Oslo, Norway · Flexible start · Min. 1 month · Internship At OptiFish, we're on a mission to transform the global aquaculture industry using AI and mathematical optimization. The world needs more sustainable protein, and fish farming is one of the most promising ways to produce it — but the planning and operations behind modern farms are staggeringly complex. We're building the intelligence layer that helps farmers make better decisions, produce more with less, and ultimately feed more people sustainably. As part of our team, you'll work with smart, passionate people who care deeply about impact. Whether you're training models, building interfaces, or solving hard optimization problems — your work will directly shape how one of the world's fastest-growing food industries operates. Read on to find out what part you could play in our story. What you'll do- Build and ship production code from your first week- Work across the stack — frontend, backend, AI/ML, or optimization, depending on your strengths- Tackle real industry challenges, not made-up exercises- Have genuine ownership and influence over technical decisions Who you are- You love building things from scratch and learn fast- You have high drive and thrive in fast-paced environments- You want to work on real problems with real customers Relevant backgrounds- Software development (frontend / backend)- AI / Data Science- Mathematical optimization- Design You don't need to know it all — attitude > CV. We welcome applicants from diverse backgrounds and perspectives. What we offer- Competitive compensation- Flexible start date and duration (min. 1 month)- Possibility for part-time work or a permanent role afterwards- A seat at the table in a well-funded, fast-growing startup