Artificial Intelligence Engineer

ViVA Tech Talent; Belfast; On-site; GBP 50,000 - 80,000; Full time

Job summary

ViVA Tech Talent is seeking an experienced AI Engineer to join a groundbreaking startup in Belfast. This role requires expertise in large language models to develop advanced generative AI applications, offering a unique opportunity to influence cutting-edge projects within a founding team.

Qualifications

• 3+ years of experience in machine learning or NLP with LLMs.
• Strong hands-on experience fine-tuning transformer models.
• Familiarity with cloud or containerised deployments.

Responsibilities

• Develop and deploy LLM-based solutions tailored to business needs.
• Analyze outputs and optimize model performance.
• Build pipelines for scalable model training and evaluation.

Skills

Machine Learning

Natural Language Processing

Python

Prompt Engineering

Education

Bachelor’s or Master’s degree in Computer Science, Machine Learning, or related field

Tools

Hugging Face Transformers

OpenAI API

LangChain

PyTorch

TensorFlow

Job description

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Direct message the job poster from ViVA Tech Talent

AI Engineer - Brand New Start - Up

ViVA have partnered with an exciting startup who are oushing the boundaries of Data and AI. They are looking for an experienced AI Engineer with expertise in Large Language Models (LLMs) to join our team and work on the development of advanced generative AI applications. You will be responsible for fine-tuning, customising, and integrating state-of-the-art LLMs to drive real-world impact across our clients’ products and platforms. This role is ideal for someone who wants to be part of a founding team.

The Role:

• Develop and deploy LLM-based solutions tailored to specific business needs (e.g., chatbots, summarization, content generation, semantic search)
• Fine-tune and customize pre-trained LLMs for targeted applications
• Conduct prompt engineering, few-shot learning, and to optimise model performance
• Build pipelines for scalable model training, inference, and evaluation
• Integrate LLMs into end-user applications via APIs or custom deployments
• Analyse outputs and optimize performance for accuracy, latency, cost, and safety
• Stay on top of the latest research in LLMs, including open-source developments and benchmarks
• Work closely with product and engineering teams to bring LLM-powered features from concept to production

The Person:

• Bachelor’s or Master’s degree in Computer Science, Machine Learning, or related field
• 3+ years of experience in machine learning or NLP, with significant hands-on experience with LLMs
• Proficiency with LLM frameworks such as Hugging Face Transformers, OpenAI API, LangChain, or similar
• Experience fine-tuning large transformer models or implementing retrieval-augmented generation systems
• Strong Python programming skills and familiarity with ML libraries (e.g., PyTorch, TensorFlow)
• Knowledge of prompt engineering best practices and prompt optimization
• Understanding of LLM evaluation methods, including human-in-the-loop and automated metrics
• Familiarity with deploying LLMs in cloud or containerised environments

The salary for this opportunity is negotiable on experience. Reach out for full information - submit your CV for a confidential call, or contact [e-mail].

**All candidates must have the right to work in the UK - VISA sponsorship is not available**

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Staffing and Recruiting

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