• Build and ship high-impact features used by millions of people. • Work across the stack using React & TypeScript (frontend) and Ruby on Rails (backend). • Improve the quality of our codebase and identify architectural opportunities for long-term evolution. • Collaborate closely with Circle’s co-founders and product/design teams throughout the spec and design process. • Review PRs with care, contributing to a culture of thoughtful and constructive feedback. • Work async-first and bring clear, proactive communication to everything you do.

• Develop Snowflake-based solution accelerators for connected mobility and fleet management • Engage in hands-on coding and development of solutions • Create reusable codebases for quick adaptation • Implement performance optimized pipelines and document assets for field teams • Collaborate with partners to enable system integration and pilot implementations

• Build and maintain core product features across frontend (Next.js) and backend (Django) stacks • Design and implement analytics dashboards, data visualizations, and real-time reporting systems • Own API design, optimization, and integration between apps and backend services • Ensure database performance and reliability • Collaborate closely with product, design, and data teams

• Assist in the design, development, testing, and maintenance of software applications • Write clean, readable, and well-documented code • Collaborate with senior developers, product managers, and other stakeholders • Participate in code reviews and team discussions • Help troubleshoot bugs and improve system performance • Learn and apply best practices around version control, testing, and deployment • Contribute ideas and solutions during technical planning and problem-solving sessions