Senior AI Applications Engineer - LLM Fine-Tuning (Remote)

Bright Vision Technologies; United States; Remote; USD 105,000 - 175,000; Full time

Job summary

Bright Vision Technologies is seeking an AI Applications Engineer to design, execute, and operationalize fine-tuning workflows for large language models across supervised, RLHF, and DPO approaches. The role requires hands-on experience with modern training stacks, careful dataset construction, and rigorous evaluation practices.

You will collaborate with product, design, and engineering teams to translate ambiguous requirements into robust, scalable solutions.

Qualifications

• Master’s or PhD in Computer Science, ML, or related field; or equivalent experience.
• 6+ years of ML research and engineering experience with significant LLM exposure.
• Proficiency in Python and PyTorch.
• Hands-on experience fine-tuning transformer-based language models at scale.
• Familiarity with distributed training strategies (FSDP, ZeRO, pipeline parallelism).
• Experience with RLHF, DPO, or other preference optimization techniques.
• Strong evaluation design and benchmarks knowledge.
• Experience operating training jobs on GPU clusters.

Responsibilities

• Design and execute fine-tuning experiments for large language models using supervised, DPO, RLHF, and related techniques.
• Lead dataset construction, curation, and quality assurance for instruction tuning and preference data.
• Build scalable training pipelines atop modern distributed training frameworks.
• Tune hyperparameters, optimizer configurations, and training stability strategies for large models.
• Implement parameter-efficient fine-tuning methods (LoRA, QLoRA, adapters).
• Design rigorous evaluation suites including automated benchmarks and human evaluation.
• Operate large-scale training jobs on GPU clusters and diagnose failures.
• Collaborate with product, research, and platform teams to align roadmaps with business needs.

Skills

Python

ML intuition

Written communication

Verbal communication

Shipping impactful LLM work

Production-grade engineering

Education

Master’s or PhD in Computer Science/ML

Tools

PyTorch

FSDP

ZeRO

RLHF

DPO

Job description

Bright Vision Technologies is seeking an AI Applications Engineer to design, execute, and operationalize fine-tuning workflows for large language models across supervised, RLHF, and DPO approaches. The role requires hands-on experience with modern training stacks, careful dataset construction, and rigorous evaluation practices.

You will collaborate with product, design, and engineering teams to translate ambiguous requirements into robust, scalable solutions.