Hey there 👋 I'm

Andy Nguyen.

I'm a senior software engineer who builds fast, friendly full-stack products and AI-powered features with JavaScript & Node.js. Based in sunny Jacksonville, FL.

See what I've built Grab my résumé
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01

About

Portrait of Andy Nguyen
Dexter, Andy's corgi
Dexter, my coworker 🐾

I'm a senior software engineer who loves turning messy, ambiguous problems into clean, friendly software.

At Breezy HR I work across a full-stack JavaScript and Node.js platform. Lately I've been building LLM-powered features, including an AI candidate-sourcing tool that surfaces the best-fit applicants from a company's existing database. I also own production releases and incident response, and chase fun wins like trimming our image-infrastructure bill by roughly 97%. I care about the details people never notice and the ones they feel every day.

When I'm not in the editor, you'll find me on the pickleball court, hunting down a really good cup of coffee, or hanging out with my corgi, Dexter. ☕

Focus
Full-stack JS & Node.js
Based in
Jacksonville, FL
Currently
Sr. Engineer @ Breezy HR
Education
B.S. CIS · UNF
02

My toolkit

Frontend

  • React
  • Vue & Vuex
  • Angular
  • Svelte / SvelteKit
  • TypeScript

Backend

  • Node.js
  • Express & Koa
  • MongoDB & SQL
  • Redis & BullMQ
  • Elasticsearch

AI / LLM

  • LLM integration
  • Structured output
  • LLM pipelines
  • Prompt design
  • Cost optimization

Cloud & Tools

  • AWS
  • Docker
  • REST APIs
  • CI / CD
  • Git
03

Experience

  1. Apr 2023 – Present

    Senior Software Engineer

    Breezy HR · Remote

    • Architected and shipped an AI-powered candidate sourcing feature that surfaces best-fit candidates from a company's existing applicant database, with credit-aware execution and matches streamed to recruiters in real time.
    • AI-evaluated tens of thousands of candidate profiles, surfacing 1,000+ strong matches across dozens of companies.
    • Hardened the reliability of AI applicant scoring, eliminating a class of silent failures so a bad result is always visible and retryable instead of shown as a real score.
    • Diagnosed and fixed cross-service failures in async job pipelines, eliminating recurring errors in the sourcing and scoring workflows.
    • Own weekly production releases: branch management, config propagation, deployments, smoke testing, and incident escalation with hotfixes.
    • Migrated the image delivery / optimization stack (DNS cutover, URL rewrites, app changes), cutting monthly image-infrastructure spend by ~97%.
    • Implemented AvaTax-based tax collection across state tax codes, integrated with Stripe for accurate checkout and invoicing.
    • Audited and corrected GDPR / CCPA consent workflows across candidate import paths, ensuring compliance with data-privacy regulations across US and EU regions.
    • Mentor junior & mid-level engineers through PR reviews and design discussions, and act as interim engineering lead during manager absences.
  2. Dec 2019 – Apr 2023

    Software Engineer

    Breezy HR · Remote

    • Built and shipped full-stack ATS features, partnering with Product and Support on customer-facing improvements.
    • Localized the platform to 17 languages, enabling international adoption.
    • Led customer data migrations from Google Hire, Jobvite, and Greenhouse via mapping, transformation, and scripting.
    • Developed and maintained Node.js API services and integrations, improving reliability across core workflows.
  3. Mar 2017 – Dec 2019

    Software Engineer

    APPX Software, Inc. · Jacksonville, FL

    • Owned AXAEM development for public-sector and university archives, delivering features across requirements, implementation, testing, and releases.
    • Debugged and resolved customer issues through root-cause analysis, improving stability and user experience.
    • Worked with client stakeholders on requirements and delivery, managing bug / feature intake and prioritization in Trello.
    • Administered client test / production server backups and upgrades, and mentored interns and trained new hires.
04

Things I've built

Featured · Breezy HR
1,000+ best-fit candidates
surfaced to recruiters
AI / LLMRecruiting

AI Candidate Sourcing

An AI feature that mines a company's existing applicant database to surface the best-fit people for any open role, with matches streamed to recruiters in real time. No new sourcing spend, just smarter use of the candidates they already have.

  • AI-evaluated tens of thousands of candidate profiles, surfacing 1,000+ strong matches across dozens of companies.
  • Owned the recruiter workflow end to end, from suggested matches to automated outreach.
  • Built data-quality guards so stale or low-quality profiles stay out of recommendations.
  • AI / LLM
  • Node.js
  • Real-time
  • Recruiting
Breezy HR Reliable AI

Trustworthy AI Scoring

Recruiters score every applicant against a role with AI. I tracked down a class of silent failures that returned invalid or zero scores, then rebuilt the flow so a bad result is always visible and retryable, never shown as a real score. Eliminated hundreds of mis-scored evaluations a day.

  • AI / LLM
  • Reliability
  • Node.js
Breezy HR Integrations

Self-Serve Marketplace Integration

A one-click integration that lets companies activate the product straight from a major HR / payroll marketplace, with the sales pipeline kept in sync automatically. Event-driven activation replaced a manual onboarding process and kept records accurate across trial, activation, and cancellation.

  • Integrations
  • Event-driven
  • Salesforce

More on GitHub.

05

Say hello

Let's build
something extraordinary together.

Have a role, a project, or just want to say hi? My inbox is always open.