Sustainability Manager - Sustainable Fuels (Marine Fuels)
ISCC - International Sustainability and Carbon Certification
Company Overview
ISCC - International Sustainability and Carbon Certification
Cologne, Germany
2010
Approximately 50-100 employees (source: linkedin.com). No public revenue figures are available as it is a privately held company.
What They Do
ISCC (International Sustainability and Carbon Certification) is an independent certification system focused on verifying sustainability, traceability, and carbon reduction in supply chains. Unlike direct energy producers such as solar or wind farms, ISCC certifies various raw materials, including agricultural biomass, forestry products, biogenic waste, and recycled carbon materials. The main products and services include ISCC EU, ISCC PLUS, ISCC CORSIA, and ISCC CFC, all aimed at compliance with sustainability standards across various sectors (source: iscc-system.org). Target markets include EU-regulated biofuels, the chemical industry, plastics, and the food and feed market, with ISCC operating in over 100 countries.
Projects & Track Record
ISCC does not conduct projects itself but certifies numerous initiatives in the supply chain. Notable completed certifications include the first ISCC certification in 2010 and the certification of over 1,000 Canadian farmers by 2022. Other significant certifications include the renewable diesel production of a German biodiesel manufacturer from used cooking oil and a biodiesel processing facility in Southeast Asia (source: iscc-system.org). Current efforts focus on CORSIA SAF certifications, with 14 CORSIA certificates and 138 for HVO (hydrotreated vegetable oil) up to the latest audits.
Recent Developments
In the past two years, ISCC has introduced new product logos and a licensing system, formed technical committees for circular economy and sustainable aviation fuels, and gained recognition for biofuels in Queensland (Australia). Additionally, ISCC supports compliance with the EU Deforestation Regulation (EUDR) with appropriate tools (source: iscc-system.org). No major acquisitions or mergers have been reported, as ISCC operates under an association structure that ensures continuous development and recognition by the EU.
Working There
ISCC offers positions primarily in certification, technical standards, system monitoring, and training. The main departments include technical committees, accreditation support, and greenhouse gas calculation verification. Hiring mainly occurs at the headquarters in Cologne, with international auditor positions also available, as ISCC operates in over 130 countries (source: linkedin.com). The company culture emphasizes collaboration among various stakeholders and transparency in the certification processes.
Last updated on Feb 23, 2026 | Report an issue
Job Description
ISCC - International Sustainability and Carbon Certification is one of the leading certification systems for global sustainability, traceability and the reduction of greenhouse gas emissions. Our activities and impact are expanding and our teams are growing exponentially since the last 3 years.
To further strengthen our Aviation & Maritime activities, we are looking forward to welcoming you as Sustainability Manager - Sustainable Fuels (Marine Fuels) at ISCC headquarters in Cologne.
In this role, you will be responsible for developing, maintaining, and improving ISCC certification schemes and systems relating to Alternative Marine Fuels (AMF). You will work closely with international stakeholders across the maritime sector and contribute to advancing sustainable fuel solutions in line with evolving regulatory and market requirements.
If you are passionate about sustainability and would like to join a culturally certified Great Place to Work® company with highly motivated and diverse teams making a real difference, we look forward to your application!
Your main duties will be:
- Leading the development, maintenance, and continuous improvement of ISCC schemes for Alternative Marine Fuels (AMF), ensuring alignment with evolving legislation, market requirements, and international standards
- Providing technical expertise on AMF pathways to support scheme development, audit procedures, and system documentation
- Monitoring global regulatory frameworks for sustainable marine fuels and assessing their implications for ISCC certification schemes
- Developing proactive responses and certification solutions to address emerging regulatory requirements, including FuelEU Maritime, EU ETS, IMO frameworks, and other relevant initiatives
- Researching and further developing chain of custody methodologies and systems for alternative marine fuels, including mass balance and book-and-claim approaches
- Building and maintaining strong relationships with stakeholders across the maritime sector, including fuel producers, suppliers, traders, ship operators, port authorities, policymakers, and regulatory bodies
- Proactively identifying opportunities for collaboration, market development, and enhancement of ISCC activities
- Designing, developing, and delivering training programmes for certification bodies, auditors, system users, regulators, and other stakeholders
- Representing ISCC at conferences, industry events, stakeholder workshops, webinars, and meetings as a subject matter expert on alternative marine fuels
- Developing presentations, technical papers, guidance documents, and other thought leadership materials for the marine fuels sector
Your profile
- University degree in environmental sciences, law, policy, economics, business management, natural sciences, or a related field
- Min. 3 years of professional experience after graduation, with at least 2 years in a relevant industry, such as a certification organization, sustainability scheme, fuel producer or trader, shipping company, or stakeholder association
- Proven background in sustainable and alternative fuels (e.g. marine fuels, biofuels) or conventional fuels
- Proven experience in marine fuel operations such as fuel infrastructure, trading, bunkering and/ or vessel operations
- Understanding of sustainability certification systems and relevant regulatory frameworks (e.g. FuelEU Maritime, IMO CII, MARPOL, EU RED)
- Familiarity with voluntary market frameworks applicable to the marine sector such as SBTi and GHGP
- Knowledge of chain of custody methodologies (e.g. Mass Balance, Book & Claim) and product supply operations
- Proven ability in stakeholder engagement, external communications, and public speaking
- Experience in client relationship management or similar stakeholder-facing roles
- Strong communication, organisational, analytical, and independent working style
- Excellent English language skills (at least C1, written and spoken)
Why us?
We are an international and diverse team of passionate and experienced experts, joining forces for a sustainable future! We believe that our team is our core asset and we support our people as best we can.
To help you build your future and thrive with us, we offer:
Great Team Environment
- Various team events throughout the year (Celebrating Diversity, Summer Team Event, Christmas Party)
- Close collaboration with our sister companies Meo Carbon Solutions GmbH, GRAS Global Risk Assessment Services, 4C Services, ClimatePal, and TYC
- The opportunity to work independently and shape processes
Individual learning and development plan
- Professional onboarding to help you have an ideal start with us
- Frequent feedback sessions to ensure a high quality of communication and mutual reflection
- Many free language classes
- Access to several trainings as well as specific technical courses
- We promote from within!
Work-Life Balance
- Hybrid set-up
- 4 weeks remote work at a place of choice (after probation)
- Flexible working hours and trust based working time
- 30 vacation days and 3 additional vacation days (Christmas Eve, New Year's Eve, Carnival Monday)
- Sabbatical options
Financial benefits
- A generous pension scheme (bAV) in line with our sustainability values
- JobTicket/Deutschlandticket
- Annual bonus scheme based on performance
Wellness Programs
- Subsidized Urban Sports Club
- Health weeks promoting healthy habits in personal and professional life
Ready to join our team?
Then we would be happy to hear from you soon! Please apply via the button below with a meaningful cover letter, CV and any relevant certificates.
We are looking forward to your application and hope to welcome you in our team soon!
We are a company with equal opportunities for everyone and encourage applications from all suitably qualified candidates regardless of age, race, gender or any other criteria that is not a professional qualification for an open position.
Apply now
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Apply now
Job expired?Please let ISCC - International Sustainability and Carbon Certification know you found this job on Rejobs. It helps us grow and get more people working in renewable energy.
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About the role
June 10, 2026
Full time
Company
ISCC - International Sustainability and Carbon Certification
- Cologne, Germany
Min. 3 years of professional experience
UTC+01:00