shopexperts score
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(Max 40)At a Glance
English
About
Fractional Engineering for Shopify Merchants
18+ Years Experience.
Short & Long Term Projects.
Delivered on Time & On Budget
Collaboration with founders, marketing or operators, and marketing agencies that need a reliable Shopify partner for development and engineering.
Recent work includes Shopify migrations, storefront optimization, and ongoing engineering support for brands such as:
Donald Ross Sportswear (WooCommerce → Shopify Plus migration, build and launch, ongoing customizations and app work supporting marketing and ad teams)
Jeff Dunham (WooCommerce → Shopify migration, build and launch, ongoing technical management)
Just Keep Livin’ by Matthew McConaughey (consulting, theme refresh, technical adjustments, and Giving Tuesday campaign support).
Faith Fight Finish by Dak Prescott (New Shopify Store build, launch, and ongoing support)
Work involves ongoing storefront optimization and technical implementation supporting growth teams and marketing initiatives.
shopexperts summary
Mike Brennan is a freelance Shopify Plus engineer focused on storefront engineering, performance optimization, cart and product-page improvements, integrations, and technical troubleshooting. He also offers WooCommerce-to-Shopify migrations, AI-ready product-data preparation, complete store builds, and ongoing or fractional engineering support. His profile presents him as a fit for growth-stage ecommerce brands, founders, operators, marketing teams, and agencies. Reviews describe clear communication, quick responses, prompt delivery, and carefully implemented work, while a client specifically highlights migration support and continued backend integration.
Contact
Mike Brennan's business address
260 E. Main Street Suite 6904 Rochester NY 14606
shopexperts Reviews
Summary of 4 client reviews
Across 4 client reviews, customers consistently praise Mike for clear communication, responsiveness, and the quality of his results. Reviewers also frequently highlight his efficient delivery, while one review specifically notes his technical implementation skills. The feedback presents Mike as a freelancer who communicates reliably, produces quality work, and completes projects promptly.
1-4 out of 4 reviews
This client was hired on shopexperts.
This review was requested by the expert.
Mike has carried out a number of jobs for us now and I can't recommend him highly enough. He understands the brief in detail, carries out the work promptly and to an exacting standard and communicates clearly and regularly throughout. We have found our go-to developer! Thank you Mike and team for the stellar work.
Thank you for the kind words. It has been a pleasure working with you and look forward to continuing to support anything you need.
This review was requested by the expert.
Mike and his team are truly the BEST. My husband and I have been working with him for many years, and he is always quick to respond, very professional, and provides exceptional results. We feel so lucky to have him on our team!
Thank you Audrey! It's a pleasure to work together.
This review was requested by the expert.
Mike assisted in our efforts to move over from WooCommerce to Shopify and continues to integrate the backend of our site, so users have a seamless experience for their shopping needs.
Much appreciated! Great working together.
This review was requested by the expert.
I have had the pleasure of working with Mike and his great team for over 5 yrs. He is quick to reply and always gives a really quick remedy. We have a great working relationship and would recommend his company to others.
Thank you Mariana!
Packaged Services
Case Studies
Just Keep Livin' - Storefront Optimization and Campaign Support
Oct 2025 – Feb 2026
WooCommerce → Shopify Migration and Technical Management
Jan 2024 – Mar 2026FAQ
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- Design, UX & Branding
- Shopify Development
- Store Setup & Management
- Consulting & Strategy
- Copywriting & Content
- Marketing & Growth
- AI & Emerging Tech
- Finance, Taxes & Compliance
- Operations, Logistics & Fulfillment
- Technical Support & Maintenance
- Training, Coaching & Support
- SEO (Search Engine Optimization)
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