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© 2026 EXTFOX
Senior product engineering partnerCommerce · AI · SaaS

About EXTFOX

We build what
growth depends on.

Senior engineers delivering Shopify Plus, AI, and SaaS systems for teams where execution carries real commercial weight.

Meet EXTFOX
01 / 04What we build

Three disciplines. One senior team.

Commerce, AI, and product engineering move as one. The same senior team takes every engagement from strategy through production and beyond.

Strategy to productionOne accountable teamSupport after launch
02 / 04How we work

The people scoping it are the people shipping it.

Clients work directly with the senior team making the decisions and shipping the system. Progress stays visible, ownership stays clear, and momentum stays high.

Dusan Jovanovski, Founder and CEO of EXTFOXDusan Jovanovski in the EXTFOX studio
Founder-led deliveryEst. 2016
01

Visible momentum

Working progress, decisions, and blockers stay visible throughout delivery.

02

Commercial clarity

Scope, investment, and milestones are aligned before the build.

03

Built to own

Your codebase, your infrastructure, and no lock-in.

03 / 04Why clients stay

No lock-in. 83% stay past 24 months.

Clients own the repository and infrastructure from day one. They stay because every release keeps moving the product forward, not because leaving is difficult.

01

Release

Production launch with documented ownership.

02

Support

Thirty days included after every project build.

03

Improve

The highest leverage changes move first.

04

Compound

The same senior team keeps the context.

83%

still active after 24 months

No minimum term
30

days of post-launch support included

04 / 04Who trusts us

Trusted with work that has to perform.

High growth commerce teams and global brands trust us with systems where speed, reliability, and performance are non-negotiable.

Clean Skin Club
The Honest Kitchenvia VML
Vodafone
SpareBank 1 SR-Bank
Smilepen
Biorenewal
Eddi
Balkonstrom
Yandyvia VML

Proof in production

Built to perform. Proven over time.

We track what matters after launch: products delivered, partnerships retained, and systems that keep earning investment.

80+

products delivered

Across commerce, AI, and SaaS.

20+

Shopify Plus builds

Storefronts and systems built for serious scale.

1,900+

experiments shipped

A/B and conversion work across high growth commerce.

Have something difficult in mind?