What are the responsibilities and job description for the Senior Software Engineer, Full Stack - USDS position at TikTok USDS Joint Venture?
Responsibilities
We are seeking a Senior Software Engineer to be a core member of our AI-native team. In this role, you will leverage AI tools and agent-based solutions to fast-track our work, specifically focusing on the migration of legacy business applications to a modern, open-source suite. You will be a key contributor in a greenfield environment, where you will apply AI to solve complex migration challenges at scale.
Responsibilities
- Accelerate Development with AI: Use AI-assisted development tools to write, test, and debug code more efficiently, focusing on the core logic needed to build and integrate the new open-source applications using Python and JavaScript.
- Lead Technical Development & Strategy: Take ownership of the technical direction, from initial design to implementation, with the goal of a seamless transition to open-source platforms.
- Drive Strategic Migration: Work with cross-functional partners to identify key migration challenges that can be solved with AI, ensuring a smooth and rapid transition for business applications. Develop intelligent agents and workflows that can understand, analyze, and assist in the porting of business logic, data, and user configurations to new open-source systems.
- Collaborate Cross-Functionally: Work closely with internal stakeholders and teams to understand business application requirements, pain points, and to ensure the new open-source solutions meet operational needs.
- Ensure Code Quality and Scalability: Maintain high standards for code quality and system reliability, ensuring that all solutions, while developed with AI assistance, meet our requirements for performance and security.
Qualifications
Minimum Qualifications
- 5 years of experience in software development with a strong focus on backend systems.
- Proven proficiency in full stack web development using languages like Python and JavaScript for building robust, scalable applications.
- Experience with containerization technologies and cloud environments (e.g., Kubernetes, OCI, AWS).
- Demonstrated ability to work collaboratively and drive technical initiatives independently in a dynamic, fast-paced environment.
Preferred Qualifications
- Hands-on experience with generative AI and large language models (LLMs), including their application in coding, automation and data analysis.
- Experience in designing or developing automation agents or similar intelligent systems.
- Demonstrated ability to contribute to architectural design, translate business goals into a technical vision, and make sound, data-driven decisions.
- Experience with user interface designing keeping user experience at the forefront.
- Experience with AI enabled tools like Devin, Replit, cursor, zapier etc. along with A strong understanding of DevOps practices and CI/CD pipelines.
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 $187040 - $359720 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.
We are seeking a Senior Software Engineer to be a core member of our AI-native team. In this role, you will leverage AI tools and agent-based solutions to fast-track our work, specifically focusing on the migration of legacy business applications to a modern, open-source suite. You will be a key contributor in a greenfield environment, where you will apply AI to solve complex migration challenges at scale.
Responsibilities
- Accelerate Development with AI: Use AI-assisted development tools to write, test, and debug code more efficiently, focusing on the core logic needed to build and integrate the new open-source applications using Python and JavaScript.
- Lead Technical Development & Strategy: Take ownership of the technical direction, from initial design to implementation, with the goal of a seamless transition to open-source platforms.
- Drive Strategic Migration: Work with cross-functional partners to identify key migration challenges that can be solved with AI, ensuring a smooth and rapid transition for business applications. Develop intelligent agents and workflows that can understand, analyze, and assist in the porting of business logic, data, and user configurations to new open-source systems.
- Collaborate Cross-Functionally: Work closely with internal stakeholders and teams to understand business application requirements, pain points, and to ensure the new open-source solutions meet operational needs.
- Ensure Code Quality and Scalability: Maintain high standards for code quality and system reliability, ensuring that all solutions, while developed with AI assistance, meet our requirements for performance and security.
Qualifications
Minimum Qualifications
- 5 years of experience in software development with a strong focus on backend systems.
- Proven proficiency in full stack web development using languages like Python and JavaScript for building robust, scalable applications.
- Experience with containerization technologies and cloud environments (e.g., Kubernetes, OCI, AWS).
- Demonstrated ability to work collaboratively and drive technical initiatives independently in a dynamic, fast-paced environment.
Preferred Qualifications
- Hands-on experience with generative AI and large language models (LLMs), including their application in coding, automation and data analysis.
- Experience in designing or developing automation agents or similar intelligent systems.
- Demonstrated ability to contribute to architectural design, translate business goals into a technical vision, and make sound, data-driven decisions.
- Experience with user interface designing keeping user experience at the forefront.
- Experience with AI enabled tools like Devin, Replit, cursor, zapier etc. along with A strong understanding of DevOps practices and CI/CD pipelines.
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 $187040 - $359720 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.
Salary : $187,040 - $359,720