Data Engineer & Scientist(m/w/x)

## Data Engineer & Scientist (f/d/m) ###### Permanent employee, Full-time ·Berlin,Portugal (Home Office) --- ##### THE ROLE Are you ready to make a **real impact**? Are you excited by the opportunity to grow your coding skills while unlocking climate action for enterprise organizations? Then join CEEZER and help companies across the globe to leverage a truly **impactful solution** that is finally fixing how companies get to net-zero using the voluntary carbon market and data-led insights. Use your skills to tackle one of the most critical challenges humanity has ever faced: climate change. We are looking for a versatile **Data Engineer & Scientist (f/d/m)**, who will play a key role in structuring and operationalizing our data, enabling teams to access insights and tools without relying on spreadsheets or manual workarounds. ##### YOUR MISSION * Own, design, implement, and maintain data pipelines using Python (and Airflow). * Explore and implement use cases with large language models (LLMs) to improve data workflows and automation. * Structure and optimize our data lake and warehouse environments. * Integrate and manage data in AWS using S3 and Lambda. * Support the migration from Google Sheets to scalable and automated data systems. * Build internal data interfaces using low-code or no-code tools, enabling non-technical users to input and retrieve data easily. * Collaborate with product, engineering, and operations to understand data needs and co-design solutions. ##### WHAT YOU NEED TO SUCCEED * Strong Python skills for data processing and automation, knowledge of Airflow is a plus. * Excellent SQL proficiency. * Experience working with LLMs: * Implementation of OpenAI APIs for data automation and enrichment. * Prompt engineering for dynamic queries and natural language interfaces. * Experience with model evaluation and fine-tuning is a plus. * Proven track record in building and maintaining data lakes or similar architectures in a cloud environment. * Experience in analysing and modelling risk data sets is a plus. * Ability to lead projects with multiple stakeholders. * Excellent oral and written communication skills in English. * A valid working permit in Germany. ##### WHAT’S IN IT FOR YOU AT CEEZER * **A mission that matters:** Join a rapidly growing, dynamic team of international changemakers who are passionate about solving the world’s most pressing challenge and help shape a sustainable, net-zero future. * **A learning culture**: Take your skills to the next level with exciting growth opportunities, hands-on learning experiences, and access to resources designed to fuel your professional journey in a start-up that prioritizes learning and growth. * **A diverse environment:** Thrive in an inclusive environment where diversity is celebrated, and your unique perspective helps us flourish as a team. * **A net-zero career**: From day one, your professional and personal carbon footprint is neutralized—because at CEEZER, sustainability isn’t just our mission, it’s how we operate. * **An attractive package**: Enjoy perks like free Urban Sports Club membership, a discounted public transport, a company pension scheme, team events and offsites,  and more… ##### EXCITED TO CREATE IMPACT WITH US? If you don't meet every requirement but have **exceptional strengths** that could make you **excel in this role**, we'd love to hear from you. We prohibit discrimination or harassment of any kind and make employment and other employee lifecycle decisions based solely on merit, skills, and potential. We actively work to recognize and address unconscious biases, fostering an environment where all individuals feel valued and empowered to succeed. We welcome **diverse applicants** and are dedicated to providing **equal opportunities** for everyone to thrive. Please let us know if you have any specific needs regarding this application process.