Aternex
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Austin Lippert

Software engineer and owner of Aternex LLC

I am Austin Lippert, a self-taught software engineer in Knoxville, Tennessee, and the owner of Aternex LLC. I have been putting software into production since 2003, and on many of those projects I was the only engineer on the problem.

I take a vague problem and turn it into working software, whether that means building from nothing or improving code that has grown hard to change. Improving code is the part I enjoy most.

I use AI agents every day, and while they make me faster, the judgment stays mine: every change goes through tests and review before it ships.

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How I work

  • I measure what I claim

    Every headline result on this site links to how it was measured, when, over what scope, and what it does not prove. Figures from earlier roles that have no proof page are my own account of that work.

  • Whatever the team runs

    .NET is my default, but I work in the stack you already have and move it toward the current long-term support release.

  • Fix the cause

    When a system is slow, I find what dominates the time and remove it in code before anyone reaches for more hardware.

  • Every industry runs on its data

    Data is where business software lives or dies. I have worked with it in telecom, healthcare, payments, manufacturing, nuclear services, lending, property management and logistics, and I enjoy learning how each industry handles its own data and its own rules.

  • Leave it easier to change

    The work is done when the next person can change the code safely, with tests that tell them when they have broken something.

  • Your data, agreed per project

    I use AI agents every day, and how they touch your data is agreed per project. Claude and Codex work on code and tasks that involve no private data. When data has to stay private, I run agents through zero-data-retention endpoints, where the provider keeps nothing, or on models that run entirely on local hardware, where it never leaves the machine.

Career

Every stint since 2003, newest first. Where the work was measured, the entry links to the proof; the other figures are my own account of each role, with no public source.

  • Full-time
  • Contract
  • Owner

  1. 2026Contract

    Resultstack

    Data platform and test rescue

    • Built a logistics warehouse and pipeline from scratch
    • Cut the pipeline cycle from 11 to 16 minutes to under 20 seconds
    • Restructured a dispatch engine and raised repo code health from 7.91 to 9.53

    Measured on the proof pages

  2. 2025 to 2026Contract

    TeamHealth

    Clinical analytics dashboard

    • Built a clinical analytics dashboard over HL7 messages fed from Oracle through InterSystems IRIS into SQL Server
    • Showed clinical metrics with no patient details, behind role-based access

    Measured on the proof pages

  3. 2022 to nowOwner

    Aternex LLC

    Owner

    • Contract engagements for MedSuite, InEight, BlueModus and Optu from 2022 to 2024
    • Led the move from TFS to Git with pull-request review at InEight, making deployments 60% faster
    • Raised client sites' Lighthouse scores at BlueModus from the 70s to the low 90s

  4. 2021 to 2022Full-time

    InhabitIQ

    AWS modernization and CI/CD

    • Moved four legacy processes to cloud-native services: more than 90% less runtime for the same work and 85% lower cloud cost
    • Took the largest cost, database hosting, from about $6,000 to $55 a month
    • Tuned CI/CD pipelines with unit tests in every build, cutting deployment time 60% and deployment errors to zero

  5. 2019 to 2021Full-time

    Check Into Cash

    Lending application

    • Built a customer-facing lending application that lifted loan conversion 40% and cut application completion time 81.25%

  6. 2018 to 2019Full-time

    TouchPoint Software

    Cloud build and test agents, ETL across platforms

  8. 2013 to 2014Full-time

    ATC Nuclear

    Services and APIs collecting data from plant hardware

  9. 2011 to 2012Full-time

    TransCard

    Payments and fraud

    • Added real-time fraud analytics; the framework cut fraud damages by 60%

  10. 2010 to 2012Full-time

    CSS Manufacturing

    Full-time, then retained to finish the work alongside TransCard

  11. 2007 to 2010Full-time

    TeamHealth

    Data and reporting

    • Built a quick screen that merged 16 screens into one and popped each caller's greeting, cutting average handle time from 140 to 65 seconds and training from a month to half a day
    • Replaced seven days of hand-keying a 5,000-call outbound list with an import that takes under five minutes

    Measured on the proof pages

  12. 2003 to 2007Full-time

    Comcast

    First development role

    • Replicated Oracle data to SQL Server
    • Replaced printed weekly and monthly AS/400 reports, retyped into Excel by hand, with a real-time reporting website, agent commissions included
    • Built an outage ticketing system for the 6 regions the call center served

Tell me about the problem

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