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Jeffrey Gabhart

Lead Software Developer

hello@cactuswren.dev · South Dakota · Risk Administration Services · GitHub · LinkedIn · Website

Two decades of building practical, maintainable software that holds up in production.

Experience

Risk Administration Services 2020 — Present
Lead Software Developer
  • Lead developer on risk and claims administration systems built with Python, Django, and PostgreSQL, owning architecture and technical direction.
  • Build and maintain web applications with Vue.js and REST APIs, backed by CI/CD on Jenkins and deployments to AWS.
  • Mentor developers and set coding standards, code-review practices, and delivery cadence across the team.
CentralSquare Technologies / TriTech Software Systems / Zuercher Technologies 2015 — 2020
Software Engineer
  • Maintained and enhanced nearly all areas of the public-safety platform (Python, C++, PostgreSQL), including numerous third-party integrations.
  • Designed a pattern to centralize and simplify the configuration of third-party integrations.
  • Redesigned the application dashboard, adding a drag-and-drop edit mode for customizable layouts.
  • Completed 450+ code reviews in 2019 to help the team deliver quality code.
  • Onboarded and mentored new hires, and used historical data to sharpen the team’s feature estimates.
The Local Best / Locals Love Us 2012 — 2015
Web Developer
  • Led development of the public local-business website (C#, AngularJS, Bootstrap, PostgreSQL, Redis).
  • Designed and delivered a custom CRM to manage accounts, orders, deliveries, and vote tallying.
  • Built a streamlined voting system to gather votes for local businesses.
  • Designed an SMS phone-number verification feature that grew verified voters and became the preferred method by 9 to 1.
  • Deployed and hosted the platform on Microsoft Azure, with deploy-status notifications integrated into HipChat.
CHR Solutions / Martin Group 2005 — 2012
Software Developer
  • Designed and delivered a credit card processing system integrated with Authorize.Net, CyberSource, and Billing Services Group gateways.
  • Built a billing integration with Microsoft Mediaroom that enabled monetization of video event purchases.
  • Created a deployment tool that cut application upgrade time from several hours to several minutes.
  • Led the accurate conversion of customer and accounts-receivable data for five telecommunications companies.
  • Maintained and enhanced accounts receivable, payroll, and customer self-care software (C#/.NET, ASP.NET MVC/Web API, WCF, WPF, NHibernate, Entity Framework), including added mobile-browser support.
  • Mentored developers with patterns-and-practices guidance.

Education

Dakota State University 2001 — 2005
B.S. in Computer Science
Dakota State University 2001 — 2005
B.S. in Mathematics for Information Systems

Projects

termfolio · https://github.com/jeffgabhart
This very site — a terminal-style portfolio.
Astro · React · TypeScript

Skills

Core stack
Python · Django · PostgreSQL · REST APIs · Vue.js · JavaScript · Bootstrap
DevOps & cloud
AWS · Vercel · Jenkins · CI/CD · Git
Tools & AI
Claude Code · Ollama · macOS
Earlier stack
C# · .NET · ASP.NET · WCF · WPF · NHibernate · Entity Framework · C++ · AngularJS · SQL Server · Redis · Azure
Certifications
AWS Cloud Practitioner