George Mcclain

I’m a Senior Software Engineer with 10+ years of experience building scalable backend systems and distributed applications using Go, Java, and cloud-native technologies. I focus on reliability and maintainability—especially when designing microservices, event-driven architectures, and high-performance APIs.

In my current role at USAA, I’ve built a high-throughput payment and reconciliation platform in Go using Gin, addressing consistency in distributed transactions with idempotent processing, retry mechanisms, and eventual consistency patterns. I also designed event-driven microservices with gRPC, Apache Kafka, and Protocol Buffers for reliable real-time financial data streaming, and I integrated AI-powered classification/summarization pipelines using OpenAI APIs to automate transaction review. To improve production outcomes, I developed scalable REST APIs with PostgreSQL query optimization, containerized and deployed services on AWS (EKS, S3, RDS), and strengthened observability with Prometheus and Grafana—then stabilized performance using Redis caching and rate limiting.

Earlier, I delivered backend services with Go (Echo framework) and Java Spring Boot, improving request handling, reducing latency, and fixing data inconsistency through validation and retry logic. I’ve also built machine learning pipelines with Python (Scikit-learn) and integrated models via REST APIs for real-time inference, while writing unit and integration tests (JUnit) to prevent regressions—because I’m committed to continuously improving engineering practices and writing maintainable systems.