Back End Developer (Python + Fast API + Aws)

We're rebuilding a fully owned, offline-first platform for inspection and compliance workflows — and we need a Lead Backend Engineer to drive the backend architecture. This is a high-impact, hands-on role. You'll lead the design and development of schema-driven inspections, offline sync systems, custom reporting engines, and scalable APIs — not just glue code. What You'll Do: Own and evolve core backend services. Design dynamic, schema-driven APIs (JSON metadata). Build an offline-first sync engine (queued writes, retry logic, conflict resolution). Replace Survey123 reports with a new HTML-to-PDF engine (WeasyPrint, wkhtmltopdf). Generate static maps for field reports. Collaborate closely with mobile engineers (iOS, Android) and DevOps teams. Mentor mid-level engineers and remote collaborators. What You Bring: 7+ years backend engineering experience. Python expert with real-world async experience (FastAPI preferred). Deep AWS knowledge: EC2/Fargate, S3, IAM, ALB, CloudWatch. PostgreSQL wizardry (JSONB, PostGIS, indexing, migrations). JWT/OIDC auth (Cognito or FastAPI JWT stacks). Event-driven architecture skills (Redis, background workers, retry queues). Strong engineering discipline: typed interfaces, testing, observability.