Principal Engineer (Full Stack)

Job Description: Job Title Principal Engineer (Full Stack) — Go / GCP / AI Location London Corporate Title Vice President Synthix is building a SaaS native marketplace of financial solutions—a tech first platform that plugs into client workflows and connects them to an ecosystem of partners (banks, PSPs, ERPs, and data providers) through a single integration. We combine institutional credibility and reach with startup level engineering agility. We are deliberately strengthening our engineering capability with inspirational, hands on technical leadership—people who ship, raise the bar on quality, and deliver enterprise grade reliability at fintech speed. This is a builder role. You’ll be a Principal level engineer who codes regularly, sets technical direction through doing, and helps scale a high performance product engineering culture. Your key responsibilities - Develop production ready features in Go, delivering robust backend services and APIs alongside full stack solutions spanning UI, data, performance, and operability - Establish and continuously improve engineering practices including service templates, libraries, developer experience (DX), and CI/CD pipelines - Provide technical leadership by clarifying architecture decisions, navigating trade offs, and defining clear “golden paths.” - Mentor engineers to improve code quality, system design, debugging skills, and readiness for production deployment - Drive reliability and operational excellence through improved observability, incident response, resilience (SLOs, error budgets, postmortems), and scalable delivery processes - Build AI driven features with measurable impact, focusing on evaluation, feedback loops, safety, cost controls, and practical AI patterns such as retrieval, workflow automation, copilots, and intelligent triage About us Deutsche Bank is the leading German bank with strong European roots and a global network. Click here to see what we do. Deutsche Bank in the UK is proud to be named in The Times Top 50 Employers for Gender Equality and has been awarded a Gold Award from Stonewall and named in their Top 100 Employers. We strive for a culture in which we are empowered to excel together every day. This includes acting responsibly, thinking commercially, taking initiative and working collaboratively. Together we share and celebrate the successes of our people. Together we are Deutsche Bank Group. We welcome applications from all people and promote a positive, fair and inclusive work environment.