Senior backend software engineer

Charles Sachet

Backend engineer based in Canada. 10+ years across fintech, SaaS, and payments.

Work tends to center on APIs, billing, background jobs, and production systems.

About

I work on backend systems used in real products. A lot of that means APIs, payments, billing, background jobs, and the infrastructure around them.

I have worked mostly in startups and small teams, alongside CTOs and senior engineers at companies like Showpass, Alpaca Markets, Pricematepay, Navigate, and Neoway. The stack has usually been Go, Python, PostgreSQL, Redis, AWS, and GCP. I prefer systems that stay simple and reliable.

Work

Ticketing and payment systems

At Showpass, work around ticketing, payments, exchanges, and integrations, with systems that had to stay stable under real traffic.

Fintech and billing

At Alpaca Markets and Pricematepay, work around payment gateways, billing, and financial workflows where correctness matters.

APIs, jobs, and infrastructure

Across roles, building APIs, background jobs, caching, and cloud infrastructure on AWS and GCP.

Data pipelines and side projects

At Neoway, data collection and processing pipelines. Outside work, small backend tools and side projects.