Founding ML Engineer (Spectrum)
JetBrains · Amsterdam, Netherlands; Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; London, United Kingdom; Madrid, Spain; Munich, Germany; Paphos, Cyprus; Prague, Czech Republic; Remote, Germany; Warsaw, Poland; Yerevan, Armenia
Posted about 2 months ago
or apply directly on JetBrains's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 65 days JetBrains's roles stay open a median of 66 days
- Reposted
- No
- Salary listed
- No 0% of JetBrains's roles list one
- Ghost-job risk at JetBrains
- high 69 stale, 2 reposted of 73 open
- Hiring momentum
- 114 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-08
Measured from postings appearing on and disappearing from JetBrains's own greenhouse board since 2026-08-03. Full hiring picture for JetBrains.
About this role
As a Founding ML Engineer at Spectrum, you will design and build machine learning and large language model solutions for data ingestion, knowledge extraction, and reasoning. Your role will involve creating datasets and pipelines, establishing MLOps practices, and collaborating with engineering and research teams. You will also be responsible for defining hiring criteria and shaping the ML team culture as the team grows.
- benefits
- 2/5
- freshness
- 1/5
- career value
- 5/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of JetBrains as an employer.
What you need
- Proven track record as an ML/AI Lead
- At least five years of experience in ML/AI systems, with at least two 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 an equivalent
- Familiarity with vector databases and retrieval-augmented generation (RAG) patterns
Nice to have
- Experience with ontologies, knowledge graphs, or graph-based reasoning
- Experience in early-stage startups
- Ability to think strategically about product-led AI
- Background in code analysis, developer tools, or software engineering research
- Experience with multi-agent systems or complex agentic workflows
What you get
- Competitive salary
- JetBrains benefits
- Generous runway and corporate resources with startup autonomy
Worth weighing
- No specific salary listed
- Role involves significant responsibility in shaping the ML team and product direction
- Startup environment may require adaptability and comfort with ambiguity
Summarised from JetBrains's posting. Read the full original.
Listed by JetBrains on their greenhouse job board, last confirmed open on 2026-10-08. PitchMeAI is not the employer.
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