Keldon
Fischer
Senior Data Analyst • Business Intelligence
I'm a PNW local currently living in Kirkland, Washington, and professionally I focus on data and business intelligence, turning complex data into trusted insights and self-service reporting, while outside of work I enjoy spending time outdoors and exploring everything the Pacific Northwest has to offer.
About
I'm Keldon, and my name is usually the first thing people ask about. Unless you're a San Antonio Spurs fan, you play Magic: The Gathering, or you know Star Trek ship lore, there's a good chance you've never met another Keldon.
I come from a diverse family background with German, Japanese, Irish, and several other ethnic roots that I'm still learning about.
I enjoy spending time outdoors in the Pacific Northwest, but my biggest passion is traveling with my wife. I've had the opportunity to explore much of Asia and parts of Europe, and I love experiencing different cultures, meeting new people, and finding great local food. There are still countless places I hope to visit, and I look forward to adding a few more stamps to my passport every chance I get.
Hobbies
Work
Project 01
Voice-quality analytics platform
Flagship self-service product owned across three major versions and five years. Re-architected a dataset that had grown past 2GB on 60 days of data by pushing aggregation into SQL.
3Major versions shipped
Read project →Project 02
Billion-row pipeline rebuild
A 5+ hour job kept exhausting platform capacity before finishing. A pre-aggregated curated table cut processing time and expanded the window from a rolling month to full history.
5B+Source rows tamed
Read project →Project 03
Crash-analysis dashboard
Enabled device-level crash analysis for internal teams and application vendors, supporting a crash-reduction initiative the business sized in real dollars.
$500K to $1MEstimated savings
Read project →Project 04
Silent refresh recovery
A customer-facing dashboard had quietly failed to refresh for a month. Traced it to a dataset hitting its 48GB memory ceiling and reduced the footprint to restore daily refresh.
30+ daysOutage resolved
Read project →Resume
Download PDFExperience
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Sep 2021 to now
Senior Software Engineer / Data Analyst
T-Mobile
Own self-service dashboards giving engineering, product, and executive teams visibility into voice quality, 5G utilization, latency, and device health. Flagship voice-quality product across three versions and five years.
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Feb 2021 to Sep 2021
Associate Software Engineer / Data Analyst
T-Mobile
Analyzed diagnostic event data with SQL and Python, and modernized a first-generation voice-quality dashboard that seeded the later suite.
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Aug 2019 to Feb 2021
Associate Systems Architecture Engineer
T-Mobile
Owned a recurring executive report on 5G and LTE device penetration end to end, and fixed extraction defects feeding the device database.
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2018 to 2019
SQL Reporter, Data Analyst, Android Developer
Intermedia
Built SQL reports for business stakeholders and developed Android functionality and backend integrations.
Education
B.S. Computer Science & Systems
University of Washington
A.A.S.
Bellevue College
Patents
US-11818143-B1 (Granted)
Authenticator application for wireless communication devices and networks.
US-20260067658-A1 (Published)
Short-range communication device emergency response system.
1 granted, 1 published, 4 filed
Skills
Contact
Open to conversations about data, analytics, and BI work. The fastest way to reach me:
- keldon.fischer@gmail.com
- linkedin.com/in/keldon-fischer
- Location
- Kirkland, WA
Available for analytics & BI roles
