Zendesk

Staff Software Engineer - AI Copilot (Backend)

Zendesk
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3 days ago
Lisbon, PortugalStaff+

Responsibilities

  • Drive the technical vision and architecture for the Admin Copilot Conversational backend, including LLM orchestration, intent detection, context retrieval, and tool execution.
  • Own complex cross-cutting features from technical design through implementation, release, and production operation.
  • Set engineering standards, make architecture decisions, and ensure reliable and scalable systems.
  • Collaborate with ML Scientists, Product Management, Design, and partner engineering teams on the product roadmap.
  • Influence technical direction across the Copilot organization and adjacent teams.
  • Design and improve evaluation frameworks, guardrails, and safety mechanisms for production LLM features.
  • Mentor engineers through technical guidance, code review, and pairing.
  • Identify and address technical risks, performance bottlenecks, and reliability gaps.

Requirements

  • 8+ years of software engineering experience with demonstrated technical leadership in backend systems.
  • Strong experience designing and building distributed systems at scale, including APIs, service architectures, and data pipelines.
  • Production experience integrating LLMs through orchestration, prompt engineering, evaluation, guardrails, or multi-provider systems.
  • Fluency in at least one backend language such as Ruby, Python, or Go, with working proficiency across multiple languages.
  • Deep understanding of AWS, Docker, Kubernetes, and CI/CD practices.
  • Experience driving technical direction through architecture decisions, technical roadmaps, and cross-team alignment.
  • Preferred experience with conversational AI or chat systems, ML infrastructure, model serving, inference pipelines, or evaluation frameworks.
  • Preferred familiarity with Metaflow, MLflow, event-driven architectures such as Kafka, SQL, Snowflake, and dbt.
  • Preferred experience mentoring or technically leading a team of three or more engineers.

Benefits

  • Hybrid work arrangement with in-person collaboration at Zendesk offices and flexibility to work remotely part of the week.

Tech Stack

Zendesk

About Zendesk

5,001-10,000 employees

Zendesk builds a cloud-based customer service and contact center platform that unifies ticketing, messaging, voice, knowledge base, and AI-driven automation for businesses. It sells SaaS subscriptions and add-ons to companies across industries; founded in 2007 and headquartered in San Francisco, Zendesk is privately held under Hellman & Friedman after being taken private, and supports omnichannel CX and employee service workflows.

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