Diego Ariza — Project Direction, AI & Strategy · MIT Sloan

Services for engineering firms, developers & law firms

Big-infrastructure experience, available by the project

I absorb your team's technical bottlenecks —MEP design and calculation, permitting and expert reports— with the rigor of someone who led engineering on projects up to $200M at Acciona and served in the CEO Office of Siemens. You're not hiring a junior: you're hiring direct executive experience.

⚡

For engineering firms & contractors

MEP Technical Overflow

I absorb your project office's peak load: MV/LV single-line diagrams, hydraulic schematics and MEP calculation for data centers and industrial facilities. Editable vector deliverables, with quality control and coordination to meet your deadlines.

📋

For developers & installers

Permitting & COIIAR Sign-off

End-to-end regulatory processing and justification (REBT, RAT, RITE) before the Industry Department of Aragón and INAGA. COIIAR-stamped projects, with cable sizing and equipment optimized to avoid cost overruns.

⚖️

For law firms & insurers

Expert Reports & Forensic Engineering

Party-appointed expert reports on industrial claims, high-power failures and HVAC collapses. Rigorous, independent analysis with a traceable, defensible methodology, and testimony in court when the case requires it.

📊

For high-complexity projects

Program Direction & Advisory

Direction of critical programs and board/C-suite advisory, where the technical and the strategic must be solved at once. The perspective of MIT Sloan and the Siemens CEO Office, applied to your project.

📍

Based in Zaragoza

European data center hub. Local regulatory knowledge and established network in Aragón.

→

🇪🇸

Available across Spain

On-site anywhere in Spain. Fast response and presence whenever the project requires it.

→

✈️

International projects

Remote or on-site. Experience across 4+ continents on projects exceeding $2B in total portfolio.

Let's talk about your project ↗

Core Specialty

Data Centers (CPD) & Critical Infrastructure

Every facility demands flawless MEP engineering, extreme reliability and energy efficiency down to the decimal. 20+ years on critical industrial installations and, as a chartered engineer in Aragón (COIIAR), available for the region's data center boom.

⚡

Power Distribution

Transformer stations, HV/LV distribution boards, busbar trunking, selectivity studies and electrical protection coordination.

🔋

Redundancy & UPS

N+1 and 2N architectures, diesel backup generators, UPS systems, automatic transfer switches and seamless failover.

❄️

HVAC & PUE Optimization

Precision cooling, free cooling, hot/cold aisle containment and PUE optimization for maximum energy efficiency.

🏗️

Construction Management & MEP

MEP design and calculation, construction management, installation coordination and commissioning of critical infrastructure.

📋

Licensing & Chartered Engineer

Chartered engineer (COIIAR). HV/LV installation legalization, activity permits and energy audits before INAGA and the Industry Department of the Government of Aragón.

🏢

Physical Infrastructure

Raised floors, cable management and tray systems, grounding, electromagnetic compatibility (EMC) and TIA-942 compliant design.

Data center project in Aragón? Let's talk ↗

📍

Aragón: Spain's Data Center Epicenter

Zaragoza and the Aragón region have emerged as southern Europe's premier data center hub, with billions in investment from Amazon Web Services (AWS) and Microsoft in areas like PLAZA, Villanueva de Gállego and El Burgo de Ebro. Based in Zaragoza, I offer EPC contractors and maintenance firms the local support they need: construction management, MEP design, installation legalization and direct knowledge of Spanish regional regulations.

Regular dealings with Zaragoza City Council, Villanueva de Gállego City Council, Industry Department — Government of Aragón and INAGA.

About Me

Two careers. One person.

I started as an engineer. ABB, transformer design. Then Acciona — where international infrastructure became my domain. Over a decade, I directed the electrical and I&C engineering on a $200M desalination plant in the UAE leading a team of 40, a $400M project in London, and a $1.5B joint venture in Australia. Projects measured in hundreds of millions, where the cost of failure is not abstract.

From that technical foundation, Siemens selected me for its CEO* Program — six engineers per year, globally. Rotations through corporate strategy, digital product and the Board of Directors Office of Siemens AG. What followed was Head of CEO Office at Siemens Gamesa, a €10B company navigating a major industrial transformation. That is where I learned that the biggest risk in a complex project is rarely the engineering — it is the decision-making above it.

Today I work at the intersection of both worlds. I direct complex programmes and advise organisations where the technical and the strategic must be solved simultaneously. MIT Sloan, IE Business School. PMP Certified. Native bilingual EN/ES. Based in Zaragoza — available globally.

Download CV ↓

MSc Management

MIT Sloan School of Management

MBA

IE Business School

Industrial Engineer

Electrical Systems · Univ. Zaragoza

Chartered Engineer

Aragón & La Rioja

🌍
0
Continents

👥
0
Engineers led

🏆
CEO*
6 selected/year · Siemens AG

📋
PMP
Project Management Professional · PMI

Track Record

A career built on the world's most demanding projects

From the world's largest infrastructure projects to the CEO Office of a €10B corporation.

🚀

Hardware + SaaS Startup

Senstile · Bilbao

Co-founded, led product development and fundraising. MVP launched in 12 months.

🏢

CEO Office — €10B+ Company

Siemens Gamesa · Bilbao

Strategic leadership, LEAP & L3AD2020 transformation programmes, Board coordination.

🔄

Post-M&A Integration Senvion

Siemens Gamesa

Led post-acquisition integration and synergy capture with Siemens Energy.

📉

Excellence in Execution — $25M Savings

Siemens AG · Germany

Analysis of 1,000+ projects and non-conformity cost reduction framework.

🌐

Global IIoT Go-to-Market

Siemens AG · Spain

Commercial strategy for "Energy Efficiency Analytics" service. 15+ clients across Europe & Asia.

📋

Siemens Energy Carve-out

Siemens AG · Germany

Strategic analysis and communication plan for the Siemens Energy spin-off.

💧

Fujairah F1 Desalination — $200M

Acciona Agua · UAE

Led 40-engineer team. $16M engineering revenue, $2M savings in electrical scope.

🌏

International Infrastructure

Acciona · Australia, UK, Spain

Project management with budgets up to $20M and full P&L with 12% gross margin.

🏛️

Expo Zaragoza 2008

Acciona · Zaragoza

Medium & low voltage installations, ventilation, HVAC and communications systems.

⭐

CEO* Program — 6 Selected Globally/Year

Siemens AG · Munich, Germany

Siemens' most exclusive high-potential programme. Rotations in corporate strategy, digital IIoT product and the Board of Directors Office.

🤖

Co-Founder & COO — mattera.ai

mattera.ai · US · 2025–present

Artificial intelligence startup. Product development and operations.

🏭

Beckton Desalination — $400M

Acciona · London, UK

Electrical & I&C Project Manager. Power and control systems construction. Contract management with local suppliers and subcontractors.

🌊

Adelaide Desalination — $1.5B

Acciona · South Australia

Electrical & I&C Interface Manager. Coordination with Joint Venture engineering teams through design, construction and commissioning.

⚡

Transformer Design — ABB

ABB · Zaragoza

Dry-type transformer design up to 3MVA for power distribution and wind industry. FEM research — 20% temperature reduction achieved.

Let's Talk

Have a project in mind?

Tell me what you need — I'll get back to you within 24 hours.

Diego Ariza Muñoz

Industrial Engineering Director · Strategic Advisor · Zaragoza, Spain
Available for national and international projects.

✉️

diego@arizaengineering.com