Top Tech Jobs & Startup Jobs in Montreal

Design and scale AI agent systems in Unity for goal-directed behavior, planning, decision-making, and persistent world modeling. Develop reusable agentic frameworks and ML models, optimize real-time performance, and lead reinforcement learning, NPC planning, and agent memory initiatives. Establish model evaluation and AI safety practices, collaborate across teams, contribute to product strategy, and mentor engineers and researchers.

Design and deliver scalable cloud services and full-stack features for a next-generation game creation platform. Optimize cloud applications, apply service architecture patterns, use agentic AI tools such as Claude Code, and manage CI/CD, monitoring, and database maintenance. The role also drives technical direction, aligns with leadership, and collaborates with AI, infrastructure, and data teams.

Design, build, and modernize high-scale, low-latency backend services and APIs for ad delivery. Work on distributed systems, performance, observability, cost efficiency, and architecture while collaborating with product, data, and engineering teams in a remote-first environment.

Drive the mobile platform roadmap to ensure developers can ship high-performing games across mobile hardware. Collaborate with engineering and customers to define requirements, validate features, align platform partners, translate technical roadmaps for executives, and surface cross-team concerns using data and feedback to prioritize work.

Develop and maintain Web graphics features for Unity's WebGL/WebGPU pipeline. Improve performance, stability and testability, collaborate with platform and GPU partners, participate in design and code reviews, and build automated tests for new functionality.

Lead design, build, and operation of global CI/CD, automation, and orchestration platforms for RT3D applications. Develop customizable workflow features, evolve core systems as CLI tools and microservices, integrate with RT3D engines and asset SDKs, drive technical design, lead projects, and mentor other developers within a distributed Agile team.

Design, build, and operate scalable, low-latency backend services and distributed inference systems for internal AI tooling. Architect core services for agent orchestration, manage GCP infrastructure and Kubernetes workloads, implement observability with Prometheus/Grafana, and drive DevOps/SRE best practices across teams.

Join Unity's Monetization team in Montreal to design, implement, test, and improve the Unity Mediation SDK and extend the Unity engine. Own feature lifecycles, write scalable high-quality code and automated tests, mentor teammates, collaborate with distributed cross-functional teams, and build tools (including AI-driven) to enhance developer productivity and monetization capabilities.

Lead end-to-end design and implementation of Diagnostics backend: high-throughput Go services, ingestion and OpenTelemetry pipelines, ClickHouse-based storage and queries, and dashboard surfaces. Collaborate cross-team, mentor engineers, raise code-review and AI-agent workflow standards, and ensure reliability, performance, and secure data handling.

Design, build, test, and maintain Unity's monetization backend systems focused on content moderation, fraud prevention, and privacy compliance. Develop low-latency APIs, distributed services, deduplication and labeling tools, and fraud-detection/enrichment pipelines. Collaborate in a remote-first team to deliver scalable, high-quality code and meet project priorities and deadlines.