The Opportunity

Good Inside is looking for a Senior Full Stack Engineer to join our Growth Pod. You’ll have a massive impact helping hundreds of thousands of parents discover life-changing solutions to their deepest issues. In this role, you’ll work to rapidly experiment and build features that drive user acquisition. 

This role is a hybrid position with three days a week in our Manhattan office.

What You’ll Own

• End-to-End Web Feature Delivery: Lead planning, estimation, implementation, testing, and support for features spanning our web application, backend services, and supporting infrastructure.
• Web Client Development: Build and maintain high-performance, maintainable web experiences in React/Next.js with Tailwind, ensuring strong test coverage, accessibility, and performance across devices.
• Payment Infrastructure Leadership: Design, build, and operate secure, compliant payment flows and integrations at scale; proactively identify risks and drive roadmap improvements.
• Quality, Reliability & Observability: Embed testing at every layer (unit, integration, end-to-end); advocate for and implement observability best practices; help lead incident response and post-mortem processes.
• Technical Leadership: Mentor teammates, review code with an eye toward long-term maintainability, and help set engineering standards and best practices for the web stack.

Your Skills & Experience

• 2-5+ years of professional software engineering experience, with a focus on web development at scale.
• Proven track record leading complex cross-stack features from architecture through launch and iteration.
• Deep expertise in React, Next.js, Tailwind, and modern web technologies (TypeScript, Vercel, etc.), with strong intuition for performance and DX trade-offs.
• Strong proficiency in some backend frameworks (examples include FastAPI, Flask, Django, Express) and ORMs (SQLAlchemy or equivalent) for schema design, migrations, and modeling.
• Familiarity with modern testing practices (unit with Jest, integration/E2E with Playwright, visual regression with Storybook) and CI/CD automation.
• Effective communicator: able to translate technical tradeoffs into business impact for PMs, Designers, and Execs.
• Experience mentoring engineers and influencing technical direction across teams.
• Payments knowledge: experience building/operating secure, compliant, high-throughput payment flows (Stripe, Apple, Google, etc.)

Nice to Haves

• Python, FastAPI & SQLAlchemy experience (bonus, but not required).
• Familiarity with Dart & Flutter (our mobile app tech stack).
• Contributions to open source or public tech talks/blog posts.
• Prior mentorship or interview experience.

What We Offer

• Competitive Compensation: base salary for this role will be $140k - $180k annually
• Company Equity
• Comprehensive benefits package
• 401k + Company match
• Time off to recharge
• Hybrid work environment
• A high-ownership, high-performance, high-collaboration culture