Large Language Model Training System Engineer Graduate (Applied Machine Learning) - 2027 Start

ByteDance; San Jose (CA); On-site; USD 128,000 - 256,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) with company match

Paid parental leave

Short-term and long-term disability

Life insurance

Wellbeing benefits

10 paid holidays per year

10 paid sick days per year

17 days Paid Personal Time

Job summary

ByteDance's Volcano Ark team is seeking talented individuals to join the Data AML machine learning platform group. The role focuses on developing the Volcano Ark training system for post-training tasks such as SFT and RL, with emphasis on elastic, multi-tenant solutions across data centers and hardware.

Strong programming skills and training framework experience are required. Successful candidates will contribute to reinforcement learning interfaces and scalable training performance.

Qualifications

• Bachelor's or Master's in Computer Science or related field.
• Proficient in Python, Rust, or C++ with clean code and good abstraction.
• Experience in training framework design or training system optimization.
• Interest in tracking technical problems and optimization.

Responsibilities

• Develop Volcano Ark training system to enable post-training (SFT/RL) in a serverless setup.
• Design elastic training solutions for multi-tenant, multi-data-center environments to boost throughput and stability.
• Create reinforcement learning systems and user-friendly interfaces for training.

Skills

Python

Rust

C++

Framework design

Abstraction

Problem solving

Education

Bachelor's or Master's in Computer Science

Job description

Responsibilities

Volcano Ark is an all-in-one large model service platform launched by Volcano Engine. It is a leading platform in China's large model market by product capability and market share. The platform provides end-to-end services including model inference, evaluation, fine-tuning, AI application development, and a plugin ecosystem. Volcano Ark hosts Doubao and leading industry large models, and supports enterprise AI adoption through stable, secure, and trusted solutions as well as professional algorithm and technical services.

Team Introduction

Data AML is ByteDance's machine learning platform team. It provides training and inference systems for recommendation, advertising, computer vision, speech, and NLP scenarios across products such as Douyin, Toutiao, and Xigua Video. The team also supports internal business teams with large-scale machine learning compute, explores general and innovative algorithms for business problems, and offers core machine learning and recommendation system capabilities to external enterprise customers through Volcano Engine.

We are looking for talented individuals to join our team. As a graduate, you will get opportunities to pursue bold ideas, tackle complex challenges, and unlock limitless growth.

Successful candidates must be able to commit to an onboarding date by the end of the year. Please state your availability and graduation date clearly in your resume.

Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to our Company and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

Responsibilities

• Participate in the development of the Volcano Ark training system, enabling internal and external users to perform large model post-training, including SFT and RL, on the Volcano Ark platform in a serverless manner.
• Design elastic training solutions for complex multi-tenant training scenarios, supporting mixed multi-tenant training across multiple data centers and heterogeneous hardware, while improving training throughput and stability.
• Design reinforcement learning systems to improve training efficiency and provide user-friendly reinforcement learning training interfaces.

Qualifications

Minimum Qualifications

• Individuals who are completing or have recently completed a Bachelor\'s or Master\'s degree in Computer Science or a related discipline.
• Proficient in one or more programming languages such as Python, Rust, or C++; writes clean code and has strong framework design and abstraction skills.
• Experience in training framework design or training system optimization; participation in large model training engineering or complex distributed system development is preferred.
• Strong interest in tracking and solving technical problems, studying low-level principles and performance bottlenecks, and applying scientific modeling methods.

Preferred Qualifications

• Solid experience in computer architecture optimization, with familiarity with heterogeneous hardware and high-performance networking.
• Strong scientific optimization skills, including the ability to independently analyze training efficiency and identify optimization directions.
• Familiarity with mainstream reinforcement learning frameworks and technical insight into training frameworks.

Job Information

【For Pay Transparency】Compensation Description (Annually)

The base salary range for this position in the selected city is $128000 - $256000 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

For Los Angeles County (unincorporated) Candidates

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:

• Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
• Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and
• Exercising sound judgment.

About Us

Founded in 2012, ByteDance\'s mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Lemon8, CapCut and Pico as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content.

Why Join ByteDance

Inspiring creativity is at the core of ByteDance\'s mission. Our innovative products are built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and enrich life - a mission we work towards every day.

As ByteDancers, we strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our Company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

Reasonable Accommodation

ByteDance is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request