Steven Hayden

Work

From requirement to verified product.

Lead Engineer at Vestas R&D, working across requirements management, DFMEA, test and verification, and data analysis.

01

Requirements

Traceable from need to test case.

02

DFMEA

How a design can fail, before it does.

03

Test and verification

Evidence that the product meets its requirements.

04

Data analysis

Test and field data turned into decisions.

Side projects

Built and run on my own: designed, tested and deployed like a small product.

Relative rotation graphs

Sector and asset-class rotation, plus a second version that normalises the axes so distances compare across markets.

python · flask · nginx · raspberry pi · tiingo

Portfolio overview

Holdings encrypted at rest, a percent-only view and an expanded view behind a second code, prices fetched on exchange hours with back-off.

python · aes-gcm · scheduling · playwright tests