Open to opportunities

William Tran

@williamtran1

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Senior full-stack engineer building scalable, AI-driven payment and backend systems.

United States

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What I'm looking for

I seek senior engineering roles building scalable, AI-enabled payment or backend platforms where I can lead architecture, mentor engineers, and deliver measurable product impact.

I am a senior full-stack software engineer with 10 years of experience building scalable web applications across startups and high-growth tech companies. I focus on clean architecture, developer experience, and cross-functional collaboration.

At Stripe, I contributed to major product launches including Stripe Link, Stripe Treasury, and the Optimized Checkout Suite, and worked on AI-driven initiatives like the Payments Foundation Model and an internal LLM Explorer. My work emphasized performance, fraud reduction, and checkout personalization.

Previously at Nextiva, I engineered scalable microservices and real-time systems, built AI voice-agent interfaces, and implemented HIPAA-compliant solutions for healthcare use cases while improving uptime and reducing response times.

I mentor engineers, lead system-design reviews, and champion observability and best practices across frontend and backend stacks, leveraging modern languages and cloud-native infrastructure to deliver measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Stripe

Nov 2021 - Present (3 years 10 months)

Contributed to Stripe Link, Stripe Treasury, and an AI-driven Payments Foundation Model, improving fraud detection (reducing card testing by 60%), boosting authorization rates, and expanding payment method support to 125+ methods; led microservice and dashboard work to improve observability and developer productivity.

TypeScript Go Java gRPC Kubernetes AWS PostgreSQL Datadog

Senior Software Engineer

Nextiva

Aug 2018 - Oct 2021 (3 years 2 months)

Engineered scalable microservices and AI voice-agent interfaces, achieving 99.99% uptime and supporting 500K+ daily requests while improving backend response times by 30% and reducing defects through improved testing and CI/CD.