[Remote] Software Engineer Intern (CDN Platform)- 2026 Start (PhD)

Note: The job is a remote job and is open to candidates in USA. ByteDance is a leading technology company known for its innovative products such as TikTok and CapCut. They are seeking a Software Engineer Intern to contribute to their CDN Platform, focusing on traffic scheduling, data analysis, and algorithm design to optimize performance and cost efficiency. Responsibilities 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 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 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 Skills 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 Experience with programming languages like Go, Python, or similar Knowledge of algorithm development, cost modeling, and real-time systems is a plus Benefits Interns have day one access to health insurance Life insurance Wellbeing benefits and more Interns also receive 10 paid holidays per year Paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year) Interns who are not working 100% remote may also be eligible for housing allowance Company Overview ByteDance is a technology company that develops content creation platforms and services. It was founded in 2012, and is headquartered in Beijing, Beijing, CHN, with a workforce of 10001+ employees. Its website is Company H1B Sponsorship ByteDance has a track record of offering H1B sponsorships, with 1350 in 2025, 1123 in 2024, 775 in 2023, 487 in 2022, 417 in 2021, 245 in 2020. Please note that this does not guarantee sponsorship for this specific role.