Zen Cart custom software development, Zen Cart modules, Zen Cart Expert eCommerce Starts Here!

About That Software Guy

That Software Guy helps small businesses sell online!

My name is Scott C. Wilson and I'm That Software Guy. I have over 25 years of experience in software development, and I am passionate about helping you convert visitors into customers and browsers into buyers. Let me help you increase sales and profits in your store. I appreciate your visit to my site, and I hope to hear from you soon.

Here are some things new customers like to see:
   Reviews and Testimonials from happy clients.
   Pricing - a bit about how I work with clients.
   Experience Summary - my background.
   Contact Information - Email is best.
   FAQ - Common Questions about How I Work.

Payment Information

Payment and donation processing through PayPal.
Visa, Mastercard and PayPal accepted.

If you don't like PayPal, you can send me money in the following ways:
  • By Zelle to help@thatsoftwareguy.com
  • By Venmo to ThatSoftwareGuy
  • By PopMoney to help@thatsoftwareguy.com
  • By credit card payment via the BrainTree payment gateway in my store, upon request.


Forums are free, but if you contact me directly to work on a problem you're having, please be prepared to pay.

Extensions are priced as indicated on the help page for the extension. Custom programming services available at $100 per hour for jobs requiring more than 10 hours; jobs requiring less than that have flat per-job pricing or are billed at a slightly higher hourly rate. Payment is required in advance. Typically I can provide a fixed price bid for projects which are well defined and require ten hours of work or less. Larger projects, projects with significant unknowns and exploratory projects will be billed on an hourly basis with a ten hour deposit. Refunds will be made for unused hours.

I generally don't debug code written by other people; I take your specifications and apply them to a vanilla copy of the latest release.

Installation is available for most of my Zen Cart modules for $60.

Telephone consultations are $100 for up to one half hour, payable in advance. You must have a current, working cart installed on the public Internet that both of us can access. Consultations typically occur in the evenings or on weekends; scheduling will be done as soon as payment is received.

I'm always happy to look at RFPs and RFQs by email. Click my contact page for information on what I need to get started.

Finally, if you'd like to make a donation to show your appreciation for my contributions to Zen Cart, osCommerce, or OpenCart, that would be great! Thank you!

Module prices are firm as posted and as quoted. To be fair to all customers, I have a no-discounting policy. The money you are paying for extensions and custom development also supports the free software I provide.

People trying to hire computer-related services on the Internet frequently confuse price, cost and value. I am not the lowest price bidder. My prices are based on the value I bring to the table. If you are selecting on the basis of price alone, I encourage you to contact my competitors, whose lower levels of skill and experience force them to charge lower rates.


That Software Guy, Inc. is a microconsultancy. I place intentional limits on the amount of time I put into it. The scope of services I offer is narrow in focus. It is not a vertically integrated business - I don't do hosting, for example, or template design. For the most part, what I do is custom software development - based on your personal needs, tailored to your personal specifications.

I can only handle a certain number of clients at a time. If you need your changes right away, I may not be able to take on your project. Please don't be offended. To be fair to everyone, I handle client requests on a first paid, first served basis.

At any given time, I may be delivering the next week, or I may be delivering several weeks out. The latter means I have a backlog of client requests. Rest assured that when your turn comes, I'll give your project the same attention and care I'm giving to someone else's project right now.

If am unable to take on your job at this time, I may forward it to someone else who is capable of handling the work. If you would prefer that I not forward your current proposal, please include that preference in your request.

Try it Out!

Many of my mods are installed on the demo sites I maintain. Take a look at Demo Shop 1, Demo Shop 2, Demo Shop 3, Demo Shop 5. I also have a shop to show of some admin mods; the address is Demo Shop 4. Use userid "test" password "test" to login.

You can see all my demo sites on one page on That Software Guy's demo site.


When I give you a delivery date for a change, this reflects my worst-case estimate of how long it will take. I generally promise next-week delivery, unless I'm really backlogged. I may wind up delivering sooner, perhaps much sooner, but in no event (the good Lord willing and the creek don't rise) will it be any later. I would much prefer to deliver early and be a hero than deliver late and be a goat.

For a long time, I would deliver software by email, but in April 2014, I decided I need to eat my own dogfood, so I switched over to use a Zen Cart-based shopping cart (Visit That Software Guy's Store). Buyers of modules receive immediate downloads of a zip file containing code and installation instructions. If you require installation assistance, I am happy to provide it for an additional charge. If you have questions, please ask them prior to purchase.


I require payment in full prior to commencement of work. You can just buy any amount of time needed from my store.


You can see some testimonials and reviews about my Zen Cart work on ShopperApproved and elsewhere. If you have a LinkedIn account, you can look at That Software Guy's LinkedIn page to see more testimonials.

Contributions to Zen Cart

Does it make sense to hire a Zen Cart developer who has never produced a significant contribution to the project? My Quantity Discounts and Better Together modules are my own original works that have been each been downloaded over 20,000 times. You can see the stats on all my mods to see how popular my work is; my contributions have been downloaded over 150,000 times as of January, 2017.

In addition, I am one of the top contributors to the Zen Cart core.

I have also made contributions to osCommerce, OpenCart, and PrestaShop.

Follow My Work

A number of options are available to allow you to follow That Software Guy's work.

Experience Summary

I maintain two online resumes; you may view That Software Guy's Resume on Stack Overflow Careers, or That Software Guy's Profile on LinkedIn. You may also read my origin story if that is of interest.

Contact Information

I'm always happy to hear from clients and prospective clients. Please just remember that this is a business, not a free helpline. If you contact me, please be prepared to pay.

Contact by email preferred. Just use my contact form.
  • Cart type (Zen Cart, osCommerce, etc.)
  • Cart version
  • Mods installed
  • URL to your store
  • Your specific requirements
  • Budget
  • Schedule

Social Networking

If you use and enjoy the work I've done, connect with me!

   Find That Software Guy on Facebook

   Follow That Software Guy on Twitter

   View my Profile on LinkedIn. Please introduce yourself to connect!

   I also enjoy answering questions on the Stack Exchange network, on StackOverflow, Programmers, and SuperUser .

Here's my network flair:

profile for Scott on Stack Exchange, a network of free, community-driven Q&A sites