STX Group logo

Junior Engineer in Energy Efficiency - Spanish Market

STX Group
Madrid, Spain
Full Time
Posted February 4, 2026
Apply Now

Application opens on company website

Job Description

The Junior Engineer will support the assessment, financing, and technical management of energy efficiency projects, working closely with partners and clients to develop and implement decarbonization solutions in the environmental commodities market.

Key Responsibilities

  • Support prospecting of energy-intensive customers for financing energy efficiency projects
  • Assist in identifying EPC and ESCO partners and manage relationships with technical partners
  • Conduct technical and financial analysis of energy efficiency projects
  • Review investment-grade energy audits and feasibility studies for selected projects
  • Develop technical documentation for project tendering and define operation and maintenance specifications
  • Negotiate performance guarantees and energy performance contracts
  • Establish measurement and verification programs for investments
  • Monitor project implementation and energy performance during operational phases
  • Ensure projects meet CAPEX, timeline, and technical specifications

Requirements

  • 1-2 years of work experience in a relevant field such as energy efficiency, engineering, advising, consulting, or executing projects related to energy efficiency and engineering, tendering, financial planning, or energy performance contracts.
  • Good financial understanding for assessment of project financial return.
  • Deep technical knowledge to generate value added solutions, including familiarity with CMVP, CEM, or ISO 50001 Lead Auditor certifications.
  • Excellent French and English language skills.

Benefits & Perks

Competitive remuneration package
Pension scheme contributions
Strong focus on personal and professional development
Sport and training opportunities
Assistance with relocation to the respective office location

Ready to Apply?

Join STX Group and make an impact in renewable energy

Stay Updated on Sustainability Jobs

Get the latest renewable energy jobs and career tips delivered to your inbox.

More jobs at STX Group

STX Group logo

Credit Risk Analyst

STX Group
NEW
Amsterdam
Full Time
2d
STX Group logo

Staff Software Engineer

STX Group
Amsterdam
Full Time
4d
STX Group logo

Sales Origination Specialist Environmental Commodities Australia

STX Group
Not specified
Full Time
6d

More jobs in Madrid, Spain

Celonis logo

Intern Volume Sales Analyst

Celonis
NEW
Madrid
Internship
22h
Celonis logo

Senior Cloud Security Engineer

Celonis
NEW
Madrid
Full Time
2d
Celonis logo

Sales Development Program Benelux market

Celonis
NEW
Madrid
Internship
2d