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# Software Engineer - Large Language Models

- **Company:** Fastino Labs
- **Location:** Manchester, UK
- **Contract:** Permanent contract
- **Skills:** Training Data, Artificial Intelligence, Computer Vision, Machine Learning, Language Modeling, Tensorflow, Reinforcement Learning, Pytorch, Large Language Models, Deep Learning, Information Technology, Data Pipelines
- **Published:** May 16, 2026
- **Apply:** https://find.jobs/jobs-near-me/software-engineer-large-language-models-manchester/2771628239-2/

## About the Role

* Required - Great velocity for building and shipping agents / AI products.
 * Optional - Advanced degree (Master's or PhD) in Computer Science, Artificial Intelligence, Machine Learning, or related technical discipline with concentrated study in deep learning and computer vision methodologies
 * Optional - Demonstrated ability to do independent research in Academic or Industry settings
 * Optional - Substantial industry experience in large-scale deep learning model training, with demonstrated expertise in at least one of Large Language Models, Vision-Language Models, Diffusion Models, or comparable generative AI architectures
 * Optional - Comprehensive technical proficiency and practical experience with leading deep learning frameworks, including advanced competency in one of PyTorch, JAX, TensorFlow, or equivalent platforms for model development and optimization

## Description

* Experiment with novel language model architectures, helping drive and execute Fastino's research roadmap
 * Optimize Fastino's multimodal models to improve response quality, instruction adherence, and overall performance metrics
 * Architect data processing pipelines, implementing filtering, balancing, and captioning systems to ensure training data quality across diverse content categories
 * Implement reinforcement learning techniques including Direct Preference Optimization and Generalized Reward Preference Optimization to align model outputs with human preferences and quality standards
 * Build robust and real-world motivated evaluations
 * Partner with Fastino engineering team to ship model updates directly to customers
 * Establish best practices for code health and documentation on the team, to facilitate collaboration and reliable development


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