AI Engineer

Listed as a remote role based in Copenhagen, Capital Region of Denmark, Denmark. Build the Next Generation of AI at the Intersection of Neuroscience & Marketing At Neurons , we help the world’s leading brands predict how people will perceive, feel, and react to creative; before it goes live. By combining AI, neuroscience, and proprietary biometric data , we’re reshaping how decisions are made in marketing, product, and design. We’re now looking for an Mid-to-Senior AI Engineer to play a key role in defining and building the next generation of our AI capabilities. This is a hands-on, high-impact role for someone who enjoys owning complex systems end to end and turning cutting-edge research into production-ready solutions. The Mission Your success in this role will be measured by your ability to design, build, and operate robust AI systems that scale in production , unlock insights from unique data, and materially improve the Neurons platform. You won’t just ship models; you’ll help shape how AI is used across the product. What You'll Be Responsible For Own Production-Grade AI Systems You’ll lead the architecture, design, and implementation of complex AI solutions used in production. This includes end-to-end ownership of multi-process workflows that combine generative AI, agentic systems, and multi-modal models to power new product capabilities. Build & Operate ML Models End to End You’ll own the full lifecycle of machine learning models built on Neurons’ proprietary biometric, neurometric, and psychometric datasets ; from data preprocessing and feature engineering to training, validation, deployment, monitoring, and iteration. Drive Scalable Platform Integration Working closely with Product, Engineering, and Data teams, you’ll ensure AI solutions are seamlessly integrated into the platform, meeting high standards for scalability, resilience, and performance. Raise the Engineering Bar You’ll act as a technical leader within the AI team; mentoring junior engineers, promoting best practices in software engineering and MLOps, and helping shape how we build and maintain AI systems over time. Stay at the Edge of Innovation You’ll continuously evaluate and prototype emerging techniques in generative AI, agentic workflows, and computational neuroscience , bringing the most promising ideas into production to maintain Neurons’ competitive edge. What Success Looks Like In This Role Success means delivering AI systems that are reliable, explainable, and trusted in production. Models are well-validated, monitored, and continuously improved. Complex workflows are understandable and maintainable. Cross-functional teams rely on your solutions to ship product improvements faster. Over time, your work meaningfully expands what Neurons’ AI can do, and how confidently it can do it. What You Bring 2–5+ years of experience building and deploying machine learning models in production Strong Python expertise and hands-on experience with PyTorch, TensorFlow, and/or Scikit-learn Proven experience designing and deploying generative AI systems in production, including: - Agentic or multi-process workflows - Multi-modal or LLM-based systems - Thoughtful evaluation and validation approaches Solid grounding in MLOps, including Git, Docker, CI/CD pipelines, and cloud platforms (GCP strongly preferred) Experience designing or consuming REST APIs; familiarity with Infrastructure as Code (e.g. Terraform) is a plus A strong commitment to clean, maintainable, well-tested code Excellent problem-solving skills and comfort working with ambiguity A Bachelor’s or Master’s degree in Computer Science, Data Science, Engineering, or equivalent practical experience Your Impact You collaborate naturally across disciplines and care about building things the right way, not just quickly. You take initiative, enjoy ownership, and aren’t afraid to tackle complex problems with minimal direction. You’re curious by default, eager to learn, experiment, and push the boundaries of what AI can do; and you communicate clearly with both technical and non-technical teammates. Join the Neurons Movement! In our inclusive culture, innovation flourishes. We believe true progress comes from being yourself, sharing ideas freely, and collaborating with inspiring colleagues. So if you're all about the above, come help us redefine consumer neuroscience! Innovation at our Core: Our 11-year legacy began with neuroscientist and bestselling author, Dr. Thomas Zoëga Ramsøy, a leading figure in the fields of applied neuroscience, consumer neuroscience, and neuromarketing. Innovation continues to drive everything we do, from our CEO to each and every team member, we push boundaries and foster forward-thinking, leveraging data and AI to transform our industry. Team Spirit and Culture: We’re committed to fostering a culture that values teamwork and personal growth. Building something extraordinary requires effective collaboration and top talent. So why not surround yourself with a supportive team that drives success! Results with Empathy: We’re focused on achieving results while also prioritizing empathy. Join a culture that balances ambition with consideration and where continuous feedback on performance and development is encouraged. Here, success is measured not just in numbers, but in relationships, collaboration, and positive impact. Diverse and Inclusive: Our team of 85 talents from 30 nations proudly celebrates diversity. By embracing diversity and individual development, we believe that we can achieve sustainable growth and remain committed to fostering a culture where people of all backgrounds feel welcomed. At Neurons, the journey is as exciting as the destination. Experience a career where innovation, teamwork, and meaningful results come together in ways you've never imagined! We Offer An Array Of Benefits We’re all about keeping our people happy, healthy, and feeling their best. From wellness-focused perks to little moments of everyday care, we make sure you have plenty of ways to recharge and stay balanced. And because we truly enjoy each other’s company, we love getting together for some end-of-week fun. Whether we're laughing, socializing, or just unwinding as a team, our Friday hangouts always bring good vibes and great company. Other Benefits Include In-house lunch Pension Plan Private Health insurance Parental leave benefits Quarterly company events Team Events Show more Show less Seniority level Not Applicable Employment type Full-time Job function Analyst and Engineering Industries Internet Marketplace Platforms, Technology, Information and Internet, and Information Services