Research Engineer / Scientist - AI for Databases

3 Days ago • All levels • Research & Development • Artificial Intelligence • $145,000 PA - $355,000 PA

Job Summary

Job Description

ByteDance's Infrastructure System Lab seeks a Research Engineer/Scientist to focus on AI for Databases. This role involves designing and implementing intelligent systems to enhance database performance, scalability, and usability. Responsibilities include developing AI/ML algorithms for query planning, indexing, storage, and workload prediction; integrating AI models into production systems; analyzing large datasets; and publishing research findings in top-tier conferences. The ideal candidate will possess a PhD in a relevant field, a strong publication record in AI4DB, and experience with database internals and machine learning frameworks. Collaboration with engineering teams and contribution to open-source projects are key aspects of this position.
Must have:
  • PhD in CS/Data Science (AI/DB focus)
  • Strong publication record (SIGMOD, VLDB, etc.)
  • Database internals expertise
  • ML framework experience (TensorFlow, PyTorch)
  • Develop intelligent DB algorithms
  • Integrate AI models into production
Good to have:
  • Proficiency in Python/C++/Java
  • Cloud database platform experience
  • LLM, reinforcement learning, or automated DB tuning familiarity
Perks:
  • Competitive compensation
  • Strong research support
  • Innovation-driven environment
  • Medical, dental, and vision insurance
  • 401k savings plan
  • Paid parental leave
  • Paid time off

Job Details

Responsibilities
About the Team The Infrastructure System Lab is a hybrid research and engineering team dedicated to building the next generation of AI-native data infrastructure. Operating at the crossroads of databases, large-scale systems, and AI, the team innovates across multiple domains, including advanced VectorDBs and multi-modal databases for large-scale retrieval and reasoning, intelligent infrastructure optimization using machine learning, LLM-based developer tools like NL2SQL and NL2Chart, and high-performance cache systems for distributed storage and LLM inference. The lab is deeply collaborative, with researchers and engineers working side by side to turn groundbreaking ideas into production-ready systems. Their work is deployed at scale, powering products used by millions, and frequently shared through publications and open-source contributions. About the Role We are looking for a passionate and skilled professional to join our AI4DB team, where artificial intelligence meets cutting-edge database technology. In this role, you will design and implement intelligent systems that improve the performance, scalability, and usability of modern databases. Your work will span query optimization, indexing strategies, workload forecasting, and the development of self-managing databases. This role offers the chance to solve complex, high-impact problems at the intersection of AI, systems, and software engineering, while collaborating with a top-tier team. You'll have opportunities to publish, contribute to open-source, attend leading conferences, and benefit from competitive compensation, strong research support, and an innovation-driven environment. Responsibilities - Conduct research and development in applying AI/ML techniques to database management systems. - Develop intelligent algorithms for tasks such as query planning, indexing, storage management, and workload prediction/scheduling. - Collaborate with data infrastructure and engineering teams to integrate AI models into production systems. - Analyze large-scale datasets from database workloads to uncover optimization opportunities. - Publish findings in top-tier conferences and journals (VLDB, SIGMOD, ICDE, NeurIPS, etc.). - Contribute to open-source projects or internal tools supporting AI-enhanced databases.
Qualifications
Minimum Qualifications - PhD in Computer Science, Data Science or a related field with a focus on databases, systems, or machine learning. - Strong publication record in top-tier venues (e.g., SIGMOD, VLDB, ICDE, NeurIPS, etc.) related to the AI4DB area. - Strong background in database internals (e.g., PostgreSQL, MySQL, or any modern cloud-native databases or BigData platform). - Hands-on experience with machine learning frameworks (e.g. XGBoost, LightGBM, TensorFlow, PyTorch, scikit-learn). Preferred Qualifications - Proficiency in Python, C++, or Java. - Experience with cloud database platforms (AWS, GCP, Azure) is a plus. - Strong analytical, problem-solving, and communication skills. - Familiarity with LLM, reinforcement learning, neural architecture search, or automated database tuning.
Job Information
【For Pay Transparency】Compensation Description (Annually)

The base salary range for this position in the selected city is $145000 - $355000 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:

1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;

2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and

3. 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

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