Senior LLM Research Engineer

Encore Technical Solutions Inc. is seeking a Senior LLM Research Engineer to build and optimize advanced language models for complex, real-world applications. The role covers the full model development lifecycle, including dataset creation, post-training, evaluation, inference optimization, and continuous model improvement.

Responsibilities:

• Lead post-training workflows, including SFT, RL-based training, distillation, and model alignment
• Design and implement robust evaluation frameworks, benchmarks, and regression testing suites
• Build high-quality training and evaluation datasets from large, unstructured corpora, including synthetic data generation
• Train and optimize models on distributed GPU infrastructure, troubleshooting performance and scalability challenges
• Improve inference efficiency through quantization, parallelization, decoding optimizations, and serving performance tuning
• Analyze results and translate experiments into data-driven model improvement decisions