across nearly every major database: Oracle from version 8 through 19c, SQL Server, MySQL, Sybase, Teradata, Redshift, and for the last six years Snowflake, where I hold the SnowPro Core certification. I've written everything from ad hoc reports to PL/SQL packages to the SQL behind statewide data warehouses with thousands of queries in production, and I wrote the SQL coding standards that a consulting firm's engineers work to today. I teach the language the way I learned to write it for real systems: standard, portable SQL first, then the dialect differences that actually matter, with joins, grouping, window functions, and query performance explained through what the database is doing underneath. I've taught SQL to business users, junior developers, and consultants in classrooms and one-on-one, and I tutor working adults and students over video on their own homework, their own data, or the interview problems they're about to face, until they can explain every line without me.
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Hourly Rate: $65
Contact Jason