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We are seeking a full-stack engineer who operates at the convergence of product development, growth strategy, and automation workflows. If you can resolve complex technical issues efficiently, implement robust Next.js/React solutions that withstand rigorous regression testing, and configure Firebase/GCP infrastructure while establishing dependable attribution pipelines via Meta Pixel and Google Tags, you will deliver outcomes that enhance conversion visibility and reduce manual overhead.
Your core objective is straightforward: maintain system stability, ensure the growth infrastructure remains measurable, and eliminate repetitive manual work through automation. We do not construct "platforms" as abstract exercises. Engineering is directly connected to marketing and product functions so that data-driven decisions emerge from fully instrumented funnels. This requires stable deployment cycles, real-time performance metrics, dependable tracking mechanisms, and rapid ship-to-impact feedback loops measured in days rather than weeks.
This position combines building with maintaining. You will be responsible for preserving foundational stability while accelerating team velocity—resolving issues promptly, creating processes or scripts to handle recurring QA needs, validating updates through regression suites, and instrumenting user journeys so that insights remain consistently accurate. If you value tangible impact, continuous learning, and the satisfaction of transforming fragmented workflows into streamlined systems the entire organization depends on, take ownership of this mandate. Apply if you are prepared to own reliability, integration quality, and the automation infrastructure that enables organizational speed.
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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