1-844-WOUESSI info@wouessi.comPioneering Digital ExcellenceDelivery across Canada and the United States.CAMSC A-11298SAM.gov · CAGE 1Z1Z9 1-844-WOUESSI info@wouessi.comPioneering Digital ExcellenceDelivery across Canada and the United States.CAMSC A-11298SAM.gov · CAGE 1Z1Z9
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Field Notes

Long-form essays from the engineer, designer, or lead who did the work. No vendor slop, no roundups, no sponsored placements.

Featured this week

What WCAG 2.2 actually changed for your public-sector RFPs

The nine new success criteria, translated out of spec-speak. What you will be asked to show on your next bid, and the three tests that catch eighty percent of the issues. With a side-by-side mapping to AODA and Section 508.

AI and Data 2026-04-22 Read time: Six minutes By Aria Patel, accessibility lead
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Recent essays

Evaluations before prompts: the model selection process we run with clients

How we shortlist models for a regulated agent, the evaluation harness we hand the customer on day ninety, and why we ditched the 'try GPT-4 first' default.

Five minutesRequest the essay

Green Lakehouse: cutting a Snowflake bill thirty-eight percent without firing a query

The reservation, compute-right-sizing, and storage-tiering moves that quietly halved our biggest client's warehouse spend, and the one Terraform module we open-sourced along the way.

Seven minutesRequest the essay

Writing for a MERX RFP: the five fields your proposal keeps failing on

After forty-plus municipal and provincial submissions, the same five scoring questions trip vendors up. Here is the pattern, and a page-one rewrite that pulled an eighty-three from a sixty-six.

Eight minutesRequest the essay

Design systems that survive leadership changes

Three tokens, two governance principles, one naming convention. The 'boring' choices that let a design system outlast the VP who approved it.

Six minutesRequest the essay

Why our average tenure is north of four years

Compensation is necessary, not sufficient. The staffing, project rotation, and learning-budget practices that keep senior engineers engaged past year three.

Five minutesRequest the essay

Retrieval still beats fine-tuning for most enterprise use cases

When RAG is the right answer, when it is not, and the hybrid architecture we ship to clients who want both a grounded tone and a learned one.

Six minutesRequest the essay

The accessibility copilot we wished we had (and open-sourced)

A linter that catches keyboard traps and color-contrast failures before a designer hits export. How it plugs into Figma, Storybook, and our CI.

Four minutesRequest the essay

Zero-downtime database migrations on a multi-billion-dollar product surface

Expand-contract, dual-write, backfill, cutover, cleanup. The canonical five-step recipe we use, with the exact commit sequence that worked on a fifty-million-row table.

Nine minutesRequest the essay

What Protected B actually requires, in plain language

Residency, encryption, identity, and audit. We walked our auditor through the architecture; here is what they pushed back on, and what they signed.

Seven minutesRequest the essay

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Certified supplier

CAMSC Certified · Certificate A-11298

Wouessi is a Canadian Aboriginal and Minority Supplier Council (CAMSC) certified business. Our certification supports the supplier diversity programs of Canadian banks, government departments, and enterprise buyers in North America.

CAMSC A-11298 SAM.gov · CAGE 1Z1Z9 UEI RMU6LK3W6NZ5
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