DescriptionWe are hiring a Senior Functional Backend Engineer to help us connect to insurance portals across the U.S. to ingest, transform, and deliver structured healthcare data, including claims, EOBs, plan documents, and accumulators.This role sits at the intersection of production reliability and system design. You’ll own integration health in production, onboard new portals, expand data coverage, and write clean, strongly typed backend code. The team values functional principles such as composability, explicit error handling, type safety, and uses Effect extensively, but prior experience with Effect is not required. This is hands-on engineering in a system where correctness and clarity matter.English fluency is a MUST for this role! Only candidates with level C1 or C2 will be considered:A1 BeginnerA2 ElementaryB1 IntermediateB2 Upper-IntermediateC1 AdvancedC2 ProficientResponsibilitiesProduction Triage & ReliabilityOwn first-response triage for portal integration failuresDebug log...