Experience

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  Bitwerx, Inc.

  • Lexington, Kentucky, United States

  • Senior Software Engineer

    • Nov 2022 - Present
    • Lexington, Kentucky, United States

    • Development of a data pipeline infrastructure project, employing Azure cloud services, Kubernetes, and NoSQL technologies such as Elastic Cloud on Kubernetes (ECK), ensuring timely delivery and high-quality results.• Utilized a software stack including C#, .NET 7.0, NativeAOT, Windows services, and desktop applications to design and implement robust, efficient, and scalable solutions.• Actively participated in Agile development practices, including code reviews, demos, QA orientation, sprint planning, sprint retrospectives, design meetings, and daily huddles, ensuring effective collaboration and project success.• Conducted code reviews and provided mentorship to junior team members, fostering a culture of continuous learning and improvement while emphasizing best practices in C#, .NET, and other relevant technologies.• Integrated OpenTelemetry for monitoring and observability, improving system reliability and performance.

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  LexGetDigital, LLC

  • Lexington, Kentucky, United States

  • Owner

    • Apr 2022 - Present
    • Lexington, Kentucky, United States

    • Contract engineering services, especially software engineering services• Business analysis, process discovery, and business value creation services• Manager upskilling and project collaboration services• Web Development (ASP.NET Core, .NET 6, C#, MVC, Razor, Blazor, Bootstrap 5.2.1, JavaScript, CSS, HTML, DevExpress, Visual Studio 2022, VS Code, Azure DevOps, Multi-tenant)• SQL/NoSQL Database Development (MS SQL Server, Maria DB / MySQL, Elasticsearch)• Cloud Services (Azure)• Integration of MIT/Apache 2.0 Licensed Open-source Software into Web Projects

• 

  LockNet

  • United States
  • Facilities Services
  • 100 - 200 Employee

  • Director of Software Engineering

    • Mar 2021 - Apr 2022

    • Lead, manage, and hold accountable (LMA) the IT Department Software Development Team• Optimize performance of the development team to achieve maximum efficiency• Participate as member of the LockNet Leadership Team• Software architecture, design, and implementation• Internal software (including Windows software, web, mobile, etc.)• Integration with ERP, Third Party Systems, Etc.• Work with Leadership, Director of IT, and Technology Steering Committee to identify and implement third party software including ERP• Collaborate consistently with Director of IT to maximize software efficiency and performance on LockNet hardware and infrastructure• Implement and lead a formal SDLC methodology for software development that includes: Defined Sprints, Formal work intake process (i.e. user stories & prioritized backlog), Daily SCRUM, Weekly story grooming (or as needed), Formal release process that includes Quality Assurance and User Acceptance Testing prior to production release

  • IT Manager

    • Jan 2018 - Feb 2021

    • Active and passionate member the Executive Leadership Team and participated in quarterly and annual off-site planning sessions with company ownership • Managed up to four direct reports across areas of software engineering and IT operations • Lead the software engineering team, setting architectural direction for desktop mobile, and web apps, phone-system, network and server architecture• Nearly daily use of SQL Server and other Microsoft technologies to provide profit-focused data analytics to multiple areas of the business• Enabled entire office staff to work from home due to COVID-19 risk on very short notice, and rolled out safety-focused systems changes to protect essential workers at warehouse• Microsoft SQL Server 2017 upgrade, database administration and maintenance• Other Microsoft infrastructure management including SQL Server Report Services, SharePoint, Office 365, and a clustered server environment with automatic failover and high-availability • Roll-out of multiple information security improvement initiatives (email and internet browsing risk awareness training, firewall upgrades to implement cloud-enhanced DPI/SSL scanning of traffic, change to website whitelisting model, modernized endpoint protection software) • Implemented automated 100+ TB offsite backup storage of all critical SQL data, file server data, server/VM images on a shoestring budget of $6000 with a recurring monthly cost of only $350

  • Software Engineer

    • Feb 2017 - Jan 2018

    • Development and maintenance of multiple Windows desktop applications created using WinForms for VB.NET, DevExpress UI components, and Microsoft T-SQL• Integration with the Macola Progression ERP system at the SQL database level• Maintenance of multiple cross-platform internal and external-facing mobile apps created using Xamarin/C#.NET• Maintenance of ASP.NET internal and external-facing web applications on IIS web servers• Porting of legacy Microsoft Access application to newer .NET technologies• Collaborated with owners, manager, and direct reports across the company to develop scopes of work

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  Big Ass Fans

  • Lexington, Kentucky Area

  • Program Manager, Connected Devices

    • Oct 2014 - Jan 2017
    • Lexington, Kentucky Area

    • Project management activities for the software projects related to the residential Internet of Things (IoT) products such as fans, lights, and wall controls sold under the Haiku Home brand• Provided management support for a team of up seven mobile app and firmware developers• Coordinated AWS-hosted cloud development activities with a contract software development company• Interfaced with west-coast IoT integration partner companies on collaborative initiatives• Attended conferences and performed media interviews on behalf of the company• Interviewed prospective developer candidates• Worked with product management to capture and create engineering requirements• Advocated on behalf of the software engineers on my teamRelated Links:• https://www.datainnovation.org/2015/06/5-qs-for-jerrill-johnson-program-manager-for-connected-devices-at-big-ass-solutions/• http://www.stitcher.com/podcast/fix-it-home-improvement-5/fix-it-home-improvement/e/ceiling-fans-37982593

• 

  dormakaba

  • Switzerland
  • Wholesale Building Materials
  • 700 & Above Employee

  • Engineering Project Manager, Electrical Engineering Leader

    • Jul 2010 - Oct 2014

    • Provide management support for the entire electrical engineering group• Responsible for directing a team of up to ten engineers and software developers responsible for existing product support and new product design and development on multiple projects• Project management activities for Cencon, the automatic teller machine (ATM) lock product line which is key to the success of the company• Project management activities for Gitcon, the cargo lock product line• Coordination of development and design support activities between engineering, sales, marketing, and manufacturing for multiple projects• Interfaced with corporate Gitcon customers to facilitate product installations• Interviewed prospective programmer candidates

  • Engineering Project Manager, Senior Programmer

    • Sep 2009 - Jun 2010

    • Responsible for directing a team of three engineers responsible for existing product support and new product design and development• Project management activities for Gitcon, the cargo lock product line• Coordination of development and design support activities between engineering, sales, marketing, and manufacturing• PC software development (VB.NET, C#, C++/CLI .NET)• Software projects include peer-to-peer file transfer via USB transfer cable• Interviewed prospective programmer candidates• Manufacturing support

  • Senior Programmer

    • Apr 2007 - Sep 2009

    • Firmware development (C, C++), testing, and debugging for self-powered electromechanical locks used in automatic teller machines• PC and PDA software development (Visual Basic .NET 2005 – 2008, C++/CLI .NET), testing, and debugging for safe and container lock management• SQL database development and administration (Microsoft SQL Server 2005 – 2008)• Member of a software development team• Automated testing of embedded software systems• Produced detailed marketing and engineering design documentation used by myself and other developers• Interviewed prospective programmer candidates• Manufacturing support• Maintained a reputation for delivering both long- and short-term projects on-time and with the highest degree of quality

  • Programmer

    • Oct 2004 - Apr 2007

    • Firmware development (assembly language, C), testing, and debugging for self-powered and battery-powered locks used in access control applications• PC and PDA software development (Visual Basic .NET 2003 – 2005) for container locks• SQL database development and administration (Microsoft SQL Server 2000 – 2005)• Electronic hardware prototyping• Participated in design reviews• Worked as a member of a software development team• Produced detailed marketing and engineering design documentation used by myself and other developers• Manufacturing support• Established a reputation for delivering both long-term and short-term projects on-time, and with a high degree of quality

  • Associate Programmer

    • Jun 2001 - Oct 2004

    • Firmware programming (assembly language), testing, and debugging for self-powered electromechanical locks used in automatic teller machines and access control applications• PC and software development (Microsoft Visual C++) for container locks• Quickly familiarized myself with existing hardware and software designs• Established a reputation as a quick learner and effective communicator• Manufacturing support

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  Cable Development Consulting

  • United States
  • Telecommunications
  • 1 - 100 Employee

  • Design Department Supervisor

    • Oct 1999 - Apr 2001

    • Managed the design of broadband-capable cable television system construction projects and system upgrades where reuse of existing components was a design requirement• Organized the work of team of up to 4 designers• Coordinated work flow with other departments• Work was critical to the company’s success• Supported customers nationally via telephone and in-person• PC software development (Visual Basic)• Mentored junior designers

  • Designer

    • Jul 1998 - Oct 1999

    • Performed design for new and upgrade cable television systems• Learned new skills and specialized computer software quickly• Established a reputation as a dependable, energetic worker

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  Self-Employed (dba Jerrill Johnson Computer Consulting)

  • Lexington, Kentucky Area

  • Owner and Chief Consultant

    • Sep 1996 - Jul 1998
    • Lexington, Kentucky Area

    • Opportunity originated from an independent research project on software marketing completed through the University of Kentucky Honors Program• PC software development (Visual Basic)• Contract IT support for several central Kentucky long term care facilities performing state-mandated computerization of resident records• Interaction with facility administration personnel at all levels• Business administration experience• Sub-contractor selection• Established a solid, professional reputation among long-term care facility administrators in the central Kentucky area