The two of us
Twelve years of analytics and ten of data engineering. Five of those years were spent in the same building, on different teams, and both with different lives.
Both stacks below are plotted on the same 10 axes, so the two shapes mean the same thing.
Julia Velicev · Data Engineer III, SeekWell
396 commits · 22 years between us
Tommy
Oyarzun
Analytics and data leader with 12+ years building D&A organizations at consumer subscription, SaaS, and enterprise software companies. Specializes in transforming analytics teams from reporting functions into strategic partners through org design, experimentation, self-serve BI products, and AI-native workflows. Based in Sandy, UT.
- Years in field
- 12
- Based
- Sandy, UT · 4,505 ft
- Commits, 12 mo
- 396
- Strongest
- SQL · 95
Stack · self-assessed
Career
Commits · 52 weeks
Projects · 4
A walkable 3D model of the house we're building in Sandy, generated from the architect's CAD drawings rather than modeled by hand. Orbit the massing, peel the roof off, isolate a level, drag the sun across the sky — or drop into first person and walk the interior.
A media tracker on a knowledge graph where every connection is a declared type — directed by, part of, scored by — not a similarity score. The ontology is a build input, not a diagram: it compiles to types and database constraints, and CI fails when the two drift.
A guided setup that turns a new laptop into a working environment for building with Claude Code. You don't follow it by hand — you clone it, point Claude at one file, and it interviews you, explains each piece, and stops to fix things when they break.
This very site — a print magazine in a browser. Every photograph is screened into halftone dots on a canvas at the size it is displayed, and every figure on the page is counted from a list rather than typed, so the words and the numbers cannot disagree.
Julia
Velicev
Staff Data Engineer with 10+ years of experience building scalable data pipelines, cloud warehouses, and analytics solutions. Hands-on expertise across GCP, BigQuery, Databricks, AWS, Python, SQL, and Tableau. Track record of modernizing legacy systems, optimizing high-volume SQL, and delivering reliable, reusable data products in close partnership with business, product, and engineering teams.
- Years in field
- 10
- Based
- Draper, UT · hybrid
- Books, 2026
- 10
- Strongest
- SQL · 95
Stack · self-assessed
Career
Projects · 1
Speaker at Tech Moms on navigating data engineering as a foreign-born woman with a non-traditional education and career path. On making it work without the typical CS degree or Silicon Valley on-ramp.
Recognition
“Amplifying the achievements and influence of women who lead, innovate, and inspire.”
She advanced from Analyst to Data Engineer III through determination and hands-on learning. Julia holds MicroStrategy and Google Cloud Platform certifications, earned a Women in Leadership Certificate, and supports women in tech through Tech Moms. She volunteers with Wasatch Community Gardens and mentors others in professional growth.
–2019
Same company, 5 years, different teams. He was Manager of BI Development at Overstock.com while she was growing from BI Developer to Manager of Data Engineering there. Her tenure ran to 2023 — 9 years in all.
Midvale, Utah
The overlap