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Nachhaltigkeitsmanager

FitX • Germany • Added on Oct 21, 2026
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This role puts you at the centre of FitX’s sustainability work, advising management on priorities, running cross-department projects and handling the data behind its sustainability reporting. You also track regulatory changes, coordinate with legal and other teams, and develop the company’s management systems, particularly DIN EN ISO 50001, including internal audits.

FitX operates more than 110 fitness studios and employs over 3,500 people, so sustainability here means reducing the environmental footprint of a large, growing estate while keeping the business compliant with tightening EU rules. The reporting and ISO 50001 work is not a side task: it is the backbone that lets the company measure progress and act on it.

This suits someone who has 2 to 3 years in sustainability management, is comfortable with data and standards, and enjoys translating technical requirements into language that operations teams can use.

Job FAQs

What are the main missions and responsibilities of this role?

The core mission is to shape and advance FitX's sustainability strategy while keeping the company compliant and transparent. As a strategy partner, you advise management on which topics to prioritise and develop goals and measures. As a project driver, you coordinate stakeholders across departments to move sustainability initiatives forward. You also act as a reporting expert, collecting and analysing data to produce transparent sustainability reports. A significant part of the role involves tracking regulatory developments and assessing their impact, working closely with legal. You guide the development of management systems, particularly DIN EN ISO 50001, and support internal audits and follow-up actions. Finally, you help other teams understand and integrate sustainability requirements into their daily work.

Key learning opportunities for this job

You can expect to deepen your knowledge of sustainability reporting standards and data tools, since the role involves hands-on reporting work. The ISO 50001 focus offers a chance to gain practical experience with energy management systems and internal audits, which are valuable certifications and skills in the field. Working closely with management on strategy will sharpen your ability to advise senior leaders and prioritise actions. Because FitX is growing, you may also learn how to scale sustainability processes across a large estate. The role provides exposure to regulatory monitoring and cross-department collaboration, building a well-rounded sustainability management skill set.

How does the ideal candidate look like (experience, skills)?

The ideal candidate has 2 to 3 years of experience in sustainability management, preferably in a company-wide or cross-functional role. A degree in economics, industrial engineering, environmental sciences or a related field is expected, ideally with a sustainability or environmental specialisation. You should be familiar with common sustainability standards and confident in reporting and data-based software. Knowledge of DIN ISO management systems, especially ISO 50001, and experience with internal audits are important. Project management skills are essential, as you will steer challenging projects and bring different interests together. Soft skills like communication, stakeholder coordination and the ability to simplify complex topics for non-experts are also key.

Advice to stand out and make a successful application

Tailor your application to show concrete experience with sustainability reporting and ISO 50001, since these are named requirements. Highlight projects where you coordinated multiple stakeholders and delivered results, ideally in a company-wide context. Mention familiarity with data tools and standards you have used. In your cover letter, explain why FitX's scale and growth make sustainability management interesting to you, and how you would approach the dual challenge of strategy and compliance. Prepare for interviews by thinking through how you would prioritise competing demands and communicate regulatory changes to non-experts. Understanding FitX's business model and its environmental footprint will help you stand out.

What aspects of the company's sustainability is this role likely to focus on?

The role centres on environmental management and compliance. FitX operates over 110 studios, so energy consumption, facility efficiency and the ISO 50001 management system are likely core areas. You would also work on sustainability reporting, which means gathering data on emissions, energy use and possibly social metrics, and aligning it with recognised standards. Regulatory monitoring is another pillar: tracking EU and German sustainability rules that affect a company of FitX's size and sector, then advising on how to respond. Certification and audit support round out the focus, ensuring the company maintains and improves its management systems.

What are the main challenges someone in this role might face?

One challenge is the breadth of the role: strategy, reporting, regulation, certification and internal advisory all sit with one person, so prioritisation and time management are constant. Another is influencing colleagues who may not see sustainability as part of their job, especially in a fast-growing fitness company where operational demands are high. The regulatory environment is also shifting, and keeping up with changes while translating them into practical actions for FitX requires both analytical rigour and clear communication. Managing data quality across many studios and systems could be another hurdle, as reporting depends on reliable figures from various sources.

How could a typical day look like for someone in this position?

A typical day likely starts with checking regulatory updates and emails from legal or operations teams. You might spend the morning reviewing energy data or preparing figures for the sustainability report, then join a project meeting with studio operations or facility management to discuss ISO 50001 measures. After lunch, you could have a session with management to prioritise actions or a workshop with a department that needs help understanding a new requirement. The mix shifts depending on the reporting cycle: during audit preparation or reporting deadlines, the work becomes more data-heavy and detail-oriented, while other weeks lean toward strategy and stakeholder coordination.

What are the opportunities for professional growth and development in this role?

As the role covers strategy, reporting, regulation and certification, it offers a broad platform to develop into a more senior sustainability leadership position. Success in building the company's reporting and ISO 50001 systems could lead to expanded responsibilities or a team lead role as FitX grows. You might also specialise further in areas like ESG reporting or energy management, or move laterally into operations, legal or strategy functions. The high visibility with management means strong performance could open doors to larger projects or cross-functional initiatives. FitX's growth trajectory suggests that sustainability will remain a priority, creating room for advancement.

The main stakeholders you might be interacting with

You will interact regularly with FitX's management team, acting as an advisor on strategy and priorities. Legal colleagues are key partners for regulatory monitoring, and you would coordinate closely with them on compliance questions. Operations and facility teams, especially those managing studio buildings and energy use, will be central to ISO 50001 work and data collection. You might also work with external auditors or certification bodies during internal and external audits. Other departments across the headquarters in Essen and the Monheim office will need your support to embed sustainability requirements, so relationship-building and clear communication are part of the daily routine.

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