Products, not projects
Work is selected by product scope and recurring operational need, not client delivery.
About REXIA
An independent studio, not a client-services business.
REXIA builds financial operations software for small businesses in Latin America.
Operating context
Founder-operated product engineering.
REXIA is founded and operated by an engineer with more than 15 years of experience building production systems across fintech-adjacent, e-commerce, and large-scale data platforms.
The background spans Microsoft/Copilot, Globant, MercadoLibre, and EPAM. The founder currently works as a senior software engineer at Microsoft; REXIA's product infrastructure runs on AWS — Lambda and ECS Fargate for compute, RDS Postgres and S3 for data, EventBridge and SQS for payment webhooks and reconciliation, Bedrock for document processing, and KMS, Secrets Manager, and CloudWatch for the audit trail regulated financial data requires.
The founder is not named on this site. REXIA is bootstrapped and self-funded, with no external investors. It does not take agency engagements, sell engineering hours, or offer consulting.
Method
Working principles
Close the loop
A product should connect collection, local rules, and payout — not stop at moving money.
Operations stay attached
Shipping includes reliability, maintenance, support, and clear status.
Claims stay bounded
Public copy distinguishes what is live, what is building, and what remains unexplored.