AI Research Engineer (Pretraining)

JR Spain; Barcelona; A distancia; EUR 70.000 - 90.000; Jornada completa

Descripción de la vacante

A leading fintech company in Barcelona is seeking an innovative AI engineer to work on architecture development for AI models. This role requires expertise in LLM architectures and pre-training optimization. Candidates should hold a degree in Computer Science or a related field, preferably a PhD, and have practical experience with large-scale distributed training. The company offers a chance to join a passionate remote team dedicated to fintech innovation.

Formación

• Strong publication record in NLP or Machine Learning.
• Practical experience with large-scale distributed training.

Responsabilidades

• Conduct pre-training of AI models on large, distributed GPU servers.
• Design and prototype scalable architectures.
• Execute experiments, analyze results, and refine methodologies.
• Improve model efficiency and computational performance.
• Advance training systems for scalability and efficiency.

Conocimientos

LLM architectures

Pre-training optimization

PyTorch

Hugging Face

Transformer models

Educación

Degree in Computer Science or related fields

PhD in NLP or Machine Learning

Descripción del empleo

Social network you want to login/join with:

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Client:

Tether Operations Limited

Location:

Barcelona, Spain

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

916192518958638694432460

Job Views:

1

Posted:

23.07.2025

Expiry Date:

06.09.2025

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Job Description:

Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, at a fraction of the cost. Transparency is our foundation, ensuring trust in every transaction.

Innovate with Tether

Tether Finance: Our product suite features the trusted stablecoin USDT and digital asset tokenization services.

Additional initiatives include:

• Tether Power: Sustainable energy solutions for Bitcoin mining using eco-friendly practices.
• Tether Data: AI and peer-to-peer technology innovations, including our app KEET.
• Tether Education: Digital learning access for individuals in the digital and gig economies.
• Tether Evolution: Merging technology and human potential for unprecedented innovation.

Why Join Us?

Our global remote team is passionate about fintech innovation. Join us to work with top talent, set new standards, and contribute to a leading industry platform. Excellent English communication skills are essential.

Are you ready to be part of the future?

About the job:

As part of the AI model team, you will innovate in architecture development for models of various scales, including small, large, and multi-modal systems, enhancing AI capabilities and efficiency.

Your expertise in LLM architectures and pre-training optimization will drive research and implementation of novel techniques, addressing bottlenecks and pushing AI performance limits.

Responsibilities:

• Conduct pre-training of AI models on large, distributed GPU servers.
• Design and prototype scalable architectures.
• Execute experiments, analyze results, and refine methodologies.
• Improve model efficiency and computational performance.
• Advance training systems for scalability and efficiency.

Qualifications include a degree in Computer Science or related fields, preferably a PhD in NLP or Machine Learning, with a strong publication record. Practical experience with large-scale distributed training, PyTorch, Hugging Face, and transformer models is required.