Boutique backend consultancy

Greenfield backend software, shipped fast.

Aetherisys is a small, senior team that builds data platforms, APIs and cloud infrastructure for companies that need to move now — extra engineering capacity, without the overhead of big consulting.

We embed alongside your engineers, take a greenfield problem from an empty repository to running in production, and hand back something your team can own and extend.

Why teams bring us in

Senior-only team

Every line written or reviewed by experienced engineers.

Embedded, not arm's-length

We work inside your repository and your standup.

Production from day one

Infrastructure-as-code and CI from the first commit.

You own everything

We hand back code your team can read, run and extend.

What we build

Deep backend expertise across the stack that matters.

Most engagements draw on more than one of these areas: a data platform needs an API, an API needs infrastructure, a model needs a pipeline to feed it. We work across all four so the seams between them are designed, not discovered in production.

How we work

A short, predictable path from empty repo to production.

  1. 01

    Scope, honestly

    We dig into the problem and tell you straight whether we are the right fit — what the work involves, and how fast it could be in production.

  2. 02

    Embed and build

    We join your team and ship working software in short, visible increments. No big-bang reveals, no surprises at the end.

  3. 03

    Harden for production

    Tests, observability and infrastructure-as-code so what we build survives contact with real data and real users.

  4. 04

    Hand over cleanly

    You get documented code your team owns and understands — not a standing dependency on us.

Our standard

Built to a standard, not just a deadline.

Shipping fast only counts if what ships keeps working. Every engagement holds to the same engineering bar — the unglamorous parts that decide whether software survives its first month in production.

  • Infrastructure defined in version control, from the first commit
  • Tested transformations and explicit data contracts
  • Services with the logs, metrics and docs to be genuinely operable
  • Reproducible model training and monitoring for drift
  • Clear boundaries your team can extend long after we hand over
  • AI-assisted delivery with a human reviewing every line

No slideshows. Real results.

Got a greenfield project and a deadline? We embed with your team, ship working software, and hand back something you can own and extend.

Tell us what you are trying to build and where it is stuck. We will be honest about whether we are the right fit, what the work would involve, and how quickly it could be in production — before anyone signs anything.