Principal / Lead EngineerPython / Cloud / Terraform / IAM / DevOps / infrastructure-as-a-code IaCRate: Circa 600 - 700 PD (Outside IR35), 6 MonthsLocation: London / Hybrid x2 daysWe are seeking an experienced Principal / Lead Engineer to join a highly ambitious organisation building a large-scale, mission-critical data and technology platform. This is a unique opportunity to join at the earliest stages of a major programme and play a key role in shaping its technical foundations.Working closely with the CTO and a small team of senior engineers, you will lead the design and implementation of core infrastructure, establish engineering standards and practices, and make architectural decisions that will have long-term strategic impact.If you enjoy solving complex technical challenges, influencing technology strategy, and creating robust engineering foundations, this role offers an exceptional opportunity to make a lasting impact.Role and ResponsibilitiesTechnical LeadershipLead the design and implementation of foundational platform infrastructure and engineering capabilitiesDefine architectural patterns, engineering standards, and best practices that will guide future developmentPartner closely with the CTO and senior stakeholders to make and document key technical decisionsPromote secure-by-design principles across all aspects of platform developmentEstablish and maintain core engineering tooling, including source control, CI/CD pipelines, infrastructure-as-code, and automated ..... full job details .....