Senior Growth Engineer

We're looking for a Senior Engineer to join Buffer's Growth Marketing team. This is a hands-on engineering role building the web experiences, systems, and infrastructure that help Buffer grow. The work spans building features and pages across buffer.com, interactive tools, referral systems, conversion flows, along with the technical implementation behind them: integrations with marketing tools, analytics and tracking systems, SEO infrastructure, and the backend logic that powers our marketing features.

We need someone who's comfortable across the full frontend scope, strong with React and modern web development, but also capable of diving into backend logic, connecting third-party APIs, debugging tracking pipelines, and figuring out what they don't know. The team values pace and iteration: we ship quickly, learn from real usage, and improve as we go. But we also care about craft, noticing the UX details and maintaining standards while keeping momentum.

Working at Buffer is collaborative and positive thanks to our core values. We try to be "No Ego Doers" who are aware of our assumptions, and joining us means you'll work together as a team to test and confirm our ideas.

• You have strong frontend foundations in React, TypeScript, and modern web development, and you're comfortable going beyond the frontend when the work calls for it - writing backend logic, building API routes, connecting third-party integrations. Our site runs on Next.js, but we care more about your adaptability than matching our exact stack.

• You understand what it takes to grow something. Maybe you've worked on a marketing or growth team and have hands-on experience with SEO, analytics, A/B testing, and conversion optimization. Or maybe you've grown your own product, startup, or side project and learned these things by doing - building referral systems, running experiments, and figuring out what converts and why. Either way, you know how to measure impact and you're motivated by the numbers moving.

• You think beyond the immediate task. You care about how things connect, whether they'll hold up, and whether the details are right - but you also know when to ship and learn from real usage rather than polish indefinitely.

• You thrive in remote, async environments. You communicate clearly, support your teammates, and don't wait for permission to make progress. You work effectively across marketing, design, and engineering, and can explain technical decisions to non-technical stakeholders.

• You've built AI into user-facing marketing features at scale and you use AI tools daily to multiply your own output — we want someone who shares our energy about what AI makes possible.

• You have a personal stake in the world of content creation. Maybe you've run a newsletter, built an audience on social media, or regularly share your own work online. You've used Buffer before and care about the experience of planning, creating, and publishing content.