Christopher Zenzel

Software engineer · independent builder

Christopher Zenzel

Mobile, Web & Full-Stack

I build practical software across mobile, web, data, and local AI.

Connections
1,075+
Followers
1,100+

Executive summary

Software engineer, technical lead, and independent product builder with experience spanning mobile and desktop applications, full-stack systems, IT consulting, and connected-device engineering. I turn complex requirements into practical software, balancing product usability with performance, reliability, and maintainable architecture.

My current work ranges from leading application development and mentoring engineers to building Swift and Bluetooth Low Energy platforms, privacy-focused weather tools, and local-AI workflow software. I bring a hands-on approach from early technical design through implementation, testing, release, and ongoing support.

Software leadership Mobile & connected devices Privacy-first products

Experience

Jan 2026 — Present

Managed Ministries, Inc. logo

Senior Software Developer / Team Lead · Managed Ministries, Inc.

Design, develop, and maintain full-stack software and web applications, turning project specifications into reliable features. Collaborate with project management and an architect on implementation choices while keeping delivery aligned with established engineering practices.

Support junior developers through mentoring, check-ins, and pair programming. Review pull requests for quality, consistency, and alignment with requirements, helping the team deliver maintainable software.

  • Full-stack engineering
  • Technical leadership
  • Mentoring
  • Code review

Jul 2026 — Present

iOS & Bluetooth Low Energy Engineering Consultant · Confidential Client

Designed a modular, production-ready Bluetooth Low Energy platform in Swift 6 and a SwiftUI companion app. Built a layered Core Bluetooth architecture with strict concurrency, actor-isolated sessions, typed events, and an async client API.

Delivered firmware-update and Wi-Fi provisioning flows, connection recovery, and diagnostic tools for connected hardware. A fake transport and device simulator support 683 XCTest cases in CI without physical devices.

  • Swift 6
  • Core Bluetooth
  • Firmware updates
  • iOS

Aug 2025 — Jul 2026

Threefold Advisors logo

Senior Software Developer · Threefold Advisors

Provided product-development services across custom software, systems integration, and hardware maintenance. Diagnosed web-service outages, supported deployments, and advised on product features and functionality.

Worked with clients and contract manufacturers to define hardware specifications, strengthen quality-control practices, and resolve time-sensitive technical issues. Combined hands-on troubleshooting with strategic guidance to support reliable products and systems.

  • Product development
  • Systems integration
  • Hardware
  • Technical consulting
View all experience & education

Skills

My 12 most-endorsed skills, ordered by the endorsement totals displayed on LinkedIn. Ties are sorted alphabetically; endorsements are not a proficiency rating.

  • Microsoft SQL Server 14 endorsements
  • Windows 12 endorsements
  • Healthcare 5 endorsements
  • Information Technology 5 endorsements
  • .NET Framework 4 endorsements
  • CSS 4 endorsements
  • iPhone Application Development 4 endorsements
  • Microsoft Office 4 endorsements
  • Mobile Applications 4 endorsements
  • Process Improvement 4 endorsements
  • Social Media 4 endorsements
  • SQL 4 endorsements
Explore all 100 skills

Selected work

Founder-built · Mobile · Privacy-first teamWeather: Radar and Alerts A weather app with live NEXRAD radar, severe alerts, hyper-local forecasts, and on-device AI commentary. Built the product end to end, including radar processing, mobile apps, UX, and operations. AndroidiOSNOAA radarOn-device AI Founder-built · Local AI · In development Noduvo — Local AI workflow automation A visual workflow builder designed to connect triggers, actions, and AI while keeping compatible model execution and sensitive data on the user’s device. Local AIAutomationCross-platform
Data engineering · SQLite NitroBrewDB Compact, queryable cold storage for large open datasets using SQLite and custom compression. A 53 GB Discogs source dataset is reduced by about 35% while preserving SQL query access without full decompression. SQLiteData compressionSearch
Browse the project archive

Licenses & certifications

FEDERAL COMMUNICATIONS COMMISSION

Amateur Radio Extra License

Issued Oct 2011 · Expires Oct 2031

Current

COMMONWEALTH OF PENNSYLVANIA

Notary Public

Issued Oct 2023 · Expires Oct 2027

Current

MICROSOFT · MAR 2025

Introduction to Generative AI for Developers With Copilot

Developer-focused generative AI course certificate.

Course certificate
View all licenses & certifications

Volunteer experience

Sep 2017 — Jul 2022

Developer · TorahBank

Volunteered as a developer with TorahBank, contributing technical skills in support of an education-focused organization.

  • Development
  • Education
  • Volunteering

Aug 2017 — Mar 2018

President · RF Hill Amateur Radio Club — W3AI

Served as club president in the amateur-radio community, contributing volunteer leadership in science and technology.

  • Club leadership
  • Amateur radio
  • Science & technology

Jan 2017 — Jan 2018

Vice President · RF Hill Amateur Radio Club — W3AI

Contributed volunteer leadership as vice president of the club, supporting an amateur-radio organization focused on science and technology.

  • Club leadership
  • Amateur radio
  • Volunteering
View all volunteer experience

Education

Institution

Bucks County Community College

Get in touch

Interested in software engineering, mobile development, local AI, or a new product idea? Send me an email or connect with me on LinkedIn.