A technical advisor for a family office is a fractional senior engineer who designs and implements internal systems — IR document workflows, PDF-to-Excel pipelines, custody data ingestion, tax-document automation — under a monthly retainer with outcomes tied to measurable time-saved or error-rate reduction. The role sits between the COO and external SaaS vendors. The advisor's code, documentation, and infrastructure stay with the family office.
That is the definition. The rest of this page is the long answer — why the role exists, what specifically it covers in an Iberia family office, how AEPD treats it differently than US-market work, what a typical engagement costs, and three example workflows that recur across most of the family offices I have worked with.
Why the Role Exists at All
Most family offices in Iberia are operationally small — a COO, an operations manager, maybe one or two analysts, sometimes a part-time accountant. The teams are deliberately lean because the families want decisions made by trusted people, not by committees.
This works for investment decisions. It does not work for the slow accumulation of administrative drag: 40 PDF statements per quarter that need to be retyped into a spreadsheet, an IR document pack that takes three days to assemble, a tax window in April–June that consumes the operations manager's entire calendar.
The two conventional answers — hire more operations staff, or buy enterprise SaaS — both fail the test of why the family office is structured the way it is. Headcount means trust dilution. SaaS means another vendor in the AEPD record of processing activities and another per-seat line that grows without anyone re-approving it.
The third answer — fractional technical advisor — exists because someone who lives at the engineering layer can build the specific small tool that closes the specific gap, hand it over with documentation, and stay on retainer to handle the next one. The family office's headcount does not grow. The vendor count actually shrinks.
What the Role Is Not
It is easier to define the role by what it is not.
- Not an MSP. Managed service providers run your infrastructure — Microsoft 365 administration, endpoint security, network monitoring. A technical advisor builds workflows on top of the infrastructure you already have.
- Not a CTO-as-a-service. A fractional CTO sets technology strategy and hires engineers. A family office at this size does not have engineers to hire — the technical advisor is the engineer.
- Not a SaaS reseller. No commission on tools you adopt. The advisor's compensation is the retainer plus outcome-linked success fee, not a kickback from Salesforce.
- Not a security consultant. Security advice happens in the natural course of the work (AEPD documentation, MFA setup, encrypted-at-rest custody for tax PDFs), but the advisor is not auditing your firewall.
The cleanest mental model is: a senior engineer who would normally cost the family office €120K-€180K fully loaded as a full-time hire, available for 4–8 hours a week on retainer instead, with deliverables documented monthly.
What an Engagement Costs
Two common structures.
Retainer engagement (most common). €2,500–€5,000 per month, depending on hours committed (typically 4–10 hours/week). The retainer covers one full operational deliverable per month — for example, in month one a PDF-to-Excel ingestion pipeline, in month two a quarterly IR pack assembly tool, in month three a tax-document routing rule set. A small success fee is layered on top, typically 10% of documented year-one savings.
Fixed-price project (when scope is narrow). €5K–€15K for a single deliverable with no ongoing commitment. Used when a family office wants to test the working relationship before signing a retainer, or when there is exactly one workflow that needs fixing and nothing else.
What is explicitly not included: 24/7 incident response, software licenses you choose to buy, custody-platform integrations that require their commercial agreement, anything labelled "investment advice." Those are out of scope by structure, not by negotiation.
Three Workflows That Recur
Three workflows show up in almost every Iberia family office engagement I have run. The numbers below are real, drawn from a top-10 European VC fund's family-adjacent operations team and from two smaller Madrid-based family offices.
1. Custody and fund-admin statement ingestion. Custody statements and fund administrator reports arrive as PDFs, typically once a month, often in inconsistent formats from each counterparty. Someone retypes them into a master spreadsheet. Across 20–40 line items per month, this is 10–20 hours of operations time. A custom PDF parser with a structured extraction layer reduces this to 30 minutes of review. Build time: 1–2 months on retainer. Documented savings at the VC fund: €18,400/year.
2. IR document assembly. Quarterly investor reports require pulling NAV, returns, capital account summaries, and commentary from four or five systems into one PDF pack per LP. For a fund with 25 LPs, this is 15–20 hours of work per quarter — 60–80 hours per year. A small automation layer that pulls from each source system and renders a per-LP PDF reduces this to 2 hours of review per quarter. Documented case study: Fund Operations Automation, €100K+ annual savings on the full pipeline.
3. Spanish tax-window routing. April–June is when Spanish family offices process declarations for the families, partners, and any dependent entities. Documents arrive from custody, brokers, banks, and the gestoría. Without automation, the operations manager personally routes each document — a workflow that consumes 30–40 hours over the eight-week window. A document-classification rule set plus Slack/email routing reduces this to a check-and-approve workflow. Time saved per cycle: 25 hours minimum.
These three workflows alone, automated once, save a typical 50-person family office between €30K and €60K per year in operations time, depending on AUM and document volume. The retainer pays back in under six months in every engagement I have run.
AEPD and the GDPR Question
Spanish data protection authority guidance treats family office data as high-sensitivity personal data because it identifies beneficial owners, contains tax identification numbers, and routes through custody statements that reveal asset positions.
Two implications matter operationally:
- Sub-processor count is a compliance burden. Every SaaS tool adopted by the family office adds a record-of-processing-activities entry, a Data Processing Agreement to review, and an annual due-diligence task. A family office that grew to seven SaaS tools without re-examining the inventory is doing 7× the compliance work of one that consolidated to three plus internal tooling.
- Data residency matters for AI workflows. If the family office uses any AI workflow (document classification, statement parsing, IR commentary drafting), the LLM must run in EU-resident infrastructure. Default vendors here are Anthropic's EU endpoint, Azure OpenAI in West Europe, or self-hosted Llama on Hetzner / OVH. This is not a cost question — it is a compliance answer with a specific configuration.
A technical advisor who knows the AEPD landscape is materially different from a generalist consultant. Documentation gets written with the family office's compliance officer in mind, not as an afterthought.
When the Role Does Not Fit
Three situations where a fractional technical advisor is the wrong answer:
- The family office has €1B+ AUM and a 20-person operations team. At that scale, you need a CTO and an internal engineering function. Fractional ends at roughly €500M AUM or 10 ops staff.
- The pain is investment-side, not operations-side. Portfolio analytics, deal tracking, and investment reporting are best handled by specialized vendors (Addepar, Eton Solutions, Masttro) with internal admins. Fractional engineering does not compete with those.
- The family office is in a regulatory examination. Active CNMV or Banco de España inspection windows are not the right time to introduce new internal tooling. Defer engagement until the inspection closes.
How Engagements Start
One discovery call, 20 minutes, no pitch. The output of the call is a one-page map of where time is leaking inside the family office and an honest answer about whether I can help. About one in three discovery calls converts to an engagement. The other two-thirds get a one-page map and a referral to the right vendor.
This is the deliberate filter. Family office work is relationship-heavy and reputation-bound. Saying "this is not my fit, here is the person you should talk to" preserves the option to work together on something else in a year.
I run a fractional technical advisory practice for family offices and wealth managers in Iberia. Madrid-based. Retainer or fixed-price. The full advisory page is here, and the discovery-call calendar is here — 20 minutes, no pitch, no deck.
