Leonardo Guercio is a pragmatic software engineer based in Madrid with ~8–10 years of experience building cloud-native, event-driven distributed systems and microservices. He has shipped backend services in Go across AWS and GCP, leveraging Kubernetes, Docker, Helm, Terraform and Kafka for resilient, observable platforms at companies like HelloFresh and Paack. Comfortable across the stack, he has also delivered full‑stack and hybrid mobile apps using Angular, Ionic and Nest.js, and has a history of automating deployments and CI/CD for production systems. His background in economics and a master's in mathematics and computer science give him a data-minded approach to system design and algorithmic problem solving. Leonardo’s freelance work and side projects—ranging from trading bots and ETL pipelines to payment API integrations—reflect an engineer who combines rapid prototyping with production-grade reliability. He tends to favor test-driven and domain-driven practices, which helps teams move fast without sacrificing correctness.
Program for Black-Scholes PDE using Explicit Euler Finite Difference Method (based on https://www.quantstart.com/articles/C-Explicit-Euler-Finite-Difference-Method-for-Black-Scholes)
Contributions:4 PRs, 7 pushes, 1 branch in 2 years 9 months
Contributions:3 PRs, 142 pushes, 2 branches in 3 years 9 months
my-blognatsrustgrpcdocker
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Leonardo Guercio - Software Engineer (freelancer) at HelloFresh