LLM Engineer

CodeBranch
📍 Medellín, Antioquia, Colombia 💼 Full-time 🕒 Posted February 28, 2026

Job Description

We are seeking a experienced LLM Engineer/Developer to join our remote team at CodeBranch. We require someone with a solid understanding of LLM architectures, advanced Prompt Engineering skills, and experience in the AI/ML development stack, prepared to transform concepts into tangible applications that drive software.

Core Technical Skills:

LLM Fundamentals & Architecture

  • Deep understanding of transformer architectures, attention mechanisms, and how modern LLMs process information.
  • Knowledge of different model families (GPT, Claude, Llama, Mistral, etc.) and their architectural differences.
  • Understanding of tokenization, embeddings, context windows, and temperature/sampling parameters.
  • Familiarity with fine-tuning techniques: full fine-tuning, LoRA, QLoRA, PEFT methods
  • Knowledge of quantization (4-bit, 8-bit) and model compression techniques

Prompt Engineering & Context Management

  • Expert-level p...

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Job Details

  • Location Medellín, Antioquia
  • Job Type Full-time
  • Category Other-General
  • Posted Date February 28, 2026
  • Application Deadline April 09, 2026