I build recurring ETL pipelines and the verification layers that tell you when they're lying to you — fail-closed validation, immutable dated snapshots, and provenance tracking instead of silent nulls.
• Storage Price Observatory: Daily 7-operator pricing monitor tracking 9,077 facilities and ~130k SKUs without interpolation. Three pre-registered predictions on Public Storage's (PSA) Q3 earnings sealed in git before results
existed: https://braedenkeena.pages.dev/storage/
• Room or Radio?: Replayed 69.5M Wi-Fi CSI frames across 8 nights on commodity ESP32s, breaking a 99.7% device-fingerprinting claim with physical controls to isolate physical link state: https://braedenkeena.pages.dev/csi/
• Municipal Pipelines: Reverse-engineered Tyler EnerGov APIs and county feeds consolidating 57,000+ public records into 30,000+ resolved entities: https://braedenkeena.pages.dev/permits/
Background in physical operations leadership before data engineering. Open to contract or full-time.
Data engineer. I build recurring collection pipelines against public sources,
and the thing I care most about is the failure mode where a pipeline keeps
reporting success while returning nothing.
Recent: a daily multi-operator price-tracking pipeline with immutable dated
snapshots and coverage guards that fail the run rather than write an empty
file; an ESP32 WiFi CSI array doing RF fingerprinting from clock-offset
features (99.7% device ID over 7,497 windows on one receiver, 95.7% over
14,234 once a second receiver joins — a cross-receiver generalization gap);
scrapers against county permit portals.
Operations background before this, which is why I am comfortable being the
person in the room who can talk to the engineers and to the people paying for
the thing.
I build data pipelines that know when they're lying to you.
GAScout (https://gascout.pages.dev) — Georgia public-records pipeline. Four counties live, each a different ingestion problem resolved into one schema: a 9,915-page fixed-width mainframe PDF (409,142 records, zero dropped rows), a weekly XLSX roll, monthly text PDFs, and scanned sheriff's levy documents via OCR. Adding a county is a config file, not code. The other 155 are labeled planned rather than filled with invented numbers.
FindStorage (https://findstorage.pages.dev) — national self-storage pricing tracker. 4,639 locations, 245,000+ price changes logged, running unattended on a daily schedule. Aborts rather than publishing when the store count moves more than it should, because the failure that costs you isn't a crash — it's a scraper quietly returning less after a site changes and nobody noticing for three weeks.
Also built a WiFi CSI device-fingerprinting array on ESP32 — custom ESP-IDF firmware and a Python DSP pipeline, running as my apartment's security system. Cross-manufacturer separation holds at 11-15 sigma; same-model discrimination tops out near 77% and true clock twins are the open problem.
Before this I ran a 500-acre motocross park in Northern California: acquired dormant land, re-entitled it, directed a 120-person race-day crew, ran the medical plan through a mid-event helicopter evacuation, and sold my stake.
Self-taught, ~18 months in. Interested in data engineering, pipeline work, and anything where messy real-world sources have to become trustworthy structured data.
Remote: Yes
Willing to relocate: Yes
Technologies: Python, SQL, DuckDB, Parquet, pandas, Playwright, OCR, GitHub Actions, Linux
Résumé/CV: https://braedenkeena.pages.dev/resume.pdf
Portfolio: https://braedenkeena.pages.dev
Email: Braeden@thekeenas.com
I build recurring ETL pipelines and the verification layers that tell you when they're lying to you — fail-closed validation, immutable dated snapshots, and provenance tracking instead of silent nulls.
• Storage Price Observatory: Daily 7-operator pricing monitor tracking 9,077 facilities and ~130k SKUs without interpolation. Three pre-registered predictions on Public Storage's (PSA) Q3 earnings sealed in git before results existed: https://braedenkeena.pages.dev/storage/
• Room or Radio?: Replayed 69.5M Wi-Fi CSI frames across 8 nights on commodity ESP32s, breaking a 99.7% device-fingerprinting claim with physical controls to isolate physical link state: https://braedenkeena.pages.dev/csi/
• Municipal Pipelines: Reverse-engineered Tyler EnerGov APIs and county feeds consolidating 57,000+ public records into 30,000+ resolved entities: https://braedenkeena.pages.dev/permits/
Background in physical operations leadership before data engineering. Open to contract or full-time.