Senior Product Engineer

Moxie

Senior Product Engineer at Moxie building payments and billing infrastructure for med sp...

Posted 7/7/2026full-timeRemote • 🌎 Anywhere in the WorldSenior💰 $77,000 - $130,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong backend engineering capabilities with expertise in schema/API design, data modeling, and async processing, particularly using Python and Django. Proven ability to mentor engineers, influence architectural decisions, and manage medium-to-large FinOps projects in dynamic environments.

Highest-signal resume keywords

Backend Engineering ExperiencePostgreSQL FluencyFinOps Systems ExpertiseMentoring EngineersProject Ownership

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Schema DesignAPI DesignData ModelingAsync ProcessingQuery OptimizationData Integrity PatternsThird-Party IntegrationsFailure HandlingIdempotencyTradeoff Decisions

Soft Skills

Influencing Technical DirectionCross-Functional CoordinationCulture Carrier

Tools & Technologies

PythonDjangoPostgreSQLStripeLayerFiCherry

Industry Keywords

FinOpsBilling WorkflowsPayments Systems

Tech Stack

Tools & technologies

DjangoPostgresPython

About the role

Key responsibilities & impact

Own and deliver medium-to-large FinOps projects end-to-end — from design through production — as a hands-on senior IC.
Build deep expertise in FinOps systems and business context (Stripe, LayerFi, Cherry, and related billing/payments workflows), becoming a trusted technical resource for the team.
Participate actively in Moxie's Engineering Architecture Process, contributing to and influencing technical decisions within your domain.
Own at least one team- or domain-level non-project initiative — such as testing standards, documentation, or code review practices — that raises engineering quality beyond your own projects.
Mentor IC1–IC2 engineers and act as a culture carrier for strong engineering practices, growing toward Staff (IC-4) scope over time.

Requirements

What you’ll need

Strong backend engineering experience, including schema/API design, data modeling, and async processing (Python/Django experience a plus).
Deep PostgreSQL fluency — query optimization, schema design, migrations, and data-integrity patterns.
Experience building and hardening third-party integrations, ideally in payments or financial systems, with strong attention to failure handling and idempotency.
A track record of owning medium-to-large, sometimes ambiguous projects end-to-end as a senior IC, including tradeoff decisions and cross-functional coordination.
Comfort influencing architecture and technical direction beyond your own immediate project scope.
Experience mentoring engineers and raising the technical bar for a team.
Excitement for high-ownership, early-stage environments where decisions matter and aren't buried under bureaucracy.

Benefits

Comp & perks

Above all, we're in this to empower small business owners to own and grow their businesses. Med spa providers depend on financial systems that just work — this role gives you direct ownership over that reliability.
We have much left to build. Given the market feedback we're seeing and our team's experience, we believe we're writing the early chapters of a real success story — and this role gets to help write the financial-systems chapter of it.