Senior Backend Engineer, AI Engineering: Chat

gitlab·RemoteRemotosenior

En corto

→Ingeniero backend senior que construye flujos inteligentes de IA para Chat en GitLab.
→Trabajas con Python, LangGraph y el monolito Rails para integrar modelos de lenguaje y flujos multi-agente.
→Destacado: Eres parte clave en el corazón de la estrategia de IA de GitLab, donde tu código impacta directamente la experiencia del usuario.

Proficiency in English is required for collaboration with global teams.

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¿Qué piden?

✓Experiencia sólida en desarrollo backend con Python.
✓Conocimiento profundo de LangGraph y arquitecturas de flujos agenticos.
✓Experiencia en integración de modelos de lenguaje generativos (LLMs).
✓Habilidades en diseño de APIs REST y GraphQL.
✓Experiencia trabajando con monolitos (Rails) y servicios distribuidos.
✓Capacidad para liderar la implementación de features completas desde inicio hasta producción.

¿No cumplís todo? Es lo normal — tu dossier gratis te dice qué gaps tenés y cómo cubrirlos en la entrevista.

PythonLangGraphDuo Workflow ServiceGitLab Rails monolithGraphQLRESTpytestRSpecGitLab CI/CDDocker

¿A quién escribirle en gitlab?

Tu dossier gratis identifica a las personas que te entrevistarían — con su background, qué valoran y cómo escribirles para destacar antes de aplicar.

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Backend Engineer on the Duo Chat team, focused on Chat Engine, you'll build the core AI capabilities behind GitLab Duo Chat, the natural-language and agentic interface to the GitLab DevSecOps platform. Much of your work will involve building flow components and agentic flows in the Flow Registry, the Python framework built on LangGraph within our Duo Workflow Service that powers agentic chat, and integrating them with the GitLab Rails monolith. You'll own complex backend features from start to finish across both services. You'll integrate large language models and orchestrate multi-agent flows so customers can work faster and more securely across the software development lifecycle. This work sits where GitLab's core platform meets its AI strategy, and reliability, performance, and answer quality directly shape the customer experience. What you’ll do • Design and build flow components and agentic flows in the Flow Registry using Python and LangGraph within the Duo Workflow Service. These reusable building blocks power agentic Duo Chat and, increasingly, other AI features across GitLab. • Develop, ship, and maintain backend features for GitLab Duo Chat across the Python Duo Workflow Service and the GitLab Rails monolith in a secure, well-tested, and performant way. • Integrate new generative AI models, providers, tools, and multi-agent orchestration patterns into Duo Chat to expand its capabilities and improve answer quality. • Design, implement, and review GraphQL and Representational State Transfer (REST) application programming interfaces (APIs) and related monolith logic, including chat entry points, permissions, and foundational-flow registration. Keep contracts with frontend clients and host systems reliable and clear. • Improve debugging, observability, and test coverage using pytest, RSpec, and related frameworks; track and improve latency, error rates, and test coverage so AI-powered chat workflows stay reliable at scale. • Collaborate with Product, User Experience (UX), frontend, and AI specialists to refine requirements and deliver high-quality improvements through iteration. • Document standards, patterns, and learnings with other engineers, raising the bar for safe AI integration and evidence-driven engineering. • Participate in Tier 2 on-call rotations to troubleshoot production issues, contribute to root

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