Senior Full Stack Developer

Senior Full Stack Developer Internal Title: Senior Full Stack Developer Location: London, UK (Hybrid - typically 1-2 days per month in office) Contract: Permanent, Full-time OR Outside IR35 Contract, 6 months with view to extend Day Rate (contract): £500-550 per day Package (perm): £70,000 - £80,000 + 10% Bonus + 10% Shares + Benefits (see more below) About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer experience. We work across complex, high-impact environments in both the public and private sector, delivering solutions where quality, scalability, and reliability are critical. About the Role We’re hiring multiple Senior Full Stack Engineers (Java / TypeScript) to join a growing Software Engineering practice supporting a major modernisation and AI-enabled transformation programme. This is a hands-on, client-facing role where you’ll help design and deliver modern software solutions in complex environments. You’ll be working on what is effectively a greenfield build within a brownfield ecosystem, introducing new architecture, tooling, and engineering standards to enable long-term scalability and resilience. You will report into a Principal Software Engineer, contributing both to day-to-day delivery and the continued growth of Appvia’s software engineering capability and technical direction. Interview Process - 3 Stage Discovery conversation with Talent Acquisition Technical Interview with Engineering Team Final Interview with Leadership Important - for Permanent applications: You must be eligible for UK Security Clearance (SC) : British Passport or ILR Resided in the UK for the last 5 years No criminal record or financial irregularities