Open to opportunities

Aaron Chang

@aaronchang

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Senior software engineer specializing in backend systems and production AI/LLM infrastructure.

United States

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What I'm looking for

I seek roles building scalable backend and AI/LLM infrastructure on cloud platforms, with opportunities for technical ownership, mentorship, and impact.

I am a Senior Software Engineer with 8+ years building cloud-native backend systems, scalable APIs, and AI/LLM-powered applications. I deliver production RAG and orchestration pipelines, optimize infrastructure on AWS, and build high-performance microservices that handle large-scale event and telemetry workloads.

My work spans full-stack development, data engineering, and AI infrastructure—implementing ETL workflows, vector search, and agent-style orchestration using tools like LangChain, Pinecone, Databricks, and Kubernetes. I mentor engineers, collaborate across teams, and consistently improve reliability and performance for high-growth and enterprise environments.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Vectra AI

Jul 2025 - Jan 2026 (6 months)

Developed backend microservices and RAG/agent orchestration pipelines using Python and Node.js to process 500k+ security events daily, reducing analyst response time by 25% and maintaining sub-100ms p95 latency for real-time detection.

Python Node fastAPI Pinecone AWS Lambda API Gateway Databricks Redis

Software Engineer

Abnormal Security

Dec 2021 - Apr 2024 (2 years 4 months)

Architected email threat analysis and serverless microservices processing 2M+ emails daily, improving detection accuracy by 35% and enabling autoscaling from 50k to 2M emails per day with sub-200ms response times.

Python fastAPI AWS Lambda Apache Airflow Databricks Faiss PostgreSQL Kubernetes

Platform Engineer

May 2017 - Dec 2021 (4 years 7 months)

Built HPC telemetry and analytics platform APIs and data pipelines in Python, reducing report generation time from hours to minutes and enabling programmatic access to simulation tools via FastAPI wrappers.