Principal Ai Engineer - Full Remote From Spain - Trueflag

Das ist der Job

Descripción del trabajo Would you like to join a cutting-edge tech project with a positive impact?

Darum lohnt es sich

As part of our AI team, you will join a group of passionate professionals exploring the potential of natural language processing (NLP), Generative AI, and multimodal models to detect fake news.

What do we offer? • Be part of an innovative project where your work will have a direct positive impact. • Join a leading engineering team that is diverse and fosters a great working environment. • 100% remote work from anywhere in Spain, with the option to work from a co-working space in Madrid or Vigo. • Off-sites and team-building events. • Flexible working hours. • Competitive salary aligned with the global market for a Principal Engineer (higher level of seniority).

Requirements: • Proficient in Python programming with over 7 years of experience. • Backend software engineering and MLOps expertise. • In-depth knowledge of machine learning techniques, algorithms, and natural language processing (NLP). • Skilled in data science libraries and frameworks such as Numpy, pandas (or accelerated alternatives, cuDF, polars), torch, scikit-learn. • Expertise in NLP and deep learning frameworks for LLMs (Transformers library, PEFT, TRL...) • 3+ years of experience using NLP models like BERT, GPT, and Sentence-BERT for vector search. • Skilled in training and fine-tuning ML models (including LLMs) and creating evaluation frameworks linking metrics to business impact. • Experienced in working with short development cycles. • Collaborative mindset, working closely with product architecture teams to integrate research and development into products.

From Newtral, Trueflag emerged as a spin-off with the mission of using GenAI and NLP methods to combat disinformation and fake news.

We are looking for a Senior AI Engineer who combines expertise in Python software development and deep learning techniques, with the ability to handle large datasets and tackle NLP problems with a strong business and customer-oriented mindset. We are looking for Senior AI Engineers with expertise in language technologies and Generative AI.

You will collaborate with data scientists, data engineers, MLOps specialists, and fact-checkers to design the next generation of intelligent systems capable of automated fact-checking. Your mission will be to develop AI/NLP models and libraries to support the intelligent services and agents we are building.

Bonus points: • Hands-on experience with RAG pipelines (Langchain, Llamaindex or related) and vector databases (Qdrant, pgvector, open search or related). • Expertise in designing and implementing with vector databases (Qdrant, ElasticSearch, FAISS, etc.). • Hands-on experience with agentic and workflow-based frameworks, such as LangGraph, Google ADK or smolagents.

MCP client-server protocol. Are you ready to take on this challenge?