Senior AI Engineer: Payments, LLM & Agentic Systems

Fulcrum Digital Inc

Dublin

Hybrid

EUR 100,000 - 150,000

Full time

8 hours ago
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Job summary

Fulcrum Digital is seeking a Senior AI Engineer to join its Dublin-based engineering team, driving AI-powered solutions for payments platforms. You will own design and implementation of LLM-driven features, RAG pipelines, and agentic workflows, collaborating with cross-functional teams to deliver scalable, secure AI software in a hybrid work environment.

The role emphasizes building production-grade AI systems, guiding architectural decisions, and mentoring engineers while tackling complex

Qualifications

  • Hands-on experience building AI-powered products using LLMs, RAG/retrieval systems, orchestration frameworks (e.g., LangChain, LlamaIndex), and tool-calling/function-calling patterns
  • Strong grasp of agentic workflow concepts, including planning/reasoning loops, memory management, grounding, evaluation frameworks, safety mechanisms, and human-in-the-loop design
  • 6+ years of software engineering experience building scalable, distributed systems and cloud-native applications in an agile environment

Responsibilities

  • Lead team-level design for AI-powered services, including LLM and agent architecture, RAG pipelines, tool-calling integrations, data flows, and nonfunctional requirements such as scalability, reliability, performance, security, and operability
  • Design, build, and productionise AI-powered features, including LLM integrations, RAG/retrieval systems, and agentic workflows using LangChain and LlamaIndex
  • Implement agentic workflow patterns, including planning/reasoning loops, memory management, grounding, evaluation frameworks, safety mechanisms, and human-in-the-loop design
  • Develop and optimise data-intensive applications and analytics capabilities using Databricks, Spark/PySpark, and related technologies to process and deliver data at scale
  • Serve as a hands-on technical contributor, designing, coding, testing, debugging, and delivering production-quality software across the full engineering lifecycle

Skills

LLM orchestration
RAG pipelines
Agentic workflows
Team-level design
Problem solving

Education

Bachelor's degree in Computer Science, Software Engineering, or related field
Or equivalent practical experience

Tools

LangChain
LlamaIndex
Databricks
Spark/PySpark
Docker
Kubernetes

Job description

Fulcrum Digital is seeking a Senior AI Engineer to join its Dublin-based engineering team, driving AI-powered solutions for payments platforms. You will own design and implementation of LLM-driven features, RAG pipelines, and agentic workflows, collaborating with cross-functional teams to deliver scalable, secure AI software in a hybrid work environment.

The role emphasizes building production-grade AI systems, guiding architectural decisions, and mentoring engineers while tackling complex

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