Senior Fullstack Engineer, ReactJS/Node.js

🕒 February 27

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Playbook

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2017

☁️ SaaS

🧘 Wellness

🤝 B2B

💰 $7M Series A - Playbook on 2023-03

SaaS • Wellness • B2B

Playbook is a software platform that enables fitness creators, trainers, and wellness professionals to build, brand, and monetize their own subscription apps and one-time purchase programs. It provides ready-made content templates (classes, clips, Tabata, running, livestreams), community and messaging tools, progress tracking and CRM, analytics, and launch support so creators can scale recurring revenue with minimal setup and no upfront cost. Playbook emphasizes creator ownership, transparent economics (80/20 revenue split), content protection, and tools to grow and retain customers.

📋 Description

• Design and implement new features across the stack (Node.js and ReactJS), with a strong focus on usability, clarity, and real user value, shaping APIs and GraphQL contracts as part of the feature design process. • Build and evolve backend services and APIs (REST and GraphQL) that power our platform. Focus on reliability, maintainability, and clean integrations with frontend applications and third-party services. • Work closely with Product Managers and Designers to translate requirements into practical, well-scoped technical solutions. • Contribute to Engineering Requirement Documents (ERDs) that define data models, API contracts, and integration points before implementation begins. • Write clean, readable, and well-tested code. Participate in code reviews and contribute to shared standards around quality, testing, and maintainability. Improve existing systems where it provides clear product or developer value. • Take responsibility for the features you build. Identify issues or gaps, propose improvements, and iterate based on feedback. You’re comfortable working with some ambiguity and adapting as requirements evolve. • Ability to break down product requirements into data models, GraphQL types, and frontend component structure before writing implementation code.

🎯 Requirements

• 5+ years of professional software development experience, with a strong focus on full-stack JavaScript / TypeScript. Proven experience shipping production web applications end-to-end. • Strong experience with React.js and modern frontend patterns. Ability to build responsive, user-friendly interfaces with attention to detail and performance. Familiarity with TailwindCSS or similar styling frameworks. • Strong experience with Node.js, including designing GraphQL schemas and understanding resolvers, dataloaders, and API structure for maintainability. • Advanced TypeScript proficiency. Our codebase is heavily typed — you should be comfortable writing complex types, generics, conditional types, and using TypeScript to enforce contracts and model domain logic across the stack. • Active daily use of AI coding assistants (Claude Code, Codex, OpenCode, or similar) for development, debugging, and problem-solving. We expect engineers to leverage these tools to ship faster and work through complex problems. • Strong experience working with relational databases (PostgreSQL preferred), including schema design, query optimization, and reasoning about data consistency and performance. • Strong communication skills in English. Comfortable working in a remote, cross-timezone team and collaborating asynchronously.

🏖️ Benefits

• Equity options • 100% remote with flexible working hours and async-friendly culture. Collaboration across Europe and the US East Coast. • A collaborative team that values ownership, open communication, and autonomy over micromanagement. • Yearly team retreats focused on connection, alignment, and building strong team relationships. • Paid Time Off