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Joshua Teitsch

@joshuateitsch

Message

I build cross-platform applications, automation, and data systems that ship faster.

United States

Message

At sterkly, I build and ship cross-platform user applications, installers, internal web platforms, APIs, and automation for partner distribution. I use agentic AI workflows to cut prototyping and development cycle time by up to 50% and automate repetitive testing steps by 80%+.

Previously at Abacus Data Systems, I redesigned data transformation systems to run in less than 5% of the original processing time and built accounting tools that reduced manual reconciliation from 8+ hours to seconds. My background also includes QA automation, browser extensions, performance analysis in Snowflake, and maintaining desktop and web applications.

Experience

Work history, roles, and key accomplishments

Software Engineer

Sterkly

Jan 2017 - Jan 2026 (9 years)

Used agentic AI workflows to prototype features and cut development cycle time by up to 50%. Built and shipped installers and user applications across Windows and Mac OS, and developed internal web applications, APIs, and build systems.

C#.NET Core MVC Razor Pages Entity Framework Jenkins WPF MAUI Python AngularJS JavaScript Swift Snowflake REST APIs Selenium Agile Git

Software Engineer

Abacus Data Systems

Jan 2016 - Jan 2017 (1 year)

Refactored and optimized a data transformation tool to execute in less than 20% of original processing time, and converted a 15,000+ line VB.NET codebase to C# 7.0. Architected a new data transformation system and implemented custom reporting solutions for clients.

C#VB.NET Polymorphism SQL Crystal Reports SQL Express NetSuite data transformation Performance Optimization

Sergeant / Radio Repair Technician

U.S. Marine Corps Reserves

Jan 2008 - Jan 2016 (8 years)

Managed marines and their training, developed training plans and schedules for monthly and annual exercises, and was accountable for serialized equipment and cryptography. Installed, troubleshot, and repaired communication equipment and peripherals.

Leadership Training Equipment Maintenance Troubleshooting Cryptography

QA Automation Engineer

Sterkly

Jan 2012 - Jan 2014 (2 years)

Created and maintained browser extension and webservice automation suites using Selenium, WebDriver, C#, NUnit, and WinForms. Developed automation using AutoIT, Image Recognition, OCR, and VMWare APIs to manage VMs and run scans for hundreds of applications.

Selenium Selenium Webdriver C#NUnit WinForms AutoIt Image Recognition OCR Automation

QA Specialist

Sterkly

Jan 2011 - Jan 2012 (1 year)

Created tools to assist QA testers with tasks such as managing VMs, HOSTS files, and internal settings using C# WinForms. Developed basic automation to test browser extensions with Selenium, WebDriver, SpecFlow, Ninject, NUnit, and C# for regression testing.