LLM Engineer

44 - 49 USDNet per hour - B2B
AI/ML

LLM Engineer

AI/ML
-, Lisbona +4 Locations

SNI

Full-time
B2B
Senior
Remote
44 - 49 USDNet per hour - B2B

Job description

SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide.

Scope:

  • Design and implement end-to-end Generative AI solutions using Python

  • Build agentic AI systems and workflows using frameworks such as LangGraph, tool/function calling, MCP, and multi-agent orchestration

  • Develop advanced RAG pipelines (ingestion, chunking, embeddings, vector search, re-ranking, grounding validation)

  • Implement memory architectures (short-term, long-term, summarised, and vector-based memory)

  • Integrate, evaluate, and optimize multiple LLMs (e.g., GPT-4.x, GPT-4o)

  • Build structured output and tool-calling systems with schema validation

  • Design evaluation frameworks for hallucination detection, quality scoring, latency, and cost efficiency

  • Implement Responsible AI guardrails, including input/output filtering and fallback mechanisms

  • Collaborate with DevOps / LLMOps teams for deployment, monitoring, scaling, and cost optimization

Skills:

  • Strong hands-on Python development (mandatory)

  • Experience with GenAI frameworks such as LangChain, LangGraph, and CrewAI

  • Deep understanding of agentic AI systems, orchestration, and tool integration

  • Experience with Azure AI Foundry and Azure OpenAI Service

  • Familiarity with vector databases (Azure AI Search, Pinecone, Weaviate, OpenSearch)

  • Understanding of tokenization, context windows, rate limits, and LLM cost optimization

  • Experience with API integration, asynchronous programming, and resilient system design

  • Strong knowledge of Responsible AI principles and risk mitigation techniques

Follow us on Linkedin! http://linkedin.com/company/snisourcing/

Tech stack

    English

    C1

    Python

    master

    GenAI

    master

    Langchain

    master

    RAG

    master

Office location

About the company

SNI

Since 2005, SNI has been a reliable outsourcing partner, delivering tailored IT, SAP, AI, and Data solutions to leading organizations across global markets. We drive transformative projects that align with our clients’ s...
Company profile

LLM Engineer

44 - 49 USDNet per hour - B2B
Summary of the offer

LLM Engineer

-, Lisbona
SNI
44 - 49 USDNet per hour - B2B
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