Tech Lead, AI Infra Site Reliability Engineer - USDS

TikTok USDS Joint Venture; Seattle (WA); On-site; USD 198,000 - 416,000; Full time

Job summary

TikTok USDS Joint Venture LLC is seeking a seasoned Site Reliability Engineer to own production reliability for state-of-the-artRecommendation and Search systems. You will help build observable, fault-tolerant services across global data centers.

Role requires 5+ years in SRE, strong Linux/networking skills, and proficiency in Python/Go/Perl/C/C++. This on-site role emphasizes ownership, collaboration, and deep system design for reliability at scale.

Qualifications

• Bachelor's degree in Computer Science or related field with 5+ years of experience.
• Experience in SRE for large-scale, highly reliable deployments.
• Familiar with Linux system operation and networking.
• Proficiency in at least one language (Python, Perl, Go, or C/C++).
• Experience designing, analyzing and troubleshooting distributed systems.
• Familiar with CI/CD processes and environments.
• Strong communication and ownership qualities.

Responsibilities

• Engage in end-to-end lifecycle of Recommendation and Search systems from design through launch, deployment and refinement.
• Deliver tools to improve reliability, scalability, and operational efficiency of services.
• Build availability of large-scale services deployed across global data centers.
• Plan and optimize cloud resource utilization ensuring SLA for large clusters.
• Measure availability, latency and health of services.
• Practice sustainable incident response and postmortems.

Skills

SRE experience

Large-scale systems

Linux

Networking

Programming languages

CI/CD

Communication

Education

Bachelor's degree in CS or related

Tools

CI/CD tooling

Job description

Responsibilities

About the team The USDS JV AI Infra SRE team works with engineering and product teams to build and run large-scale, globally distributed, observable, fault-tolerant systems for TikTok state-of-the-Art Recommendation and Search engines. SREs on this team will deliver on production ownership and be responsible for observability and automation across complex, large-scale service mesh architectures.

Responsibilities:

• Engage in and improve the whole lifecycle of Recommendation and Search systems — from system design consulting through to launch reviews, deployment, operation and refinement
• Deliver tools/software to improve the reliability and scalability of services, automate operations and improve R&D efficiency
• Build availability of large-scale services deployed across global data centers
• Plan, manage and optimize cloud resources utilization, ensuring SLA of large-scale clusters
• Measure and monitor availability, latency and overall service health
• Practice sustainable incident response and postmortems.

Qualifications

Minimum Qualifications

• Bachelor's degree or above majoring in Computer Science or related fields, with 5+ years of related work experience
• Experience in SRE of large-scale systems deployment with high reliability and scalability
• Familiar with system operation skills in Linux and network
• Experience programming in at least one of the following languages: Python, Perl, Go, or C/C++
• Experience in designing, analyzing and troubleshooting large-scale distributed systems
• Familiar with popular CI/CD procedures and environments
• Effective communication skills and a sense of ownership and drive

Preferred Qualifications

• Prior experience in SRE for Recommendation Systems, Search, or Advertising platforms.
• Familiarity with the ML lifecycle and inference engines

About USDS

TikTok USDS Joint Venture LLC is dedicated to the safety and security of millions of Americans who create, discover, and connect with what they love on the apps we operate. The Joint Venture has been established in compliance with the Executive Order signed by President Trump on September 25, 2025. Our foundation is a comprehensive data privacy and cybersecurity program we operate under defined safeguards to protect national security and secure U.S. user data, apps and the algorithm. We safeguard the U.S. content ecosystem, holding decision-making authority for trust and safety policies and moderation. USDS Joint Venture helps ensure Americans can continue to express their creativity, discover new hobbies and interests, and build thriving communities and businesses on a global scale.

On-site presence across teams allows the company to operate with greater speed, alignment, and agility — especially in areas like real-time decision-making, team development, and integrated execution. As such, the company is shifting from a hybrid work model to a fully in-person schedule up to 5 days a week.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is 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 bring joy - a mission we work towards every day.

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. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. 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

TikTok 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 TikTok, our mission is to inspire creativity and bring joy. 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.

USDS Reasonable Accommodation

USDS 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/USDS-RA

Job Information

【For Pay Transparency】Compensation Description (Annually)

The base salary range for this position in the selected city is $198360 - $416100 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.