We're hiring a Senior Platform Engineer to own half of a live healthcare revenue-cycle platform. This is not a framework hire — it's a second senior generalist taking end-to-end ownership of undiagnosed problems, from diagnosis through safe production deployment and documentation.

The Role

You'll work on a platform that holds Protected Health Information (PHI), processes real money, and currently sits bottlenecked on a single person. Your work spans:

• Debugging across system boundaries: reproducing failures, reading logs, tracing incorrect numbers through multiple services to root cause.

• TypeScript and Python equally: the codebase splits evenly; most tasks cross both languages.

• Production AWS serverless in anger: Lambda, SQS, scheduled jobs, RDS, secrets, observability, alerting.

• Hand-written SQL with deep caution: safe migrations on live multi-tenant data, query execution awareness.

• Dense regulatory and payer documentation: turning long, dry clauses into correct, tested logic.

• Modern React:



building data-dense operational dashboards for billing staff who live in them.

• Third-party integrations end-to-end: clinical record systems, claim networks, payment/banking providers, identity. You own them when the vendor breaks things silently.

• Security and compliance as routine: access control, auditability, least privilege over PHI.

What We're Looking For

You take end-to-end ownership: given an undiagnosed problem, you return with the diagnosis, the fix, a failing-test-first proof, a rehearsed and reversible path to production, and a written account nobody had to chase.

You work from ambiguity, not groomed specs. You narrate hypotheses and what evidence would falsify each. You reproduce before fixing; you read logs before guessing.

Test-first is a habit, not a preference. You write the failing test from the requirement, then build.

You bias toward the shortest correct solution. Speculative abstraction loses to shipping.

You surface blockers the

📌 Senior Platform Engineer — Healthcare Revenue Cycle (Argentina)
🏢 Beslect
📍 Argentina