Senior AI Engineer (LLM, RAG & Knowledge Graphs)

ERNI - Swiss Software Engineering; Bellprat; Híbrido; EUR 90.000 - 120.000; Jornada completa

Descripción de la vacante

ERNI - Swiss Software Engineering is seeking a senior AI/ML-focused software engineer to design and develop AI-powered capabilities using LLMs, RAG, and Synthetic AI Personas. You will build scalable backend services and enterprise integrations, collaborating with product owners, architects, and international teams.

The role centers on cloud-native microservices, knowledge graphs, and multi-provider LLM orchestration, with hybrid work arrangements and opportunities for mentoring and career

Formación

• Strong software engineering experience building production-grade applications with Python as the primary language, plus experience in TypeScript, Node.js, FastAPI, Java or Rust.
• Hands-on experience developing LLM-powered applications using cloud providers and multi-provider LLM orchestration.
• Proven experience designing RAG and GraphRAG solutions with knowledge graphs, embeddings, vector search, semantic chunking, and retrieval optimization.
• Experience implementing agentic AI workflows using LangChain, LangFuse or Haystack, including prompt orchestration, tracing, evaluation and observability.
• Strong experience designing cloud-native microservices and APIs with Snowflake, PostgreSQL, Docker, OpenShift, Kubernetes and CI/CD pipelines; collaboration with cross-functional international teams.

Responsabilidades

• Design and develop AI-powered capabilities based on LLMs, RAG and Synthetic AI Personas, building scalable backend services and enterprise integrations.
• Collaborate with product owners, architects and engineering teams to translate business requirements into reliable AI solutions, improving quality and scalability.
• Participate in architecture decisions and contribute to project planning and technical strategy.

Conocimientos

Python

TypeScript

Node.js

FastAPI

Java

Rust

LLMs

RAG

GraphRAG

Knowledge graphs

Embeddings

Vector search

OCR

Agentic AI

Herramientas

Azure OpenAI

OpenAI

Azure AI Services

Bedrock

Gemini

Anthropic

LangChain

LangFuse

Haystack

Snowflake

PostgreSQL

Docker

OpenShift

Kubernetes

CI/CD

Descripción del empleo

ERNI - Swiss Software Engineering is seeking a senior AI/ML-focused software engineer to design and develop AI-powered capabilities using LLMs, RAG, and Synthetic AI Personas. You will build scalable backend services and enterprise integrations, collaborating with product owners, architects, and international teams.

The role centers on cloud-native microservices, knowledge graphs, and multi-provider LLM orchestration, with hybrid work arrangements and opportunities for mentoring and career