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ianjeffers/README.md

👋 Hi, I'm Ian Jeffers

I'm a Senior Software Engineer focused on backend systems, platform reliability, and large-scale infrastructure. My work spans logistics, identity verification, and compliance systems, particularly in high-volume, cloud-native environments.

  • 💼 Senior Software Engineer at Walmart Global Tech (Spark/Driver Identity & InHome Platforms)
  • 🧠 B.S. in Cognitive Science (Machine Learning & Neural Computation) from UC San Diego
  • 🛠 Former intern at AWS; experienced across Azure, Kubernetes, Kafka, and Spring Boot
  • 🔍 Passionate about solving hard backend problems, building scalable systems, and delivering measurable impact

⚙️ Core Skills

Languages: Python · Java · JavaScript · TypeScript · SQL
Frameworks & Tools: Spring · Node.js/Express · Docker · Kubernetes · GraphQL · Kafka · Prometheus · Terraform · Helm
Cloud: AWS · Azure
Testing: JUnit · Mockito · Jest/Mocha
Other: CI/CD pipelines · Infrastructure as Code · React (when necessary)

🧩 Featured Projects

  • HealthMSMHacks 15 "Best Medical Hack"
    NLP-powered health journaling platform for symptom tracking and MS progression.
    Stack: Flask · MongoDB · Azure · React · Auth0

  • GitHub Contexts Plugin
    ChatGPT plugin for navigating GitHub repos and enhancing code search workflows.

💼 Experience Highlights

Walmart Global Tech – Senior Software Engineer

  • Built Spark Driver identity verification systems for 1.6M+ drivers
  • Scaled backend infra to support >1.1 deliveries/sec across millions of orders/year
  • Cut infra costs by $10K/month while reducing incidents 40% YoY
  • Migrated video systems off Azure Media Services, unlocking $4M/year projected savings

Amazon Web Services – SDE Intern

  • Built a shadowing service to improve platform migration reliability for 100K+ daily builds
  • Led CI/CD pipeline work and CloudWatch monitoring across Builder Tools org

PairAnything – Lead SWE Intern

  • Managed backend development and intern team coordination
  • Built Yelp-powered recommendation engine with scraping and API integrations

ObjectSecurity – Software Engineering Intern

  • Implemented offline speech-to-text transcription for sensitive meeting summaries in high-security environments
  • Evaluated model performance and accuracy tradeoffs using ML concepts, comparing multiple transcription engines
  • Built a lightweight Bootstrap frontend for user interaction and result presentation

🎓 Education

University of California, San Diego
B.S. in Cognitive Science (Specialization in ML & Neural Computation)

🔗 Connect with Me


Pinned Loading

  1. HealthMS HealthMS Public

    Repo for the MHacks 15 hackathon

    JavaScript

  2. OsBailo02/Cogs189_BCI_VRLink OsBailo02/Cogs189_BCI_VRLink Public

    Python 1 1

  3. HealthMS-Backend HealthMS-Backend Public

    Backend Server for MHacks 15 HealthMS Project

    Python

  4. FoodScraper FoodScraper Public

    Given a Yelp menu, scrape the items and restaurant name and add them to a SQL database

    Python

  5. WebcamAI WebcamAI Public

    Python