Software Engineer Intern

Team Introduction: The TIGE (Traffic Infrastructure Global Engineering) team serves as the world's premier edge cloud computing and CDN service, offering enterprise users with Content Delivery Network, Edge AI, Edge Security, Edge Computing services, and Traffic Platform services. Our team is responsible for developing and managing edge cloud, CDN and traffic technologies to support billion users and ensure performance, compliance, security and cost efficiency. In line with our commitment to excellence, we are looking for talented individuals to join us for an internship in 2025. Internships at Bytedance aim to offer students industry exposure and hands-on experience. Turn your ambitions into reality as your inspiration brings infinite opportunities at Bytedance. We are looking for talented individuals to join us for an internship in 2026. Internships at ByteDance aim to offer students industry exposure and hands-on experience. Watch your ambitions become reality as your inspiration brings infinite opportunities at ByteDance. We are looking for talented individuals to join us for an internship in 2026. PhD Internships at ByteDance aim to provide students with the opportunity to actively contribute to our products and research, and to the organization's future plans and emerging technologies. PhD internships at ByteDance provide students with the opportunity to actively contribute to our products and research, and to the organization's future plans and emerging technologies. Our dynamic internship experience blends hands-on learning, enriching community-building and development events, and collaboration with industry experts. Applications will be reviewed on a rolling basis - we encourage you to apply early. Please state your availability clearly in your resume (Start date, End date). Online Assessment Candidates who pass resume screening will be invited to participate in ByteDance 's technical online assessment. Responsibilities： As a Software Engineer Intern, your role encompasses three key areas. 1. In the research and exploration phase, you'll study the FusionCDN system's traffic scheduling mechanisms, IPT cost model, and operational constraints. You'll also conduct a literature review on CDN - related optimization strategies and work with the team to define project objectives, constraints, and key performance indicators. This involves identifying challenges like high costs during peak periods and devising strategies to maximize free bandwidth. 2. The data collection and analysis phase is crucial. You'll gather historical traffic data to identify peak periods and patterns, and build a simplified cost model for IPT charges. By analyzing traffic characteristics and running simulations on different traffic distribution scenarios, you'll gain insights that will inform the subsequent design work. 3. In the traffic scheduling framework design and implementation phase, you'll design and implement an algorithm to redistribute traffic during peak periods, making the most of the free bandwidth without exceeding the limit. You'll then test and validate the solution in a controlled environment, evaluating its cost - savings, service quality, and scalability. This includes comparing IPT costs before and after implementation and assessing metrics like latency and throughput. Minimum Qualifications： - Final year Ph.D or recent Ph.D graduates in Computer Science, engineering or quantitative field - Strong background in networking, CDN systems, and traffic optimization. Preferred Qualifications： - Experience with programming languages like Go, Python, or similar. - Knowledge of algorithm development, cost modeling, and real-time systems is a plus. By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://jobs.bytedance.com/en/legal/privacy