TechNorthIndependent Judgement
Accepting engagements · Q3 2026 / Málaga · remote-first / EN · ES native

Is your tech vendor the only one who understands your critical system?

Independent technical oversight so that leadership regains control, reduces tech debt and makes decisions without depending on a single voice.

Does it make sense to talk?
01 Do we fit?

Does it make sense for us to talk?

Three questions. No form, no cookies. No strings attached.

Question 0 / 3
01

Do you have custom or proprietary software running your business?

02

Who guarantees that what gets delivered is solid?

03

What brought you here?

Makes sense to talk

Your situation fits.

Critical software, no independent oversight, and a concrete reason. That's exactly the kind of conversation that makes sense.

Apparent mismatch

Probably not the right moment.

Based on what you've told me, my profile isn't what you need right now. But if you want to validate it on a quick call, no problem — if I don't see a real fit, I'll tell you directly.

02 The problem

Your software is moving forward, but control doesn't always keep pace.

Three symptoms any board member or GM recognises immediately. If two of them are true, we already have something to talk about.

Symptom 01

I pay a vendor I cannot evaluate.

They've been delivering software I don't fully understand and that gets more expensive to maintain every year. When something breaks, I have nobody with the judgement to defend my position.

→ The conflict of interest is on the inside
Symptom 02

Every change scares us.

The system runs a meaningful part of daily operations, it has been growing for years, and deployments are frightening. I can't tell whether the issue is the team, the process or the code itself.

→ Architectural ceiling
Symptom 03

My team uses AI without method.

Copilot, Cursor, Claude — they're inside the development flow with no governance, no real productivity metrics and no security policy. Technical debt is silently accelerating.

→ Adoption without guidance
03 Where to start

If this is happening to you, start here.

You don't have to guess which engagement fits. The situation decides.

04 Cases

Four engagements, real metrics, critical systems.

Auditable metrics on high-availability critical systems. Full dossier available after a first conversation.

Processing Platform · Architecture & Scalability

Transition to asynchronous distributed architecture to guarantee full availability under peak load.

Critical processing platform with high operational demand. Redesign towards asynchronous distributed architecture with zero downtime and without rewriting the core engine.

100% Availability guaranteed under peak load. Scaling capacity unlocked for commercial growth.
Transactional Platform · Optimisation & Performance

Data model redesign and migration to event-driven architecture on a critical transactional platform.

Critical transactional platform handling high volumes of concurrent operations. Data model redesign and adoption of event-driven streaming, drastically reducing response times and infrastructure pressure.

−95% Reduction in response times. Improved operational efficiency and capacity freed for a new business line.
Corporate Component · Architecture & Quality

Technical leadership of a critical cross-functional component: architecture, quality and automation.

Critical corporate component spanning multiple technology teams. Architectural transformation to Hexagonal Architecture, testing framework built from scratch, CI/CD pipeline standardisation and governed delivery process.

>95% Coverage across unit and integration tests. Standardised CI/CD pipeline with deployment speed multiplied for all consuming teams.
Inherited Codebase · AI with Method

Functional beta in one month where the conventional plan estimated five or six.

Highly complex inherited codebase with a one-month delivery window. Applied a proprietary four-flow canonical AI playbook: incremental refactor, AI-assisted test generation, adversarial PR review and automated documentation.

1 month For what the conventional plan estimated at five or six. No new technical debt. No time extension.
05 Who I work with

I work with people who already get that software is an asset.

If your company relies on critical software and needs an independent second opinion on what is being delivered, we probably fit. The right column describes the three scenarios where I have nothing useful to offer.

→ NATURAL FIT
  • Company with critical software running >50% of daily operations. Sector is open: industry, logistics, hospitality, fintech. What matters is the real operational weight of that software in the business.
  • Historical investment >€150k accumulated in development. Enough proprietary code for an audit to carry real weight and its conclusions to be actionable.
  • Investor with a tech thesis before Term Sheet or acquisition. VC, Family Office, Corporate Venture, M&A advisor. An independent technical second opinion before signing the Term Sheet or closing the deal.
→ NOT A FIT
  • Looking for a software factory. I don’t build applications from scratch. Supervision and directed modernisation, not bespoke development.
  • Packaged platform with no proprietary technical layer. SaaS, ERP, CRM or configurable third-party solution: without proprietary code to audit, there is no working surface.
  • Mature technical team with internal Staff or Principal engineers. If you already have senior engineers with real judgement for evaluating what is delivered internally, my role is already covered.
06 About Antonio

Nine years rescuing critical software in industries where mistakes don't fly.

Regulated environments, high-availability systems, data. Founder experience early on. Tech Lead of a team I left fully autonomous. Today, independent technical supervision for companies that need a second opinion on what their vendor — or their own team — is actually delivering.

Antonio Reina González

Antonio Reina González

Independent technical advisor · B2B

I spent nine years rescuing critical systems in environments where software failures are not an option: regulated banking, cybersecurity, data engineering. The pattern was always the same — someone had trusted a single voice for too long to evaluate what was being delivered. Today, that independent voice is mine. What in construction would be called an independent clerk of works: the technical expert on the client's side, not the vendor's.

I led the stabilisation of a critical communication component serving multiple internal teams — handed over without tests, without documentation and without governance. Before that I did the equivalent on a high-volume processing system. That is what gives me the judgement to oversee yours.

07 FAQ

What I don't do. And why.

Explicit filters. If we fit, we fit. If we don't, we save both sides a long conversation.

Do you certify against DORA, NIS2 or ENS?

The audit covers code, architecture, infrastructure and resilience — not regulatory accreditations. DORA, NIS2 or ENS require certified bodies; if you need it, I'll route you to the right profile.

Do you do pen-testing or judicial expert work?

Not my turf. For pen-testing or judicial expert work I recommend specialists with offensive certification. If you tell me the context I can suggest the right profile.

Do you build greenfield applications?

No. The model is supervision and directed modernisation over existing systems, not software delivery. If you need greenfield I'll route you to a trusted development boutique.

Do you work with legacy stacks (COBOL, RPG, SAP ABAP, SCADA…)?

No — outside my verifiable expertise. I decline the engagement even at a premium: better to be clear upfront than to compromise the quality of the work.

Do you bill hourly?

No. The model is fixed scope or monthly retainer with SLA. Hourly billing creates the wrong incentive: I would earn more if the project runs long; you want it done well and fast. Fixed price aligns us both.

Remote or on-site?

Remote by default, with occasional visits to Madrid or Andalusia when they add real value. On ongoing supervision, communication is typically asynchronous with a guaranteed 48-hour business response.

Are findings confidential?

Yes. Standard NDA before kickoff. Published cases are anonymised with explicit client consent. IP of the executive report transfers after full payment.

How is this different from a tech boutique?

Boutiques sell teams and projects. This is the founder's judgement with limited, publicly visible capacity and an SLA. I don't replace your team: I work alongside it and leave it more capable.