Principal Software Engineer, Full-Stack Development

Zynga; Toronto; On-site; CAD 118,000 - 168,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

14 paid holidays

15–25 days vacation

Up to 10 paid sick days

Parental & compassionate leave

Wellbeing programs

Maven family planning support

Commuter benefits

Fitness reimbursements

Job summary

Zynga seeks an experienced Principal Software Engineer to lead the AI tools team within Central Technology. You will craft the technical vision, design, and implementation of AI-powered developer tools that enhance productivity and player experiences at scale.

Expect hands-on work across frontend and backend, cloud integrations, and collaboration with product, design, and engineering. Competitive compensation and equity are offered in a dynamic, globally connected studio environment.

Qualifications

• BS in Computer Science or equivalent.
• 6+ years of hands-on software development experience with AI/ML systems or developer tooling.
• Strong full stack experience (React, TypeScript) and backend (Python, GoLang, Node.js).
• Experience designing LLM-powered apps, agentic workflows, or AI developer tools.
• Experience with RESTful services and event-driven architectures; MCP-like integrations are a plus.
• Experience with SQL/NoSQL databases and cloud (AWS, GCP).
• OO and SOA design of scalable applications and systems.
• Cross-functional collaboration with product, design, and engineering.

Responsibilities

• Build and maintain AI-powered developer tools and apps across the full stack.
• Design scalable AI systems and cloud integrations with LLM features.
• Write and review frontend and backend code for the AI tooling ecosystem.
• Identify and propose improvements to reduce tech debt and boost AI capabilities.
• Follow best practices for code quality, performance, and responsible AI.
• Collaborate with teams across Zynga on AI tooling and productivity.
• Review technical plans to align with the AI tools roadmap.
• Provide production and integration support for shared AI tools.

Skills

Full-stack development

AI/ML systems

RESTful services

Cloud infra (AWS/GCP)

Dev tooling

Education

B.S. in Computer Science

Tools

React

TypeScript

Python

GoLang

Node.js

MCP protocols

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, and engineering teams on technical implementations and rollouts

What We Offer You

Zynga offers a world‑class benefits package that helps support and balance the needs of our teams. To find out more about our benefits, visit the Zynga Benefits site.

The pay range for this position in Ontario at the start of employment is expected to be between $118,300 and $168,300 CAD per Year. However, base pay offered is based on market location, and may vary further depending on individualized factors for job candidates, such as job-related knowledge, skills, experience, and other objective business considerations. Subject to those same considerations, the total compensation package for this position may also include other elements, including a bonus and/or equity awards and eligibility to participate in our 401(K) plan and Employee Stock Purchase Program.

• 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

The use of Artificial Intelligence is not being used to screen candidates. The position is for an existing vacancy.

Please note that Zynga is unable to provide visa sponsorship or assistance for this position. All candidates must be legally authorized to work in the United States without requiring current or future employer sponsorship.

We are proud to be an equal opportunity employer, which means we are committed to creating and celebrating diverse thoughts, cultures, and backgrounds throughout our organization. Employment with us is based on substantive ability, objective qualifications, and work ethic – not an individual’s race, creed, color, religion, sex or gender, gender identity or expression, sexual orientation, national origin or ancestry, alienage or citizenship status, physical or mental disability, pregnancy, age, genetic information, veteran status, marital status, status as a victim of domestic violence or sex offenses, reproductive health decision, or any other characteristics protected by applicable law.

As an equal opportunity employer, we are committed to providing the necessary support and accommodation to qualified individuals with disabilities, health conditions, or impairments (subject to any local qualifying requirements) to ensure their full participation in the job application or interview process. Please contact us at [e-mail] to request any accommodations or for support related to your application for an open position.