Senior Software Engineer focused on building reliable platforms, payments and integrations, with a strong backend background and a soft spot for automation and developer productivity.
Based in Kitchener, Ontario.
LinkedIn: https://www.linkedin.com/in/lucas-bernardo-de-souza-santos
- Payment flows, pricing, reconciliation, and integration-heavy systems
- Platform modernization (legacy to cloud native, monolith to services, async messaging)
- Developer experience (tooling, libraries, upgrades, testing foundations)
- High throughput backends with strong observability and resiliency
- Languages: Java, JavaScript, TypeScript, Node.js
- Backend: REST APIs, event-driven systems, messaging and queues, microservices
- Frontend: AngularJS (legacy migrations and internal portals)
- Practices: automated testing, CI CD, observability, performance tuning
If you want to chat about fintech, payments, integrations, or platform modernization, feel free to reach out on LinkedIn.


