Senior Fullstack Engineer

Toolbox Health

Senior Fullstack Engineer developing branded resale technology at Archive. Responsible for fullstack features and integrating AI tools into the workflow.

Posted 7/9/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $180,000 - $200,000 per yearWebsite

Tech Stack

Tools & technologies

GraphQLJavaScriptNext.jsNode.jsPostgresReactTypeScript

About the role

Key responsibilities & impact

Own fullstack features end-to-end, from design through release through maintenance, across a modern stack; true comfort on the backend is key
Develop and maintain robust integrations (payments, gift cards, and beyond), building reliable, production-quality systems
Take real ownership in a flexible, fast-evolving environment with light process and no traditional Product Manager
Collaborate cross-functionally to turn needs into shipped outcomes
Share in the engineering on-call rotation (incident response and support)
Debug production issues across multiple levels of the stack
Make pragmatic architecture and system design calls, balancing speed, scale, reliability, and maintainability
Use AI tools like Claude as a force multiplier across your workflows, with good judgment about where to trust them and where not to
Help the team level up its AI-native development practices and set the bar for how we build in an AI-default world

Requirements

What you’ll need

A strong track record as a fullstack engineer with production experience across frontend and backend services, comfortable owning a feature end to end
An AI-first dev workflow: you are ready and excited to build, review, and debug with AI coding tools and agents as a default, and can show how it makes you faster—and where you choose not to rely on it
Bias towards action in a fast-moving, small-team environment: you ship, iterate, and take ownership without a heavy playbook
Solid debugging and systems judgment: you can reason about an unfamiliar system and find the real problem
Comfort with systems design and reasoning about scale, reliability, and trade-offs
Bonus: familiarity with our stack (Next.js / React / TypeScript / Node / GraphQL / Postgres) and multi-tenant platform experience

Benefits

Comp & perks

equity
full benefits package including employee and dependent healthcare
401(k) enrollment

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Fullstack DevelopmentSystems DesignDebuggingIntegration DevelopmentProduction Quality Systems

Soft Skills

OwnershipCollaborationBias Towards Action