A mission-led consultancy in the UK seeks an experienced Principal Software Engineer (Java) to lead the design and development of secure, scalable software solutions. The role requires deep Java expertise, team leadership, and a passion for engineering best practices. Ideal candidates will engage with stakeholders and contribute across the full software development lifecycle. In return, the company offers flexible working hours, a development budget, healthcare, and clear career progression opportunities. #J-18808-Ljbffr