Backend Software Engineer (IM Cloud) - Tik Tok

• Singapore

3+ months ago• Singapore
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About Us

Tik Tok is the leading destination for short-form mobile video and our mission is to inspire creativity and bring joy.
Size: 5001-10000 employees

Industry: Entertainment & Gaming, Social Media, Technology

Responsibilities:

We are the Tik Tok IMCloud team, the core infrastructure group responsible for Tik Tok's entire global Instant Messaging (IM) system. Our mission is to build and operate the foundational backend services that enable billions of users to connect reliably, securely, and efficiently.
We are responsible for the end-to-end infrastructure of the TT IM system, including core messaging path design, global multi-region architecture, large-scale system stability, and continuous performance and cost optimization.

Responsibilities:

1. Design, build, and maintain the high-availability, low-latency, and large-scale infrastructure for Tik Tok's global IM system.
2. Lead the design, optimization, and implementation of the core messaging delivery path to enhance system performance and efficiency.
3. Develop and refine the global multi-region architecture to ensure a seamless, reliable experience for users worldwide.
4. Drive system-wide stability and reliability engineering, including fault tolerance, disaster recovery, load balancing, and capacity planning.
5. Focus on service optimization, including performance tuning, resource management, and cost optimization.
6. Collaborate with product, client, and other cross-functional teams to deliver high-quality, scalable backend solutions.

Qualifications

Minimum Qualifications:

1. BS/MS Degree in Computer Science or a related technical field.
2. Proven experience in building and operating large-scale, high-concurrency backend services for consumer-facing applications.
3. Extensive system design experience with a deep understanding of distributed systems, data structures, and algorithms.
4. Strong familiarity with common storage and middleware components, such as relational databases (e.g., RDS), NoSQL/Key-Value stores, and message queues (MQ).
5. Proficient in at least one of the following languages: Go, Python, Java, or C++.
6. Excellent team communication and collaboration skills.

Preferred Qualification:

1. Minimum 3 years of relevant work experience in a large-scale internet/tech company.
2. Hands-on experience with performance tuning, reliability engineering, or cost optimization for cloud-native services.
3. Experience with building and managing infrastructure for large-scale IM or other real-time communication systems.

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Client-provided location(s): Singapore

Job ID: Tik Tok-7565519523245246725

Employment Type: OTHER

Posted: 2025-10-27T20:12:26
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Perks and Benefits

Health and Wellness

• Health Insurance
• Dental Insurance
• Vision Insurance
• HSA
• Life Insurance
• Fitness Subsidies
• Short-Term Disability
• Long-Term Disability
• On-Site Gym
• Mental Health Benefits
• Virtual Fitness Classes

Parental Benefits

• Fertility Benefits
• Adoption Assistance Program
• Family Support Resources

Work Flexibility

• Flexible Work Hours
• Hybrid Work Opportunities

Office Life and Perks

• Casual Dress
• Snacks
• Pet-friendly Office
• Happy Hours
• Some Meals Provided
• Company Outings
• On-Site Cafeteria
• Holiday Events

Vacation and Time Off

• Paid Vacation
• Paid Holidays
• Personal/Sick Days
• Leave of Absence

Financial and Retirement

• 401(K) With Company Matching
• Performance Bonus
• Company Equity

Professional Development

• Promote From Within
• Access to Online Courses
• Leadership Training Program
• Associate or Rotational Training Program
• Mentor Program

Diversity and Inclusion

• Diversity, Equity, and Inclusion Program
• Employee Resource Groups (ERG)

Company Videos

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