Solution Architect (Remote - Work from Anywhere)

Position Overview

We’re looking for a Solution Architect to join our engineering function, reporting directly to the CTO. At Xapo, we are building truly cross-functional teams with full ownership of design, architecture, building, testing, delivery, data, and operations, structured as Stream Aligned Teams (SATs), Platform teams and Enabling teams as per Team Topologies. You will collaborate closely with engineering leaders and the SRE function, as well as fellow members of the product, apps, and design.

This is a deeply hands-on role. You will not sit on top of an ivory tower drawing boxes and arrows, you will write code, build production-grade Proofs of Concept and demonstrate what good looks like by example. You will own the Architectural Advice Forum (AAF), facilitating decentralised architectural decisions captured as ADRs without becoming a bottleneck or single point of approval.

You will be the CTO’s partner on AI strategy, drive standardisation across backend, web and mobile engineering, and work closely with our SRE team on reliability, observability and platform concerns.

This is an opportunity to shape how a regulated crypto bank designs, builds and operates software, having a real impact on how the future of finance looks.

Responsibilities

• Own and facilitate the Architectural Advice Forum (AAF), driving decentralised decision-making that is captured as ADRs.
• Personally build production-grade Proofs of Concept to de-risk new patterns, validate architectural ideas and demonstrate what good looks like ahead of broader adoption.
• Partner with the CTO on Xapo’s AI strategy, identifying high-value opportunities, evaluating tooling, prototyping solutions and helping engineering teams adopt AI responsibly.
• Own cross-cutting standardisation across backend, web and mobile engineering, patterns, paradigms, observability, security, testing and delivery.
• Define and uphold the engineering quality bar across backend, web and mobile, covering testing, code review, observability, security, performance and production-readiness.
• Embed Security-First Architecture across everything we build, setting threat-modelling, secure-by-default and defence-in-depth patterns.
• Champion Domain-Driven Design and Event-Driven Architecture as foundations for modelling our domain and evolving our systems.
• Work closely with the SRE team on reliability, capacity, incident response, observability and the evolution of our platform.