Software Architect – Java | DDD | TypeScript

The role: Principal Software Architect (Domain-Driven, Delivery-Focused)

Who: Appvia.io

Where: London (hybrid working (1-2 days per month at a minimum)

What you get: £80-100k DOE + 10% Bonus + 10% share options

Appvia is a cloud, platform and software engineering consultancy doing serious work, and we need a Principal Software Architect who has genuinely led domain discovery, owned solution design end-to-end, and delivered microservice architectures where service boundaries actually come from the domain, not from a diagram drawn in a workshop.

You’ll need to bring:

• Real, hands-on DDD experience: strategic and tactical patterns applied to complex systems in production. Not theory, not advisory, but actually done it.
• Proven leadership of domain discovery with business stakeholders: Event storming, domain storytelling, or equivalent. You drive the room, you don’t just facilitate it.
• End-to-end architectural ownership: ADRs, C4, defending decisions at senior stakeholder level with confidence.
• Strong full-stack delivery capability: Java / Spring Boot as your core, TypeScript / React alongside it. You’re still close enough to the code to be credible with engineers.
• A consulting mindset: you translate messy business problems into clean technical solutions, not the other way around.
• Experience growing architectural thinking across a team: mentoring engineers, raising the bar, leaving things better than you found them.

Core stack:

• NoSQL / SQL
• GitLab
• Maven
• AWS
• Playwright

Nice to have:

• GovUK UI Framework
• .NET

Before you apply, please read this:

This role requires SC Clearance eligibility. That means British Passport or ILR, 5 years continuous UK residency, clean financial and criminal record – this is non-negotiable. Candidate relocation and visa sponsorship are not available.

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