Principal Software Engineer, Full-Stack Development

Job description

Level Up Your Career with Zynga! At Zynga, we bring people together through the power of play. As a global leader in interactive entertainment and a proud label of Take-Two Interactive, our games have been downloaded over 6 billion times—connecting players in 175+ countries through fun, strategy, and a little friendly competition. From thrilling casino spins to epic strategy battles, mind-bending puzzles, and social word challenges, our diverse game portfolio has something for everyone. Fan-favorites and latest hits include FarmVille™, Words With Friends™, Zynga Poker™, Game of Thrones Slots Casino™, Wizard of Oz Slots™, Hit it Rich! Slots™, Wonka Slots™, Top Eleven™, Toon Blast™, Empires & Puzzles™, Merge Dragons!™, CSR Racing™, Harry Potter: Puzzles & Spells™, Match Factory™, and Color Block Jam™—plus many more! Founded in 2007 and headquartered in California, our teams span North America, Europe, and Asia, working together to craft unforgettable gaming experiences. Whether you're spinning, strategizing, matching, or competing, Zynga is where fun meets innovation—and where you can take your career to the next level. Join us and be part of the play! Position Overview Come join the AI team at Zynga making an impact across all of the company's games - Central Technology! As a Principal Software Engineer, you will be responsible for the technical vision, design and implementation of AI-powered tools and systems that elevate developer productivity and player experiences at scale. We're looking for outstanding engineers with a passion for artificial intelligence and the desire to work in a team with dynamic strengths. What You'll Do: Build, improve & maintain Zynga's AI-powered developer tools and applications across the full stack, spanning frontend interfaces, APIs, and backend services. Design and architect scalable AI systems and integrations running in cloud infrastructure, including LLM-powered features, agentic workflows, and MCP-based services. Take a hands-on approach in architecting, writing, and reviewing code across frontend and backend layers of the AI tooling ecosystem. Proactively identify & recommend improvements to address systemic problems, tech debt, and opportunities to enhance AI capabilities across the platform. Follow engineering best practices to ensure code quality, performance, reliability, and responsible AI development standards. Collaborate effectively with teammates, product, and stakeholders across Zynga, contributing to an innovative environment of technical excellence in AI tooling. Review detailed tech plans from others, aligning with the AI tools team and Zynga-wide technical vision for AI-driven developer productivity. Provide production & integration support for shared AI tools and services used across Zynga's game studios and development teams. What You Bring: B.S. in Computer Science, or equivalent 6+ years of hands-on software development experience, with significant exposure to AI/ML systems or developer tooling Strong full stack programming experience across frontend (React, TypeScript) and backend (Python, GoLang, and/or Node.js) Experience designing and building LLM-powered applications, agentic workflows, or AI developer tools Experience in programming RESTful and event-driven services, with familiarity with MCP or similar tool-integration protocols a plus Experience with database systems (SQL, NoSQL) and cloud infrastructure (AWS, GCP) Experience in object-oriented and service-oriented design of scalable applications and systems Familiarity with IDE extensions, CLI tooling, or browser-based developer tools a plus Knowledge of the evolving AI/ML landscape, emerging foundation models, and responsible AI practices a plus Experience working cross-functionally with product, design