We are looking for a full-stack engineer who operates at the convergence of product, growth, and automation. If you can troubleshoot complex issues efficiently, write clean Next.js/React code that withstands regression testing, and configure Firebase/GCP while ensuring reliable attribution data flows from Meta Pixel and Google Tags, you will deliver work that directly enhances conversion visibility and reduces operational overhead.
Your mission is straightforward: maintain core stability, ensure the growth engine is measurable, and eliminate manual work through automation. We do not build "platforms" as an end in themselves. We connect engineering directly to marketing and product so that decisions are informed by instrumented funnels. This means stable deployments, real-time performance metrics, dependable tracking, and rapid ship-to-impact cycles measured in days.
This is a builder and maintainer position. You will be the individual who ensures the foundation remains stable while enabling velocity—deploying fixes swiftly, creating processes or scripts for recurring QA requests, validating updates with regression tests, and instrumenting the user journey so insights remain trustworthy. If you excel at delivering visible impact, learning rapidly, and transforming a disorganized pipeline into a streamlined system the entire team depends on, take ownership of this responsibility. Apply if you are prepared to own the reliability, integrations, and automations that accelerate the rest of the organization.
Crossover's skill assessment process combines innovative AI power with decades of human research, to take the guesswork, human bias, and pointless filters out of recruiting high-performing teams.






It’s super hard to qualify—extreme quality standards ensure every single team member is at the top of their game.
Over 50% of new hires double or triple their previous pay. Why? Because that’s what the best person in the world is worth.
We don’t care where you went to school, what color your hair is, or whether we can pronounce your name. Just prove you’ve got the skills.
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