Senior Full Stack Engineer

Who We Are

Good Inside is redefining parenting - not as something that should “just come naturally,” but as a skill to learn and practice. Founded by Dr. Becky Kennedy and Dr. Erica Belsky, we combine sturdy leadership with innovative technology to give parents personalized guidance, AI-powered support, and a global community.

Our mission: help parents raise resilient, confident kids in a changing world. We’ve already reached millions, and we’re just getting started. We’re refining our product and expanding our reach to empower even more families.

We’re looking for bold, high-ownership problem-solvers who want to build something new, tackle big challenges, and be at the forefront of change.

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

Equal Employment Opportunity

Good Inside is an equal opportunity employer and as such, we do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or any other characteristic protected by applicable laws.

We are dedicated to growing a diverse team of highly talented people. As much as we believe in focusing on the parent behind the parenting and the child behind the behavior, we believe in focusing on the person behind the job. We’re dedicated to building a workplace where we give each other the strategies, support, and space we each need to thrive—believing in and bringing out the good inside of everyone..

If you require any accommodations during the recruitment process, whether it be alternate forms of material, accessible meeting rooms, etc., please let us know and we will work with you to meet your needs.

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