Moss

Moss is seeking a Senior Backend Engineer to build and scale Java-based accounting product capabilities in collaboration with product, design, and frontend teams. The role owns backend projects from planning through rollout, with a strong focus on reliability, testing, and customer impact.

Build and operate production AI agents that automate complex finance workflows at Moss. This product engineering role combines agent architecture, evaluation, backend integration, and reliable deployment of customer-facing AI capabilities.

Moss is hiring a Senior Backend Engineer in Warsaw to build reliable, scalable finance automation products with Java and Spring. You’ll lead backend projects from planning through launch while collaborating closely with product, design, and frontend teams.

Build and own reliable AI agents, automations, integrations, and internal tools that improve Moss’s product operations workflows. This hands-on role centers on no-code/low-code platforms, LLM APIs, and connecting systems at scale.

Senior Platform Engineer responsible for building and operating the cloud-native infrastructure that powers Moss’s high-availability FinTech platform. The role focuses on Kubernetes, reliability, observability, infrastructure as code, secure deployments, and incident response at scale.