Senior AI Infra Engineer, TikTok E-commerce Algorithm Architecture & Engineering
for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). So we should include headings for sections that have content. The posting includes: "About the Team" (maybe treat as About the role? but it's about team). Could use "About the Team" as heading. Then Responsibilities, Qualifications (with Minimum and Preferred), maybe "About USDS" (but that's more company description; could be omitted? It's substantive but not a standard heading; maybe we can include as "About the Company" but not in list. The instruction says prefer a few substantive sections over many thin ones. We could combine About the Team and About USDS into an "About the Team/Company" section. But we must preserve all substantive information; we cannot drop details. We could create a section "About the Team and Company" with paragraphs.
We also have "Why Join Us", "Diversity & Inclusion", "USDS Reasonable Accommodation". Those are boilerplate? They are not standard headings but could be considered "Benefits"? Not exactly. The instruction says remove cookie/navigation/legal/EEO/equal-opportunity/scam-warning boilerplate, duplicated lines, and application instructions. "Why Join Us" is motivational, maybe keep? It's not boilerplate but could be considered fluff. Might be okay to keep as a section "Why Join Us". However instruction says prefer few substantive sections over many thin ones. Could combine "Why Join Us", "Diversity & Inclusion", "USDS Reasonable Accommodation" into a "Company Culture" section. But we need to preserve all substantive info; we can embed them as paragraphs under that heading.
Pay: we have compensation description with salary range. So we need a Pay section with that info.
Benefits: we have benefits description (medical, dental, vision, 401k, etc). So Benefits section.
Schedule: we have "On-site presence ... shifting from hybrid to fully in-person schedule up to 5 days a week." So Schedule section.
We should not repeat job title as heading. No Job ID.
We must not create sections with filler like "commensurate with experience". Not present.
We need to use for each section heading. Use - for any list of duties/requirements/benefits. Use
for prose.
We need to preserve all substantive information: responsibilities bullet points, qualifications bullet points (minimum and preferred), about team paragraph, about USDS paragraph, why join us paragraph, diversity & inclusion paragraph, reasonable accommodation paragraph, compensation description, benefits description, schedule description.
We must remove duplicated lines, boilerplate like EEO etc. The "Diversity & Inclusion" is not boilerplate? It's a statement; could keep. "USDS Reasonable Accommodation" is also a statement; keep.
We need to ensure we don't include navigation etc.
Let's structure:
About the Team and Company
We are the TikTok E-commerce Algorithm Architecture & Engineering team (USDS). Our mission is to supercharge the efficiency and effectiveness of e-commerce algorithm services. We build user-friendly tools, elegant architecture, and robust, high-performance systems that drive GMV growth for TikTok E-commerce. Join us in building the most advanced e-commerce LLM/ML system & infrastructure in the industry.
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.
But schedule info maybe better in Schedule section. We'll keep schedule separate.
Thus About the Team and Company paragraph includes mission etc. Keep USDS description maybe separate? Could keep as part of About the Team.
But we need to preserve all info; we can split.
Let's do:
About the Team
We are the TikTok E-commerce Algorithm Architecture & Engineering team (USDS). Our mission is to supercharge the efficiency and effectiveness of e-commerce algorithm services. We build user-friendly tools, elegant architecture, and robust, high-performance systems that drive GMV growth for TikTok E-commerce. Join us in building the most advanced e-commerce LLM/ML system & infrastructure in the industry.
About USDS
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.
But schedule info is duplicated; we will move schedule to its own section and maybe remove from About USDS to avoid duplication. However we must preserve all substantive info; we can keep schedule mention in About USDS but also have Schedule section; duplication is okay? The instruction says remove duplicated lines. So we should avoid duplicating the same sentence. So we should not repeat schedule info in both places. Let's keep schedule only in Schedule section, and remove from About USDS.
Thus About USDS paragraph will exclude the schedule sentence.
Now Responsibilities:
Responsibilities
- System Architecture & Implementation: Lead the design, implementation, and operation of scalable, reliable, and high-performance ML/LLM infrastructure and systems.
- Cross-Functional Collaboration: Partner effectively across various teams, organizations, and internal/external stakeholders to drive complex engineering efforts and align technical strategies.
- Innovation: Drive technical innovation by identifying and integrating emerging technologies and novel ideas to keep our infrastructure at the cutting edge.
Qualifications: we have Minimum Qualifications and Preferred Qualifications. Could combine under Qualifications heading with subheadings? But we only allowed for section headings; we could use ? Not allowed. Could just list all qualifications as list items, maybe separate Minimum and Preferred via paragraphs. But we need to preserve distinction. Could do:
Qualifications
Minimum Qualifications
- Bachelor's degree in Computer Science, Engineering, or a related technical discipline.
- 3+ 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 Qualifications
- 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).
But we used which is allowed? Not prohibited. It's HTML. Could also use for headings inside. That's fine.
Why Join Us, Diversity & Inclusion, USDS Reasonable Accommodation: Could combine into a "Company Culture" section.
Let's create:
Company Culture
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.
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 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
But note: The instruction says remove application instructions. The accommodation link is not exactly application instruction but it's a contact for accommodation; might be considered part of application process. However it's about reasonable accommodation; could be considered EEO/legal boilerplate? It's about accommodation; maybe keep as it's substantive. The instruction says remove EEO/equal-opportunity/scam-warning boilerplate. Reasonable accommodation is related to EEO; might be considered boilerplate. However it's a specific statement about accommodation; not sure. Safer to keep? The instruction says remove EEO/equal-opportunity/scam-warning boilerplate. Reasonable accommodation is part of EEO. I'd lean to remove it. But we need to preserve ALL substantive information; if we remove it, we lose info. However the instruction says remove boilerplate; accommodation statement is boilerplate. So we should remove it. Let's remove the USDS Reasonable Accommodation paragraph.
Thus Company Culture section includes Why Join Us and Diversity & Inclusion.
Now Pay:
Pay
The base salary range for this position in the selected city is $187,040 - $359,720 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.
Note:
- for any list of duties/requirements/benefits. Use
for prose. We need to preserve all substantive information: responsibilities bullet points, qualifications bullet points (minimum and preferred), about team paragraph, about USDS paragraph, why join us paragraph, diversity & inclusion paragraph, reasonable accommodation paragraph, compensation description, benefits description, schedule description. We must remove duplicated lines, boilerplate like EEO etc. The "Diversity & Inclusion" is not boilerplate? It's a statement; could keep. "USDS Reasonable Accommodation" is also a statement; keep. We need to ensure we don't include navigation etc. Let's structure:
About the Team and Company
We are the TikTok E-commerce Algorithm Architecture & Engineering team (USDS). Our mission is to supercharge the efficiency and effectiveness of e-commerce algorithm services. We build user-friendly tools, elegant architecture, and robust, high-performance systems that drive GMV growth for TikTok E-commerce. Join us in building the most advanced e-commerce LLM/ML system & infrastructure in the industry.
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.
But schedule info maybe better in Schedule section. We'll keep schedule separate. Thus About the Team and Company paragraph includes mission etc. Keep USDS description maybe separate? Could keep as part of About the Team. But we need to preserve all info; we can split. Let's do:About the Team
We are the TikTok E-commerce Algorithm Architecture & Engineering team (USDS). Our mission is to supercharge the efficiency and effectiveness of e-commerce algorithm services. We build user-friendly tools, elegant architecture, and robust, high-performance systems that drive GMV growth for TikTok E-commerce. Join us in building the most advanced e-commerce LLM/ML system & infrastructure in the industry.
About USDS
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.
But schedule info is duplicated; we will move schedule to its own section and maybe remove from About USDS to avoid duplication. However we must preserve all substantive info; we can keep schedule mention in About USDS but also have Schedule section; duplication is okay? The instruction says remove duplicated lines. So we should avoid duplicating the same sentence. So we should not repeat schedule info in both places. Let's keep schedule only in Schedule section, and remove from About USDS. Thus About USDS paragraph will exclude the schedule sentence. Now Responsibilities:Responsibilities
- System Architecture & Implementation: Lead the design, implementation, and operation of scalable, reliable, and high-performance ML/LLM infrastructure and systems.
- Cross-Functional Collaboration: Partner effectively across various teams, organizations, and internal/external stakeholders to drive complex engineering efforts and align technical strategies.
- Innovation: Drive technical innovation by identifying and integrating emerging technologies and novel ideas to keep our infrastructure at the cutting edge.
for section headings; we could use
? Not allowed. Could just list all qualifications as list items, maybe separate Minimum and Preferred via paragraphs. But we need to preserve distinction. Could do:
Qualifications
Minimum Qualifications
- Bachelor's degree in Computer Science, Engineering, or a related technical discipline.
- 3+ 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 Qualifications
- 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).
for headings inside. That's fine. Why Join Us, Diversity & Inclusion, USDS Reasonable Accommodation: Could combine into a "Company Culture" section. Let's create:
Company Culture
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.
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 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
But note: The instruction says remove application instructions. The accommodation link is not exactly application instruction but it's a contact for accommodation; might be considered part of application process. However it's about reasonable accommodation; could be considered EEO/legal boilerplate? It's about accommodation; maybe keep as it's substantive. The instruction says remove EEO/equal-opportunity/scam-warning boilerplate. Reasonable accommodation is related to EEO; might be considered boilerplate. However it's a specific statement about accommodation; not sure. Safer to keep? The instruction says remove EEO/equal-opportunity/scam-warning boilerplate. Reasonable accommodation is part of EEO. I'd lean to remove it. But we need to preserve ALL substantive information; if we remove it, we lose info. However the instruction says remove boilerplate; accommodation statement is boilerplate. So we should remove it. Let's remove the USDS Reasonable Accommodation paragraph. Thus Company Culture section includes Why Join Us and Diversity & Inclusion. Now Pay:Pay
The base salary range for this position in the selected city is $187,040 - $359,720 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.
Note: