Senior Full-Stack Engineer

About the role

Senior Full\-Stack Engineer

Early\-stage startup · Hybrid — Phoenix · Full\-time ·

About us

We're an early\-stage startup building a multi\-tenant SaaS platform for regulated and public\-sector customers.

The role

We're building a multi\-tenant platform on Google Cloud, and we need a senior full\-stack engineer who can own features end\-to\-end—from the React UI, through tenant\-aware Fastify APIs, down to the Postgres data model—and who helps harden the foundations as we grow: tenant isolation, test coverage, and our CI/CD safety net. You'll join a small, high\-ownership team where your architectural decisions stick. Compliance is part of the landscape here (audit trails, access controls, regulated customers), so you'll build with that in mind—but this is a broad full\-stack role, not a single\-domain specialty.

What you'll do

* Build features end to end—Postgres schema and Prisma models, Fastify APIs, and the React UI that consumes them. * Design and evolve our **multi\-tenant** data model and access controls (Postgres RLS, role\-based permissions) with isolation we won't regret in two years. * Use **Zod** and strong typing throughout to keep API contracts and runtime validation honest. * Own features through to production on Google Cloud Run, including observability and debugging in a live environment. * Raise the quality bar: grow automated test coverage (Vitest, Playwright) and wire quality gates into CI/CD. * Review PRs, mentor, and help set technical direction as the team grows. * Bring a modern approach to end\-to\-end testing. * Be comfortable with AI\-assisted development and help build out agents to increase team productivity.

What you bring

* **6\+ years** building production web applications full\-stack, with meaningful time as a senior or staff engineer. * Strong **TypeScript** across both front end and back end—equally at home in a React component and a backend service. * Solid **React** (hooks, modern patterns) with a fast build toolchain (**Vite** or equivalent). * Server\-side **Node.js** with **Fastify**, Express, NestJS, or similar—API design and architecture. * Strong **PostgreSQL** and data\-modeling instincts, plus an ORM (**Prisma** ideal) and migrations at scale. * A feel for multi\-tenant data isolation—row\-level security, tenant\-scoped access, the common footguns. * Good judgment on trade\-offs: schema\-per\-tenant vs. row\-level isolation, build vs. buy, where to draw the line on abstractions. * Comfort with **Docker** for local development. * Clear communicator who writes things down.

Nice to have

* **FedRAMP** or equivalent regulated experience (FedRAMP Moderate/High, DoD IL4\+, NIST 800\-53\)—and a working sense of what those controls mean for how you write code. * **PostgreSQL** depth—RLS and multi\-tenant patterns. * Multi\-tenant identity depth—OIDC, SAML, SSO, MFA, session handling (helpful, not the focus of the role). * **Tailwind CSS**, **TanStack Query / React Query**, **Firebase / Google Identity Platform** auth. * **Google Cloud** (Cloud Run, Cloud Storage) and **GitLab CI/CD**. * Background in compliance, GovCon, or other regulated/document\-heavy domains.

Our stack

**Backend:** TypeScript · Node.js 22 · Fastify · Prisma · PostgreSQL · Zod · Pino

**Frontend:** React 18 · TypeScript · Vite · React Router · React Query · Tailwind CSS · Axios

**Infra:** Docker · GitLab CI · Google Cloud Run · Google Cloud Storage · Nginx · pnpm monorepo

**Auth:** Firebase / Google Identity Platform · session\-based RBAC

**Testing:** Vitest · React Testing Library · Playwright

What we offer

* Competitive salary * Health, dental, and vision insurance * PTO and 401(k) * A small team, real ownership, fast decisions * Hybrid role based out of our Phoenix office

Pay: From $125,000\.00 per year

Benefits:

* 401(k) * 401(k) matching * Dental insurance * Flexible spending account * Health insurance * Life insurance * Paid time off * Parental leave * Retirement plan * Vision insurance

Work Location: Hybrid remote in Phoenix, AZ 85020