Senior Architect, Model Performance and Post-Training

NVIDIA; Colorado; On-site; USD 224,000 - 431,000; Full time

Benefits offered by this job

Equity

Comprehensive benefits package

Competitive salary

Job summary

NVIDIA seeks a Senior Engineer to drive performance modeling, evaluation, and post-training of large language models specialized in code generation, software engineering, and agentic coding tasks. You’ll work at the intersection of model training, inference optimization, and empirical analysis to improve coding model capabilities, efficiency, and developer productivity.

You will design experiments to understand model behavior, identify bottlenecks, and develop post-training strategies

Qualifications

• Bachelor’s degree (or equivalent) in Computer Science or AI with 12+ years of meaningful work experience.
• Excellent programming skills in Python and strong understanding of large language models, transformer architectures, and the training and evaluation of generative models.
• Foundational understanding of reinforcement learning algorithms and implementation, including MDPs, policies, and reward design.
• Deep understanding of software engineering fundamentals, code generation, automated testing, and program correctness.
• Proven track record to lead model development life cycles, including dataset versioning, experiment tracking, and evaluation pipelines.

Responsibilities

• Develop meticulous frameworks to measure and analyze coding model performance across code generation, debugging, code completion, repository-level reasoning, and multi-step software engineering tasks.
• Develop, and optimise post-training pipelines for coding models, including supervised fine-tuning (SFT), preference optimisation, reinforcement learning (RL), and outcome-based or process-based reward modelling.
• Analyse benchmark results, training dynamics, failure modes, and model behaviours to find opportunities for improvement.
• Improve model performance on sophisticated coding tasks through targeted training interventions, reward design, curriculum development, and iterative error analysis.
• Build scalable, reproducible infrastructure for training experiments, evaluation pipelines, and model performance analysis.

Skills

Python programming

LLM training & evaluation

Reinforcement learning basics

Software engineering fundamentals

Experiment tracking

Education

Bachelors in CS or AI

Tools

SFT pipelines

RLHF

Experiment tracking

Job description

NVIDIA is widely regarded as one of the technology industry’s most desirable employers. We lead the way in High-Performance Computing, Artificial Intelligence, and Visualization. Our core invention, the GPU, serves as the visual cortex of modern computers and powers our entire product suite. GPU deep learning ignited the modern AI era—the next great computing age with the GPU acting as the brain for everything from robots and autonomous cars to conversational AI. Today, we are known globally as "the AI computing company." We are looking to grow our teams by bringing in the smartest people in the world. Join us at the forefront of technological advancement.

We are looking for a Senior Engineer to drive the performance modeling, evaluation, and post‑training of large language models specialized in code generation, software engineering, and agentic coding tasks. In this role, you’ll work at the intersection of model training, inference optimization, and empirical analysis to improve coding model capabilities, efficiency, reliability, and real‑world developer productivity. You’ll design experiments to understand model behaviour, identify performance bottlenecks, and develop post‑training strategies that translate into measurable improvements on coding benchmarks and real‑world software engineering tasks. You’ll collaborate closely with research scientists, infrastructure engineers, and product teams to turn model insights into production‑ready capabilities.

What You’ll Be Doing

• Develop meticulous frameworks to measure and analyze coding model performance across code generation, debugging, code completion, repository‑level reasoning, and multi‑step software engineering tasks.
• Develop, and optimise post‑training pipelines for coding models, including supervised fine‑tuning (SFT), preference optimisation, reinforcement learning (RL), and outcome‑based or process‑based reward modelling.
• Analyse benchmark results, training dynamics, failure modes, and model behaviours to find opportunities for improvement.
• Improve model performance on sophisticated coding tasks through targeted training interventions, reward design, curriculum development, and iterative error analysis.
• Build scalable, reproducible infrastructure for training experiments, evaluation pipelines, and model performance analysis.

What We Need To See

• Bachelor’s degree (or equivalent experience) in Computer Science or AI with 12+ years of meaningful work experience.
• Excellent programming skills in Python and strong understanding of large language models, transformer architectures, and the training and evaluation of generative models.
• Foundational understanding of reinforcement learning algorithms and implementation, including MDPs, policies, and reward design.
• Deep understanding of software engineering fundamentals, code generation, automated testing, and program correctness.
• Proven track record to lead model development life cycles, including dataset versioning, experiment tracking, and evaluation pipelines.

Ways To Stand Out From The Crowd

• Experience training or post‑training state‑of‑the‑art coding models or models designed for software engineering agents.
• Experience with execution‑based rewards, verifiable rewards, reward hacking mitigation, and automated code evaluation.
• Familiarity with coding benchmarks and evaluation environments such as SWE‑bench, etc.

Widely considered to be one of the technology world’s most desirable employers, NVIDIA offers highly competitive salaries and a comprehensive benefits package. As you plan your future, see what we can offer to you and your family www.nvidiabenefits.com/

Your base salary will be determined based on your location, experience, and the pay of employees in similar positions. The base salary range is 224,000 USD - 356,500 USD for Level 5, and 272,000 USD - 431,250 USD for Level 6.

You will also be eligible for equity and benefits.

Applications for this job will be accepted at least until October 17, 2026.

This posting is for an existing vacancy.

NVIDIA uses AI tools in its recruiting processes.

NVIDIA is committed to fostering an inclusive work environment and proud to be an equal opportunity employer. As we highly value diversity in our current and future employees, we do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law.

, , JR2027887