Senior Full-Stack Developer

About this role

# About us

Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/

# About the role

We’re building and scaling a profitable D2C platform used by hundreds of thousands of customers globally, processing large volumes of traffic and revenue every month.

The product is well beyond MVP: it’s battle-tested in production, monetizing at scale, and now entering a phase of rapid growth and expansion. We’ve recently launched a second product in the same ecosystem and are doubling down on building a world-class engineering organization to support continued scale.

We’re looking for a Senior Full-Stack Developer who can combine hands-on technical excellence with strong ownership. You’ll be responsible not just for shipping code, but for shaping architecture, improving reliability, raising engineering standards in a high-paced environment.

This role is not about maintaining a legacy system. It’s about scaling real products used by real users, fast.

If you’re looking for a comfortable 9–5 role, this won’t be the right fit. But if you’re excited by ownership, accountability, and building high-quality systems under real-world pressure, read on.

# Key Responsibilities

• Take ownership of core product components from concept to deployment.
• Collaborate with the Product team to design scalable and maintainable architectures.
• Participate in (and lead) code reviews and ensure best practices across the team.
• Mentor junior and mid-level developers, providing guidance and fostering growth.
• Contribute to hiring and onboarding new team members.
• Maintain high code quality and application performance in a fast-paced, high-traffic environm...