Justin Carboneau
Happiness Engineer

I help companies turn their website visitors into happy customers.

WHAT I DO: I help organizations optimize their websites to increase engagement and conversions.

HOW I DO IT: A focus on customer happiness 😁 and an iterative, data-driven approach.

WHY IT WORKS: Every part of your customer's journey can be optimized. These incremental optimizations add up to happier customers, and more of them!


I've received over 30 recommendations on LinkedIn from happy clients and colleagues.

Contact me for a Free Consultation

Justin is a highly talented web developer, with a problem solving mind, and was able to successfully support Alter Eco's web development needs on a monthly basis for a few years. I've always appreciated Justin's dedication and his capacity to tackle any issues until resolution. I highly recommend his services.

Antoine Ambert
Director of Marketing & Innovation at Alter Eco

Experience with a wide variety of clients

I've worked with dozens of clients and on hundreds of websites over my 15-year career - from small local businesses to Silicon Valley startups and corporations:

Justin does amazing work as a front-end developer in addition to project management and architecture. He always went above and beyond for us at Intuit and questioned the "why" behind stuff so he could offer better solutions. I would recommend you work with Justin if you get a chance.

Joe Preston
Design Director, QuickBooks Online at Intuit

What to expect if you work with me

A partner who wants you to succeed

I will take the time to get to know your business, learn your goals, and collaborate with you to find the best (and most cost-effective) solutions to each problem.

I will also make sure we have the right analytics and feedback systems in place, to make sure we can make data-informed decisions.

Contact me for a Free Consultation

Justin has that rare combination of technical, project management and client skills that make working with him not only rewarding but a pleasant experience as well. He approached every project as if it was his own, with a level of dedication that made him a crucial part of the team. If given the opportunity, I would work with Justin again in a heartbeat.

Dmitry Paperny
Founder and Creative Director at Cohere Studio

Excellent communication

Communication is absolutely the most important part of our work together. I am very deliberate about communicating with my clients. I will always respond within 1 business day - usually much sooner - and I keep our communications organized by using the appropriate channel:

Justin was a pleasure to work with, both as a developer and a manager. Over two years, we were able to rely on him to tackle a variety of front-end site improvements and server configuration issues. Justin is punctual, meticulous, and super easy to communicate with over phone—a big win for anybody who has sought outsourced development.

Gavin Platt
VP, Design at Lucid

Free consultation

Get in touch and we can schedule a phone call or video conference. I'd be happy to answer any questions you have.

Justin lives in Durham, North Carolina with his wife and 2 daughters. In addition to web development, he loves personal development and Lego development. His favorite way to engineer happiness is by making his friends and family a fine cocktail.

P.S. I'm also a Senior WordPress Engineer at Toptal