AI Engineer (Europe) at Hiflylabs

Hiflylabs, a vibrant team of 250+ data and tech enthusiasts based in Budapest, is looking for an AI Engineer to own the architecture and delivery of production-grade LLM systems and classical ML solutions.

Key Responsibilities

Own the architecture and delivery of production-grade LLM systems and classical ML solutions from concept to deployment

Design, evaluate, and optimize RAG pipelines (retrieval strategy, chunking, indexing, monitoring)

Build scalable, production-grade LLM services and agentic workflows

Optimize distributed ML workloads on Databricks and Spark

Implement robust evaluation frameworks and CI/CD for ML/LLM systems

Collaborate with clients to translate business problems into technical solutions

Requirements

5+ years of experience in data science or a related field

Proven track record of delivering production-grade LLM solutions (not just POCs)

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 with deep Databricks and distributed computing (Spark) experience

Experience deploying scalable ML/LLM systems on AWS, Azure, or GCP

Ability to independently design end-to-end AI solutions in response to client problems

Client-facing experience with confident English communication

Tech Stack: Python, SQL, Databricks, Apache Spark, MLflow, AWS, Azure, GCP, open-source LLMs