Mat Mullen

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  • Shopify Expert since 05/2013
  • Projects starting at $1,500


About Mat Mullen

*Top Rated Expert in California*

Reliable and friendly Shopify designer and developer based in San Francisco. I've worked on over 100 Shopify stores over the past five years and can help you launch your business or make changes to your site.



Based in San Francisco, I’ve been designing Shopify stores for the past four years and have plenty of experience working with small businesses that need help setting up their store. I've worked with brands like Pinterest, Dropbox, Airbnb, Lyft, and AOL help build online stores that help represent their brands.

• Design Consultation Detailing Goals & Requirements
• Retina Ready and Responsive Custom Shopify Theme Design and Build
• Shopify Setup
• Theme Customization
• App Setup and Installation
• Post Launch Support
• Help with General Shopify Usability Issues
• Multi-National and Multi-Language site setup and support (see as an example)

Checkout some of my recent work below to get an idea of the types of sites I can help create for your store.


Starter Package: $800

This includes a basic setup of your new store along to get you launched on time. Basic customization is included along with tutorial on how to update your site.

Advanced & Custom Store Design – Starting at $2,500

Need a highly customized design and advanced features? No Problem. Custom Features for Past Projects Include:

- Ability to lock or hide certain pages or sections of a store
- Custom Instagram & Pinterest integrations.
- Include custom details for a product such as delivery date, monogram and custom details.
- Wholesale product pages.
- Video integration into a homepage slider.
- Quickbooks integration.
- Drop shipment solutions.

79 Testimonials

Cheese Plus

Fantastic experience working with Mat!
Prompt communication, excellent followthrough – and in the end a gorgeous site for our store. We’ve already begun lining up new projects and are (naturally) partnering with Mat.

Bezier Games

Mat's proposal for our website redesign stood out from the others, but it wasn't until we actually started our project did I realize that they were actually very different than the other vendors we had worked with before. The professionals at MEM Creative make your organization's problems their own, and care as much about your project's success as you do. They act as an extension of your organization, and our digital presence is stronger today because of their care, diligence, and creative problem solving.

The Stinking Rose

Mat did a fantastic job taking our Sketch file and turning it into a fantastic looking e-commerce store. We need a lot of help getting it up and running and Mat assisted us the entire time. We've gone from selling nothing online to a having a full blown online business in the past few months.

We highly recommend Mat!

Humboldt Clothing

Mat was able to do exactly what I was looking for, and he charged me a tenth of what I was quoted through some other people. He is very knowledgable about setting up a shopify site, and I would highly recommend him to anyone looking to sell online using shopify.

Stick & Ball

Mat is quick and knowledgeable of the Shopify platform. He is our goto Shopify guru.

Shomei Organic Skincare

Mat’s work on our new online store truly exceeded our expectations. He wass efficient, experienced, and a pleasure to work with in terms of communication and collaboration. The project was managed on time, and we received a world-class ecommerce website that has already led to increased sales and conversions.

All Birds

Mat knocked out a quick project for us in a crunch. We'll definitely be using him again for upcoming projects!


The work that Mat has done for us, has helped our business grow significantly. On top of providing top notch work, he' timely in communication, responsiveness, and customer service. We continue to work with him, and will continue to do so in the future!

Edit Fruit Juice

Mat is an exceptional talent! We found him excellent in the development of our Shopify platform.

Eero Dev

Working with Mat was fantastic! He provided timely, thorough and responsive support. The end site looks great. He also really helped use troubleshoot - I couldn't do exactly what I wanted to do with the existing themes / apps, and he took a lot of initiative to help me figure out how best to achieve my objective within the budget we had.

Betts Fit

Mat is honest, talented, and gets his work completed in a timely manner. Words can not express how thankful I am for the work he has done for me. He truly should charge double his rate and I will forever work with Mat as long as he is doing web design & development.

Hygge & West

The best and most professional developer I have ever worked with. Trust me, I've worked with so many developers in the past 11 years of being in the web space and Mat easily falls in to the top 3. I'll give you several reasons why:

1) Professional and does not pad hours, I paid under the estimate
2) Friendly, I actually consider them my friends now
3) Works fast
4) Good programmer with modern day philosophy and knowledge

If you're contemplating hiring them, stop contemplating, you should have hired him yesterday!

Pure Storage Company Store

We worked with Mat and he was fantastic! Very responsive, knowledgeable and helpful, his work is beautiful and exactly what I wanted. I was surprised with how quickly the work was completed, it was such a great experience and we will definitely be contacting him for future updates. 100% recommend!!

Kinzig Design Studios

Working with Mat exceeded our expectations. It's difficult to find a designer who excels on delivery time, design and communication skills. I've had two designers move onto full-time employment which left me stuck and starting back at zero. I'm actually grateful for that now. I will continue to consult Mat on all on-going edits and projects.

Treats Quality Apparel Inc

Mat is both deeply knowledgeable about Shopify and easy to work with. I couldn't recommend him more highly.

Monkeypod Jam

Very professional, works quickly, great price.


Mat was amazing. He's is with you 100 percent of the way. We provided him with a pretty custom design that required a lot of customization and Mat did a great job putting it all together. He turned around the site in a pretty short amount of time and did a great job keeping me updated along the way.

We will definitely be working with him again in the future.


Great to work with! Mat handled the facelift of our website and did a great job. He was very communicative throughout and he left us with good knowledge of how to continue to make changes in the future when needed. We highly recommend Mat!

Haakinson V

Great experience! Mat worked with me to design and develop a new site from scratch. He coached me on how to update the site and helped get it launched. He was quick to respond and did a great job with the site.

See.Saw.Seen Eyewear

Mat was very insightful and attentive. He has a very high knowledge on Shopify language and I will use him again. Five stars for me for sure!

Giant Bomb Emporium

The best way we describe Mat is in one word, "Game Changer". He is are extremely knowledgable in the E-Commerce industry and have helped take our business to the next level. He turned around our site in under a month and it looks fantastic.

Thank you!!!

Raking Light Projects

Mat helped us set up our store from design, development and product setup. They guided us every step of the way and are experts at Shopify and the platform. He is a pleasure to work with and we look forward to future growth and projects with him.

McCall Events, Inc

Our website speaks for itself - Mat did an amazing job. In terms of helping out a new brand, Mat's experience with brand positioning, concept, and social media marketing was top notch. Without his advice and guidance, our event would not have had the the success we had.

Paleo Baking Company

If you are looking for a team to help bring your brand image to life, definitely contact Mat. He was awesome to work with, taking marketing concepts and bringing them to life for both online and with digital marketing pieces. I am very happy with his results and look forward to working with him again.

Stick & Ball

Excellent excellent , I cannot rave enough about the service I received, my website looks wonderful and every time I have a question its answered right away! I highly recommend their services and I will be a long time customer!

MARGE Clothing

Mat was an absolute pleasure to work with. He met our expectations and worked through our ongoing needs as they changed. I would highly recommend his services.

Artisan Connect

Mat was fantastic! He listened carefully to what we wanted, and came up with numerous custom design elements to get to the end result that we were looking for. I'm very happy with the work Mat did for us and I would highly recommend him to others.

Beyond Trademarks

Mat has been incredible. From the very beginning I felt comfortable in his pricing and support as he developed a web store that exceeded my expectations in every single way. I certainly recommend him for any and all branding, development and design services. Their support, pricing and project outcome is unmatched with respect to my experience with other companies!!

SUP Shop

I would recommend Mat in a heartbeat, they have been a pleasure to work with. Very responsive from the second I reached out to them, it was fairly simple to explain what changes I wanted and they had great solutions.

The quote was straight forward and fair and they stayed within the boundaries of what was agreed in terms of timeline and budget. Communication was quick and easy at all times. A big thanks to Mat!

The Country of California

There are web development teams, and then there is Mat.

Not only is he top notch when it comes to building a beautiful Shopify site, he understands business and takes they time to understand your goals and industry to give you the best possible product.

He's quick, professional and supported our team from design to marketing, to guide you through from concept to site launch.

I HIGHLY recommend Mat if you are looking for an eCommerce partner to help you build your presence online with Shopify!

Colonial Arts

Extremely happy with Mat's work, he went "above and beyond". The drive and the desire to develop something special is evident from day one and continues throughout. Technical abilities are top notch yet exceeded by the direction, knowledge and experience shared to help me optimize my results.

Sara Melissa Designs

Such a smooth easy process from start to finish. We enjoyed working with Mat and highly recommend him.

Pipeline Gallery

Selecting MEM Design was the best business decision I made in starting our online retail company. We received a professional site for a great rate. Mat was instrumental in all phases of design; from concept to delivery they have gone beyond our expectations.

Cheese Plus

We came to Mat looking for help building our first online store after mainly dealing in just retail for a few years. He helped customize the design we had and did a great job helping us understand how to run our store once his work was done.

His proposal and work was reasonable and delivered on what he promised.

Cork Off

Mat did a great job building our site from scratch. We met in person before the project and helped us come up with a site that worked for the business we started a few months ago. Highly recommend his services and look forward to working with him again in the future.

Tempest + Bentley

Mat has gone above and beyond to ensure that my site,, looks and works the way I need it to. He's a problem solver and doesn't give up when it comes to finding solutions for complex custom work. Mat is a great communicator and worked extremely well with both my designer and I in the creation of the site. Mat is a pleasure to work with, a total professional that is efficient with his time. He's given me great direction and advice in areas of the build that I've had questions about. I've been working with Mat for over a year now, and I'll continue to work with him as I make upgrades and changes to my site, as my business evolves and grows. I've also recommended Mat to other businesses looking to build a Shopify site.

Campus Khakis

Mat has helped us with our store over the past year and a half and his service as been great. Highly recommend him for future stores looking to build on Shopify.


We used Mat because he was a local Bay Area designer/developer and were really happy with his services. He helped us not only build our site, but helped tons of questions along the way about the best apps to use and taught our whole company how to update the store.

Make & Stow

Working with Mat was an amazing and refreshing experience. He happily pulled off every crazy request I made, and did so with lighting speed. I've grown to expect web developers to take a great deal of time to complete requests and follow through on promises, but my experience with Mat was exactly the opposite. He did everything he could to help us make sure our site launched on time, and was extremely communicative and helpful throughout the entire process. After all of the additional work and customizations I requested, I was blown away at how low he kept his costs, barely exceeding his original quote for the project. He even set me up with the capability of updating my site any time in the future by providing me with comprehensive instructors. I look forward to hiring Mat to work on my next project.

White Label Juice Co

We came to Mat with a difficult task in launching a new custom store in under a week. He delivered a site that's easy for us to update and allows us to continue to sell online. He helped us in a pinch and was super helpful along the way.


We worked with Mat to build our first e-commerce site and couldn't be happier with the result. We had already worked with a design firm for the layouts and design and then he took those designs and turned our vision into reality.

He was easy to to work with and he took the time to show us how we could update the site in the future. Really happy with the outcome and happy we decided to go with Mat!

Blackwell's Wines & Spirits

Mat helped us launch our first venture into e-commerce and was able to walk us through each step of the process. He met with us in person and helped teach us how to update our site as well as some tips on email marketing and inventory management.

Secret Keys Unlocked

Mat did an excellent job with my site. I'm new to Shopify and he helped answer all my questions and quickly turned around a good looking site at a reasonable price.

The BROpener: Turn anything into a bottle opener!

We had a successful Kickstarter project and were looking to redo our website post-launch. Mat worked with us to come up with a few ideas to improve the basic visuals of our site and now it's looking great. Highly recommend his services.

Apricot Lane Boutique

We found Mat through the Shopify Experts directory and he was fantastic! He helped move us over from Wix on to Shopify and had some great marketing advice for increasing sales. We're not based in San Francisco, but he was easy to talk with on the phone and did a great job launching our new site!

Oakville Grocery

Mat exceeded our expectations with our new Oakville Grocery website. We interviewed a few different experts from the Bay Area and Mat was by far the most knowledgeable about Shopify and had some pretty creative solutions for our site requirements.


Mat does great work, in a timely manner and with great communication. We love working with Mat!

The Finest Watches

Mat did excellent work for us. We had a fairly complex setup, and Mat took the extra time to make sure our needs were met. Work was completed thoroughly, and in a quick turnaround time. We have no hesitation in recommending Mat for other jobs and using his services again.

Threadcount Bedding Design

Mat is awesome! He is an amazing listener, caring and excellent web designer! I would highly, highly recommend me for your shopify store. He is the best.

Heritage Row

We hired Mat to help us figure out how to build a new online store based off our existing brick & mortar store in SF. We were admittedly lost and pretty confused, but luckily Mat knows a ton about Shopify and built us an amazing store and took the time to teach us how run our business online.

We highly recommend Mat!!

Taste Trunk - Premium Gourmet Gifts and Subscriptions.

Complex job was done quickly and the communication was great. Thanks for the help!

Verve Coffee Roasters

Mat did a fantastic job building a custom product page as well as a custom Instagram look book to feature photos of our trips to South America. His prices were reasonable and he did an excellent job at teaching our staff how to update the store ourselves.

The work was completed quickly, and Mat knows more about Shopify then anyone we've worked with!

Zingara Jewelry by Jennifer Still

I highly recommend Mat. He was responsive, has extensive expertise, is easy to work with and met all of my needs. He is also very reasonably priced. He helped me create a beautiful Shopify store. Mat made the experience very enjoyable and easy to understand.

The Moon

Mat did a wonderful job helping our design studio think through our design skins. Once we worked through our concepts he did a great job bringing our design concepts into reality with well coded pages. He really knows his way around Shopify.

What makes Mat so great to work with is that he is a great listener and very thoughtful in his approach. We have since hired him on another project for our clients. He is a great partner for any design studio.

Puj | Simplifying Parenthood

Mat has been helping us build custom sections of our site for the past year. He's been prompt, professional and has come up with some really unique solutions ideas we wanted to bring to life at PUJ.

We most recently built an entire Pinterest powered contest called Puj Approved that helped drive tons of traffic to our site. A+ and will continue to work with him in the future.

Mat was a lifesaver with my clothing site. He helped me decide on a theme and then did a great job customizing it and explaining how to make changes myself.

I couldn't be happier with the final result and I'm really happy with how things worked out. He was very easy to work with and worked within my budget.

Parker Dusseau

I hired Mat because I needed some advice on how to build out a promo code and ambassador system for my site. He immediately went to work and had a couple of excellent ideas that helped grow my customer base.

He was quick, responsive and did excellent work. Highly recommend him for anyone looking for a Shopify Expert.

Volochem Inc

Mat did a fantastic job with my website. He was quick to respond and helped with the design, development and launch of the store. I talked with a few other experts in the Bay Area, but no one was as professional and dependable as Mat.

I highly recommend him for any Shopify work you might need.

Oru Kayak

MEM (Mat) was great! He worked with us and helped me to make a major change on the website in the middle of a very busy week! His work was quick and clean. He also responds in a very timely manner.

We had record sales in July and Mat's hard work was a big part of that.

Atomic Garden

Mat did a fantastic job helping us out in a bind. He was very patient and took the time to meet in person out in Oakland and helped us optimize our site to boost sales during the busy holiday season. I've had bad experiences with other "experts" in the past, but I'd highly recommend Mat to anyone in San Francisco or the surrounding Bay Area!


Thanks for a great experience, Mat! Really quick turnaround, quality work, and easy to understand tutorials.


We worked with Mat to produce a highly custom site that had a tight budget and even tighter deadline. He delivered on time and the site looks fantastic.

Home Habbits

I'm moving away from Wix over to Shopify and I was pretty confused with where to start with my new store. Mat gave some great suggestions on where to start and how to import my products over without any major issues. Looking forward to working with him again in the future!

Southern Belle Monograms

Thank you!

Threadcount Bedding Design

Mat is the absolute best! He is highly professional, patient and skilled. He also explains things in matter that is very easy to understand and is an excellent communicator. He is awesome!! I would highly, highly recommend him. Thanks, Mat!!

We Juice Well

Mat is easy to work with, responsive, professional and skilled. He worked with us to seamlessly implement a customized design of our store based on an existing theme, as well as setting up all of the overall store functionality. He made it easy to get our store up and running and I wouldn't hesitate to work with him again!

Tokens & Icons

Mat did an excellent job working with our design agency to build out a very custom store for us. We're a well established business that wanted to build an e-commerce store and Mat not only did the development work, he also provided us lots of great advice about best practices and apps to use.

I'd highly recommend Mat to any well established business that needs help getting their store designed, developed and launched in a timely and professional manner.

The Santa Barbara Company

Mat was a pleasure to work with. He was friendly, accessible and knowledgeable. Twenty minutes after messaging him, we were on the phone discussing the project and he completed the research quickly. We're looking forward to working with him on future projects!

McCall Events Inc

Mat was the best! I emailed a request for help, and he responded within an hour. I needed some small modifications to my shopping cart page, and also a few adjustments to the overall site template, and he did them quickly. A few emails and a phone call, and everything is completed flawlessly. I would highly recommend Mat to anyone looking to customize their Shopify site, and will be calling on him again for assistance.

Heritage Row

Mat was referred to me by a previous client - Viva Diva. I was told that he was AMAZING and beyond helpful. Well, he lived up to those standards. I was completely comfortable with him from our first phone conversation. Not only was his bid on timing, and pricing completely accurate, he was also prompt. He never made me feel like I was annoying him even though I had lists of questions. I would recommend Mat to anyone!

Hardhaus, Inc.

Mat did a great job helping me set up my storefront. Rather than setting up the site and leaving it to you to figure out how to manage it, Mat's approach is to show you how to do things step by step so eventually you learn how to use the site-builder tools yourself. Easy to work with and always very responsive.

SheaTruth Limited

Matt really knows his stuff. He quickly articulated the issues I had and came up with a simple, yet brilliant solution!

Wild Beautiful

From the first Mat did a great job! I've never hired anyone to build a website from scratch and from the first phone call Mat took the time to explain to me what to expect. He lived up to what he said he was going to do and was very responsive to my questions. I'd highly recommend Mat to anyone new to Shopify!


Mat did a great job on my site. He was responsive to requests and was resourceful in finding work- arounds for any problems or shopify limitations.

Site Line Video

Mat provided very expert service. He was easy to work with, and very responsive. I will continue to work with Mat on this and future projects. I would highly recommend Mat.

Young Timers Boutique

Was quick to respund! Was quick to understand! Was quick to do the job! And above all was a pleasure to deal with!

Boobypack | A Fanny Pack For Your Rack

I cannot say enough good things about Mat. In less than a week, he transformed my site and did what my previous developer couldn't do in 3 months. He's also a very patient teacher. I now feel like I can update and operate my Shopify site with ease even though for the most part I am technologically inept. If you need a quick, talented, extremely reliable developer- Mat is your man.

Hot Straw

Mat did a great job helping me design my site. He is very knowledgeable, does quality work and communicates well. I highly recommend him.

Viva Diva Boutique

Mat is awesome! Mat had great ideas to make our website,, look great and easy to use. Since we went live a year ago, Mat has continued to help us improve our site as we learned more about what was working for us. Also, Mat has always been patient and is able to explain things clearly, even to someone like me who isn't terribly tech-savvy. I would definitely recommend Mat!


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