Open to opportunities

Don Tran

@dontran

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Lead Software Engineer with 10+ years building fintech and SaaS platforms using Go, Java, React, AWS, and Kubernetes.

Vietnam

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What I'm looking for

I'm looking for remote opportunities to lead end-to-end delivery of cloud-native fintech, SaaS, or healthcare products, combining backend systems, full-stack development, DevOps ownership, and distributed-team collaboration.

I've led payment and wallet platform delivery at Grab, building high-concurrency Go workflows and Java/Spring Boot orchestration supporting 250K+ transactions per day. My work reduced duplicate and retry-related processing failures by approximately 35% while sustaining 99.95%+ availability on AWS and Kubernetes.

At Revolut, I operated Go and Node.js services for core banking, card, and transfer workflows serving 3M+ API requests daily. I improved p95 response latency by approximately 40% through PostgreSQL tuning, Redis caching, and batching, and reduced production diagnosis time by approximately 30% with SLO-focused observability.

I've also built secure payment and ledger workflows at Coinbase, multi-tenant commerce platforms at Teko, and SaaS and healthcare integrations at KMS Technology. Across these products, I've delivered React and Next.js interfaces, REST, GraphQL, and gRPC APIs, resilient asynchronous processing, and reliable CI/CD pipelines.

I enjoy owning end-to-end delivery across backend systems, frontend workflows, cloud infrastructure, security, and production operations while leading distributed remote teams.

Experience

Work history, roles, and key accomplishments

Lead Software Engineer, Fintech

Grab

Mar 2024 - Jul 2026 (2 years 4 months)

Led full-stack architecture and delivery for regional fintech payment and wallet services, combining high-concurrency Go processing, Java/Spring Boot orchestration, React/TypeScript tooling, and cloud/DevOps ownership on AWS and Kubernetes. Architected concurrent Go payment workflows supporting 250K+ transactions/day and reduced duplicate/retry-related processing failures by ~35%.