Postúlate en Kit Empleo: kitempleo.com.ar/empleo/pzr3h

We are building secure, scalable AI-driven API services in our AI Pods team, using LLM orchestration to connect language models with internal systems and tools.As a Lead Backend Developer, you will own API contracts and reliability while engineering evaluation, observability, fallbacks, and cost-aware patterns for distributed services.Join us and apply now.ResponsibilitiesDesign and implement backend API services paired with LLM orchestration layersBuild and maintain advanced RAG pipelines including document ingestion, chunking, embedding, and retrieval tuningDevelop and integrate agent tools with LangChain, LangGraph and potentially MCP (Model Context Protocol)Enforce security, privacy, enterprise-grade observability, and test coverage across backend workflowsLead architecture decisions and uphold engineering standards within the podCollaborate with frontend engineers, data engineers and infrastructure teams to deliver end-to-end capabilitiesOwn API contracts and service reliability, ensuring graceful handling of AI edge cases and failuresProvide stable, reusable orchestration frameworks and logic intended for downstream developer useRequirementsProven backend engineering experience (5+ years) focused on microservices and distributed systemsHands-on Python experience (3+ years) building high-performance backend services and cloud-native APIsExpert-level knowledge of AWS,



Docker and ECS/EKS in production environmentsSolid experience designing and delivering RESTful API servicesStrong understanding of secure coding practices with dependable auth/authz fundamentalsNice to have2+ years of production experience with AI SDKs such as OpenAI, Anthropic/Claude or AWS BedrockExposure to vector stores (Amazon Kendra, OpenSearch) plus embedding strategies and retrieval systemsPractical experience delivering solutions with agentic frameworks like LlamaIndexHands-on use of AI evaluation tooling or real-time APM platforms such as LangSmith, Langfuse, Arize2+ years building React and TypeScript features alongside large-scale EKS deploymentsFamiliarity with agent interoperability patterns (MCP), identity/security domains (IAM, CIAM) and additional languages such as Java, Node.Js or GoWe offerInternational projects with top brandsWork with integral teams of highly skilled, diverse peersEmployee financial programsPaid time off and sick leaveUpskilling, reskilling and certification coursesUnlimited access to the LinkedIn Learning library and 22,000+ coursesGlobal career opportunitiesVolunteer and community involvement opportunitiesEPAM Employee GroupsAward-winning culture recognized by Glassdoor, Newsweek and LinkedIn#J-*****-Ljbffr

Postúlate en Kit Empleo: kitempleo.com.ar/empleo/pzr3h

📌 Lead Backend Developer (Argentina)
🏢 EPAM Systems
📍 Argentina