Toronto · Working with teams worldwide
About EssDeeJay
EssDeeJay (The SJ Development) is a Toronto development agency with deep Shopify expertise. We also build Webflow websites, mobile applications and custom software, with focused scope and quick turnaround.
EssDeeJay is the name used on this website for The SJ Development Inc. Our work connects storefronts, business websites and software with the people who use and maintain them.
What we work on
Shopify is our core expertise: themes, apps, performance, integrations and commerce workflows. We also build Webflow websites, mobile applications and custom business software.
We begin with the business goal, the current system and the constraints. Scope, delivery dates and pricing are confirmed for each project.
Explore our servicesEvaluate the work
Our project pages include website galleries, platform context and project credits where available. They help you assess the type of work relevant to your own brief.
Website observations and illustrative examples are distinct from measured project outcomes. We do not treat another project's results as a forecast for your business.
Browse client projectsOur editorial approach
Our engineering and strategy guides explain practical decisions about commerce, websites and discovery. The team byline identifies the organization responsible for the article.
Sources beside the claims
Platform-specific claims link to official documentation or release notes. Our recommended workflows and illustrative examples are identified in the text.
Dates that reflect the content
Articles show publication and modification dates. We update the modification date when the content changes, including corrections to platform guidance.
Evidence over promises
We explain constraints and verification steps. Search rankings, assistant recommendations and conversion improvements are not guaranteed by a checklist or implementation.
Corrections are welcome
If a platform change or factual issue affects a guide, send the article URL and supporting source through our contact page so it can be reviewed.
Bring us a concrete problem.
Share the current website, what needs to change, the systems involved and your timeline. We can use that context to define an appropriate first step.
Discuss your project