crystol ai
Posted 53 days agoVerified live 1d ago
AI/ML Engineer
Brief overview
Remote
3+ yrsMinimum
Large Language Models (LLMs)Prompt EngineeringRetrieval-Augmented Generation (RAG)AI Agent OrchestrationPythonTypeScriptModel EvaluationModel Fine-TuningConversational AIMultimodal Models
Job description
Summary
crystol ai is an AI company developing an AI reasoning layer for support automation. The AI/ML Engineer will design agent workflows, evaluate and improve large language model performance, build model-quality evaluation systems, and research new reasoning patterns.
Responsibilities
- Design and iterate on our multi-step AI agent workflows
- Evaluate LLM performance on real support conversations and tune prompts/pipelines
- Build evaluation harnesses and regression suites to track model quality over time
- Research and prototype new agent reasoning patterns
Skills
- • 3+ years hands-on experience with large language models in production
- • Deep understanding of prompt engineering, RAG, and tool-use patterns
- • Strong Python and TypeScript skills
- • Experience evaluating and fine-tuning model outputs
- • Familiarity with Convex Agent or similar orchestration frameworks
- • Prior work on customer support or conversational AI
- • Experience with multi-modal models
Qualifications
Must Haves
- • 3+ years hands-on experience with large language models in production
- • Deep understanding of prompt engineering, RAG, and tool-use patterns
- • Strong Python and TypeScript skills
- • Experience evaluating and fine-tuning model outputs
Nice to Haves
- • Familiarity with Convex Agent or similar orchestration frameworks
- • Prior work on customer support or conversational AI
- • Experience with multi-modal models
Benefits
- Remote work arrangement for roles in the US/EU
