AI Engineer (Europe)

Stack

Responsibilities

• ▹Own the architecture and delivery of production-grade LLM systems and classical ML solutions
• ▹Design, evaluate and optimize RAG pipelines (retrieval strategy, chunking, indexing, monitoring)
• ▹Build scalable, production-grade LLM services and agentic workflows
• ▹Define architecture trade-offs (LLM vs traditional ML, fine-tuning vs RAG, hosted vs self-managed models)
• ▹Architect and optimize distributed GenAI/ML workloads on Databricks (Spark, MLflow)
• ▹Implement evaluation frameworks for quality, hallucination and performance
• ▹Productionize systems with CI/CD, monitoring, rollback and versioning
• ▹Independently design AI solutions for client problems
• ▹Lead technical decisions in client engagements, contribute to pre-sales architecture discussions
• ▹Mentor team members and define GenAI/ML best practices

Requirements

• ▹5+ years of experience in Data Science or related field
• ▹Proven experience delivering LLM-based systems to production (not only PoCs), plus classical ML experience
• ▹Strong hands-on experience with RAG, agents and open-source LLMs
• ▹Deep understanding of system-level trade-offs (latency, cost, scaling, reliability)
• ▹Strong Python and SQL skills
• ▹Deep hands-on experience with Databricks and distributed computing (Spark)
• ▹Experience deploying scalable ML/LLM systems on AWS, Azure or GCP
• ▹Ability to independently design end-to-end AI solutions
• ▹Client-facing experience, openness to pre-sales processes
• ▹Clear, confident communication in English

Soft skills

About the company

Hiflylabs is a 250+ person Budapest-based team working across data engineering, data science, AI and application development on international projects.