Ubisoft

Site Reliability Engineer – AI Applications (M/W/X)

Ubisoft
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17 days ago
Saint-Mandé, FranceSenior

Responsibilities

  • Operate and improve the reliability, scalability, and performance of the AI platform, including AI Gateway, MCP servers, LLM serving, retrieval services, and related components.
  • Define and maintain SLOs, SLIs, and error budgets to guide reliability and platform stability decisions.
  • Build observability for infrastructure, services, and AI-specific signals including latency, token throughput, provider errors, cost, saturation, and quality indicators.
  • Improve model and API serving performance, efficiency, and cost across cloud, containerized, and high-throughput environments.
  • Design graceful degradation, fallback, and failover strategies across models, providers, and regions.
  • Maintain deployment practices using GitLab CI/CD, infrastructure as code, automated testing, and progressive delivery.
  • Lead or contribute to incident response, post-incident reviews, capacity planning, and reliability improvements.
  • Partner with software engineers, data scientists, ML engineers, security teams, and product stakeholders to productionize AI services.
  • Establish operational standards, runbooks, dashboards, and best practices for AI application reliability.

Requirements

  • Proven experience in SRE, platform engineering, backend engineering, or infrastructure roles in compute-intensive, data-intensive, or distributed environments.
  • Strong understanding of SLOs, error budgets, observability, capacity planning, incident management, and post-incident analysis.
  • Strong programming skills in Python and practical experience with Rust, or willingness to work deeply with Rust-based services.
  • Hands-on experience with cloud platforms, Docker, Kubernetes, and production-grade service operations.
  • Experience building and maintaining CI/CD pipelines, preferably with GitLab, and working with infrastructure as code.
  • Understanding of distributed systems, microservices, APIs, networking fundamentals, and production debugging.
  • Ability to work in a fast-changing AI ecosystem while applying SRE rigor and risk awareness.
  • Clear communication and cross-functional collaboration skills.
  • Nice-to-have experience with AI gateways, MCP servers, LLM serving stacks, model routers, or provider abstraction layers.
  • Familiarity with RAG, agentic architectures, embeddings, vector databases, hybrid search, query processing, tool use, or agent orchestration.
  • Experience with GPU-backed inference, high-throughput serving, batching, caching, autoscaling, or model performance optimization.
  • Experience with serverless, event-driven systems, queues, streaming platforms, or asynchronous processing.
  • Familiarity with AI safety, governance, auditability, data privacy, or secure-by-design platform practices.
  • Open-source contributions, technical writing, talks, or publications in relevant engineering, reliability, or AI infrastructure fields.

Benefits

  • Permanent contract.
  • Office-based work in Saint-Mandé, with stated work flexibility limited to office-based attendance.
  • Profit sharing and a yearly company savings plan.
  • 25 paid time-off days plus 12 additional paid days off.
  • 50% of the transportation pass paid by the company.
  • Lunch vouchers valued at 9€ per day.
  • Healthcare coverage for the employee and family.
  • 20 weeks of maternity leave and 7 weeks of paternity/co-parental leave.
  • Additional Ubisoft perks and access to an on-site gym.

Tech Stack

Categories

Site Reliability
Ubisoft

About Ubisoft

10,000+ employees

Ubisoft develops and publishes video games for console, PC, and mobile players worldwide, monetized through premium titles, downloadable content, live services, and the Ubisoft+ subscription. Founded in 1986 and headquartered in Saint-Mandé, France, it operates studios globally and is publicly traded on Euronext Paris. Franchises include Assassin’s Creed, Far Cry, Tom Clancy’s Rainbow Six, and Just Dance.

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