Description We 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 Beginner A2 Elementary B1 Intermediate B2 Upper-Intermediate C1 Advanced C2 Proficient Responsibilities Production Triage & Reliability Own first-response triage for portal integration failures Debug login automation issues, crawl failures, and ingestion errors Trace failures across logs, workflows, and monitoring systems Implement clean, durable fixes - not just patches Escalate systemic platform issues when appropriate Portal Onboarding Bring new insurance portals into production Reverse-engineer APIs and browser workflows Build ingestion pipelines and validate structured outputs Ensure integrations remain resilient as portals evolve Data Expansion Extend existing integrations to capture new data types Maintain strong typing and predictable transformations Guard against schema drift and data inconsistencies Collaboration Contribute to runbooks and documentation Participate in async standups and structured handoffs Work closely with a platform-focused engineering team Requirements 4+ years of Strongly Typed Backend Experience Deep experience in strongly typed languages ( TypeScript , Scala, Kotlin , Go, etc.) Careful API modeling and schema validation Comfort designing systems where types act as contracts Functional or Declarative Programming Experience You don't need to come from a pure Functional Programming background, but you should be comfortable with immutability, explicit handling, declarative composition, and writing predictable, testable code. AI Integration Experience: Accelerate developers and internal operations by exposing or configuring API and MCP access to our infrastructure, while keeping costs and security under control. CI/CD Operations Experience: Ability to improve GitHub Actions workflows, implement faster CI runners, enhance caching strategies, and manage multi-environment deployments (dev/prod) using Pulumi Infrastructure Management with AWS: Maintain AWS infrastructure including ECS, Aurora RDS (Gel), VPC networking, and monitoring stack (OpenTelemetry, Honeycomb, Sentry → but soon Datadog), and AWS access provisioning TypeScript (Backend) Enhance our TypeScript monorepo performance, optimize the Nx build system, migrate from CommonJS to ESM, and improve our Docker-based DevContainers Nice To Have Experience with Effect Experience with Effect is a strong plus If not, you should be comfortable learning it and working within a composable, typed effect system Playwright or browser automation API reverse-engineering via browser devtools Workflow orchestration (Temporal or similar) Data ingestion or transformation pipelines Observability tooling (Datadog or similar) MDM & Security & Compliance: Support HIPAA compliance initiatives, including RBAC implementation, encryption standards, and security monitoring Experience in the Healthcare industry in the USA