Senior HVAC Energy Optimisation Engineer - #2634829

Senior HVAC Energy Optimisation Engineer (all genders, full-time, Düsseldorf)

Help decarbonise buildings with AI and advanced HVAC optimisation

Join DABBEL and help shape the future of building operations

DABBEL is a climate tech company on a mission to decarbonise buildings worldwide.

Our AI-powered software helps commercial and industrial buildings reduce energy consumption, lower CO₂ emissions, and improve operational performance by optimising HVAC systems through predictive control and intelligent automation.

We are not a traditional engineering company. We combine HVAC expertise, software, data analytics, and artificial intelligence to create measurable impact for our customers.

We are looking for a Senior HVAC Energy Optimisation Engineer who wants to apply their technical expertise to real-world energy challenges and help customers achieve significant reductions in energy use and carbon emissions.

This role is ideal for someone with a strong HVAC background who enjoys solving operational problems, working directly with customers, and turning technical insights into measurable results.

Your Mission

• As a Senior HVAC Energy Optimisation Engineer at DABBEL, you will work directly with customers to improve building performance and reduce energy consumption.
• You will analyse HVAC systems, identify optimisation opportunities, support implementations, validate performance improvements, and help customers achieve their sustainability and operational goals.
• You will act as a trusted technical expert, working closely with facility managers, building operators, system integrators, and internal teams to ensure successful optimisation projects.

What You Will Do

• Conduct HVAC asset analyses and identify opportunities for energy and CO₂ reduction
• Review HVAC systems, building documentation, BMS architecture, and control strategies to uncover optimisation potential
• Analyse operational data and performance trends to identify inefficiencies and improvement opportunities
• Support the implementation of HVAC optimisation measures together with customers, facility teams, and service providers
• Troubleshoot HVAC, BMS, controls, and communication issues in operational buildings
• Validate optimisation results and support measurement and verification activities
• Prepare professional technical reports and recommendations for customers
• Conduct QA/QC reviews of optimisation implementations and performance results
• Work directly with customers throughout the optimisation lifecycle, from initial assessment through implementation and ongoing support
• Collaborate with software engineers, product managers, and data teams to continuously improve DABBEL's optimisation capabilities
• Support customer onboarding, technical workshops, and operational reviews
• Contribute practical HVAC expertise to the development of new products, services, and optimisation strategies
• Take ownership of projects and ensure high-quality technical delivery

What You Bring

• Degree in Mechanical Engineering, Energy Engineering, Building Services Engineering, or a related technical field
• 5+ years of experience in HVAC engineering, building operations, BMS, energy optimisation, commissioning, consulting, or related technical roles
• Strong understanding of HVAC system fundamentals and building operations
• Experience with commercial or industrial building HVAC systems
• Knowledge of Building Management Systems (BMS) and HVAC control strategies
• Experience analysing HVAC performance and identifying optimisation opportunities
• Understanding of central plant systems such as chilled water plants, heat pumps, district energy systems, thermal storage, or similar technologies
• Strong analytical and problem-solving skills
• Ability to work independently and take ownership of technical projects
• Experience preparing technical documentation and communicating technical concepts clearly
• Comfortable working directly with customers and stakeholders
• Professional working proficiency in English is required
• German language skills are considered a strong advantage, particularly for customer-facing activities within the DACH region, but are not mandatory
• Experience with energy audits, commissioning, retro-commissioning, IPMVP, ISO 50001, or energy performance verification is a plus
• Experience with data analytics tools such as Excel, Power BI, Python, or similar is beneficial

What Makes This Role Different

• This is not a traditional engineering role focused solely on design work.
• In this role, you will:
• Work on real buildings with measurable energy and carbon reduction targets
• See the direct impact of your work on customer outcomes
• Combine engineering expertise with operational problem solving
• Work closely with customers, software teams, and product development
• Contribute to one of the most important climate challenges of our time
• Gain exposure to advanced AI-driven building optimisation technologies
• Help shape the future of intelligent building operations
• Compensation and Incentives
• Salary: 60.000 € – 85.000 € per year depending on experience and qualifications
• In addition to base salary, this position participates in DABBEL's team bonus model. We believe in shared success, shared responsibility, and strong alignment around outcomes.

What We Offer

• The opportunity to work on one of the most relevant climate challenges: decarbonising the built environment
• A high-impact technical role with direct customer influence
• Strong ownership and autonomy
• Participation in our team bonus model
• A young, ambitious, and international team
• Exposure to cutting-edge AI applications in HVAC and building operations
• Professional growth opportunities within a fast-growing climate tech company
• The opportunity to help scale DABBEL across international markets

To Apply

Please submit:

• Your CV
• A cover letter
• LinkedIn profile
• Optional: relevant project examples, technical reports, or portfolios

Application Questions

Please describe your current role and responsibilities.

• How many years of experience do you have working with HVAC systems in commercial or industrial buildings?
• Have you been responsible for HVAC load calculations as part of your engineering work?
• Have you worked with Building Management Systems (BMS) and HVAC control sequences?
• Can you describe an HVAC optimisation project or energy-saving initiative you were personally involved in?
• How would you rate your English communication skills, both written and spoken?
• Do you hold a degree in Mechanical Engineering or a related engineering field?
• What is your earliest possible start date?

Job Type: Full-time

Pay: 60.000,00€ - 85.000,00€ per year

Application Question(s):

• Please describe your current role and responsibilities
• How would you rate your English communication skills, both written and spoken?
• Do you hold a degree in Mechanical Engineering or a related engineering field?
• What is your earliest possible start date?
• How many years of experience do you have working with HVAC systems in commercial or industrial buildings?
• Have you been responsible for HVAC load calculations as part of your engineering work?
• Have you worked with Building Management Systems (BMS) and HVAC control sequences?
• Can you describe an HVAC optimisation project or energy-saving initiative you were personally involved in?

Education:

• Bachelor's (Required)

Experience:

• HVAC/BMS, and consulting for large buildings: 5 years (Preferred)

Language:

• English (Preferred)
• Work Location: In person