Machine Learning Engineer – LLM Fine-Tuning

Metana
ContractColombo, Sri Lanka

About the Role

We’re seeking a Machine Learning Engineer with deep experience fine-tuning large language models (LLMs) to join a fast-moving product team building an intelligent automation system.

What You Bring

  • Strong experience in LLM fine-tuning (instruction tuning, LoRA, QLoRA, PEFT, etc.)
  • Fluency in Python and libraries like Transformers (HuggingFace), PyTorch, LangChain, or LangGraph
  • Experience working with open-source models and task-specific datasets
  • Familiarity with prompt tuning, few-shot learning, and agentic reasoning frameworks
  • Bonus: Familiarity with agent systems like LangGraph, AutoGen, or custom tools for agent control flow
  • Comfort working in early-stage or research-heavy environments where iteration is fast and data is messy

Nice to Have

  • Experience working with multimodal models (text + screen, vision-language)
  • Familiarity with reinforcement learning from human feedback (RLHF) or gamified feedback loops
  • Knowledge of toolformer-like architectures or LLMs that trigger external actions
  • Previous contributions to open-source ML tools or models
  • Interest in building product-grade systems from ML experiments

What You’ll Get

  • A central role in shaping how real AI agents understand and execute tasks
  • Freedom to experiment with new model architectures and training techniques
  • A collaborative, high-velocity team that values both research and shipping a product
  • Competitive contract-based compensation with the potential for long-term equity or a leadership role

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