Applied Machine Learning Research Scientist

Cerebras; United States; On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Equal opportunity employer

Inclusive work environment

Continuous learning and growth opportunities

Job summary

Cerebras is seeking an Applied Machine Learning Research Scientist to develop scalable, high-performance machine learning systems. The candidate will work on large language models and reinforcement learning techniques, collaborating with researchers.

This role requires extensive experience in machine learning systems and proficiency in Python. The candidate will handle model performance evaluation and system debugging, contributing towards the creation of reliable and effective AI applications.

Qualifications

• 4+ years of experience working with machine learning systems.
• Ability to read and understand modern ML papers and implement key ideas.

Responsibilities

• Apply post-training techniques to improve model performance.
• Build and maintain evaluation pipelines to measure model performance.
• Debug issues across the ML stack, including data pipelines and training jobs.
• Collaborate with researchers to translate ML ideas into efficient implementations.
• Design and implement ML pipelines for all stages of LLM development.
• Optimize training and inference workflows.

Skills

Python programming

Machine learning fundamentals

Experience with ML frameworks such as PyTorch

Understanding of deep learning architectures

Education

Bachelor's or Master’s degree in Computer Science, Engineering, or related field

Job description

Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services.

This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation.

Cerebras works with the leading model labs, global enterprises, and cutting-edge AI-native startups. OpenAI recently announced a multi-year partnership with Cerebras, to deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference.

About The Role

As an Applied Machine Learning Research Scientist at Cerebras, you will play a key role in turning modern machine learning techniques into scalable, high-performance systems. This role sits at the intersection of modeling and systems focused not on publishing new algorithms, but on understanding how they work and making them run effectively at scale. Your work will directly impact how large language models (LLMs) are trained, optimized, and deployed on one of the most advanced AI platforms in the world.

You will work closely with researchers and senior engineers to implement and improve workflows for LLM pretraining, fine-tuning, and reinforcement learning-based post-training. This includes building training pipelines, debugging complex system behaviors, improving model quality, and iterating on data and evaluation strategies. Your contributions will help translate cutting‑edge ML ideas into reliable, production‑ready systems that solve real‑world problems.

This role is ideal for candidates who enjoy hands‑on engineering, want to build deep intuition for ML systems, and are excited about working on LLMs and reinforcement learning in practice, not just in theory.

Responsibilities

• Apply post‑training techniques (e.g. RLVR, RLHF, GRPO etc.) to improve model performance.
• Build and maintain evaluation pipelines to measure model performance across tasks and domains.
• Debug issues across the ML stack, including data pipelines, training jobs, model outputs and mixed or lower precision computation.
• Collaborate with researchers to translate ML ideas into efficient, scalable implementation.
• Design, implement, and scale ML pipelines across all stages of LLM development (pretraining, fine‑tuning, alignment).
• Work with large datasets, including dataset generation, filtering, and synthetic data approaches.
• Optimize training and inference workflows for performance, efficiency, and reliability.
• Contribute high‑quality, maintainable code to shared ML infrastructure.

Skills & Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 4+ years of experience (including internships, research, or industry experience) working with machine learning systems; we are hiring multiple positions for various levels.
• Strong programming skills in Python.
• Experience with ML frameworks such as PyTorch.
• Solid understanding of machine learning fundamentals.
• Familiarity with deep learning architectures, particularly transformers.
• Ability to read and understand modern ML papers and implement key ideas.

Preferred Skills & Qualifications

• Experience working with large language models (training, fine‑tuning, and evaluation).
• Familiarity with reinforcement learning concepts.
• Experience with distributed training frameworks (e.g., FSDP, Megatron).
• Experience working with large‑scale datasets and data pipelines.
• Experience debugging or optimizing ML systems for performance.
• Contributions to meaningful codebases, projects, or open‑source systems.

Cerebras Systems is committed to creating an equal and diverse environment and is proud to be an equal opportunity employer. We celebrate different backgrounds, perspectives, and skills. We believe inclusive teams build better products and companies. We try every day to build a work environment that empowers people to do their best work through continuous learning, growth and support of those around them.

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