Senior AI Engineers

Senior AI Engineers Dublin | Multiple opportunities 2 days on site in Dublin Must have no work restrictions to work full time in Ireland Needl is partnering with a business growing its Dublin-based AI engineering team. We’re hiring Senior Engineers to build production AI products, with opportunities spanning Agent Systems & Platforms. You’ll join a small, experienced team, working closely with engineering leadership, architecture and product. These are hands-on roles with ownership of technical decisions and delivery from early design through to production. A must is having experience building LLM applications, with at least one product or significant feature shipped to production. Experience taking a product from concept or proof of concept through to launch would be a strong advantage. What you’ll work on Depending on your strengths, your focus will include: - Building multi-step AI agents using tool calling, orchestration and context management. - Developing RAG architectures that connect models with relevant, traceable source information. - Producing reliable, structured outputs through schema validation, evaluation and failure handling. - Building the backend services and runtime that support AI workflows. - Taking early-stage systems into production through configuration management, versioning, tenant isolation, testing and observability. What we’re looking for - Experience building LLM applications, with at least one working LLM product shipped to production. - Strong software engineering experience, typically 5+ years. - Solid production development experience in Python and/or TypeScript. - Hands-on experience shipping LLM-based applications. - An understanding of agentic architectures, RAG and the engineering needed to make AI systems reliable. - Experience owning technical problems and taking solutions through to production. - Daily use of AI-assisted development tools. We want to hear what you built, why you chose the approach and how you measured its performance.