01 / Cover sheet
Independent engineering consultancy
Rev B · 2026Cognitive Horizon / Engineering practice
Systems engineered
to specification.
Senior engineers for the parts that have to hold. We map the constraints, draw the architecture, and build software you can depend on in production.
Retrieve the right context, choose a model, and return an answer the product can use.
A bounded retry and an alternate model keep provider failures inside an explicit recovery path.
Trace the request across the system. Measure latency, retrieval quality, and failures at each boundary.
- Years in engineering
- 25+
- National competition finish
- #2 / 20,000
- Lines shipped
- 20M+
- Engagements
- 100+
02 / Practice
General arrangement
A — EFive disciplines.
One engineering standard.
From a single difficult subsystem to the architecture of the whole product. The right expertise, at the depth the problem needs.
AI / ML Engineering
Agents, retrieval, and evaluation systems designed for real product workflows.
Application Development
Web, mobile, desktop, and CLI. Built around the problem and the people using it.
Systems & Infrastructure
Services and distributed systems that hold up under load, contention, and failure.
Algorithm Design
Competition-grade rigour for graph, geometry, numerical, and search problems.
Consulting & Architecture
Technical audits, architecture reviews, and fractional CTO judgement.
03 / Method
Order of operations
From brief to handoverDrawn, then built.
A clear sequence, with something concrete to review at every stage.
-
Survey
We read your code, map the constraints, and identify the decisions that carry the most risk.
DeliverableConstraint & risk map -
Specify
Interfaces, data shapes, failure modes, and tradeoffs. A design you can challenge before implementation.
DeliverableArchitecture & scope -
Build
Working increments, meaningful tests, and explicit decisions. Progress you can inspect as it happens.
DeliverableTested implementation -
Handover
Deployment, observability, and a record the next engineer can follow. Support agreed around your needs.
DeliverableRunbook & ownership
The drawings,
put to work.
A cross-section of the practice. Open a drawing for the problem, architecture, and result.
05 / New work
Request for a drawing
Response ≤ 1 business dayBring the problem.
We’ll draw the system.
The product, the constraints, and what needs to change. A paragraph is enough to begin.
Discuss your project ↗