Principal Software Engineer, Full-Stack Development

Zynga•Toronto, ON

3d•CA$118,300 - CA$168,300

About The Position

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.

Requirements

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, and engineering teams on technical implementations and rollouts

Nice To Haves

Familiarity with MCP or similar tool-integration protocols a plus
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

Responsibilities

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.

Benefits

medical, dental, vision, and basic life insurance coverage
14 paid holidays per calendar year
paid vacation time per calendar year (ranging from 15 to 25 days) or eligibility to participate in the Company’s discretionary time off program
up to 10 paid sick days per calendar year
paid parental and compassionate leave
wellbeing programs for mental health and other wellness support
family planning support through Maven
commuter benefits
reimbursements for fitness-related expenses
401(K) plan
Employee Stock Purchase Program