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Senior Software Engineer with 10+ years of experience building and operating production-scale backend and full-stack systems serving hundreds of millions of users. Deep expertise in distributed systems, API design, and service reliability across large consumer platforms. Strong command of Node.js, Python, Java, and TypeScript, with experience integrating AI/ML workflows using FastAPI. Proven ability to reason through unfamiliar codebases, evaluate architectural tradeoffs, and clearly communicate technical decisions while balancing scalability, maintainability, performance, and security.…Senior Software Engineer with 10+ years of experience building and operating production-scale backend and full-stack systems serving hundreds of millions of users. Deep expertise in distributed systems, API design, and service reliability across large consumer platforms. Strong command of Node.js, Python, Java, and TypeScript, with experience integrating AI/ML workflows using FastAPI. Proven ability to reason through unfamiliar codebases, evaluate architectural tradeoffs, and clearly communicate technical decisions while balancing scalability, maintainability, performance, and security.

Alan Lac

Software Engineer, Back-End Developer, Full Stack Developer, +2

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Senior Software Engineer with 10+ years of experience building and operating production-scale backend and full-stack systems serving hundreds of millions of users. Deep expertise in distributed systems, API design, and service reliability across large consumer platforms. Strong command of Node.js, Python, Java, and TypeScript, with experience integrating AI/ML workflows using FastAPI. Proven ability to reason through unfamiliar codebases, evaluate architectural tradeoffs, and clearly communicate technical decisions while balancing scalability, maintainability, performance, and security.…Senior Software Engineer with 10+ years of experience building and operating production-scale backend and full-stack systems serving hundreds of millions of users. Deep expertise in distributed systems, API design, and service reliability across large consumer platforms. Strong command of Node.js, Python, Java, and TypeScript, with experience integrating AI/ML workflows using FastAPI. Proven ability to reason through unfamiliar codebases, evaluate architectural tradeoffs, and clearly communicate technical decisions while balancing scalability, maintainability, performance, and security.

Available to hire

Senior Software Engineer with 10+ years of experience building and operating production-scale backend and full-stack systems serving hundreds of millions of users. Deep expertise in distributed systems, API design, and service reliability across large consumer platforms.

Strong command of Node.js, Python, Java, and TypeScript, with experience integrating AI/ML workflows using FastAPI. Proven ability to reason through unfamiliar codebases, evaluate architectural tradeoffs, and clearly communicate technical decisions while balancing scalability, maintainability, performance, and security.

Skills

Experience Level

Expert

Expert

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Intermediate

Language

Javanese

Advanced

Work Experience

Senior Software Engineer at Dropbox

August 20, 2017 - Present

Designed, built, and operated backend services in Node.js and Python supporting file sync, sharing, and metadata workflows at massive scale. Integrated AI/ML-driven systems and LLM-based automation workflows for internal tools using FastAPI, improving engineering efficiency and system intelligence. Led architecture reviews for distributed systems, evaluating tradeoffs across latency, throughput, and reliability across multi-service environments. Built and maintained frontend dashboards and internal tools using React and TypeScript. Diagnosed production incidents using distributed tracing, logs, and metrics across multi-language systems. Improved system performance via caching, batching, and query optimization, reducing latency on high-traffic services. Owned CI/CD pipelines with automated testing, staged rollouts, and monitoring-based deployment strategies. Mentored engineers on backend design, frontend architecture, and high-quality technical documentation.

Software Engineer at Pocket Gems

June 20, 2012 - August 20, 2017

Built backend game services in Node.js, Java, and Python on Google App Engine (GCP), powering real-time gameplay and monetization systems. Designed APIs and data models for player state, in-game economies, and event-driven systems at scale. Built analytics and A/B testing pipelines supporting product decisions and live experimentation platforms. Developed frontend-facing admin and analytics tools using JavaScript and early React-style frameworks to enable real-time insights for internal teams. Introduced early data-driven and ML-assisted experimentation systems, supporting segmentation and behavioral prediction workflows. Optimized high-traffic systems and data store performance under heavy load, reducing latency and infrastructure costs. Partnered with product, data, and client teams to translate requirements into scalable system designs. Mentored junior engineers and helped define backend engineering standards and on-call practices.