Open to opportunities

Antoine Tan

@antoinetan

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Senior full-stack engineer specializing in high-concurrency Python backends.

United States

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What I'm looking for

I seek remote senior engineering roles focused on scalable Python backends and AI integration, where I can lead architecture, improve performance, and ship reliable, user-facing products within collaborative, engineering-driven teams.

Software Engineer with 12 years of experience building and maintaining production systems across enterprise, platform, automation, and healthcare AI domains. Started career working on frontend and Java-based enterprise applications, then grew into backend-heavy and full-stack roles focused on Python, distributed systems, and real-world reliability.

Currently specialize in Python backend and full-stack development, including FastAPI, Django, asynchronous processing, PostgreSQL, and real-time systems, with hands-on experience integrating AI models into user-facing products under strict performance and safety constraints. Comfortable working across the stack with React, TypeScript, and Next.js, and experienced operating services in AWS-backed production environments.

Known for writing pragmatic, maintainable code, debugging complex production issues, and collaborating closely with product, ML, and frontend teams to ship systems that hold up under real usage rather than ideal conditions.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Rad AI

Jan 2024 - Dec 2025 (1 year 11 months)

Rebuilt the core inference delivery layer into an async-first FastAPI architecture to reduce radiologist-facing lag and hardened task processing to handle millions of patient records per day, improving platform stability during traffic spikes.

Python fastAPI AsyncIO WebSockets Performance Optimization Clinical AI

Senior Software Engineer

Zapier

Jun 2020 - Dec 2023 (3 years 6 months)

Engineered core automation logic and scaled asynchronous backend services for Zapier Editor, Partner API, Tables and Interfaces, and integrated LLMs to enable Natural Language Actions across 5,000+ apps, improving throughput during peak events.

Python Django AsyncIO React APIs Performance Tuning

Full Stack Developer

Magic Leap

May 2017 - Apr 2020 (2 years 11 months)

Developed and maintained a React + Python Enterprise Console and real-time visualization dashboards, automated Lumin SDK build-and-test pipelines to reduce internal release cycles by 20%, and implemented scalable Django APIs for spatial data imports.

React Python Flask WebSockets Automation Spatial Computing CI CD Developer Tools

Software Developer

Citrix

May 2014 - Apr 2017 (2 years 11 months)

Contributed Java automation for virtual delivery agent registration, built reusable React UI components for Octoblu automation dashboard, and developed tests for asynchronous messaging modules to improve reliability of real-time workflows.

Python React REST APIs Asynchronous Testing