Power Performance Testing Engineer

Quest Global; Spain; On-site; EUR 42,000 - 64,000; Full time

Job summary

Quest Global in Spain seeks a wind turbine performance test engineer to lead field testing and data analysis. You will evaluate site factors, perform operability checks, and prepare validated data packages for contractual analysis.

The role requires a degree in mechanical, aerospace, or electrical engineering, hands-on testing experience, and strong writing and presentation skills to communicate results to diverse stakeholders.

Qualifications

• Bachelor’s or Master’s in Mechanical, Aerospace, or Electrical Engineering.
• Experience in wind turbine performance testing is preferred.
• Strong documentation and data analysis skills are required.

Responsibilities

• Lead wind turbine performance tests as the primary contact for stakeholders and testing entities.
• Ensure all performance tests are executed in strict accordance with contractual requirements.
• Evaluate site topography and obstructions to prepare for performance testing.
• Conduct operability assessments to confirm turbines meet design expectations before testing.
• Clean and process raw data into validated sets for contractual analysis.
• Compare results against expectations, assess risks, and support technical plans to address underperformance.
• Apply validated testing methods and ensure all documentation and results are uploaded to client systems of record.

Skills

Technical writing

Cross-functional collaboration

Presentation skills

Problem solving

Independent work

Data interpretation

Communication

Education

Bachelor’s or Master’s in Mechanical, Aerospace, or Electrical Engineering

Tools

SCADA

MATLAB

Bladed

Python

R

CFD

LIDAR

Meteorological mast instrumentation

Data loggers

Sonic anemometers

Calibration

Job description

Job Requirements

At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.

Key Responsibilities

• 1. Lead wind turbine performance tests as the primary contact for stakeholders and testing entities.
• 2. Ensure all performance tests are executed in strict accordance with contractual requirements.
• 3. Evaluate site topography and obstructions to prepare for performance testing.
• 4. Conduct operability assessments to confirm turbines meet design expectations before testing.
• 5. Clean and process raw data into validated sets for contractual analysis.
• 6. Compare results against expectations, assess risks, and support technical plans to address underperformance.
• 7. Apply validated testing methods and ensure all documentation and results are uploaded to client systems of record.

Deliverables

• A technical report quantifying how local terrain and obstacles impact wind flow and test validity.
• A baseline assessment confirming turbine performance against design intent prior to formal testing.
• A high-fidelity, validated data package derived from turbine and weather inputs for contractual analysis.
• A detailed report comparing measured power curves to contractual curves to identify performance gaps.
• A summary of identified gaps and the impact of environmental variables - such as turbulence and density - on test results.

We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.

We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.

Work Experience

Bachelor’s degree or Master’s in Mechanical, Aerospace, or Electrical Engineering

Technical Skills

• Standards & Protocols: IEC 61400-12-1, IEC standards, GWO Basic Safety Training, OSHA compliance, LOTO.
• Testing & Measurement: Power performance testing, LIDAR and meteorological mast instrumentation, sonic anemometers, data loggers, calibration.
• Software & Analysis: SCADA, MATLAB, Bladed, Python/R for data cleaning and time-series analysis, CFD.
• Field Operations: On-site sensor installation, commissioning support, site safety, root-cause analysis.
• English

Experience

• Owned and managed end-to-end power performance testing projects in compliance with IEC standards, controlling project budgets and schedules
• Deployed and calibrated custom measurement systems (LIDAR, met masts, meteorological sensors) on commercial wind turbines
• Performed post-production time-series data cleaning, filtering, quality analysis, and normalization against hub-height wind speed and turbulence intensity
• Generated formal power curve verification reports for asset owners, developers, and turbine OEMs, identifying underperforming assets and pitching fixes
• Streamlined field deployment workflows, reducing on-site setup time and lab prep overhead

Certifications

• GWO (Global Wind Organisation) Basic Safety Training
• OSHA / High-Voltage & LOTO Safety
• PMP, optional

Soft skills

• Clear and concise technical writing.
• Ability to explain validation results and engineering conclusions to non-specialists.
• Good verbal communication and presentation skills.
• Ability to communicate assumptions, risks, uncertainties and recommendations clearly.
• Strong documentation discipline.
• Effective collaboration with global, cross-functional engineering teams.
• Ability to work with Design, T & V, Micrositing, WRA, certification and project teams.
• Ability to work independently while escalating issues appropriately.
• Strong problem-solving and analytical mindset.
• Ability to identify trend