Alexandre Szilagyi

Senior Software Engineer

Built a differential testing harness for payment parity, designed an automation and inventory engine, and led migration of payment systems from C#/.NET to Go. Also built invoicing and PTO features for an internal HR platform.

GoTypeScriptReactNext.jsMindBody OnlineDifferential TestingPayment SystemsC#.NETMigrationHR Platforms

Software Engineer

Coinbase

Developed and maintained backend microservices for the risk and fraud prevention platform, improving withdrawal hold accuracy and reducing false positives. Built data ingestion paths and consolidated MongoDB schemas.

GoPythonKubernetesMongoDBRedisDynamoDBKafkaSnowflakeDatabricksChange Data CaptureMicroservices

Senior Software Engineer

Zup Innovation

Built event-driven pipelines for document issuance and a service-contracting platform for Itaú partner services. Authored Terraform modules and infrastructure test tooling.

GoJavaKafkaAWS LambdaAmazon SQSSNSTerraformPostgreSQLEvent Driven Architecture

Senior Software Engineer

Developed and maintained critical Go APIs for the Mercado Pago payment gateway, processing up to 16M transactions per day. Managed HSM-backed security keys and improved deployment processes.

GoDynamoDBHSMsPCIPIICI CDIdempotencyDistributed SystemsEvents API

Software Engineer

Zup Innovation

Developed a cloud-based Rural Credit payments solution in Go, Python, Java/Spring Boot, and Kafka, reducing settlement time by 83%. Built ingestion and reporting pipelines and authored Terraform modules.

GoPythonJavaSpring BootKafkaKafka Connect APITerraformPostgreSQLAuroraCloudFormationSplunkPrometheusGrafanaAppDynamics