Staff Backend Developer, Unity Ads

Unity Technologies; Canada; Remote; CAD 80,000 - 100,000; Full time

Job summary

A leading technology firm in Canada is seeking a Staff Backend Developer to join the Unity Ads team. This role involves designing and modernizing backend services that support ad delivery in a high-scale, low-latency environment. The ideal candidate should have experience building backend services at scale and proficiency in Golang and relational databases. Join a collaborative team focused on performance-critical systems, with a commitment to work-life balance and inclusivity.

Benefits

Wide range of benefits

Inclusive and innovative environment

Qualifications

• Experience building backend services at scale.
• Strong collaboration and communication skills in a remote-first team environment.

Responsibilities

• Design, build, and modernize backend services and APIs that support ad delivery.
• Work on scalable, high-availability systems used across Unity’s ads ecosystem.
• Improve performance, observability, and cost-efficiency of current backend systems.

Skills

Building backend services at scale

Proficiency in Golang

Understanding of API design

Collaboration skills

Tools

MySQL

Kubernetes

Ray

Job description

Unity is looking for a Staff Backend Developer to join our Unity Ads team, where we build the real-time systems that power Unity’s global advertising platform. This is a high-scale, low-latency environment — processing billions of requests daily to deliver fast, relevant ads to players around the world.

Our backend infrastructure is designed for reliability and scalability, ensuring seamless ad delivery and optimal performance even under heavy traffic. As part of the team, you will work on distributed systems that handle real-time ad requests, impression tracking, and user data analytics with strict requirements for uptime and security.

You’ll help modernize the legacy tech stack and the core services behind ad delivery, bidding, reporting, and analytics. This is a great opportunity for an engineer who’s excited to work on performance-critical systems, collaborate across teams, and grow in a fast-paced environment, all at a turning point in the company.

Responsibilities

• Design, build, and modernize backend services and APIs that support ad delivery
• Work on scalable, high-availability systems used across Unity’s ads ecosystem
• Collaborate with engineers, product managers, and data teams to deliver new features
• Improve performance, observability, and cost-efficiency of current backend systems, modernizing the legacy stack
• Contribute to architectural decisions and technical direction of the platform

Requirements

• Experience building backend services at scale
• Proficiency in Golang, and relational databases (e.g., MySQL)
• Familiarity with cloud infrastructure and observability tools (Kubernetes, Ray, etc.)
• Understanding of API design, distributed systems, and system reliability
• Strong collaboration and communication skills in a remote-first team environment

Nice to Have

• Experience in ad tech, programmatic advertising, or real-time bidding systems
• Background with infrastructure-as-code (e.g., Terraform)
• Familiarity with networking, caching, or real-time data pipelines

What We Offer

We offer a wide range of benefits designed to support employees' well-being and work-life balance.

Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law.