Senior AI Engineer – LLM & Production Systems (Remote)

NineTwoThree AI Studio; España; A distancia; EUR 70.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Vacation days

Well-being budget

Health insurance allowance

Parental leave

Certifications reimbursement

Hardware provided

Strong engineering culture

Descripción de la vacante

NineTwoThree AI Studio seeks a Senior ML Engineer to bridge production software and advanced NLP. You will design, optimize, and deploy LLM-powered features and agentic pipelines, taking ownership from prototype to production across client projects.

Working remotely with a global team, you’ll collaborate with frontend, backend, and DevOps, evaluate AI quality, reduce latency, and ensure data privacy while leveraging AWS and Python+/SQL.

Formación

• Proven track record in ML/NLP with production-grade delivery.
• Deep understanding of modern LLM architectures and context windows.
• Experience deploying AI systems with monitoring and debugging.
• Ability to evaluate retrieval, hallucinations, and performance.
• Strong Python coding skills and data querying/cleansing.
• Hands-on experience deploying ML services in AWS.
• Comfort taking ownership from discovery to production.

Responsabilidades

• Architect and build AI features with robust ML and generative AI solutions.
• Evaluate AI quality, reliability, safety, and business impact.
• Integrate AI capabilities into client apps via serverless or APIs.
• Optimize prompts, instructions, and chunking for production efficiency.
• Process unstructured data to train or fine-tune models for business problems.
• Collaborate with clients and teams; translate requirements into scope.
• Maintain engineering quality with reviews and runbooks.

Conocimientos

3+ years ML & NLP engineering

LLM architectures

Production AI systems

Evaluation methodologies

Python & SQL

Cloud infrastructure

Ownership

Educación

Bachelor's or Master's in CS/Engineering/Data Science

Descripción del empleo

NineTwoThree AI Studio seeks a Senior ML Engineer to bridge production software and advanced NLP. You will design, optimize, and deploy LLM-powered features and agentic pipelines, taking ownership from prototype to production across client projects.

Working remotely with a global team, you’ll collaborate with frontend, backend, and DevOps, evaluate AI quality, reduce latency, and ensure data privacy while leveraging AWS and Python+/SQL.