Senior Software Engineer Central London £85,000 plus 10% bonus and benefits 2 days in the office This is a chance to step into a senior, hands on engineering role where you can influence how complex, revenue critical platforms are designed and built. You will play a key part in shaping modern digital products, working closely with experienced leaders and helping to raise engineering standards across the team. The Company They are a well established media and advertising organisation operating at scale across the UK and Europe. The business builds and runs digital platforms that support large, data driven advertising campaigns for a wide range of partners. With significant investment in technology and a growing engineering function, they are focused on modernising their platforms and improving how products are delivered and scaled. The Role Design and build scalable, reliable backend and frontend systems that support internal products used to manage advertising campaigns end to endAct as a senior technical voice within the team, guiding design decisions and challenging the "why" behind solutionsCoach and support a small group of developers through code reviews, technical guidance, and collaborative problem solvingWork closely with product, architecture, and UX to ensure systems are well thought through and fit for purposeContribute to improving system architecture, performance, and long term maintainabilityTake ownership of how problems are approached, prioritised, and solved,