Senior C++ Engineer — Real-Time Recommendation Systems

TikTok Inc.; San Jose (CA); On-site; USD 218,000 - 388,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) with company match

Parental leave

Disability coverage

Life insurance

Wellbeing benefits

Paid holidays

Sick days

Personal time off

Job summary

TikTok Inc. is seeking a senior software engineer to design, develop, and optimize large-scale recommendation engine systems that power content discovery for millions of users.

You will build high-performance, low-latency infrastructure in C++ and modern frameworks to deliver real-time recommendations. The role emphasizes distributed data processing, model inference, and ongoing performance profiling to maximize efficiency and throughput in a fast-paced environment.

Qualifications

• Bachelor's degree or above in Computer Science or related field with experience building scalable systems.
• Experience with C++ in large-scale system development.
• Strong understanding of concurrent programming, multi-threading, and distributed systems.
• Experience with high-performance computing and large-scale data processing frameworks.
• Familiarity with system architecture, caching strategies, and performance optimization.

Responsibilities

• Design, develop, and optimize large-scale recommendation engine systems to enhance content discovery.
• Build and maintain high-performance, low-latency, and scalable infrastructure using C++ and modern system development frameworks.
• Implement multi-threaded and concurrent computing techniques to support real-time recommendations.
• Develop and optimize distributed systems for large-scale data processing and model inference.
• Continuously improve performance and efficiency through profiling, benchmarking, and optimization.

Skills

Large-scale systems design

C++ development

Concurrent programming

Distributed systems

Performance optimization

Real-time inference

High-throughput architectures

GPU acceleration (ML)

Education

Bachelor's degree in Computer Science

Job description

TikTok Inc. is seeking a senior software engineer to design, develop, and optimize large-scale recommendation engine systems that power content discovery for millions of users.

You will build high-performance, low-latency infrastructure in C++ and modern frameworks to deliver real-time recommendations. The role emphasizes distributed data processing, model inference, and ongoing performance profiling to maximize efficiency and throughput in a fast-paced environment.