Senior Backend Engineer — Java & Event-Driven APIs

Role at a glance

Back-end for messy enterprise integrations, done carefully.

Brightcart Retail (demo) exchanges catalog and order events with dozens of marketplaces. You will write services that never double-charge, never send half a shipment, and never need a 3 a.m. “fix the DB” runbook the intern wrote.

What you will do

• Implement the transactional outbox, dedupe keys, and poison pill handling for partner webhooks and batch reconciliations
• Build APIs that are versioned, paginated, and rate-limited—backpressure that protects shared Postgres under surprise spikes
• Partner with QA on property-based and contract tests so breaking changes are caught in CI, not a partner’s staging fire drill

What we need

• 5+ years Java in production, including debugging GC pauses, slow queries, and stuck consumers
• You think in failure modes first: at-least-once delivery, duplicate callbacks, and partial platform outages

How we will interview you

Code review of a take-home (small outbox + consumer), system design on retry storms, and a pairing session implementing a test harness for flaky partners.

Note: this posting is demo data for the portal. Compensation band tests filters only. Apply via example.com addresses in this record.