Principal Software Architect

Principal Software Architect - UK Security Clearance eligibility required.

Location: London, UK - Hybrid (~1-2 days per month in office / onsite)
Contract: Permanent, Full-time
Package: £80,000-100,000 + 10% bonus + 10% shares options + benefits

About Appvia

At Appvia, we help organisations modernise how they build and operate software. We are a specialist platform engineering, software, and AI enablement consultancy, delivering resilient, scalable systems that help teams move faster while maintaining quality, security, and reliability.

Our work spans cloud platforms, developer experience, modern application delivery, and AI-assisted engineering practices. We partner with customers across public and private sectors to reduce technical debt, improve engineering standards, and evolve complex systems using modern software engineering approaches.

Since the start of 2026, our Software Engineering practice has grown rapidly into a dedicated team supporting large-scale modernisation programmes across public and private sectors, and we’re continuing to invest heavily in growing the capability further.

About the Role

As a Principal Software Architect, you will be the architectural voice within our software engineering engagements: owning solution design, shaping technical direction, and constructively challenging both the business and technical architecture of the systems we help modernise.

Domain Driven Design sits