Engineer (Platform Architecture) in Cardiff

Prodigi is the leading global print‑on‑demand platform enabling businesses to scale their operations through streamlined supply chains and maximised profits. Founded in 2014, we ranked 14th on the Sunday Times Virgin Atlantic Fast Track 100 list of the UK’s fastest‑growing companies. With a worldwide network of over 50 production facilities across 10 countries, including our own production facilities, we support creators, enterprises and increasingly AI‑driven agents who expect a system that can take any image, turn it into any product and fulfil it anywhere in the world.

About the role

We’re hiring a senior technical leader to shape the architecture of Prodigi’s core platform. You’ll work hands‑on in C# / .NET while defining the structures, service boundaries and system patterns that support our next‑generation product: an API‑first unified product creation management and publishing engine. Your work will directly influence how all merchant integrations and AI agents interact with Prodigi. You’ll focus on correctness, robustness, data integrity and long‑term simplicity across systems that underpin millions of orders. This is a role for someone who wants architectural responsibility, not just feature delivery.

What you will do

• Shape the foundations of a platform used by thousands of merchants and numerous integrations, influencing our shipping engine, global routing logic, product creation pipelines, image processing, migration away from legacy stacks and the evolution of our public API.
• Define and evolve the architecture for our unified product and fulfilment platform.
• Lead the technical design of new versions of our public API: domain boundaries, event flows, versioning, service interactions.
• Shape internal service design: caching, messaging, error handling, consistency, observability.
• Design and implement backend services in C# / .NET that handle product modelling, shipping logic, routing and image/asset flows.
• Improve the robustness, clarity and consistency of core data models.
• Enable the product vision by translating strategic goals into clear architectural direction for engineering.
• Work closely with Product to ensure designs scale across product creation, publishing and multi‑channel integrations.
• Mentor engineers and set technical standards for the wider team.
• Improve quality and resilience, reduce complexity by refining and refactoring legacy components.
• Establish patterns that lower defects and operational overhead.
• Enhance logs, metrics, diagnosis and reliability across APIs and internal systems.

Qualifications

• Strong architectural capability and deep experience designing and building distributed systems.
• Ability to define domain models and service boundaries for complex transactional platforms.
• Experience modernising or consolidating systems into clean, long‑lived architectures.
• Strong grasp of eventing, queues, async flows and API design.
• Hands‑on technical depth: expert‑level C#.
• Strong understanding of cloud services (Azure preferred).
• Solid SQL and data modelling.
• Comfortable building, testing and operating production services.
• Engineering leadership – ability to set direction and provide technical mentorship.
• Confidence to challenge assumptions and propose simpler architectures.
• Ownership mindset in complex environments.

Nice to have

• Experience in e‑commerce fulfilment, logistics or multi‑tenant platforms.
• Experience building image‑driven or asset‑driven products.
• Familiarity with event‑sourcing, DDD or service‑oriented design.
• Interest in generative‑AI driven commerce integrations.

What we offer

• Competitive salary (dependent on experience).
• 25 days holiday per year plus one additional day off for your birthday.
• Company pension scheme (4% employer contribution, 5% employee contribution).
• Healthcare cash plan.
• Spec your own development machine.
• A charity day per year to volunteer at a recognised charity.
• The opportunity to work in a dynamic and fast‑growing business at the forefront of the print‑on‑demand industry.

Location

This role is fully remote with the team distributed across the UK and three international timezones. However, we do have an engineering hub based in Cardiff and so South West and Wales would be preferred.