Senior AI Engineer (Remote) - NLP, LLMs & Generative AI

Trueflag; España; Remote; EUR 90,000 - 140,000; Full time

Benefits offered by this job

Remote in Spain

Co-working Madrid/Vigo option

Off-sites and team-building

Job summary

Trueflag, born from Newtral, seeks a Senior AI Engineer to build AI/NLP models and libraries that support automated fact-checking. You will work with data scientists, engineers, and product teams to deploy scalable NLP solutions using LLMs, vector databases, and retrieval pipelines.

The role offers 100% remote work in Spain, with optional coworking spaces in Madrid or Vigo. Competitive salary for a senior position plus off-sites and team-building events are provided.

Qualifications

Responsibilities

• Develop AI/NLP models and libraries to support intelligent services and agents.
• Collaborate with data scientists, data engineers, MLOps specialists, and fact-checkers to design scalable NLP solutions.
• Turn research into production-ready code and pipelines with measurable business impact.

Skills

Python

MLOps

NLP

Transformers

PEFT

TRL

BERT

GPT

Sentence-BERT

VectorSearch

FineTuning

LangGraph

LangChain

LlamaIndex

Qdrant

OpenSearch

FAISS

ElasticSearch

MCP

Collaboration

Tools

LangChain

LlamaIndex

Qdrant

pgvector

OpenSearch

FAISS

ElasticSearch

Transformers

LangGraph

GoogleADK

smolagents

MCP

PyTorch

Numpy

Pandas

Scikit-learn

Job description

Trueflag, born from Newtral, seeks a Senior AI Engineer to build AI/NLP models and libraries that support automated fact-checking. You will work with data scientists, engineers, and product teams to deploy scalable NLP solutions using LLMs, vector databases, and retrieval pipelines.

The role offers 100% remote work in Spain, with optional coworking spaces in Madrid or Vigo. Competitive salary for a senior position plus off-sites and team-building events are provided.