JetBrains

JetBrains provides cutting-edge development tools like IntelliJ IDEA and Kotlin, automating tasks to boost productivity and foster innovation.

Internet Software & Services

Information Technology

1K-5K (1900)

Founded 2000

24 open positions

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Founding ML Engineer (Spectrum)

3 months, 4 weeks ago

Serbia, Spain, Czech Republic, Netherlands, Poland, Cyprus, Armenia, Germany

Full-time

Lead

AI Engineer

Software Development

Generative AI Kotlin LLM Machine Learning MLOps Python

Apply Now

JetBrains

JetBrains provides cutting-edge development tools like IntelliJ IDEA and Kotlin, automating tasks to boost productivity and foster innovation.

Internet Software & Services

1K-5K

Founded 2000

View All Jobs 24

Description

Design and build the ML/LLM system for data ingestion, knowledge extraction, retrieval, and reasoning.
Create datasets, metrics, and pipelines to drive measurable system improvements.
Architect and improve agents for context retrieval, knowledge extraction, and data alignment.
Handle prompt engineering, model selection, and inference optimization for LLM-based workflows.
Establish MLOps practices including orchestration, observability, and experiment tracking.
Collaborate with the engineering team on system design.
Work with JetBrains Research on the team’s research agenda.
Define hiring criteria, help grow the ML team, and shape team culture.

Requirements

Proven track record as an ML/AI Lead.
At least 5 years of experience in ML/AI systems, including 2+ years focused on LLMs and generative AI.
Deep understanding of the LLM ecosystem, including model architectures and fine-tuning approaches.
Hands-on experience with prompt engineering and LLM pipeline design, including evaluation.
Experience with agentic frameworks such as LangChain, LlamaIndex, LangSmith, smolagents, or equivalent.
Experience with vector databases and retrieval-augmented generation (RAG) patterns.
Experience deploying and scaling LLM-powered applications using APIs such as OpenAI or Anthropic, or open-source models.
Strong Python skills; Kotlin knowledge is a plus.
Excellent communication skills with the ability to explain complex technical concepts to diverse audiences.
Proficiency in English, both written and verbal.
Experience with ontologies, knowledge graphs, or graph-based reasoning is preferred.
Experience in early-stage startups and comfort with the zero-to-one phase is preferred.
Ability to think strategically about product-led AI beyond training models in isolation is preferred.
Background in code analysis, developer tools, or software engineering research is preferred.
Experience with multi-agent systems or complex agentic workflows is preferred.
Active contributions to relevant open-source projects or publications are preferred.

Benefits

Competitive salary and JetBrains benefits.
Generous runway and corporate resources with startup autonomy.
Open and inclusive workplace.
Equal opportunity employer commitment.

Interested in this position?

Apply directly on the company website

Apply Now

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