Open to opportunities

Allan Tang

@allantang

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Senior backend engineer specializing in scalable cloud systems, real-time pipelines, and microservices.

United States

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What I'm looking for

I seek backend/platform roles where I can design scalable cloud systems, lead technical migrations, mentor engineers, and build high-throughput, reliable services with strong observability and security.

I am a Senior Software Engineer with 10+ years building high-performance backend systems, distributed microservices, and large-scale cloud platforms. I design and optimize metadata, storage, and data-processing systems—delivering solutions that scale to petabytes, billions of files, and millions of operations per second while reducing costs and improving latency.

I lead technical teams, mentor engineers, and drive migrations from monoliths to modular services using Go, Python, Java, and DevOps best practices. My work includes building async Kafka/SQS pipelines, secure storage and deduplication systems, observability and on-call ownership, and delivering production-grade APIs and internal tools that improve operational visibility and reliability.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Dropbox

Aug 2021 - Nov 2025 (4 years 3 months)

Designed and maintained core microservices for Dropbox's storage platform handling billions of files and petabyte-scale storage, reducing storage and bandwidth costs by 90%+ and achieving sub-millisecond metadata queries with 99%+ cache hit rates.

Go Python PostgreSQL Redis Kafka S3 Kubernetes gRPC

Senior Full-Stack Engineer

Agari

Nov 2017 - Jul 2021 (3 years 8 months)

Built and scaled Email Threat Protection and DMARC platforms, rewriting ingestion pipelines to handle 1.5M+ daily RUA reports (15× throughput) and improving global ingest stability with blacklist validation.

Ruby on Rails Python PostgreSQL MongoDB AWS Docker Terraform React

Backend Developer

Tata Consultancy Services

Jun 2016 - Nov 2017 (1 year 5 months)

Developed backend components and APIs for a Guidewire-based insurance platform, implemented ETL processes and automated test suites to ensure ODS data integrity and improved query performance.

Python SQL Oracle MySQL REST APIs ETL

Junior Software Developer

James Loudspeaker

May 2015 - Jun 2016 (1 year 1 month)

Built company website and admin panel, implemented searchable product pages and REST APIs using Node.js and PostgreSQL, and set up CI/CD and AWS deployment workflows to streamline releases.