Senior Backend / Platform Engineer

You'll own the platform our agents run on — event-driven architecture, data pipelines, integrations with customer accounting systems, and the infrastructure that makes everything reliable, auditable, and fast.

What you'll do

• Event store — Append-only PostgreSQL with tamper-evident hash chaining, real-time event distribution, agent replay and recovery, schema versioning.

• Cryptographic signature infrastructure — Key management, signature verification on all agent events, approval chains for external actions.

• Workflow Constraint Engine — The gateway that verifies authorization before any external action (email, payment, API call) proceeds.

• PII Vault & GDPR compliance — Isolated, encrypted storage for personal data. Right to erasure. Data residency per region.

• Multi-tenancy — Row-level security, tenant isolation across all data stores, tenant-scop...