Software Engineer, Ads Core Technology - Commercial Platform (CommercePack)

Responsibilities

Join one of the most innovative and fast-paced teams at TikTok, where your work directly impacts the core of our global monetization business. The Ads Delivery team handles billions of ad requests daily, building the high-performance systems that power one of the most sophisticated advertising platforms in the world. If you're passionate about cutting-edge backend development and thrive in solving large-scale system challenges, this is the team for you. Why Join Us? By joining our team, you will : 1. Shape the Backbone of Global Advertising Work in an industry-leading environment that processes a massive volume of ad requests daily. You'll be optimizing backend services to ensure seamless, scalable, and efficient ad delivery. 2. Drive Technical Innovation in Ad Formats Collaborate on the design and launch of innovative ad products across various formats and domains, helping the platform support increasingly complex and creative advertising experiences. 3. Solve High-Concurrency, High-Performance Challenges Engineer backend systems capable of millisecond-level responses in a high-traffic, real-time environment. You'll architect scalable systems that remain stable under extreme loads. 4. Build at Scale Participate in the design and evolution of globally distributed systems that manage immense data flows and handle advanced business logic across regions and products. 5. Own Creativity and Impact Go beyond engineering by contributing to product ideation and execution. You'll have the opportunity to turn ideas into real features, driving user experience and business value together with a cross-functional team. Responsibilities 1. Design and develop backend systems supporting ad delivery for ByteDance's global products. 2. Implement and optimize high-concurrency, high-availability services for real-time advertising scenarios. 3. Continuously improve existing services and proactively identify system bottlenecks and vulnerabilities. 4. Tackle complex technical challenges with high-quality coding and scalable architecture design. 5. Define and help maintain development best practices and coding standards. 6. Collaborate closely with product managers and cross-functional teams to turn requirements into reliable, high-performing solutions.

Qualifications

Minimum Qualifications 1. Strong programming skills and solid understanding of software design principles. 2. Proficient in at least one backend language (e.g., Go, Java, Python, C++). 3. Familiarity with core infrastructure components such as MySQL, Redis, Message Queues, Nginx, etc. 4. Ability to quickly learn and adapt to new technologies and complex systems. 5. Effective communication skills and ability to collaborate in a global team setting. Preferred Qualifications 1. In-depth experience with Go (Golang) and building large-scale distributed systems. 2. Hands-on experience in designing and maintaining systems handling high traffic and concurrency. 3. Deep understanding of backend system optimization, fault tolerance, and performance tuning. 4. Prior involvement in 0-to-1 system or feature development. 5. Demonstrated curiosity for emerging technologies and a willingness to share knowledge.

Job Information

[For Pay Transparency]Compensation Description (Annually)

The base salary range for this position in the selected city is $136800 - $259200 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 TikTok

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

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.

TikTok Accommodation

TikTok 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