2 days ago

Machine Learning Engineer, TikTok - Business Governance

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 4 hours agoStatus: Live

Job Summary

Build next-generation Trust & Safety systems for TikTok, Lemon8, and short-form video, using large language models and multimodal foundation models. Develop content safety algorithms across text, image, audio, and video; improve content moderation pipelines with deep learning; and own LLM/MLLM training and post-training (SFT, RLHF, DPO, safety alignment). Explore and productionize AI agents, multimodal reasoning, and video understanding for scalable, robust moderation.

Location: San Jose

Employment Type: Full time

Job Function: Data Science & Machine Learning

Seniority: Mid level

Key Responsibilities

•Develop content safety algorithms for TikTok, Lemon8, and short-form drama platforms, covering multimodal understanding and risk detection across video, text, image, and audio.
•Leverage machine learning, deep learning, and large model technologies to improve content moderation pipelines and ensure model robustness in production.
•Own training and application of LLMs and MLLMs for content safety, including post-training techniques such as SFT, RLHF, DPO, and safety alignment.
•Drive exploration and productionization of emerging capabilities like AI Agents, multimodal reasoning, and video understanding to build intelligent moderation systems.

Key Requirements

•Bachelor’s degree or above in Computer Science, Software Engineering, Artificial Intelligence, Mathematics, or a related field.
•Strong understanding of machine learning and deep learning, including Transformer architectures, LLMs, and MLLMs.
•Hands-on experience with Python, PyTorch, distributed training, and large-scale data processing with solid algorithmic and engineering capabilities.
•Proven ability to solve complex problems and collaborate effectively across cross-functional teams.
•Desirable: hands-on experience with LLM post-training, multimodal understanding, AI Agents, or Trust & Safety systems.

Experience:Trust & SafetyContent moderationLLM post-trainingMultimodal modelsAI Agents

Education:Bachelor's in Computer Science, Software Engineering, Artificial Intelligence, Mathematics (or related fields)

Skills:Problem-solvingCross-functional collaboration

Tech Stack:PythonPyTorchTransformer architecturesLLMsMLLMsDistributed trainingLarge-scale data processingSFTRLHFDPOSafety alignmentMultimodal modelsAI AgentsMultimodal reasoningVideo understanding

Company Brief

TikTok

Short-form video platform that lets users create, share, and discover entertainment content through algorithmic recommendations. It also offers advertising and creator tools for brands, influencers, and businesses.

Industry: Digital Media

Company Size: Enterprise (1,001+ employees)

Growth: Scaleup

Headquarters: Singapore, Singapore

Founded: 2016

Website LinkedIn

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TikTok

2 days ago

Machine Learning Engineer, TikTok - Business Governance

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 4 hours agoStatus: Live

Job Summary

Location: San Jose

Employment Type: Full time

Job Function: Data Science & Machine Learning

Seniority: Mid level

Key Responsibilities

•Develop content safety algorithms for TikTok, Lemon8, and short-form drama platforms, covering multimodal understanding and risk detection across video, text, image, and audio.
•Leverage machine learning, deep learning, and large model technologies to improve content moderation pipelines and ensure model robustness in production.
•Own training and application of LLMs and MLLMs for content safety, including post-training techniques such as SFT, RLHF, DPO, and safety alignment.
•Drive exploration and productionization of emerging capabilities like AI Agents, multimodal reasoning, and video understanding to build intelligent moderation systems.

Key Requirements

•Bachelor’s degree or above in Computer Science, Software Engineering, Artificial Intelligence, Mathematics, or a related field.
•Strong understanding of machine learning and deep learning, including Transformer architectures, LLMs, and MLLMs.
•Hands-on experience with Python, PyTorch, distributed training, and large-scale data processing with solid algorithmic and engineering capabilities.
•Proven ability to solve complex problems and collaborate effectively across cross-functional teams.
•Desirable: hands-on experience with LLM post-training, multimodal understanding, AI Agents, or Trust & Safety systems.

Experience:Trust & SafetyContent moderationLLM post-trainingMultimodal modelsAI Agents

Education:Bachelor's in Computer Science, Software Engineering, Artificial Intelligence, Mathematics (or related fields)

Skills:Problem-solvingCross-functional collaboration

Tech Stack:PythonPyTorchTransformer architecturesLLMsMLLMsDistributed trainingLarge-scale data processingSFTRLHFDPOSafety alignmentMultimodal modelsAI AgentsMultimodal reasoningVideo understanding

Company Brief

TikTok

Industry: Digital Media

Company Size: Enterprise (1,001+ employees)

Growth: Scaleup

Headquarters: Singapore, Singapore

Founded: 2016

Website LinkedIn