Senior Engineer, Growth

What You'll Do Here

• Own the activation funnel: Rebuild the submission funnel end to end, instrument every step, and run a real experimentation loop, including A/B testing and re-engagement for users who exit without submitting.
• Scale acquisition channels: Figure out which channels actually acquire users on both sides (lifecycle, SEO, AEO, paid, mobile ads) and build the machinery to scale the ones that work. This includes agentic optimization: how Alt ranks and shows up in ChatGPT, Claude, Gemini, and other assistants.
• Fix the data + attribution foundation: The unlock for everything else. Stand up clean attribution, consolidate our product analytics into a single source of truth, and modernize our messaging and deep-linking stack so we can finally tell what's moving the needle.
• Build lifecycle infrastructure: Turn push, in-app, email, and SMS into an owned, instrumented system rather than per-campaign setups, including SMS opt-in compliance.
• Balance the marketplace: Watch the balance across bidders, buyers, and sellers, and build growth into the weak side.

What You Bring To The Table

• 5+ years of engineering experience with strong backend (Python, Postgres, AWS or similar) and frontend (React, React Native, JavaScript/TypeScript) chops
• A track record of owning growth systems or product features from design to production
• Fluency with growth tooling and analytics, including experimentation/A/B frameworks, product analytics (PostHog, Amplitude, or similar), attribution (AppsFlyer or similar), and lifecycle platforms
• A sharp instinct for funnels, instrumentation, and turning messy data into clean, trustworthy signal
• Strong collaboration and communication. You write great docs, ask smart questions, and give thoughtful feedback

Compensation

$160,000-$180,000

What You'll Get From Us

• Direct impact: A founding seat owning the growth engine for the whole marketplace, a ground-floor opportunity with a metric the whole company watches.
• Autonomy: High-trust environment with ownership over critical, revenue-driving surfaces and the freedom to make product-grade bets.
• Stipends: $100/mo WFH, $200/mo wellness, and WeWork office access.
• Benefits: 401(k), flexible vacation, generous parental leave, and top-tier healthcare (HSA included).