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We are seeking a full-stack engineer who operates at the convergence of product development, growth strategy, and automation. If you can identify and resolve complex issues efficiently, write robust Next.js/React code that withstands thorough regression testing, and orchestrate Firebase/GCP infrastructure while ensuring accurate attribution data flows from Meta Pixel and Google Tags, your contributions will directly enhance conversion tracking and reduce operational overhead.
Your core mission is straightforward: maintain system stability, ensure the growth infrastructure is fully measurable, and eliminate manual repetitive tasks through automation. We do not construct "platforms" as theoretical exercises. Instead, we connect engineering directly to marketing and product functions so that decisions are informed by instrumented conversion funnels. This translates to consistent deployments, real-time performance metrics, dependable tracking implementations, and rapid iteration cycles measured in days rather than weeks.
This position combines building with maintaining. You will serve as the individual who preserves foundational stability while enabling organizational velocity—delivering timely fixes, creating reusable processes or scripts to address recurring QA requirements, confirming changes through regression validation, and instrumenting user journeys to ensure insight accuracy. If you find fulfillment in tangible impact, accelerated learning, and transforming chaotic pipelines into streamlined systems that empower the entire team, this responsibility is yours to claim. Apply if you are prepared to take ownership of reliability, integrations, and the automation layer that accelerates the broader 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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