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$
USD
I will be your retool developer and build your internal tool
Joseph Purdy
About this gig
Drowning in spreadsheets? Need to give your ops team a UI instead of having them ask engineering for SQL every week? Just raised and need actual internal tools instead of Notion and Airtable held together with hope?
I'll have a working Retool screen connected to your database in 3 days. A full production app in 10.
What I usually build:
- Admin panels for SaaS support, sales, and ops teams
- KPI and operational dashboards on Postgres, Supabase, or MySQL
- Back-office tools: refund flows, user impersonation, bulk actions
- Customer 360s pulling Stripe, HubSpot, and your DB into one view
- Whatever your engineers keep saying yes to and never get around to
A bit about me: ex-fintech engineer. I've built internal tools for live trading systems where bad UX actually costs money. Stack I use day to day: Retool, Postgres, Python, React, TypeScript.
Standard tier comes with a recorded walkthrough of the build, so your team can extend it later without paying me again.
Premium starts with a 60-min planning call. We scope it together, so what gets shipped is what you actually need, not what I guessed.
Need to keep it a secret with an NDA? Message me before ordering.
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Get to know Joseph Purdy
Joseph Purdy
Retool Developer, Internal Tools for SaaS, fintech engineer
- FromChina
- Member sinceJul 2019
- Avg. response time1 hour
Languages
English, Chinese
I build the internal tools your engineering team doesn't have time to build.
Background: ex-fintech engineer running production internal tools for live trading systems. Dashboards and admin panels where slow queries cost real money.
Stack: Retool, Streamlit, Python, React, TypeScript, Postgres, Supabase. Integrates with Stripe, HubSpot, Snowflake, BigQuery, REST/GraphQL APIs.
Speed first: MVP in 3 days, production app in 2 weeks. Recorded walkthroughs included so your team can extend without paying me.
NDA-friendly. Response within 1 hour (UTC+8).
FAQ
What databases / integrations do you support?
Postgres, MySQL, MongoDB, Supabase, REST/GraphQL APIs, Stripe, HubSpot, Airtable, Google Sheets, Snowflake, BigQuery. Custom JS modules if you need to call something exotic.
Do I need a paid Retool plan?
You'll need at least Retool's Team plan ($10/user/mo) to add me as a builder during development. After delivery you can transfer ownership and downgrade.
Will my data leave my environment?
No. Retool runs against your DB connection. I only see the data when I'm logged into your Retool workspace, and you can revoke my access the moment I deliver.
What if I need changes after delivery?
Standard and Premium include revisions. Premium includes 30-day support. For ongoing work I offer a fractional retainer, just message me.
Can you sign an NDA?
Yes. Send it with your order or in chat before. Standard mutual NDAs are fine.
