Founding Engineer

Dex

Greater London

Hybrid

GBP 90,000 - 180,000

Full time

14 days+

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Job summary

Dex is looking for a founding engineer in London to join early and shape the product from architecture to shipping, owning core domains and influencing engineering culture. You will be among the first engineers, building the product alongside founders, with equity that matters.

Expect a fast-paced, multi-hat role where you drive architecture and standards from day one, in a London on-site/hybrid setup. Salary ranges from £90k to £180k plus meaningful equity.

Qualifications

Strong generalist engineering and a builder's instinct.
Comfort with ambiguity and an early-stage pace.
The appetite for the whole problem, not a slice of it.
Prior founding or early-startup experience — a bonus, not a requirement.

Responsibilities

Build the product from the ground up with the founders, owning architecture to shipping.
Own entire domains end-to-end, from architecture through to ship.
Set engineering culture and standards from day one.
Wear multiple hats as the week requires and shape what gets built.

Skills

Generalist engineering

Builder's instinct

Ambiguity tolerance

Early-stage startup experience

Job description

Founding Engineer (London Startups | £100k–£200k + meaningful equity)

London (on-site / hybrid)

Location: London (on-site / hybrid)

The opportunities

Salaries run £90k–£180k with equity that's meant to matter — this is where the upside can dwarf the base. You'd be one of the first engineers in the building, owning whole domains from architecture to ship and setting the engineering culture alongside the founders. The pace is exactly what you'd expect this early. The ceiling is the point.

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