1,123 jobs for "Senior IT Systems Engineer"

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TikTok

Senior Backend Software Engineer, Global E-commerce Core Shopping

San Jose$218,400 – $387,600Posted Apr 4, 2026

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Responsibilities

Global E-commerce is a content e-commerce business with international short video product as the carrier. It is committed to becoming the first choice for users to discover and purchase good products at affordable prices. The global e-commerce business team hopes to provide users with more tailored, active and efficient consumption experience, enabling merchants to receive stable and reliable platform services in different scenarios such as live e-commerce, short video content e-commerce, so as to make more affordable and high-quality products sell easily and a better life within reach.

The Core Shopping & Experience team ensures a seamless core shopping experience across product details, shopping cart, transactions, and after-sales support. They optimize every stage, from product discovery to post-purchase, strengthening the trust between buyers, sellers, and the e-commerce platform.

Responsibilities:
- Be responsible for e-Commerce solutions for TikTok Shop in the US.
- Be responsible for building an intuitive and reliable shopping experience, including browsing product details, return, and refund, etc.
- Building scalable, maintainable, and extendable design and code, and clear documentation for a fast-growing product team.

Qualifications

Minimum Qualifications:
- Bachelor's or above degree in Computer Science or related fields from accredited and reputable institutions.
- 5+ years of experience developing highly scalable backend services and systems using at least one of Java/Golang/Python/Scala/C++ programming languages.
- Experience in software programming capabilities, exhibits good code design and coding style.
- Experience in understanding data structure, algorithm design, analysis, and highly scalable systems design.
- Experience in product and business understanding, able to align product engineering directions to support current and future products and business.

Preferred Qualifications:
- E-commerce industry experience is preferred.
- Understanding of observability, reliability, and performance optimization for large-scale systems.
- Passion for programming, strong learning ability, intellectual curiosity, and a proactive mindset toward staying current with industry technologies.

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $218400 - $387600 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.

Responsibilities

Qualifications

Qualifications

Minimum Qualifications:
- Bachelor's or above degree in Computer Science or related fields from accredited and reputable institutions.
- 5+ years of experience developing highly scalable backend services and systems using at least one of Java/Golang/Python/Scala/C++ programming languages.
- Experience in software programming capabilities, exhibits good code design and coding style.
- Experience in understanding data structure, algorithm design, analysis, and highly scalable systems design.
- Experience in product and business understanding, able to align product engineering directions to support current and future products and business.

Preferred Qualifications:
- E-commerce industry experience is preferred.
- Understanding of observability, reliability, and performance optimization for large-scale systems.
- Passion for programming, strong learning ability, intellectual curiosity, and a proactive mindset toward staying current with industry technologies.

About TikTok

TikTok is the leading destination for short-form mobile video and our mission is to inspire creativity and bring joy.

Size: 5,001 - 10,000 employees
Industry: Entertainment & Gaming

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