Sheet 00 · Cover Drawn for the founder considering senior engineering help 2026 · Rev. 1

Senior judgment, not headcount.

Most engagements start with a 2 week audit. €10K. Refundable after kickoff. Then integration, build, or retainer follow.

I help founders and CTOs ship the work that compounds. AI features that hold up in production. Platforms that survive the second year. Architectural calls that do not have to be unwound at Series A.

Three engagement shapes after the audit. AI integration from €25K. Build engagements from €30K, capped at €60K. Advisory retainer from €8K per month. Three to four engagements per quarter, no more.

Or run the fit check first.

FIG. 01 · Practice as a systemscale 1:1
Rev. May 20261 of 1
/ Practice, dimensioned /
13+
Years senior engineering
7
Production platforms shipped
9
Long-form essays published
3-4
Engagements per quarter, capped
Sheet 01ShapesEngagement

Three engagement shapes, drawn.

Each shape is bounded, dimensioned, and priced before work starts. Below the floor or above the cap, the studio refers out with names. Public pricing reviewed quarterly.

Shape 01AI integrationPRIORITY

Add AI to a product that already has users.

Two weeks to a written brief on architecture, vendor stack, production cost, and a go or no-go. If the brief says ship, the integration build picks up where the audit ends.

Audit
€10K, 2 weeks
Build
From €25K, 6 to 10 weeks
Mechanism
Fixed scope, 20% holdback on build
Credit
Audit fee credits to build inside 45 days
Read the AI integration audit detail →
CORPUS YOUR DATA RETRIEVER + RE-RANK MODEL ENT. TIER EVAL HARNESS REGRESSION AUDIT LOG 7 YR RETN. OUTPUT SOURCED VALIDATES 6-10 WEEKS
Shape 02Build engagement

Greenfield, modernization, or unblocked feature.

End to end ownership through production handoff. Scope locked at the SOW; meaningful new scope is a written change order with a price delta agreed before work resumes. Working software at every milestone gate.

Floor
From €30K, capped €60K
Window
4 to 12 weeks
Holdback
20% at final acceptance
Above cap
Refer to peer studio
Read the build detail →
SOW M1 M2 M3 ACCEPT SCOPE LOCK SHIP SHIP SHIP + HANDOFF 20% HOLDBACK + 30D STAB. 4-12 WEEKS
Shape 03Advisory retainer

Senior judgment, weekly, on the architecture decisions that compound.

For founders or heads of engineering who do not need a full time CTO. Architecture reviews, hiring panels for senior roles, vendor evaluations, board prep on the technical narrative, and the calls outside the sprint board.

Floor
From €8K /month
Pilot
4 weeks from €10K
Minimum
6 months after pilot
Capacity
Two retainers held at any time
Read the retainer detail →
WK 1 MON MON MON MON 1:1 / 60-90 MIN 1:1 / ASYNC BETWEEN 1:1 / + ARCH REVIEW 1:1 / WK 4 = PILOT END ARCH MONTH 1
Sheet 02WorkSelected platforms

Production systems, shipped.

Four production platforms across HR, real time geospatial, content streaming, and consumer software. Architected end to end, operated long enough to learn what the first design got wrong.

Sheet 03WritingParts list

Notes from the build floor.

Pricing transparency. Fractional CTO mechanics. Replatforming framework. Cross-border hiring diligence. AI integration cost in regulated industries. Read what the studio actually does before booking the call.

/ All entries on the writing index → · / Run the 6-question fit check →

Sheet 04AboutThe operator

A solo practice, by design.

The studio operates as a senior solo practice with AI tooling deeply integrated and senior contractors brought in on specific scopes. Continuity is built into the engagement model.

Thirteen plus years shipping production engineering. Architecture chops on real time systems, AI feature integration into shipped products, regulated-industry build constraints, and the senior hires that come with growing engineering teams from two to twenty.

The previous shape, an eighteen person team between 2022 and 2024, was deliberately wound down once AI tooling matured to the point where one senior operator and a tight contractor bench could deliver the focused work scale-ups actually need.

Continuity is contractual, not goodwill. Every retainer includes a written handover plan in the SOW. Every build engagement ships with documentation and runbooks the client team owns at handoff. Three to four engagements per quarter is the cap. The studio walks from anything outside that capacity, regardless of price.

The commercial entity is QuantaLynk. Engineering practice, contracts, and founder-level technical decisions sit here. Reach me on LinkedIn or by booking a 30 minute call below.

Sheet 05ContactSubmit a brief

What is on your desk?

A short note about the system, the deadline, and the constraints is enough to start. Reply same business day during EU hours.