About
We fix the systems your business runs on.
Aripone LLC is an engineering firm founded in 2026. We fix and modernize the systems US product companies run their money and core operations on. Engagements are fixed-fee, and we work in English and Spanish on US hours.
- 2026
Formed. Aripone LLC.
- EN / ES
English and Spanish, on US hours.
- Fixed
Every engagement has a fixed fee, agreed before work starts.
Principal
Rey Narvaez.
Rey Narvaez founded Aripone after more than a decade as a senior engineer in regulated production: reinsurance, fintech, identity and money movement. He has moved C# and .NET estates to modern stacks. English and Spanish, both directions.
Record
Proven in regulated production.
Our principal, Rey Narvaez, delivered these results in regulated production before Aripone was formed, over more than a decade as a senior engineer in reinsurance, fintech, identity and money movement.
- Minutes
Payments. Push-to-card payouts over Visa Direct and Mastercard MoneySend on a regulated banking platform, reaching the card in minutes instead of days, with idempotency and partial-failure recovery.
- 27h → 8h
Performance. A regulated calculation job cut from 27 hours to 8 per run, so it can run three times as often.
- 30%
Performance. About 30% of the database load removed from a production platform.
- C# / .NET
Modernization. C# and .NET estates moved to modern stacks.
Operating proof
Rey also runs a 26-agent system in production.
Rey also runs Cerebro, a fleet of 26 agents across five hosts in continuous production since early 2026. Running it is how we know what it takes to keep what we build working in production.
Scoping call
Tell us about the system.
Start with a 30-minute call about your system and what you need from it.