Senior Full Stack Engineer, Platform

About the Team

The Subscriptions Platform team is responsible for building the platform that powers Fireblocks’ subscription data, billing, and product-led growth initiatives — enabling both internal teams and customer-facing experiences to drive business impact.

We own and build services that power:

• Licensing and subscriptions

• Billing and payments

• Usage metering and analytics

• Integrations with CRM, payment providers, DWH, and other internal systems

• Signup and onboarding flows for new customers and workspaces

• Feature management and experimentation capabilities to support product-led growth (PLG)

• Enablement and configuration of purchased products for different business verticals

As a Senior Full Stack Engineer on this team, you’ll work across the stack — designing robust backend services and building polished, data-driven UIs that help customers and internal stakeholders get value quickly.

What You’ll Do

• Lead technical design and implementation of backend projects, owning end-to-end features from architecture to deployment

• Design, implement, and maintain scalable microservices and event-driven systems that power our subscription and billing engine

• Design and maintain asynchronous flows using queues to handle high-concurrency usage metering and analytics

• Contribute to the frontend domain by building and maintaining UIs that expose subscription data to customers

• Collaborate with Product, Data, and Customer Success teams to support product-led growth (PLG) and business goals

• Take ownership of production systems, including monitoring, troubleshooting, and reliability improvements

• Write clean, testable, and maintainable code, and participate in thoughtful code reviews

• Simplify integrations and workflows to reduce Mean Time to Valu