Staff Security Engineer, Checkout

Mailchimp is hiring a Staff Security Engineer, Checkout to join our fully remote team in the United States. As a Staff Security Engineer, Checkout, you'll design, build, and ship reliable software that scales to millions of users. This is a contract, work-from-home role open to candidates across the US (Remote — US (CST)). About the role You'll design, build, and ship reliable software that scales to millions of users, partnering with a friendly, distributed team across US time zones. We care about outcomes over hours and give you the autonomy, tools, and support to do your best work from home. What you'll do: • Collaborate with product and design on new initiatives • Improve performance, reliability, and developer experience • Develop, test, and maintain features across the stack • Write clean, well-tested, and documented code • Review pull requests and mentor teammates What we offer: • Generous paid time off and company holidays • Flexible working hours across US time zones • 100% remote, work-from-anywhere-in-the-US culture • 401(k) retirement plan with company match • Annual learning and professional development budget How we work We're remote-first and async-friendly. Expect clear documentation, regular feedback, supportive teammates, and real opportunities to grow your career. Mailchimp is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for everyone.

Minimum qualifications: • 7+ years of experience, including leading teams or projects • Solid understanding of data structures, APIs, and databases • Strong communication in a remote, async environment • US work authorization • Experience with version control and CI/CD Nice to have: • Comfort communicating clearly and proactively in writing • A track record of taking ownership and shipping independently