Staff Backend Engineer, ML Inference Systems

About the role

The Vector Gamer AI team at Unity connects billions of players with the games and experiences they love. We are seeking a Staff Backend Engineer to build and operate the infrastructure that powers these experiences.

Responsibilities

• Design, develop, and deploy production-grade backend services and distributed systems powering large-scale online model inference at billions of daily requests
• Drive technical direction of our inference platform, focusing on low-latency, high-throughput serving infrastructure
• Partner with ML engineers to ensure online serving infrastructure scales with growing model complexity and inference volumes, without compromising latency or throughput
• Ensure the reliability, scalability, and efficiency of our systems in production using monitoring and observability tools like Prometheus and Grafana
• Manage and optimize cloud infrastructure on GCP, orchestrating workloads with Kubernetes across a high-scale production environment
• Promote and implement best practices for backend service development, testing, deployment, and monitoring (DevOps, SRE)

Requirements

• 5+ years designing, deploying, and maintaining distributed systems at scale
• Expertise in Golang for building high-performance, low-latency backend infrastructure
• Hands-on experience with cloud infrastructure on GCP and workload orchestration with Kubernetes
• Strong grounding in monitoring and observability tooling, including Prometheus and Grafana
• Experience in ad tech, recommender systems, real-time personalization, or other performance-critical domains
• Familiarity with microservice architectures, containerization (Docker), and CI/CD best practices
• Familiarity with machine learning platforms, workflows, and serving infrastructure

Qualifications

• Experience with ML inference servers like NVIDIA Triton Inference Server
• Familiarity with auction mechanics or bidding systems in an ad tech context

Skills

• Technical leadership and problem-solving skills
• Experience with cloud-native technologies
• Strong analytical and troubleshooting skills
• Excellent communication and collaboration skills

Benefits

Unity offers a comprehensive benefits package including:

• Comprehensive health, life, and disability insurance
• Commute subsidy
• Employee stock ownership
• Competitive retirement/pension plans
• Generous vacation and personal days
• Support for new parents through leave and family-care programs
• Office food snacks
• Mental Health and Wellbeing programs and support
• Employee Resource Groups
• Global Employee Assistance Program
• Training and development programs
• Volunteering and donation matching program

Pay

Gross pay annually: USD $244,500 - $317,800

Schedule

Full-time, remote position