In many tech organisations, the wall between product and engineering is still very real. Product Managers define the “what” and Engineers deliver the “how” – but this separation stifles innovation, delays delivery, and leads to mismatched expectations. In this talk, James Charlesworth shares lessons from leading cross-functional teams at scale, and shows how to foster true collaboration between product and engineering. You’ll learn how to develop product sense as an engineer, encourage technical fluency as a product manager, and create a shared sense of ownership that drives better decisions, faster execution, and stronger outcomes. Whether you’re in product, design, or engineering, this talk will give you a practical roadmap for building teams that work together, not just alongside each other.