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Ahmed Eid

@ahmedeid5

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Software Engineer at Visa building B2B payment APIs processing $500M+ annually.

United States

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At Visa Inc., I architect Java/Spring Boot B2B payment-file APIs that process $500M+ annually. I improved performance by 40% while sustaining sub-400 ms p99 latency.

I also built release automation with LangGraph and MCP, cutting documentation time from 8 hours to 15 minutes. A React and TypeScript monitoring dashboard I shipped was adopted by three operations teams and reduced payment-anomaly triage time by 40%.

Earlier, I worked on SmartCast OTA updates at VIZIO Inc. and built projects including a Python/OpenCV Rubik’s Cube solver and a Rust adversarial-testing engine for AI coding agents.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Visa Inc.

Jan 2024 - Present (2 years 9 months)

Architected Java/Spring Boot B2B payment-file APIs processing $500M+ annually, improving performance by 40% and sustaining sub-400 ms p99 latency. Remediated 30+ critical vulnerabilities and automated CI/CD and monitoring, achieving 98.5% test coverage and reducing production incidents by 45%.

Java Spring Boot REST APIs API Security PCI DSS SonarQube Checkmarx CI CD Prometheus Grafana ELK LangGraph MCP Angular React TypeScript React Query Recharts

Software Engineering Intern

Visa Inc.

May 2023 - Aug 2023 (3 months)

Optimized Java/Spring Boot APIs through SQL query tuning and database indexing, reducing latency by 50% at 500+ transactions per second. Trained a TensorFlow/Keras LSTM for API anomaly detection, achieving 95% accuracy and outperforming statistical baselines by 20%.

Java Spring Boot SQL Database Indexing TensorFlow Keras LSTM Anomaly Detection

Software Engineering Intern, Technology & Software Services

VIZIO Inc.

Jun 2022 - Aug 2022 (2 months)

Engineered C/C++ SmartCast OTA updates with delta patching and A/B failover, reducing boot times by 20% across 19M+ devices. Automated firmware builds for 15+ hardware SKUs with Docker and AWS CodePipeline, halving release-preparation time.

C C++OTA Updates Docker AWS CodePipeline XML UNIX IPC