AI Engineer (Freelance) - OpenTrain AI
You built and managed AI-focused infrastructure to transform raw audio and text into usable language intelligence assets. You specialized in high-fidelity transcription and multilingual translation, supporting downstream quality through structured annotations and validation. You used strong technical engineering and data workflow skills to enable reliable AI outputs for real-world LLM usage. • Built systems for transcription, diarisation, and audio labelling workflows • Produced translation, localisation, sentiment analysis, and entity recognition outputs • Developed annotation tooling and data validation processes using LabelStudio and LabelBox • Supported LLM training and fine-tuning by preparing granular annotated datasets