Engineering Team Lead

Description A winning ad could change the trajectory of a mobile game. The only way to consistently find winners is to explore more, faster, and smarter than anyone else. Sett is a UA creative performance platform for mobile gaming. We build agentic AI systems that analyze performance data, generate diverse playable and video ad concepts, deploy them to ad networks, and continuously learn from the results. The full creative loop. Automated, and done better than humans only. Our system doesn't remix templates. It creates fundamentally different creative hypotheses, each one built from real performance signals. Sett is looking for a Engineering Team Lead to join our out-of-this-world, cross-functional team. If you love taking ownership, enjoy working across the stack, and aren’t afraid to dive into new technologies, this might be your perfect role. Responsibilities Leading a squad of 3-4 developers while remaining 100% hands-on Own end-to-end feature development - from design and coding to testing and production Work on LLM based applications Collaborate with team members through design/code reviews and open discussions Partner closely with research and engineering to deliver impactful solutions Requirements 3+ years of experience leading engineering teams, including mentoring, hiring, and performance management - MUST Hands-on, day-to-day use of LLMs in development workflows - MUST Strong hands-on experience with Python (4+ years) - MUST Proven expertise in designing and scaling large-scale, high-availability systems - MUST Demonstrated end-to-end ownership of complex backend systems, from architecture to production and ongoing maintenance Experience defining technical direction, making architectural decisions, and aligning engineering execution with business goals Strong understanding of distributed systems, microservices, cloud infrastructure, and observability best practices Hands-on leader with the ability to dive deep into code while guiding and unblocking the team Curiosity, strong ownership mindset, and a passion for building high-quality, impactful technology Experience with agentic workflows and AI orchestration frameworks – advantage