Who you are

• Strong alignment with our values (find our values on our career page if you haven’t read up on them yet)
• You are proficient in English (spoken, written, and reading) at a CEFR Level C2 / ILR Level 5
• Deep expertise with JavaScript and React, especially at the architectural level
• A strong track record of improving performance and reliability in modern front-end applications
• 5+ years of experience in a front-end engineering role, ideally with experience owning or modernizing large codebases
• Comfortable working autonomously in a fast-paced, fully remote environment
• Experience building internal component libraries or design systems
• Experience with server-side rendering, code splitting, or other performance optimization techniques

What the job involves

• We're scaling quickly, and the front-end infrastructure that powers our product needs to scale with it
• We're hiring a Senior Front-End Software Engineer to join our Infra team and take ownership of our front-end stack — keeping it modern, fast, and reliable
• You’ll lead efforts to upgrade React, optimize performance, and build reusable tools that help our product team move faster
• Maintain and modernize our front-end stack, including React upgrades and performance improvements
• Build internal front-end tools, component libraries, and SDKs to improve developer experience and consistency
• Partner with back-end and SRE engineers to support observability, performance, and scaling efforts
• Identify opportunities to reduce third-party dependencies through in-house solutions
• Contribute to architectural decisions that improve speed, usability, and maintainability of our UI

Benefits

• Medical coverage & reimbursements: Depending on your location, you will either be offered a full medical plan for you & your family, or offered generous monthly reimbursements to help with medical costs
• Equity package: We offer an equity package to every person that works at Circle
• Paid time off: We offer 35-days of PTO per year based on your hire date. Up to 50% can carry over to the next year
• Work from home, or anywhere: All of our employees are 100% remote!
• Learning & development stipend: Take advantage of up to $500 USD per year to help you level up your professional skills
• Home office stipend: New joiners receive $2,150 USD on their first paycheck to help outfit their home office, with a refresh every three years
• Company offsites: Twice a year, the Circle team gets together for a fully paid company retreat in incredible places around the world!
• Annual bonus: Roles that don't already receive variable income or commission are eligible to earn up to an extra 5% of their annual earnings as a yearly bonus based on overall company performance
• 401k with employer match: U.S. employees can partake in a 401k plan that has a 5% match, dollar-for-dollar
• U.S.-benchmarked compensation, no matter where you are in the world
• Paid sabbatical: After 3 years of employment, team members earn a paid 1-month sabbatical to decompress and unwind
• Parental leave for parents expanding their family, or just starting one