Machine Learning Engineer

ViVA Tech Talent; Belfast; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Bonus

Full Medical for you and your family

Very flexible working environment

Job summary

A leading AI solutions provider in Belfast is looking for a Senior ML / AI Engineer to build impactful systems using Large Language Models. This role involves designing workflows, developing RAG pipelines, and architecting production ML services. Applicants should have robust Python skills and ML experience, particularly with LLMs and cloud technologies. A hybrid work environment is offered, promoting a dynamic and flexible work culture while tackling real-world challenges.

Qualifications

• Experience with prompt engineering, fine-tuning, and agent frameworks.
• Knowledge of observability and evaluation in ML contexts.
• Able to work in a hybrid setting with a Belfast base.
• Experience with LLMOps / MLOps, observability, and evaluation
• Solid background in distributed systems, microservices, and streaming data
• Cloud & infrastructure experience (Docker, Terraform, AWS or similar)
• Experience with large-scale unstructured data; security, intelligence, or OSINT is a plus
• Hybrid working (Belfast-based office + remote)
• Modern engineering stack and strong focus on production quality AI
• High autonomy, real-world problems, and meaningful impact

Responsibilities

• Build and fine-tune LLM-powered systems for reasoning.
• Design agentic workflows using modern frameworks.
• Develop RAG pipelines and vector search at scale.
• Architect and ship production ML services and APIs.
• Own deployment, monitoring, and optimisation.
• Work closely with product and domain experts to deliver real‑world impact

Skills

Strong Python and production ML experience

Hands-on experience with LLMs

Deep knowledge of RAG and vector databases

Experience with LLMOps / MLOps

Solid background in distributed systems

Cloud & infrastructure experience

Experience with large-scale unstructured data

Vector databases

MLOps

Distributed systems

Docker

LangChain

LangGraph

Terraform

AWS

Tools

PyTorch

TensorFlow

Docker

Terraform

AWS

Job description

Senior ML / AI Engineer (LLMs & Agentic AI)

Location: Belfast (Hybrid, 2-days a week in office)

Base pay range: Direct message the job poster from ViVA Tech Talent

The Role: Join a high‑impact AI/ML team building production‑grade systems using Large Language Models, RAG, and agentic AI frameworks. Design intelligent workflows that turn large‑scale, noisy, unstructured data into actionable insights used by analysts and customers in real time.

What You’ll Do

• Build and fine‑tune LLM‑powered systems for reasoning, orchestration, and decision‑making
• Design agentic workflows using modern frameworks (e.g. LangGraph / LangChain)
• Develop RAG pipelines, vector search, and semantic retrieval at scale
• Architect and ship production ML services and APIs
• Own deployment, monitoring, evaluation, and optimisation (accuracy, latency, cost)
• Work closely with product and domain experts to deliver real‑world impact

What You Bring

• Strong Python and production ML experience (PyTorch or TensorFlow)
• Hands‑on experience with LLMs, prompt engineering, fine‑tuning, and agent frameworks
• Deep knowledge of RAG, vector databases, and embeddings
• Experience with LLMOps / MLOps, observability, and evaluation
• Solid background in distributed systems, microservices, and streaming data
• Cloud & infrastructure experience (Docker, Terraform, AWS or similar)
• Experience with large‑scale unstructured data; security, intelligence, or OSINT is a plus
• Hybrid working (Belfast‑based office + remote)
• Modern engineering stack and strong focus on production quality AI
• High autonomy, real‑world problems, and meaningful impact

Working pattern

• Hybrid: 2 day per week in Belfast office, 3 days remote

Package

• Bonus
• Full Medical for you and your family
• Very flexible working environment (2-day a week)

If you want to work on real‑world AI systems with genuine impact, we’d love to hear from you. Apply with your CV to learn more.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology

Industries

Staffing and Recruiting