Senior Fullstack Engineer

Join BLP and help make the world’s business processes autonomous! Our agentic platform helps finance and operations teams worldwide remove manual work from their core business processes, so work runs end-to-end with greater control and significant productivity gains. Today, over 550 enterprise customers use BLP across 1,300+ deployed projects. In the processes we automate, customers achieve productivity improvements of 5 to 10 times. To date, BLP remains majority employee-owned, with Goldman Sachs holding a minority stake as a growth investor. Our success is driven by deep expertise in technology and business processes, a superior product with strong product-market fit, reflected in an expanding customer base that includes Fortune 500 companies. BLP is one of Switzerland's fastest-growing SaaS scale-ups; we are now entering our next phase of growth. From our headquarters on Zürich's Bahnhofstrasse, we're expanding globally, with a growing presence across Europe and North America. Join us and help make autonomous operations the new standard. The team At blp, dedicated engineering teams own individual products such as invoices, customer orders, and order confirmations. The Platform Team owns what all of them are built on: shared services and APIs, the data access layer, and the component and design system that shape how the product looks and behaves. The team's focus has been the frontend platform, and we are now deliberately extending that ownership deeper into the stack. You would be central to that shift, with real influence over how the platform layer gets defined rather than inheriting someone else's blueprint.   About the role • What you'll do and for whom. You build and run the core backend service our product teams rely on, from its APIs and persistence layer to email, user provisioning, and cross-tenant capabilities for large enterprises. Through those teams, your work reaches the 20'000+ people who use our Purchase-to-Pay and Order-to-Cash agents every day. • Where you'll work. You join the Platform Team, about 10 engineers. At BLP, platform means the core of our product, not internal infrastructure: the shared services, data access layer, and design system that every product runs on. You work closely with the senior backend engineer who owns these areas today, in a large production Go codebase with well-established patterns. • What success looks like. In your first year, you own one core area end-to-end, for example, user provisioning, outbound email, cross-tenant capabilities, analytics, or workflow configuration, from the Go service to the customer using it.   What you'll do • Build the service that product teams build on. Design, build, and evolve the core APIs behind document processing, approval workflows, administration, and analytics, with clear contracts so product teams can ship on top of them without workarounds. • Own the persistence layer. Each tenant has its own isolated MySQL database. You evolve the abstraction product teams build on (a tenant-scoped unit of work, typed repositories, and shared type-safe querying) so that isolation, transactions, and permissions are right by default. • Scale BLP for large enterprises. Extend our cross-tenant capabilities so customers with many subsidiaries and business units can manage users, permissions, and documents across all of them from one place, correctly, securely, and fast. • Own email, in and out. Own our email document ingestion and outbound email services, including the audit trail and its UI. • Make setup self-service. Turn manual SSO, SCIM, and email setups into migration tools and admin UIs that customers and project managers can run on their own. • Work with customers. Join onboarding calls with customer IT teams and project managers, get their s