Full Stack Developers
Versatile engineers who move across the stack to ship features end-to-end.

A senior-led eCommerce consulting & custom software firm — delivering enterprise software across North America since 2015.
Work with usOur Story
Kalkül builds enterprise software across North America. For 10+ years we have partnered with retail and enterprise leaders — taking them from strategy and architecture through engineering and long-term support.
We're an eCommerce consulting and custom software firm that becomes part of your team — guiding build-vs-buy decisions, challenging vendor assumptions, and delivering with an agentic, senior-led SDLC.
e-commerce. software. delivered.
Global delivery from the US & India (Bangalore)
Burst capacity secured offshore
Senior-led on every engagement
Strategy → Architecture → Engineering → Support
Ryan Mulloy, Head of Design, Partner
Ryan is an agency veteran responsible for building some of today's most notable brands – from Dunkin and CAVA to Fidelity and Biogen.
His ability to bring the “voice of the customer” deep within the businesses we work with makes him an invaluable partner in inventing the future.

Joseph Bassil, Founder & Full Stack Enterprise Architect
Joseph is a full stack Enterprise Architect and the founder of Kalkül Technology Group, Inc., with a passion for software development and building scalable systems.
His hands-on capabilities have been supercharged with the help of LLMs and an Agentic SDLC — pairing deep architectural experience with modern AI-accelerated delivery.

Kalkül is 20+ engineers and architects led by principals with 20+ years each of industry experience. From Halifax and Bangalore, we field balanced, senior-led teams across every discipline needed to deliver enterprise software end-to-end.
Versatile engineers who move across the stack to ship features end-to-end.
Building the APIs, services and scalable systems that power enterprise commerce.
Crafting fast, accessible interfaces that bring the customer experience to life.
Keeping delivery on track and stakeholders aligned across every engagement.
Translating business goals into clear, actionable requirements for the team.
Safeguarding quality with thorough testing across releases and integrations.
