Outside Spy
London Area, United Kingdom
Tech Lead / Principal Engineer – Contract Location: London Canary Wharf – 4 days onsite (no flex) Start Date: 2nd November 2026 Duration: Initial contract until 24th December, with potential extension Outside IR35 - rate depending on experience We're looking for an experienced Tech Lead / Principal Engineer to support a major financial services engagement with one of our consultancy partners. This is a senior, client-facing technical role, focused on solution architecture, systems integration and technical leadership across complex mobile and backend platforms. You'll be joining a fast-paced project, working closely with engineering teams and senior stakeholders to understand existing technology landscapes, identify architectural gaps and shape scalable, secure technical solutions. The Role Lead solution architecture and technical design across mobile applications, backend services and integrations. Assess existing systems, map technical...