Senior Machine Learning Engineer, TikTok BRIC Account Security (Singapore)

TikTok Inc.; Singapore; Presencial; SGD 150.000 - 210.000; Jornada completa

Descripción de la vacante

TikTok Inc. is seeking a security data scientist to own threat risk detection across our global platforms, including short video, live streaming, and payments.

You will apply machine learning to large-scale behavioral data to identify fraud, account abuse, and risk, helping to build privacy‑safe, scalable risk solutions. You will work with cross‑functional teams to implement robust detection systems, develop data warehouse features, and evaluate model effectiveness in production.

Formación

• Master’s degree or above in Computer Science, Statistics, Artificial Intelligence, or a related field.
• Proficiency in one or more programming languages such as C++, Java, or Python.
• Familiarity with SQL/HQL and hands‑on experience with Hadoop, Hive, Spark, or Flink.
• Solid understanding of machine learning, deep learning, and large language models; knowledge of clustering and related techniques.

Responsabilidades

• Take ownership of account security issues across TikTok and other overseas product lines (short video, live streaming, payment, e‑commerce, local services, etc.).
• Leverage large‑scale behavioral data from hundreds of millions of accounts, applying algorithms to mine datasets and identify security issues (fake registrations, account takeovers, trading, hijacking).
• Analyze and uncover hidden data correlations to build an account risk perception framework for early detection and rapid response to risks.
• Contribute to the development of account risk control infrastructure, including data warehouses, feature engineering, and machine learning models.

Conocimientos

C++

Java

Python

Big data

ML

Educación

Master’s degree or above in CS/Statistics/AI

Herramientas

SQL/HQL

Hadoop

Hive

Spark

Flink

Descripción del empleo

Responsibilities

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. Responsibilities:

• Take ownership of account security issues across TikTok and other overseas product lines (short video, live streaming, payment, e-commerce, local services, etc.).
• Leverage large‑scale behavioral data from hundreds of millions of accounts, applying algorithms to mine massive datasets and identify various account security issues, including but not limited to fake registrations, account takeovers, account trading, account nurturing, and session hijacking.
• Analyze and uncover hidden data correlations to build an account risk perception framework, enabling early detection and rapid response to emerging risks.
• Contribute to the development of account risk control infrastructure, including data warehouses, feature engineering, and machine learning models.

Qualifications

Minimum Qualifications:

• Master’s degree or above in Computer Science, Statistics, Artificial Intelligence, or a related field.
• Solid engineering skills. Proficiency in one or more programming languages such as C++, Java, or Python.
• Familiarity with big data technologies such as SQL/HQL, and hands‑on experience with one of Hadoop, Hive, Spark, or Flink.
• Solid understanding of machine learning, deep learning, and large language models; knowledge of clustering, community detection, and related techniques, with the ability to validate algorithm effectiveness and apply them to risk control scenarios.

Preferred Qualifications:

• Prior experience in combating online fraud, abuse, or anti‑cheating in the internet industry .
• Familiarity with emerging technologies such as large language models (LLMs) and AI Agents.

About TikTok

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day. We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.