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ISCC – International Sustainability and Carbon Certification is one of the leading certification systems for sustainability, traceability and the reduction of greenhouse gas emissions. As international activities grow rapidly, ISCC is expanding its Certification Team to ensure high-quality certification processes across all system areas - including the increasingly important field of Sustainable Aviation Fuels (SAF).


To strengthen our team, we are looking for a Junior Sustainability Certification Manager – with focus on ISCC CORSIA to join our headquarters in Cologne. In this role, you will play an important part in supporting the integrity and quality of the ISCC CORSIA certification scheme.


If you are passionate about sustainability and would like to join our highly motivated and diverse teams to make a difference, we are looking forward to your application!


Your Main Duties Will Be


  • You will review certification documents for completeness, accuracy, and plausibility to ensure compliance with ISCC CORSIA requirements
  • You will efficiently manage inquiries from system users (e.g., Certification Bodies, auditors, and companies) via email and phone
  • You will conduct internal data analysis, including auditor data, certification material, and producing countries
  • You will support administrative tasks such as registration terminations and invoicing
  • You will actively contribute to the further development of ISCC activities within the Sustainable Aviation Fuels sector, with a strong focus on ISCC CORSIA
  • You may additionally take ownership of specific topics, such as: Nabisy support, updates to review manuals, SOP updates


Your profile


  • University degree in agriculture, forestry, environmental or sustainability studies, alternatively business management, or a similar field
  • First practical experience (e.g., internship or working student position) is a strong plus, especially in the field of certification; technical background is highly beneficial
  • Very good communication skills and strong intercultural competence, with a service-oriented mindset and high reliability
  • Strong organisational abilities, excellent attention to detail, and very good analytical thinking
  • Ability to work independently while contributing to team success; proactive, structured, and solution-oriented working style
  • Excellent English and German language skills (at least C1, written and spoken)
  • Very good PC, MS Office and database skills, combined with strong overall IT proficiency


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 and ClimatePal, giving you even more development opportunities


Individual learning and development plan

  • Professional onboarding to help you have an ideal start with us
  • Frequently feedback sessions to ensure a high quality of communication and mutual reflection
  • Many free language classes
  • Access to several technical specific as well as training courses
  • The opportunity to work independently and shape processes
  • 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
  • Active Break scheme with weekly Yoga sessions
  • 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.


About Us


ISCC – International Sustainability and Carbon Certification is a globally applicable and leading certification system designed to enhance traceable, sustainable, deforestation-free, and climate-friendly supply chains. ISCC certifications are widely recognised and cover sustainable agricultural biomass, biogenic wastes and residues, non-biological renewable materials and recycled carbon-based materials. The development and implementation of different certification standards is ISCC’s tool to promote its mission to mitigate climate change and bring more traceability into global markets and supply chains. To date, ISCC holds more than 11,300 valid certificates in 129 countries.


Our close-knit team of dedicated, supportive, and highly motivated professionals at ISCC come from a variety of backgrounds, which contributes to the diverse and dynamic work environment. We all work together with a shared enthusiasm for sustainability and a common objective. We look forward to having you join our team at the ISCC headquarters in Cologne if you think we are a good fit for you.