Senior Python Developer

About MedaVida MedaVida is building the payments-enabled operating system for modern cash-pay healthcare. Our platform connects credential verification, patient care, prescriptions, payments, suppliers, communication, and practice growth within one unified ecosystem. We are a fast-moving healthcare technology and fintech startup preparing to bring multiple products to market. We are looking for a technically strong Senior Python Developer who can take on our hardest, most ambiguous backend problems — money movement, clinical data integrity, credential verification — and ship them correctly, not just quickly. The role We're looking for a Senior Python Developer to own the backend work that doesn't come with a clean spec: the tickets where the hard part is figuring out the right design, not just writing the code. Our stack is Django/DRF over Postgres, integrated with a Medplum FHIR clinical core and multiple payment processors — the kind of system where a shortcut in one place quietly breaks correctness somewhere else, and where getting it right the first time matters more than getting it out the door first. We're a startup, which means responsibilities don't stay in one lane. You'll shift between Development, Review, Product Requirements definition, and Testing as the moment calls for it — that's a feature of how we work, not a scope-creep exception. You'll also be a regular source of review and guidance for less experienced engineers picking up work adjacent to yours, without that being a formal management responsibility. If you're the person other engineers already bring the "I'm not sure this is even the right approach" problems to, this role is built for exactly that. What you'll do

• Own the hardest backend tickets. Complex, ambiguous work — payment-gateway

integrations, money-movement correctness, data-model design, cross-system integrations — where the primary job is judgment, not typing.

• Design before you build. For work this consequential, that means reasoning

through edge cases, failure modes, and existing invariants before committing to an approach — and being able to explain that reasoning to a reviewer or a teammate.

• Write tests that actually prove correctness, not just tests that pass. Money and

clinical-data code gets held to a higher bar here than a typical CRUD endpoint.

• Review other engineers' work, including AI-drafted PRs on more complex tickets,

and give feedback that helps them build the same judgment over time.

• Say when something's wrong, even if it's already shipped or already agreed on.

Surfacing a real problem late is still better than staying quiet to avoid friction. What you need

• A real track record shipping production Python/Django backend systems, including

work that required genuine judgment on ambiguous problems — not just following a clear spec. This is the one non-negotiable requirement for this role.

• Strong command of Python and a relational database (we run Postgres) — comfortable

reasoning about query performance, migrations, and data integrity, not just ORM syntax. Nice to have — things that make you a strong fit, not things you must already have

• Experience with Django REST Framework specifically, or a comparable Python web

framework at production scale.

• Experience with payments, billing, or other systems where correctness failures cost

real money — the instinct to be paranoid in the right places.

• Experience integrating third-party or partner APIs (payment processors, external data

sources, webhooks) and handling their failure modes gracefully.

• Comfort giving direct, useful code review to engineers earlier in their career.
• Curiosity about system design beyond the ticket in front of you — how a change here

affects something three files away. How we work

• Hours: 8:00 AM – 5:00 PM EST.
• Weekends: Not the norm, and we mean that as a design goal, not a hope. If a weekend

gets worked, we treat that as a personal and managerial failure first — something to fix upstream, not shrug off — and every effort is made to avoid it. That said, we're a startup: the team is expected to pivot to meet real opportunities, sometimes on short notice, and that occasionally means weekend work. Why this role If you're a strong senior engineer who wants your hardest problems to actually be hard — not busywork dressed up as a senior title — this is that. You'll be trusted with the work that has real consequences if it's wrong, working directly with the people who built the system, on a codebase that's still young enough to shape. Location: Remote Compensation: We're a startup with real product already in the market, and we offer competitive salaries. We're also in the process of setting up an Employee Stock Option Plan (ESOP), with vesting backdated to begin on your employment start date.