Jul 2024 – Nov 2024 · 4 mos · Remote

• Contract PHP and web development supporting a medical software platform, including feature development and maintenance.

May 2020 – Feb 2024 · 3 yrs 9 mos · Remote

• Senior iOS engineer on the Edward Jones flagship consumer app, supporting millions of retail investors with core investing, banking, authentication, and accessibility-critical workflows used daily by the public.
• Manually maintained networking code was error-prone and drifting from backend contracts. Introduced OpenAPI-driven client generation on iOS using the OpenAPI Swift Generator, establishing a contract-driven foundation for consistent, automated networking across the app.
• Authentication handling was manually wired into each endpoint and easy to get wrong. Built OpenAPI-driven authentication middleware to automatically inject tokens and cookies into all network calls, eliminating per-endpoint setup and streamlining generated networking code.
• Rare but critical crashes and performance regressions were degrading production UX. Root-caused and fixed concurrency and lifecycle issues, eliminating high-severity crash paths and materially improving app stability and responsiveness.
• Key banking workflows were effectively unusable for visually impaired users. Implemented full VoiceOver support across core banking views, materially improving accessibility and enabling independent use for customers with severe visual impairments.

Mar 2019 – Apr 2020 · 1 yr 1 mo · Saint Louis

• Linux builds were failing to meet DoD security hardening requirements. Delivered hardened images achieving 94% SCAP compliance, exceeding the 90% DoD threshold and clearing a major security and audit risk.
• Secure, reliable software deployment was a major risk in classified military environments. Led the architecture and design of a secure deployment platform for aircraft software, establishing best practices that delivered high-performance, reliable builds under strict security constraints.
• CI/CD pipelines lacked consistent architecture and reliability for mission-critical deployments. Defined architectural standards and coding practices for build and release pipelines, delivering predictable, high-performance builds in high-stakes, classified environments.

Dec 2017 – Nov 2018 · 11 mos · Remote

• Field teams lacked real-time aerial visibility during operations. Engineered a live video streaming feature for the iTAK app, integrating geo-coded drone data to deliver real-time situational awareness and materially improve decision-making for military and first-responder users.
• Geospatial rendering latency was degrading operational workflows. Spearheaded integration of advanced ESRI mapping features using modern iOS architecture, reducing app latency by 33% and boosting operational efficiency by 14%.
• The team was using outdated iOS patterns and lacked consistent engineering practices. Drove adoption of modern iOS frameworks, mentored engineers on agile workflows, and established rigorous code review standards—boosting team productivity by 21% and improving overall reliability.

Jun 2017 – Nov 2017 · 5 mos · O'Fallon, MO

• Designed and implemented automated unit and UI tests, enhancing code reliability and reducing manual testing time by over 40%, showcasing a strong commitment to quality and efficiency.
• Initiated development of a new, multi-purpose iOS app for partner banks, expanding the range of services and functionalities available to users.
• Played a pivotal role in winning Mastercard's "Take Initiative 2017" hackathon, demonstrating exceptional coding and teamwork skills in a competitive environment.
• Created automated tests for existing legacy code, ensuring its stability and reliability.
• Identified and resolved multiple bugs in released apps, improving their performance and user experience.
• Converted existing Objective-C code to Swift where appropriate, enhancing future maintainability.

Feb 2010 – Apr 2017 · 7 yrs 2 mos · 1677 Mansion Way, O'Fallon IL 62269

• Led the creation of a pioneering platform that redefined secure digital ecosystems for the U.S. Intelligence Community, modeled after Apple's App Store and featuring advanced functionalities such as subscription management, app launch tracking, and a robust "app kill switch" for immediate access termination.
• GEOINT App Store served the National Geospatial Intelligence Agency, DoD, first responders, and the Intelligence Community offering 130+ applications across various classification levels with many developed commercially through the Innovative GEOINT Application Provider Program (IGAPP), tailored to meet the unique and sensitive needs of its users.
• Required for all GEOINT App Store submissions, it featured subscription management, enhanced security, app launch tracking, and an innovative "kill switch".
• Chosen for a subcontracted position with Microsoft, performing an extensive iOS application code and security audit for a leading financial firm merger due to mastery of mobile app security within the iOS development realm.

Jun 2004 – Aug 2009 · 5 yrs 2 mos

• Led companywide adoption of Perl standards, enhancing coding efficiency and maintainability.
• Optimized internal quality control tools, improving data integrity and efficiency by 24%.
• Collaborated with end-users to analyze and prioritize software requirements, enabling the creation of a multi-terabyte database of critical genetic data for research and development.
• Installed and troubleshot the genetic database system, ensuring reliability and performance.
• Served as the lead engineer for tool, providing scientists with access to critical genetic data.
• Fully maintained 20+ servers dedicated to the MEGA tool, ensuring continuous availability and performance.

Jan 1986 – Jan 1997 · 11 yrs

• Developed one of the first-ever web-based computer ordering systems, revolutionizing procurement processes with real-time updates and significantly enhancing customer satisfaction and operational efficiency.
• Designed and launched Ellsworth AFB's inaugural website, creating a foundational online presence that greatly improved communication and information dissemination for the base.