Senior Engineer, Commerce

Kajabi is in the middle of a once-in-a-decade transformation.

After fifteen years, our founders returned to rebuild Kajabi with the same speed, hunger, and grit that sparked the original movement. We’re not a corporate SaaS company trying to play it safe — we’re a team of builders rewriting the future of the expert economy.

Millions of people around the world rely on Kajabi to share what they know and change lives because of it. Our Heroes aren’t “customers”… they’re everyday entrepreneurs using Kajabi to build freedom for themselves and impact for others.

If you want to be part of a company moving fast, raising the bar, and building something that actually matters — welcome in.

Kajabi is hiring a Senior Software Engineer to join our Commerce team and help shape the future of payments, checkout, subscriptions, and monetization at Kajabi. You’ll work at the intersection of product reliability, financial compliance, and user experience — building scalable systems that power the business side of our creator ecosystem.

This role requires strong expertise in Ruby on Rails, React, Postgres, combined with hands-on experience using AI tooling, including agents, to drive smarter workflows and user-facing features.

• Design, build, and maintain scalable backend systems and APIs using Ruby on Rails to power core commerce functionality (checkout flows, invoicing, subscription billing, tax compliance, etc.)
• Develop rich, dynamic user interfaces in React that make complex payment processes feel intuitive and delightful.
• Integrate AI tooling and agents to streamline product, operational, and development workflows.
• Collaborate cross-functionally with Product, Design, and Data to align on user experience and performance goals.
• Lead system design conversations, participate in architecture reviews, and contribute to long-term platform direction.
• Write clean, testable, maintainable code and provide thoughtful peer reviews.
• Support the reliability and security of payment systems — including PCI compliance and fraud mitigation practices.
• Champion robust monitoring and observability practices with Datadog.
• Provide technical leadership and ownership delivering amazing features to our Heroes.

• You’re product- and customer-minded—constantly thinking about how users buy, sell, and manage revenue on Kajabi. With over $1 billion in transactions processed annually through our platform, you understand the impact every interaction has on our creators’ livelihoods and are driven to elevate every touchpoint across the payments experience.
• You make pragmatic decisions. You’re not afraid to challenge assumptions, but once aligned, you commit fully to execution and delivery.
• You’ve shipped features that impacted key commerce metrics—like conversion, churn, cart value, or failed payment recovery—and have a strong intuition for what drives user trust in financial systems.
• You have deep experience working with Stripe’s APIs and can confidently build robust, scalable, and trustworthy commerce experiences.
• You balance speed and quality—prioritizing clean architecture, rollback safety, and test coverage in a domain where bugs can have real financial impact.
• You use automation, developer tooling, and AI-assisted workflows —like Windsurf, Cursor, Claude Code, and Devin AI— to accelerate delivery without compromising reliability or maintainability.
• You’re confident working across the stack—especially in Ruby on Rails, React, and Postgres—and you’re comfortable designing and debugging both backend flows (e.g., subscription billing, tax logic) and customer-facing UIs (e.g., checkout, pricing configuration).
• You thrive in a collaborative, cross-functional environment—partnering with Product, QE, Design, and Support to solve real-world commerce problems. You’re not just shipping code, you’re shaping the economic backbone of the Kajabi platform.
• You’re comfortable querying production data to validate assumptions, diagnose issues, or advocate for better instrumentation to ensure financial transparency and traceability.
• You’re resilient and curious—especially when faced with unexpected behavior in complex systems like payment gateways or tax engines. You push past ambiguity to find root causes and lasting improvements.
• You communicate with clarity and intention—whether you're explaining tradeoffs in API design, mentoring a teammate through a PR, or reviewing the rollback plan for a high-impact release.
• You design production-ready solutions from day one—whether it’s safe schema changes, idempotent billing flows, or alerting strategies that respect the sensitivity of financial systems.
• You help level up the team—offering thoughtful feedback in design reviews, contributing to internal tooling.

• Familiarity with international payments and currency support.
• Contributions to open-source Rails or React projects.
• Experience building tools for content creators.
• Familiarity with product analytics tools (e.g., Amplitude, Looker, Hex, Rudderstack).
• Operational experience deploying on cloud based infrastructure and monitoring via Datadog.

1. Build and support software that makes the world a little bit better by empowering thousands of people to help millions of people get a little bit better at... just about everything: We've built a product that people from all walks of life are using to teach just about anything you can imagine, from personal development, to personal finance and investing, to software development, to yoga, or floral arrangement and everything in between and beyond. Whatever your interests, there are likely at least a few customers who are sharing that kind of knowledge with the world, using Kajabi. If you care about teaching, sharing, and helping others, consider your work at Kajabi a force multiplier that will touch the lives of millions of people. You'll learn a thing or two about what it takes to create, market, and sell digital products. You might even be inspired to make a course of your own—we'd love that!
2. Work with an incredible group of human beings:"It's the people." That's what everyone seems to say when asked what they like most about working at Kajabi.We spend a major portion of our lives at work, so above all we try to be good humans, to each other and to our customers.
3. Work within a collaborative and high performing cross-functional product team: We've divided responsibility for our app across several cross-functional teams consisting of about 7 to 10 people including a product designer, QA, UX developer, and a few full-stack or backend developers.

We let the type of work you do guide the collaboration style. That means we're not always working in an office, but we continue to gather for key moments of collaboration and connection. 

• This role will need to be in the office for in-person collaboration 2-3 times a quarter and therefore is best situated in the Western Time zones.

This role is remote, but we’re also happy to support relocation for exceptional candidates who wish to work from our Newport Beach, CA office. If this is of interest, please let us know when we connect!

• Competitive full-time salary + bonus + equity eligibility
• Full medical, dental, and vision (company-paid for you + family)
• 401(k) with 6% match
• Flexible PTO
• Fitness + wellness perks
• Mental health resources
• Company travel for in office collaboration days, and leadership growth opportunities

At Kajabi we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for a bonus. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise.

US based applicants only.

$133,500- $178,000 + bonus

Sound like a good fit for you? Click apply, below!

• Links - Send along any links that best showcase your experience, i.e. your portfolio, LinkedIn, blog posts, other writing samples, etc.
• Cover Letter - Please provide a cover letter that aligns directly to this role. Introduce yourself as a part of our team and tell us why you’re interested in Kajabi! Show us how you could make an impact in Kajabi’s future as well as how Kajabi can influence yours. Feel free to get creative! We are committed to providing our undivided attention to you! 

Kajabi LLC  is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, disability, age, veteran status, or any other basis protected by applicable law.