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TikTok · 1 week ago

ML/LLM Infrastructure Engineer, TikTok E-commerce Algorithm Architecture & Engineering - USDS

Seattle, WA

Full-time

Onsite

Entry Level

$130K/yr - $246K/yr

1+ years exp

TikTok is the leading destination for short-form mobile video, and they are seeking an ML/LLM Infrastructure Engineer to enhance their e-commerce algorithm services. The role involves designing and implementing scalable ML/LLM infrastructure while collaborating with various teams to drive engineering efforts and innovate using emerging technologies.

Content CreatorsContent DiscoveryMedia and EntertainmentSocial MediaVideo

H1B Sponsor Likely

Responsibilities

Lead the design, implementation, and operation of scalable, reliable, and high-performance ML/LLM infrastructure and systems

Partner effectively across various teams, organizations, and internal/external stakeholders to drive complex engineering efforts and align technical strategies

Drive technical innovation by identifying and integrating emerging technologies and novel ideas to keep our infrastructure at the cutting edge

Qualification

Machine Learning systemsLarge Language Model (LLM)LLM serving frameworksComputer Science fundamentalsTechnical project managementTechnical innovationProblem-solving abilitiesCross-functional collaboration

Required

Bachelor's degree in Computer Science, Engineering, or a related technical discipline

1+ years of hands-on experience building, training, and deploying complex and scalable Machine Learning systems

Strong foundation in Computer Science, including algorithms, data structures, and software design patterns

Excellent problem-solving abilities

Solid programming skills with a strong understanding of ML/LLM system internals

Proven experience in managing technical projects and delivering results

Preferred

In-depth experience with Large Language Model (LLM) systems and infrastructure

Proficiency with high-performance LLM serving frameworks (e.g., vLLM, SGLang)

Deep understanding of the full LLM serving stack and end-to-end inference optimization (latency, throughput, memory management)

Benefits

Medical, dental, and vision insurance

401(k) savings plan with company match

Paid parental leave

Short-term and long-term disability coverage

Life insurance

Wellbeing benefits

10 paid holidays per year

10 paid sick days per year

17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure)

Company

TikTok

Glassdoor3.4

TikTok is a short-form video entertainment app and social network platform. It is a sub-organization of ByteDance.

Founded in 2003

Los Angeles, California, USA

10001+ employees

https://www.tiktok.com

H1B Sponsorship

TikTok has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

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Trends of Total Sponsorships

2025 (979)

2024 (601)

2023 (387)

2022 (322)

2021 (133)

2020 (72)