Senior Full-Stack Software Engineer

About the Role

Join our Discover team as a Senior Full-Stack Software Engineer to evolve and expand Circle's curated marketplace. You will build seamless, high-converting experiences that empower users to explore, discover, and join digital communities, courses, and memberships.

Responsibilities

• Build polished, high-converting purchasing experiences for digital memberships, courses, and content at scale.
• Work autonomously on a product using Ruby on Rails backend with React and Next.js front-end applications.
• Develop and maintain Next.js applications alongside our existing Ruby on Rails + React codebase.
• Implement Next.js best practices, including SSR/SSG, routing, and performance optimization.
• Improve codebase quality and identify architectural deficiencies.
• Collaborate closely with product leaders and designers to create world-class user experiences.
• Foster a bias for action, prioritizing iteration speed without compromising code or user experience quality.

Requirements

• 5+ years of experience as a full-stack engineer on complex web applications with significant scale (e.g., 100k+ rpm, 100GB+ databases).
• Strong proficiency in Ruby on Rails, MySQL/Postgresql, ReactJS, TypeScript, Next.js, and Tailwind.
• Familiarity with both frontend and backend development is necessary.
• Desire to work in an autonomous, fast-paced, and collaborative remote environment.
• Comfort with ambiguity and learning new technologies as projects require.
• Experience working on a fully distributed remote team.
• Proficient in English (CEFR Level C2/ILR Level 5).

Nice-to-Haves

• Previous experience with creator platforms, social content feeds, or marketplaces.
• Production experience with Next.js in high-traffic applications.
• Experience migrating React applications to Next.js or architecting hybrid React/Next.js systems.