I design and ship small, well-crafted web applications for data exploration, reporting, and LLM-assisted workflows. My flagship is Finventory — a personal finance manager I built from the ground up. Everything else here is the lab where I experiment.
Personal finance, decoded.
Track every account, every transaction, every recurring bill — all in one place. Finventory is the personal finance management app I built to actually understand where my money goes, with bank-grade security, automatic SMS-driven transaction capture, and clean monthly insights.
I'm a data / application engineer focused on turning messy real-world data into usable, secure, self-serve tools. My stack gravitates toward Python (Flask, DuckDB, Pandas), SQL, Power BI, and carefully-scoped LLM integrations.
ZynxTech is my sandbox. I use it to ship small, complete products end-to-end — from schema design and SQL safety to auth, session management, deployment, and UI. The three tools below are the ones currently live.
Smaller experiments and demos I built alongside Finventory. All live, all authenticated.
Upload CSV, Parquet, or Excel, register them as aliases, and run DuckDB queries with a full Ace editor. Per-user sessions, sqlglot-based safety, bounded export pool, background reaper, query history, schema autocomplete.
A minimal library for embedded Power BI reports. Reports are curated by an admin and viewable by any signed-in user in an embedded iframe. Designed for lightweight report distribution inside a small team.
Paste an Indian bank/UPI SMS and get back a validated JSON record: amount, direction, merchant, balance, and more. Backed by OpenAI with strict token caps, per-user rate limits, and input-length guards to keep costs bounded.
The fastest way to reach me is email. I usually reply within a day.
jeromeeliezer@zynxtech.inInterested in a ZynxTech account? Email me from the address above and mention what you'd use it for.