Senior Software Engineer, Payment AI Platform - USDS

Responsibilities

Team Intro: We are the TikTok USDS Payment Engineering team. Our mission is to build the one-stop AI-assisted payment platform that allows different TikTok business lines to fully realize the potential of LLM and AI Agents to achieve their goals. We provide a business-centric and user-friendly platform that covers Treasury, Customer Service, Transaction Tools, and Voice of Customer/Business applications. Our vision is maximizing end-to-end AI application development efficiency and ultimately enabling the payment business to achieve self-evolving AI native goal. Responsibilities: - Responsible for building an end-to-end payment operation platform, including but not limited to a one-stop operation Workplace covering end-to-end operation processes: a transaction end-to-end configuration center, a customer complaint platform, operation outreach capabilities, page componentization, and back-end open capabilities, etc. - Responsible for designing scenario-based AI solutions to drive the evolution of operational functions towards online, visual, configurable, rule-based, automated, and intelligent directions, thereby enhancing operational experience and product R&D efficiency. - Continuously improve and optimize system architecture, constantly enhance system stability and performance, promote the implementation of new technologies in business, and support the high-speed development of payment businesses. - Have the opportunity to participate in industry research, technology planning, business breakthroughs and other tasks, lead colleagues in the direction to complete requirement delivery, and jointly achieve business goals. - Partner effectively across various teams, organizations, and internal/external stakeholders to drive complex engineering efforts and align technical strategies.

Qualifications

Minimum Qualifications: - Bachelor's degree in Computer Science, Engineering, or a related technical discipline. - 5+ years of hands-on experience building, training, and deploying complex and scalable Software or Machine Learning systems. - Strong foundation in Computer Science, including algorithms, data structures, and software design patterns. Excellent problem-solving abilities. Have solid programming skills and be familiar with at least one backend development language among Java, PHP, C++, Go, and Python. - Good system design capabilities, be proficient in distributed system development skills (including MySQL, Redis, MQ, RPC, etc.), and understand their underlying principles and application scenarios. - Good communication and learning abilities, teamwork skills, problem analysis and solving capabilities, have a strong sense of responsibility and leadership Preferred Qualifications: - Solid programming skills with a strong understanding of Agentic AI and AI platforms like Coze, ChatBot, Rag, A2A protocols, AutoPrompt etc. - Deep understanding of the full LLM training and serving process. - Preference will be given to those with experience in operating platforms and B-side R&D.

Job Information

[For Pay Transparency]Compensation Description (Annually)

The base salary range for this position in the selected city is $177688 - $341734 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 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