Hiflylabs, a Budapest-based team of 250+ data and tech enthusiasts, is looking for an AI Engineer in Europe. You will own the architecture and delivery of production-grade LLM systems and classical ML solutions, design and optimize RAG pipelines and agentic workflows, and architect distributed GenAI and ML workloads on Databricks. The role also involves leading technical decisions in client engagements, contributing to pre-sales, and mentoring team members.
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, alongside traditional ML systems where appropriate
- ▹Define architecture trade-offs (LLM vs traditional ML, fine-tuning vs RAG, hosted vs self-managed models) with focus on latency, cost, scalability, and reliability
- ▹Architect and optimize distributed GenAI and ML workloads on Databricks (Spark, MLflow)
- ▹Implement evaluation frameworks to measure quality, hallucination, and performance
- ▹Productionize systems with proper CI/CD, monitoring, rollback, and versioning
- ▹Independently design AI solutions tailored to client problems, translating business needs into scalable architectures
- ▹Lead technical decisions in client engagements and contribute to pre-sales architecture discussions
- ▹Mentor team members and define GenAI and ML best practices
Requirements
- ▹5+ years of experience in Data Science or a related field
- ▹Proven experience delivering LLM-based systems to production (not only PoCs) and experience with classical ML projects
- ▹Strong hands-on experience with RAG, agents, and open-source LLMs
- ▹Deep understanding of system-level trade-offs (latency, cost, scaling, reliability) and experience optimizing production systems
- ▹Strong Python and SQL skills
- ▹Deep hands-on experience with Databricks and distributed computing (Spark), including performance optimization
- ▹Experience deploying scalable ML/LLM systems on AWS, Azure, or GCP
- ▹Ability to independently design end-to-end AI solutions for client problems
- ▹Client-facing experience and openness to participate in pre-sales processes
- ▹Clear, confident communication in English in technical discussions
Soft skills
What we offer
- ▹International projects with clients and partners from all over the world (e.g., New York, the Netherlands, Sweden, Scotland)
- ▹Work with cutting-edge tools and technologies
- ▹Empowerment and trust-based culture
- ▹Healthy work/life balance, no pointless meetings or unnecessary administration
- ▹Personal mentor from day one, throughout your career path
- ▹Learning and development opportunities
- ▹Supportive corporate culture built on camaraderie, mutual support, and respect
About the company
Hiflylabs is a vibrant team of 250+ data and tech enthusiasts based in Budapest, working on data engineering, data science, AI, and application development projects worldwide. For twelve years they have been reshaping industries through Data Warehousing, Business Intelligence, and Data Analytics, with a human-centered culture and a unique mentoring system.