James Guan

Experience

Defense platform (U.S. government customer)

Lead Software Engineer · Arlington, VA · May 2026 – June 2026

Hired to support development of a defense-related platform requiring a security clearance.

• Planned, authored, and presented observability documentation to improve monitoring, troubleshooting, and operational readiness.

Experience

Amazon (AWS)

Frontend Engineer II (L5) · Arlington, VA · October 2024 – April 2026

Shipped re:Invent 2025 console launches across AWS networking — Flexible Cost Allocation, Prefix List Resolver, and multi-partition analyzer rollouts.

• Led frontend development and integration for Flexible Cost Allocation (FCA) at re:Invent 2025 for Transit Gateway cost allocation across accounts.
• Recruited to help ship Prefix List Resolver in time for re:Invent 2025; tracked and delegated work via Asana.
• Deployed console infrastructure for Network Access Analyzer and Reachability Analyzer across commercial, GovCloud, and air-gapped partitions.
• Drove AI-assisted workflows (Cline context folders and shared prompts) and ran interview loops for the team.

Experience

Amazon (Ads)

Frontend Engineer II (L5) · New York, NY (Remote) · June 2022 – October 2024

Delivered Campaign Creation, Sponsored Products, and summary-page features with high stakeholder visibility.

• Shipped OpenTelemetry via CDK for a Campaign Creation replatform.
• Proposed and landed a responsive ingress page that cut cycles for adding new ad products.
• Mentored an intern and SDE apprentice who both received return offers; bar-raiser for PR quality among L6 engineers.

Experience

Capital One

Principal Associate Senior Software Engineer · McLean, VA · July 2021 – June 2022

Tech lead for customer acquisitions — standards, reviews, and cross-team delivery.

• Built and launched UI acquisition experiences for the Venture X card product.
• Led multiple teams to integrate separate acquisition experiences into one flow.

Experience

Capital One

Senior Associate Software Engineer · McLean, VA · December 2018 – July 2021

React UI on the credit card acquisition platform; translated stakeholder requirements into stories and docs.

• UI improvements drove a 10% increase in acquisitions (~$100M value).
• Built Node.js Lambda infrastructure to store NPI data in Snowflake for CCPA compliance.

Experience

Capital One

Java Developer III (Contract) · McLean, VA · May 2018 – December 2018

Serverless backend for Capital One’s Credit Card Referral Platform.

• AWS Lambda, Kinesis, SQS, and CloudFormation for referral platform infrastructure.
• Built a reusable Java DLQ reprocessing strategy on SQS for application-level errors.

Experience

The Bulldog Group LLC

Senior Software Engineer · Beltsville, MD · March 2018 – May 2018

Helped convert a Python monolith to microservices and shipped internal driver–dispatch chat.

• Docker, Angular 2, MySQL, and Python/Django.

Experience

G&G Outfitters Inc

Software Developer · Lanham, MD · May 2017 – March 2018

Built fulfillment services with Flask, Bootstrap, Angular.js, and Elasticsearch.

• Mongo migrations and Elasticsearch index generation.

Experience

Skirmos LLC

Co-Founder & Lead Programmer · Silver Spring, MD · May 2013 – January 2017

Open-source laser tag system — Kickstarter raised $98K; embedded C++/Arduino and Discovery Channel coverage.

• AVR, Arduino, and C++ for embedded libraries, filesystem, and GUI.
• 3D-printed retail and arena product models.

Education

University of Maryland, Baltimore County

B.S. Computer Science · Baltimore, MD · May 2017

Bachelor of Science in Computer Science.