Senior LLM Engineer - Production ML Systems (Remote)

Kiefer; Kentucky; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote work option

Relocation support

NVIDIA ecosystem access

Job summary

KIEFER is seeking a Senior Machine Learning Engineer to join Kiefer Tech and advance Sophea AI, a Greek-focused large language model. This role is hands-on, emphasizing LLM development, pre-training, training from scratch, fine-tuning, evaluation, and production-grade ML systems.

You will build production pipelines for inference and deployment, optimize GPUs, and work with datasets and benchmarks to improve model quality in a remote-friendly environment with relocation support to Athens.

Qualifications

• Hands-on experience with LLMs including pre-training and fine-tuning.
• Strong production ML experience and software engineering practices.
• Experience with model serving and deployment in production.
• Experience with GPU workloads and optimization.

Responsibilities

• Work on Sophea AI across pre-training, training from scratch, fine-tuning, evaluation.
• Build production-grade ML pipelines for inference, deployment, monitoring, and model lifecycle management.
• Optimize model performance in production focusing on latency, throughput and cost.
• Work with datasets, experiments, benchmarks to improve language model quality and domain-specific performance.

Skills

LLM development

Python

PyTorch

Production ML practices

Model serving

Inference optimization

GPU workloads

Tools

vLLM

SGLang

NVIDIA Triton

TensorRT

TGI

Job description

KIEFER is seeking a Senior Machine Learning Engineer to join Kiefer Tech and advance Sophea AI, a Greek-focused large language model. This role is hands-on, emphasizing LLM development, pre-training, training from scratch, fine-tuning, evaluation, and production-grade ML systems.

You will build production pipelines for inference and deployment, optimize GPUs, and work with datasets and benchmarks to improve model quality in a remote-friendly environment with relocation support to Athens.