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Website: ontario.ca
On Holding AG is a Swiss athletic shoe and performance sportswear company that designs and markets sports clothing and running shoes.
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On invites applications for a full-time Agentic AI Platform Engineer based in London. This role centres on creating reliable infrastructure that supports autonomous AI agents and advanced agentic workflows. Role Overview The Agentic AI Platform Engineer at On in London will design, build and maintain production-grade platforms that let AI agents plan, execute and adapt across complex tasks. Working on site, you will turn research-grade agent capabilities into dependable systems that handle orchestration, tool use and continuous evaluation. The focus remains on scalable architecture that teams can trust for real-world agentic applications while collaborating closely with colleagues in the London office. Key Responsibilities Architect and evolve core platform components that host multi-agent systems and coordinate their reasoning cycles Integrate large language models, memory stores and external tools so agents can complete multi-step objectives reliably Construct orchestration services that manage agent planning, execution traces and recovery from failures Optimise platform performance for throughput, latency and resource efficiency under concurrent agent loads Establish monitoring, evaluation frameworks and feedback loops that measure agent behaviour and platform health Partner with neighbouring engineering and research teams to productionise new agentic capabilities safely Embed security, observability and ethical guardrails into every layer of the agentic AI platform Skills & Qualifications Solid command of Python together with hands-on experience of popular agent frameworks and LLM APIs Proven ability to build and operate cloud-native platforms using containers, Kubernetes and modern DevOps pipelines Working knowledge of vector search, retrieval techniques and memory systems that agents depend on Understanding of distributed systems design, service orchestration and modular software architecture Familiarity with evaluation methods that assess agent success rates, reliability and cost efficiency Clear communication and collaborative habits suited to an on-site engineering group in London About On On is hiring for this role and offers a supportive team environment. Applying for This Role To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.
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