Over Díaz - Senior Quality Manager

Q: Where is Over based?

Over is based in Hamburg, Germany .

Q: What languages does Over speak?

Over speaks the following languages: Spanish (Native), German (Advanced), English (Advanced), Portuguese (Advanced), French (Elementary) .

Q: How many years of experience does Over have?

Over has at least 32 years of experience. During this time, Over has worked in at least 9 different roles and for 10 different companies . The average length of individual experience is 1 year and 4 months . Note that Over may not have shared all experience and actually has more experience.

Q: What is Over's latest experience?

Over's most recent position is Senior Quality Manager at Denys GmbH .

Q: What companies has Over worked for in recent years?

In recent years, Over has worked for Denys GmbH , Dorsch GmbH , AFRY Deutschland , and DMT GmbH .

Q: Which industries is Over most experienced in?

Over is most experienced in industries like Construction , Utilities , and Energy . Over also has some experience in Education , Automotive , and Manufacturing .

Q: Which business areas is Over most experienced in?

Over is most experienced in business areas like Project Management , Quality Assurance , and Procurement . Over also has some experience in Research and Development , Supply Chain Management , and Operations .

Q: Which industries has Over worked in recently?

Over has recently worked in industries like Construction and Utilities .

Q: Which business areas has Over worked in recently?

Over has recently worked in business areas like Project Management , Quality Assurance , and Procurement .

Recommended expert

Hamburg, Germany

Check rate

Experience

Oct 2024 - Dec 2025

1 year 3 months

Frankfurt am Main, Germany

Senior Quality Manager

Denys GmbH

Responsible for quality assurance (QA/QC), as-built documentation and audit planning
Coordinating inspection of open trench and trenchless construction work (HDD, microtunneling)
Quality control of HDPE pipe welding, conducting quality tests, pigging, pipe calibration and leak testing (pipe diameters 50–500 mm)
Ensuring compliance with highest safety, environmental and quality standards

Jul 2023 - Jun 2024

1 year

Saudi Arabia

Senior Project Manager

Dorsch GmbH

Execution planning of the hydraulic system for distribution of treated wastewater from 22 treatment plants in 22 cities
Design of storage pressure vessels (up to 200 m³/d), pumps (up to 2 m³/s, 10 bar) and water transmission pipelines (up to 100 km)
Design of SCADA and MEICA systems
Inspection of existing treatment plants and conducting feasibility studies
Tendering process, leading an international design team (Qatar, Egypt, UAE) and managing subcontractors
Coordination with stakeholders

Apr 2022 - Sep 2022

6 months

Schwerin, Germany

Interim Head of Structural Water Engineering

AFRY Deutschland

Planning and execution of dike rehabilitation, dike construction and flood protection projects
Water supply and disposal, drainage planning and water body protection
Technical and disciplinary leadership of project teams
Project acquisition, controlling and personnel management

Jan 2020 - Dec 2021

2 years

Abu Dhabi, United Arab Emirates

Senior Construction Supervisor

DMT GmbH

Construction supervision of stormwater channels and retention basins at the Sheik Shakhbout Medical Center
Expansion of stormwater drainage for site and buildings
Documentation and specification control, as well as review of construction drawings
Monitoring budgets and schedules
QA/QC, supervision of contractors and subcontractors/suppliers
Technical acceptance of materials and machinery

Jan 2020 - Dec 2020

1 year

Romania

Project Manager

Technical project management for the expansion of a mining facility
Evaluation of the tailings dam condition and review of flood data
Analysis of dam overflow, dam failure risk and dam safety features

Jan 2019 - Dec 2019

1 year

Pakistan

Project Manager

Technical project management for the drainage planning of a mining facility
Design of the pumping system for open-pit dewatering

Jan 2017 - Dec 2018

2 years

Mozambique

Project Manager

CES Consulting Engineers Salzgitter GmbH

Led EPC projects for the planning and construction of water supply, water treatment, and stormwater systems in six cities
Applied international standards and coordinated multidisciplinary teams
Reviewed execution documents, managed tenders, and oversaw awarding
Handled procurement, controlled documentation and specifications, and checked construction drawings
Monitored budget and schedules, managed QA/QC, and supervised construction

Jan 2016 - Dec 2016

1 year

Peru

Project Manager

CES Consulting Engineers Salzgitter GmbH

Technical project management, expert assessment, and condition evaluation of two sewage treatment plants with sea discharge
Reviewed maintenance measures

Jan 2015 - Dec 2015

1 year

Trà Vinh, Viet Nam

Senior Construction Supervisor

CES Consulting Engineers Salzgitter GmbH

Supervised the construction of a sewage treatment plant
Evaluated contractors and awarded construction packages
Controlled documentation and specifications and reviewed construction drawings
Monitored budget and schedules, handled QA/QC, and performed technical acceptance of materials and equipment

Jan 2014 - Dec 2014

1 year

Armenia

Project Manager

CES Consulting Engineers Salzgitter GmbH

Technical project management and feasibility study for a 9 MW hydropower plant

Jan 2013 - Dec 2013

1 year

Nha Trang, Viet Nam

Project Manager

CES Consulting Engineers Salzgitter GmbH

Reviewing planning documents and supervising construction of a wastewater treatment plant
Managing contractors and awarding construction packages
Checking documentation and specifications, and reviewing shop drawings
Monitoring budget and schedules, QA/QC, and technical approval of materials and equipment

Jan 2012 - Dec 2012

1 year

Germany

Team Leader Offshore Wind Farm Construction

AREVA WIND and AREVA NP GmbH

EPC-oriented team leadership for construction of offshore wind turbines
Responsible for QA/QC, non-destructive testing, supplier management, and technical approvals
Experience with fabrication and assembly processes of steel components under EPC standards and HSE requirements

Jan 2011 - Dec 2011

1 year

Japan

Project Manager

AREVA WIND and AREVA NP GmbH

Technical project management of a turnkey EPC project for radioactive water treatment in Fukushima
QA/QC, international supplier coordination, site inspections, and commissioning
Project control under high safety and quality pressure

Jan 2010 - Dec 2010

1 year

Argentina

Project Manager

AREVA WIND and AREVA NP GmbH

Technical project leadership for the expansion of the Atucha nuclear plant
Reviewing and redesigning piping and utility systems
Quality control of documentation and materials, non-destructive testing, factory inspections, supplier qualification, and technical approvals

Jan 2009 - Dec 2009

1 year

Finland

Project Manager

AREVA WIND and AREVA NP GmbH

Project management and coordination of the manufacturing of steel control valves for the OL3 nuclear plant in Olkiluoto
Quality management (QA/QC), design review, and documentation review
Planning and conducting factory inspections and coordinating with suppliers and clients

Jan 2009 - Dec 2009

1 year

Kenya

Project Manager

CES Consulting Engineers Salzgitter GmbH

Planning of municipal water supply and pumping systems
Hydraulic design of a 30 km water transmission pipeline (DN 600) and pressure surge calculations

Jan 2008 - Dec 2008

1 year

Azerbaijan

Construction Supervisor

CES Consulting Engineers Salzgitter GmbH

Supervision of construction of a well field (72 production wells and 19 monitoring wells) and a 251 km transmission pipeline (197 km GRP, 54 km steel pipe, DN 2000, PN 10–25)
Review of execution documents, tender management and awarding
Procurement, documentation and specification control, review of execution drawings
Budget and schedule monitoring, QA/QC and technical acceptance of materials and machinery

Jan 2007 - Dec 2007

1 year

Egypt

Project Manager

CES Consulting Engineers Salzgitter GmbH

Project management for Program II on the rehabilitation of pumping stations
Evaluation and review of execution planning, training and construction supervision for refurbishment and expansion projects of water supply and drainage systems
Documentation and specification control, review of execution drawings
Budget and schedule monitoring, QA/QC and technical acceptance of materials and machinery

Jan 2006 - Dec 2006

1 year

German, Bulgaria

Project Manager

CES Consulting Engineers Salzgitter GmbH

Design review of mechanical equipment for a wastewater sewer system and treatment plant in Pazardzhik
Supervision of tests during completion, pre-commissioning, commissioning and testing phases

Jan 2005 - Dec 2005

1 year

Romania

Project Manager

CES Consulting Engineers Salzgitter GmbH

Consulting and peer review for the rehabilitation of 33 wastewater pumping stations in Constanta
Review of execution planning

Jan 2001 - Dec 2004

4 years

Germany

Project Manager

PKW Planungs und Konstruktionsbüro Wolfsburg GmbH

Project management for R&D infrastructure projects at Volkswagen to improve series production
Planning and overseeing the construction of conveyor systems for bodywork, doors and seats, as well as steel platforms and ventilation systems
Simulating production lines, procurement, creating documentation, QA/QC, supplier qualification and management, contract awarding and acceptance

Jan 1999 - Dec 1999

1 year

Peru

Project Manager

Hidrotec

Hydraulic planning of lagoon regulation (Apata-Tranca) to increase water volume in the Mantaro basin
Design of the Mantaro power plant expansion: Pelton turbines, intake structures, sand traps, forebays and penstocks

Jan 1994 - Dec 1998

5 years

Germany

Researcher

TU Braunschweig Institute of Hydraulic Engineering

Research on river sediment transport, rockfill revetments, scour, erosion and sediment transport

Jan 1990 - Dec 1992

3 years

Peru

Project Engineer

Electroperu

Technical project coordination and supervision of hydraulic model tests to optimize water intake, sand traps and bypass tunnels of the Cañon del Pato and Carhuaquero power plants
In-situ measurements to estimate sediment transport, bedload, suspension and total load in the Santa River and in the processing plants

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Construction, Utilities, Energy, Education, Automotive, and Manufacturing.

Construction

Utilities

Energy

Education

Automotive

Manufacturing

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Project Management, Quality Assurance, Procurement, Research and Development, Supply Chain Management, and Operations.

Project Management

Quality Assurance

Procurement

Research and Development

Supply Chain Management

Operations

Summary

Dr.-Ing. Over Díaz is an experienced project manager and specialist civil and mechanical engineer with over 25 years of international experience successfully implementing large-scale industrial plant construction projects, especially in the energy, water and environmental sectors. His strengths lie in managing complex EPC projects (Engineering, Procurement, Construction), quality and risk management as well as leading interdisciplinary teams worldwide.

Experienced project manager in industrial plant construction with a focus on EPC projects in water, energy, environment, infrastructure and pipeline construction. Over 25 years of international experience in planning, controlling and delivering complex large-scale projects, including large plants such as hydropower plants, wastewater treatment plants, offshore wind farms, nuclear energy facilities as well as extensive pipeline projects for water, wastewater and energy transport. Specialized in coordinating all project phases – from concept development through procurement to construction execution and commissioning.

Skills

Project Management In Industrial And Energy Plants
International Project Leadership In 19 Countries
Project Management According To Pmi And Scrum
Qa/Qc, Factory Acceptance Tests, Iso-Compliant Audits
Piping, Plant And Utility Engineering
Managing Budgets, Schedules And Subcontractors
Technical Project Management
Technical And Disciplinary Leadership Of Teams
Quality Management (Qa/Qc)
Budget And Schedule Control
Supplier Management
International Projects In 19 Countries Worldwide Have Sharpened My Intercultural Skills And My Ability To Work In Complex Environments.

Languages

Spanish

Native

German

Advanced

English

Advanced

Portuguese

Advanced

French

Elementary

Education

Oct 1994 - Jun 1998

Tech. Univ. Braunschweig

Dr.-Ing., Hydraulic Engineering · Hydraulic Engineering · Braunschweig, Germany

Oct 1990 - Jun 1992

Univ. Villareal, Lima

M.Sc. Construction Management · Construction Management · Lima, Peru

Oct 1982 - Jun 1988

Univ. San Marcos, Lima

B.Sc. Fluid Mechanics · Fluid Mechanics · Lima, Peru

Certifications & licenses

Auditor for Energy Management Systems (ISO 50001)

Psm I

Pspo I

Statistics

Experience

Total positions 24

Experience in Construction 11 y

Avg length 1 y 4 m

Longest experience 4 y 11 m

Global Experience

Countries worked in 16 (Germany, Peru, Romania, Viet Nam, Saudi Arabia, +11)

Primary country Germany

Expertise

Recent roles Senior Quality Manager, Senior Project Manager, Interim Head of Structural Water Engineering

Main industries Construction, Utilities, Energy

Main business areas Project Management, Quality Assurance, Procurement

Qualifications

Highest degree Doctorate

Certifications earned 3

Profile

Created

June 2025

Last Update

June 2026

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Frequently asked questions

Have questions? Find more information here.

Where is Over based?

Over is based in Hamburg, Germany.

What languages does Over speak?

Over speaks the following languages: Spanish (Native), German (Advanced), English (Advanced), Portuguese (Advanced), French (Elementary).

How many years of experience does Over have?

Over has at least 32 years of experience. During this time, Over has worked in at least 9 different roles and for 10 different companies. The average length of individual experience is 1 year and 4 months. Note that Over may not have shared all experience and actually has more experience.

What roles would Over be best suited for?

Based on recent experience, Over would be well-suited for roles such as: Senior Quality Manager, Senior Project Manager, Interim Head of Structural Water Engineering.

What is Over's latest experience?

Over's most recent position is Senior Quality Manager at Denys GmbH.

What companies has Over worked for in recent years?

In recent years, Over has worked for Denys GmbH, Dorsch GmbH, AFRY Deutschland, and DMT GmbH.

Which industries is Over most experienced in?

Over is most experienced in industries like Construction, Utilities, and Energy. Over also has some experience in Education, Automotive, and Manufacturing.

Which business areas is Over most experienced in?

Over is most experienced in business areas like Project Management, Quality Assurance, and Procurement. Over also has some experience in Research and Development, Supply Chain Management, and Operations.

Which industries has Over worked in recently?

Over has recently worked in industries like Construction and Utilities.

Which business areas has Over worked in recently?

Over has recently worked in business areas like Project Management, Quality Assurance, and Procurement.

What is Over's education?

Over holds a Doctorate in Hydraulic Engineering from Tech. Univ. Braunschweig, a Master in Construction Management from Univ. Villareal, Lima and a Bachelor in Fluid Mechanics from Univ. San Marcos, Lima.

Does Over have any certificates?

Over has 3 certificates. These include: Auditor for Energy Management Systems (ISO 50001), Psm I, and Pspo I.

What is the availability of Over?

Over is immediately available full-time for suitable projects.

What is the rate of Over?

Over's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.