About Cubelenz

An engineering partner for teams building serious software.

We work with founders, CTOs and product leaders on the systems they can't afford to get wrong — products, AI platforms, cloud foundations and the security work underneath all of it.

Mission

To be the engineering team that ambitious organisations bring in when the work is non-trivial — and to leave behind systems, code and habits that make them stronger long after we're gone.

Vision

A world where software is built with the care, rigor and craft of any other piece of critical infrastructure — secure, observable, accessible and humane by default.

How we think

Principles we don't bend.

Honesty over hype

If a project isn't a fit, we say so. If a timeline is unrealistic, we push back. Trust is the only thing we sell.

Engineering, not assembly

We don't glue templates. We design systems — modeling domains, drawing diagrams, weighing trade-offs.

Security and quality by default

Threat modeling, type safety, accessibility and observability are part of the definition of done.

Long-term partnership

We optimise for the second engagement, not the first invoice. Code we wouldn't want to inherit doesn't ship.

How we work

Rituals that make the work hold up.

Culture is what you actually do every day, not what you put on the careers page. These are ours.

Code review on every PR

Two-eyes-minimum, with explicit checks for security, performance and clarity.

Architecture Decision Records

Significant choices documented in the repo so future you understands why, not just what.

Definition of done

Tests, telemetry, accessibility and docs aren't optional — they're how we know a feature is finished.

Blameless postmortems

When something breaks, we learn loudly. The root cause is always a system, never a person.

Engineering culture

We hire for taste, judgement and ownership.

Our engineers are senior, opinionated and curious. They read other people's code carefully, ask the harder question in the design review, and own the thing they shipped — including the on-call page at 3am.

Avg engineer tenure
8+ yrs
Senior+ engineers
100%
Hire rate
< 2%
Globally distributed
EU · UK · NA
Work with us

If the work is hard, that's usually a good sign.

Bring us the engineering problem you're losing sleep over. We'll read it, argue about it internally, and come back with a real answer.