Senior Machine Learning Engineer
New
H
HubSpotAI CRM
Remote - USAFull-TimeSenior
Salary165,500 - 248,300 USD per year
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Job Details
- Experience
- 5+ years of experience in a dedicated ML Engineer role
- Required Skills
- PythonMachine LearningPyTorchPrompt EngineeringLLM
Requirements
- 5+ years of experience in a dedicated ML Engineer role
- Strong Python skills
- Experience with PyTorch, VLLM, DSPy or similar LLM optimization frameworks
- Hands-on experience working with large language models in production
- Experience with prompt engineering, fine-tuning, evaluation, and inference optimization
- Ability to move from ambiguous problem to experimental design to shipped improvement
- Comfort working with limited supervision in an early-stage product environment
Responsibilities
- Design and run experiments to improve agent quality: better tool use, better reasoning, better outputs, using frameworks like DSPy and VLLM
- Build and maintain evaluation infrastructure to measure what's working and catch regressions before customers do
- Optimize LLM inference: latency, cost, model routing, and quality tradeoffs
- Partner with product teams on model selection and performance benchmarking
- Work closely with product engineers and PMs to translate customer quality problems into ML hypotheses and solutions
- Own models end-to-end: from research and experimentation to production deployment
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