Machine Learning Engineer Intern, Data Trust & Safety (Rolling Intake)

Cognitioworld; Sydney; Hybrid; AUD 25,000 - 42,000; Full time

Job summary

TikTok is offering an internship in the Trust & Safety team in Sydney. You will gain hands-on exposure to building content safety systems, developing ML classifiers, and working with cross-functional teams to protect the platform globally.

This role is ideal for students in CS or related fields pursuing a degree, with interest in ML, NLP, data mining, and CV. Rolling applications, privacy policy, and a dynamic learning environment.

Qualifications

• Undergrad or postgraduate pursuing a degree in computer science or a related technical discipline.
• Strong knowledge in ML, pattern recognition, NLP, data mining or computer vision.
• Experience with recommendation, search, or advertising related projects.

Responsibilities

• Build industry-leading content safety systems for TikTok.
• Develop scalable classifiers, tools, models and algorithms using ML, CV, and data mining.
• Align with product objectives to improve trust and safety performance.
• Collaborate with cross-functional teams to protect TikTok globally.

Skills

Machine learning

Pattern recognition

NLP

Data mining

Computer vision

Recommendation systems

Search algorithms

Advertising tech

Education

CS degree in progress

Masters in CS (optional)

Job description

Responsibilities

Team Introduction

Building a world where people can safely discover, create and connect. The Trust & Safety (T&S) team at TikTok helps ensure that our global online community is safe and empowered to create and enjoy content across all of our applications. We have invested heavily in human and machine-based moderation to remove harmful content quickly and often before it reaches our general community.

Internships at TikTok aim to offer students industry exposure and hands‑on experience. Watch your ambitions become reality as your inspiration brings infinite opportunities at TikTok.

Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to TikTok and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

Responsibilities

• Build industry-leading content safety systems for TikTok;
• Develop highly‑scalable classifiers, tools, models and algorithms leveraging cutting‑edge machine learning, computer vision and data mining technologies;
• Understand product objectives and improve trust and safety strategy and model's performance;
• Work with cross‑functional teams to protect TikTok globally.

Qualifications

Minimum Qualifications

• Undergraduate, or Postgraduate who is currently pursuing a degree/master in computer science or a related technical discipline;
• Solid experience in at least one of the following areas: machine learning, pattern recognition, NLP, data mining, or computer vision;
• Experience in recommendation, search, advertising, or other related projects;

Preferred Qualifications

• Published papers in the top AI conferences or journals is a plus, including KDD, IJCAI, WWW, WSDM, ICML, NeurIPS, CVPR, ECCV, ICCV, ACL, etc.;
• Competition experience in machine learning, data mining, CV, NLP, etc.;
• Good understanding of data structures and algorithms;
• Passion for techniques and solving challenging problems.

By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here.

Job Information

Trust & Safety

Content that this role interacts with includes images, video, and text related to every‑day life, but it can also include (but is not limited to) bullying; hate speech; child safety; depictions of harm to self and others, and harm to animals. Hence, it is possible that this role will be exposed to harmful content on a daily basis.

TikTok recognises that keeping our platform safe for the TikTok communities is no ordinary job which can be both rewarding and psychologically demanding and emotionally taxing for some. This is why we are sharing the potential hazards, risks and implications in this unique line of work from the start, so our candidates are well informed before joining.

We are committed to the wellbeing of all our employees and promise to provide comprehensive and evidence‑based programs, to promote and support physical and mental wellbeing throughout each employee's journey with us. We believe that wellbeing is a relationship and that everyone has a part to play, so we work in collaboration and consultation with our employees and across our functions in order to ensure a truly person‑centred, innovative and integrated approach.

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.

Acknowledgment of Country

In the spirit of reconciliation, TikTok acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.