Jeff Knutson, Developer in Phoenix, AZ, United States
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Jeff Knutson

Verified Expert  in Engineering

Software Developer

Phoenix, AZ, United States
Toptal Member Since
April 12, 2014

Jeff is a full-stack developer and entrepreneur with 25+ years of experience working with Fortune 100 companies, such as 3M, Best Buy, Target, Thomson Reuters, and medium/small businesses. He's led development teams and also acted as a strong individual contributor. Most of his experience has been in the Microsoft technology space, but in recent years, Jeff has primarily worked on React and Angular to sharpen his front-end skills.


GateKeeper Systems Inc.
React, CSS, Jest, .NET, Microsoft SQL Server, Web API
Good Guy Consulting
Microsoft SQL Server, ASP.NET MVC, Web API, Angular, React, JavaScript, C#, .NET
Visual Studio Code (VS Code), GitHub, React Redux, Jest, React




Preferred Environment

Git, JavaScript, C#, Visual Studio Code (VS Code), React, React Redux, Angular

The most amazing...

...thing I've built is a prototype (2001-2003 at Microsoft) together with another developer, which was shown to Bill Gates!

Work Experience

Full Stack Developer

2021 - PRESENT
GateKeeper Systems Inc.
  • Built a new customer-facing application for airport safety monitoring and reporting.
  • Created application structure and primary developer.
  • Helped bring a new application into BETA. The launch is coming soon.
Technologies: React, CSS, Jest, .NET, Microsoft SQL Server, Web API

Principal Good Guy

2008 - PRESENT
Good Guy Consulting
  • Provided custom software consulting, development, and training services for the financial, IT, insurance, legal, and retail industries.
Technologies: Microsoft SQL Server, ASP.NET MVC, Web API, Angular, React, JavaScript, C#, .NET

Senior Full-stack Developer

2019 - 2021
  • Served as a senior developer on the Cargill Digital Experience Platform (DXP) team.
  • Owned the development of enterprise-level React applications and component libraries and enforced code reviews.
  • Mentored junior developers and acted as a technical reference for various DXP teams.
Technologies: Visual Studio Code (VS Code), GitHub, React Redux, Jest, React

Full-stack Developer

2019 - 2019
BlueStem Brands, Inc.
  • Acted as a full-stack developer on the tools team for Bluestem.
  • Owned the development and support of internal web applications/tools used to publish content to the various Bluestem retail web properties.
  • Awarded with Bluestem Teamwork, a quarterly award given to acknowledge teamwork and accomplishment.
Technologies: Chai, Sinon.JS, Git, Jest, React

Full-stack Developer

2017 - 2019
Brightpeak Financial
  • Developed web applications allowing applicants to apply for savings accounts and term life insurance policies with Thrivent Financial.
  • Built a back-end API using C#, MSTest, Moq, Bitbucket, Jenkins, and ASP.NET Web API to collect health questionnaire information. This system allowed customers to provide their own health information for an insurance application instead of having a customer service representative collect it on the phone.
  • Provided production support for Brightpeak web applications. Developed PowerShell scripts to automate common support tasks, wrote ad-hoc SQL queries to read/update support data in SQL Server, and maintained/enhanced several C# WinForms support tools.
Technologies: Microsoft SQL Server, Windows PowerShell, Angular, JavaScript, C#

Adjunct Faculty

2017 - 2017
Divergence Academy
  • Taught a three-day Windows PowerShell course. The curriculum is based on the book Learn Windows PowerShell in a Month of Lunches by Don Jones.
Technologies: Windows PowerShell

Front-end Developer

2016 - 2017
Best Buy
  • Re-platformed the Best Buy Mexico website ( to the in-house platform. Helped migrate the Best Buy Global Header/Footer from English to Spanish, built the store details page, and built portions of the product display page. Other responsibilities included production support, release management, creating Jenkins jobs for builds/running automated tests, and interviewing new candidates.
  • Built Geek Squad on Demand (GSoD). In September 2016, Best Buy piloted GSoD in the Cleveland and Atlanta markets to help consumers schedule in-home tech repair and support for their consumer electronics. I worked directly with the business stakeholders and designers to implement an MVP.
  • Developed the front end for a new page on containing content relevant to post-purchase (product manuals, Geek Squad Protection plan details, product specifications, and links to Geek Squad support options). Version 1.0 of the product support page went live in November 2016, just prior to the holiday season and was built as an MVP geared towards televisions only. Technologies used: JavaScript, Backbone.js, Mocha, Git, Webstorm, Grunt, and Jenkins.
Technologies: Jest, Visual Studio Code (VS Code), Express.js, Node.js, React

Full-stack Developer

2015 - 2016
Dow Jones
  • Developed/supported the site.
  • Prototyped customer self service for the Wall Street Journal using React and Node.js.
Technologies: Node.js, Git, React, Web API, NUnit, .NET, Visual Studio 2015, C#

Application Security Specalist

2014 - 2015
Best Buy
  • Performed security assessments/penetration testing.
  • Provided technical guidance, consulting, and governance for Best Buy's customers, workforce, partners, and other business stakeholders regarding security best practices.
  • Handled code reviews for security defects.
  • Wrote ad-hoc PowerShell scripts to perform specific security assessment actions.
  • Maintained and enhanced internal websites used for doing penetration testing and generating reports.
Technologies: NMap, Kali Linux, Windows PowerShell, AngularJS, jQuery, JavaScript, IBM Security AppScan, Burp Suite


2014 - 2014
Cache Financial Services
  • Provided .NET and JavaScript development expertise for a provider of mobile remote check deposit capture services for small to midsize financial institutions.
  • Supported and added new features to an internal website used by the bank’s back office to review/approve/decline uploaded checks.
  • Participated in peer reviews for all code check-ins.
Technologies: IIS, Microsoft SQL Server, JavaScript, ASP.NET MVC, C#

Web Development Consultant

2014 - 2014
Thomson Reuters
  • Helped build new features for the WestLaw Next suite.
Technologies: TFS, XSLT, Visual Studio 2012, C#, JavaScript, Backbone.js, AngularJS

Web Development Consultant

2012 - 2014
Best Buy
  • Helped develop and support the In-Store and Online TradeIn applications, for the Secondary Markets Division. The application was used by the BestBuy employee whenever a client brought in a device for trade-in, to determine the value of the item brought in.
  • Created a PowerShell module to automate code submission for static code analysis to Veracode.
  • Created the initial threat model and worked with the internal Best Buy Enterprise Information Protection team to identify, classify and mitigate threats.
Technologies: Windows PowerShell, TFS, HTML5, jQuery, JavaScript, REST, Ajax, C#, Microsoft SQL Server, ASP.NET MVC, .NET 4

Team Lead/Consultant/Developer

2011 - 2012
Thomson Reuters
  • Was a tech lead/developer for the FirmCentral and Concourse products, for the Thomson Reuters Legal division.
Technologies: Backbone.js, TFS, MSTest, JavaScript, jQuery, ASP.NET MVC, .NET 4, C#


2010 - 2011
Dow Jones
  • Helped build a data import tool to get Telekurs data into the Dow Jones system.
Technologies: jQuery, MSTest, Castle Windsor, ActiveRecord, C#, Visual Studio 2010


2008 - 2010
Thomson Reuters
  • Documented WestLawNext™.
Technologies: TFS, Microsoft, MSTest, XML, XSLT, JavaScript, IIS, Windows Communication Framework (WCF), ASP.NET MVC, Visual Studio 2008, .NET, C#

Principal Consultant

2006 - 2008
Magenic Technologies
  • Developed a financial calendar web service, ETF center, ETF screener, and live usage statistics.
Technologies: NUnit, Subversion (SVN), SQL Server 2005, SOAP, IIS, Ajax, JavaScript, Windows Communication Framework (WCF), ASP.NET, Visual Studio 2005, .NET, C#

Senior Consultant

2004 - 2006
  • Developed for a license plate printing manufacturing system, a loan processing system, and a price quoting system.
Technologies: NUnit, SQL Server 2005, NHibernate, Web Services, ASMX, Visual Studio 2005, .NET, C#

Software Engineer

2004 - 2004
  • Developed an automated build and deployment system.
Technologies: Visual Studio, .NET, C#

Software Engineer

2001 - 2004
  • Collaborated with a peer to prototype a plug-in UI. The leadership team demonstrated this prototype to Bill Gates!
Technologies: SQL Server 2000, ADO.NET, Visual Studio, .NET, C#

Senior Consultant

1997 - 2001
  • Developer an internet portal for the energy management division.
  • Mentored fellow developers on the team.
  • Developed for the Target intranet portal which delivered a news feed, rotating ads, and a stock ticker.
  • Contributed to the development of a tire retreading manufacturing system.
Technologies: Visual SourceSafe, SQL, VBScript, JavaScript, XSLT, XML, HTML, IIS, ASP, Java, Microsoft Transaction Server (MTS), DCOM, COM, Visual Basic 6 (VB6)


1996 - 1997
  • Developed setup applications for PowerCerv’s main product lines (PowerTOOL 5.0, PADLock 5.0, PCAdmin 5.0) using InstallShield.
Technologies: InstallShield, PowerBuilder


1996 - 1996
Consultants in Computer Software
  • Developed for a packaging management system using Microsoft Access 2.0.
Technologies: Microsoft


1995 - 1996
  • Developed for an order placement system used in the Schwan’s call center as well as a commission calculation system.
Technologies: Microsoft Access, Microsoft SQL Server, IBM Db2, ODBC, Visual Basic

Programmer/Analyst Intern

1994 - 1995
BlueCross BlueShield of North Dakota
  • Developed for Medicare Part B claims processing.
Technologies: CICS, JCL, IBM Db2, COBOL, ISPF, TSO

WestLaw Next
I helped build this webssite in 2008-2010 as part of the Document Display team, and am currently helping add additional content to it.

Best Buy TradeIn
I helped build a lot of the backend code for this website using ASP.NET MVC 4, C#, SQL Server 2008, Stored Procedures, PowerShell, SpecFlow, Microsoft Unity, and MSTest. I created the initial threat model and helped run static analysis code scans using Veracode.


C#, JavaScript, TypeScript, XSLT, HTML5, XML, Visual Basic 6 (VB6), Java, HTML, VBScript, SQL, PowerBuilder, Visual Basic, COBOL, CICS, T-SQL (Transact-SQL), CSS


React, Web API, Backbone.js, ActiveRecord, Sinon.JS, Chai, ODBC, React Redux, jQuery, Node.js


Jasmine, Windows PowerShell, NUnit, ASP.NET MVC, ASP.NET Web API, .NET, ASP.NET, Angular, AngularJS, .NET 4, Jest, Windows Communication Framework (WCF), ASMX, NHibernate, ADO.NET, ASP, Express.js


Microsoft Visual Studio, GitHub, Git, TFS, Karma, Bitbucket, Visual Studio 2012, MSTest, Visual Studio 2010, Castle Windsor, Visual Studio, IBM Security AppScan, NMap, Visual Studio 2015, Visual Studio 2008, Microsoft Transaction Server (MTS), Visual SourceSafe, InstallShield, Microsoft Access, ISPF, JCL, Subversion (SVN), Notepad++, WebStorm


Object-oriented Programming (OOP), Test-driven Development (TDD), Service-oriented Architecture (SOA), Agile Software Development, REST


Windows Server, Windows, Visual Studio Code (VS Code), Burp Suite, Kali Linux, Microsoft


Microsoft SQL Server, SQL Server Management Studio, SQL Server 2005, SQL Server 2000, IBM Db2


Ajax, IIS, Visual Studio 2005, SOAP, Web Services, COM, DCOM, TSO, Internet Information Services (IIS)

1991 - 1995

Bachelor of Science Degree in Computer Information Systems

Minnesota State University - Moorhead - Moorhead, MN


Certified Ethical Hacker V7