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About Source Meridian
Source Meridian is a development software company that works to solve the industry’s most challenging problems in healthcare practices. We are laser focused on specific technologies in the healthcare and life science industries: Healthcare technology, artificial intelligence, and healthcare interoperability.
About The Role
You are the builder. You work directly alongside the domain experts, co-write the most critical and risk-sensitive modules, build the test infrastructure, and handle the complex backend work that requires deep engineering skill — not just domain knowledge and an AI prompt. You also serve as the second PR reviewer, taking load off the Tech Lead for lower-risk PRs so the review queue doesn't become a bottleneck.
What You’ll Do
- Co-build the platform scaffold: PostgreSQL schema (core entities, tenant‑scoped tables, RLS policies), FastAPI project structure, Entra ID auth integration, Azure Service Bus queue setup.
- Implement the TenantScopedModel base class and write the first RLS test battery.




- Load and validate the CMS MPFS fee schedule (ETL pipeline from CMS fixed‑width files into PostgreSQL).
- Set up the local development environment (Docker Compose: PostgreSQL, Redis, Service Bus emulator) and document it.
- Repricing engine. Write the Medicare RVU calculation core (hlh‑repricing‑core package). This is the single most sensitive component in the platform — pure deterministic function, zero external dependencies, unit tests for each of the five calculation steps independently. This is not AI‑generated. You write this by hand.
- Tenant isolation layer: Implement and test the dual‑control pattern (application‑layer TenantScopedModel + PostgreSQL RLS with set_config on connection checkout/checkin). Write the cross‑tenant test battery that runs in CI on every PR.
- State machine transitions: Implement the custom state machine (14 states, WorkflowTask table, SLA polling job).
- Service Bus workers: Build the worker infrastructu

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📌 Senior Full Stack Developer (Medellín)
🏢 Source Meridian
📍 Medellín