Senior Frontend Engineer (Performance)

About Multi Media, LLC Multi Media, LLC is the company behind Chaturbate, one of the most heavily trafficked live streaming platforms in the world. We support a global network of independent content creators and millions of real-time viewers, delivering interactive video at scale. Our infrastructure handles complex broadcasting, low-latency streaming, and high-engagement user experiences.

All live, all the time. We’re building a platform where creators can express themselves freely and grow their communities, where viewers discover and interact with creators they’re drawn to, and where the team behind it is challenged, trusted, and responsible for shaping the experience of millions of users worldwide. We value people who take initiative, stay curious, and care deeply about the quality and impact of what they build.

The Role We are looking for a Senior Frontend Engineer who specializes in frontend performance tuning and optimization. You will join the Viewer team, which is responsible for delivering high-traffic experiences across search, video, site navigation, and other core areas of Chaturbate. This role requires deeper performance expertise than a typical frontend engineering position.

You will investigate how browsers execute and render our applications, profile production bottlenecks, analyze memory usage, and identify the code paths causing delays or instability. As the role evolves, you may have opportunities to apply your expertise to other high-impact frontend experiences and help shape how we approach performance across Engineering.

What You’ll Do

• Diagnosing, triaging, and leading to resolution issues involving unnecessary renders, long tasks, memory leaks, forced reflows, layout shifts, expensive painting, and excessive JavaScript execution.
• Define and improve measurable performance targets using real-user monitoring, Lighthouse, synthetic testing, Chrome DevTools traces, and product-level business metrics.
• Establish performance budgets, dashboards, and alerts
• Raise the performance capabilities of the broader organization through technical talks, workshops, documentation, mentoring, code reviews, and reusable tooling.

You Have

• Bachelor’s degree in Computer Science or related field (or equivalent practical experience)
• Deep expertise in modern front-end frameworks (React, Angular, Vue, Svelte, etc), TypeScript, JavaScript, HTML, and CSS, with experience operating in a front-end heavy high-traffic consumer web application.
• Expert-level proficiency with Chrome DevTools, React Profiler, Lighthouse, CPU profiles, flame charts, network waterfalls, and performance traces.
• Senior-level technical leadership skills, including identifying high-impact work independently, influencing architecture decisions, and advising teams outside your immediate area
• Strong understanding of browser internals, including JavaScript execution, style calculation, layout, painting, rasterization, and compositing
• Proven experience improving Core Web Vitals, including Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift using real-user data.
• Hands-on experience diagnosing memory leaks using heap snapshots, allocation profiles, garbage-collection analysis, and detached DOM-node detection.
• Ability to optimize rendering, hydration, bundle size, code splitting, main-thread work, third-party scripts, and frontend asset delivery.