Jesús Zubieta Segundo

Backend engineer with 11+ years of experience building and supporting distributed systems and API platforms using Go, C# and .NET. Experienced in legacy modernization, REST and SOAP services, SQL Server optimization, asynchronous business integrations and production reliability. Contributes to architecture, automated testing and CI/CD; has led and mentored engineers and collaborated with cross-country Scrum teams.

Backend Engineer at Redarbor (2024-06 – Present)

• Contributed to a.NET 10 SOAP service that unifies legacy and new business logic, enabling transparent client migration; containerized the service environment with Docker Compose and added unit tests.
• Designed and maintained.NET Core REST APIs for candidate and job application workflows; optimized SQL Server queries and stored procedures for CV and application flows.
• Integrated an Apply service with Azure Functions: the service emits a business signal that a Function consumes to replicate data into Elasticsearch.
• Implemented asynchronous business-signal flows with Kafka and RabbitMQ to support analytics and reporting; used SQS in a microkernel that orchestrates data sources for dynamic email content.
• Migrated in-house authentication to OAuth 2.0 standards using Duende IdentityServer; integrated SendGrid as an email provider.
• Generated Swagger specifications for API testing and contributed API templates and boilerplate improvements used to scaffold APIs.
• Built unit and smoke tests with GitHub Copilot Spec Driven Development, using Docker-based environments and mocked dependencies and responses; contributed to Azure Pipelines and CI/CD.
• Resolved production issues involving duplicate submissions, retries and data consistency; improved validation, error handling and observability.
• Worked in Scrum with teams across Mexico, Colombia and Spain, collaborating with product, QA and platform partners.

Backend and API Architect at OCC Mundial (2021-03 – 2024-05)

• Designed and scaled API platforms supporting millions of daily requests.
• Led migration from C# to Go microservices, reducing response times by approximately 35%.
• Applied Strangler Fig and Anti-Corruption Layer patterns to modernize legacy services.
• Built CI/CD pipelines that reduced release cycles from days to hours; mentored engineers and improved engineering practices.

Backend Engineer at OCC Mundial (2019-09 – 2021-03)

• Migrated monolithic services to microservices using Go and.NET Core, improving backend modularity and scalability.
• Performed load testing and performance tuning.

Technical Lead and Backend Engineer at OCC Mundial (2018-06 – 2019-09)

• Defined microservices architecture and led backend development for a team of four engineers.
• Built serverless components using AWS Lambda.

Backend Developer at OCC Mundial (2016-05 – 2018-06)

• Built REST APIs in C# deployed with AWS and Docker.
• Implemented CI/CD pipelines and automated testing.

Software Developer at Global Hitss (2015-09 – 2016-05)

• Developed enterprise Java services with Spring and JMS, including asynchronous processing flows and integrations.

Bachelor’s Degree in Computer Systems Engineering – Instituto Tecnológico de Querétaro