Responsibilities

The Business Risk Integrated Control (BRIC) team is missioned to:

• Protect Tik Tok users, including and beyond content consumers, creators, advertisers
• Secure platform health and community experience authenticity
• Build infrastructures, platforms and technologies, as well as to collaborate with many cross-functional teams and stakeholders

The BRIC team works to minimize the damage of inauthentic behaviors on Tik Tok platforms, covering multiple classical and novel community and business risk areas such as account integrity, engagement authenticity, anti spam, API abuse, growth fraud, live streaming security and financial safety (ads or e-commerce), etc.

In this team you'll have a unique opportunity to have first-hand exposure to the strategy of the company in key security initiatives, especially in building scalable and robust, intelligent and privacy-safe, secure and product-friendly systems and solutions. Our challenges are not some regular day-to-day technical puzzles -- You'll be part of a team that's developing novel solutions to first-seen challenges of a non-stop evolvement of a phenomenal product eco-system. The work needs to be fast, transferrable, while still down to the ground to making quick and solid differences.

Key Responsibilities

• Build machine learning solutions to respond to and mitigate business risks in Tik Tok products/platforms. Such risks include and are not limited to abusive accounts, fake engagements, spammy redirection, scraping, fraud, etc.
• Improve modeling infrastructures, labels, features and algorithms towards robustness, automation and generalization, reduce modeling and operational load on risk adversaries and new product/risk ramping-ups
• Uplevel risk machine learning excellence on privacy/compliance, interpretability, risk perception and analysis

Qualifications

Minimum Qualifications

• Master or above degree in computer science, statistics, or other relevant, machine-learning-heavy majors
• Solid engineering skills. Proficiency in at least two of: Linux, Hadoop, Hive, Spark, Storm

Preferred Qualifications

• Strong machine learning background. Proficiency or publications in modern machine learning theories and applications such as deep neural nets, transfer/multi-task learning, reinforcement learning, time series or graph unsupervised learning
• Ability to think critically, objectively, rationally. Reason and communicate in result-oriented, data-driven manner. High autonomy