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. No long ramp-up, no layers of account management — just experienced people writing and reviewing every line.

Get in touch How we work

What we build

Deep backend expertise across the stack that matters — delivered by senior engineers, with AI-assisted workflows and a human in the loop on every line.

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.

Data Engineering

Pipelines, warehouses and the plumbing that makes data trustworthy — built to scale and built to last. We design for correctness first: tested transformations, explicit data contracts, and observability so you know the moment something drifts rather than the week after.

Data Science & ML

Models and analytics that answer real questions and ship to production — not just notebooks. We handle the unglamorous parts — reproducible training, serving, monitoring for drift — so a promising result survives contact with real data and real users.

APIs & Microservices

Well-designed services your team can extend and operate long after we have handed them over. Clear contracts, sensible boundaries, and the logs, metrics and documentation that make a service genuinely operable — not just functional on the day it ships.

Cloud & Infrastructure

Cloud architecture and infrastructure-as-code: reproducible, observable and fully yours. Every environment is defined in version control, so what runs in production is something you can read, review and rebuild — never a configuration nobody remembers making.

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.

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