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Dagmar B
@dagmarbrown24
Python Developer API Integration Data Automation
Jamaica
English
About me
I build Python scripts that pull data from APIs, files and websites, clean it, and turn it into something usable — Excel, CSV or JSON.
What I'm good at is the part most people skip: knowing when the data is wrong. On a recent project I caught an API silently returning wrong records — no error, request echoed back correctly, nothing looked broken. My verification layer caught it before it corrupted the dataset.
Recent: a pipeline handling 35,000+ records from a WebSocket API, and a live marketplace built on Next.js and Postgres.
Tell me what you have and what you need from it.
Skills
Dagmar B
Offline •
See my services
Data Cleaning
I will clean and organize your messy CSV or excel data
Automations
I will write a python script to extract PDF or website data into excel
Work experience
Self Employed
Self-employed • 4 mos
Python Developer — Data Pipelines
Jun 2026 - Present • 2 mos
Built a Python data pipeline against a WebSocket and REST API handling 35,000+ records: authentication, pagination, rate limiting, retries and error recovery. Added a verification layer that caught the API silently returning current data for out-of-range requests - no error, request echoed back correctly - and halted the run before the dataset was corrupted. Reproducibility enforced with SHA-256 checks on inputs and outputs, deterministic replay, and automated regression suites. Public repo: github.com/dagmarbrown965-wq/apex-ultra
Full-Stack Developer — EcoNest
Jun 2026 - Present • 2 mos
Built and shipped a live e-commerce marketplace end to end: Next.js 14, TypeScript, Supabase (Postgres, Auth, Row-Level Security), deployed on Vercel. Includes authentication, checkout with stock handling, seller dashboards, an admin panel, and an append-only ledger protected at the database-trigger level. Live at econestja.com.
