Senior GenAI Software Engineer

Responsibilities: - Architect and ship AI systems that generate ad creatives end-to-end - including interactive playables - combining code generation, multimodal asset generation, and runtime quality into production-grade pipelines. - Rapidly prototype against real creative problems, then take what works from proof-of-concept to production at speed. - Partner closely with creative strategists, content leads, and builders to translate craft expertise into systems that scale. - Design robust systems that handle the inherent variability of AI-generated output through thoughtful guardrails, fallbacks, and quality gates. - Build evaluation infrastructure tailored to creative output, spanning subjective quality assessment, human-in-the-loop review, and A/B testing against real ad performance. - Drive innovation by researching new model capabilities and proposing new initiatives as the frontier moves. - Mentor the team and raise the bar on engineering practices, fostering an environment of open feedback and shared learning. Qualifications: - Minimum Bachelor's Degree and 5+ years of relevant experience. - Senior engineer with significant pre-LLM production experience and solid fundamentals in system design, debugging, and observability. - Strong in Python for AI/agent work and fluent in JavaScript/TypeScript for creative and playables work; HTML and gaming experience a plus. - Has shipped LLM-powered systems to production, understands failure modes, and makes deliberate choices about model integration versus hard-coded logic. - Treats evals as first-class infrastructure and brings hands-on production experience with multimodal AI, specifically image and/or video generation models. - Clear communicator who collaborates well across teams and disciplines, navigating ambiguity and adapting as priorities shift.