T

TikTok

Short-form video platform with ads

Machine Learning Engineer Intern - Tiktok-Business Risk Integrated Control-Finance Safety, 2026 Summer, PhD

Summer 2026Posted on 10/31/2025
$60/hr+ Hourly
Internship
San Jose, CA, USA
In PersonOn-site internship in San Jose for 12 weeks during Summer 2026.

About the job

Requirements
  • Currently pursuing a PhD in Computer Science, Computer Engineering, Math, Statistics or a related technical discipline
  • Able to commit to working for 12 weeks during Summer 2026
  • Good coding standards, a passion for writing code, and the ability to produce high-quality designs and code
  • Excellent problem analysis and problem-solving abilities, capable of identifying the essence of issues from complex data
  • Strong sense of responsibility, proactive attitude, and good communication and teamwork skills
Responsibilities
  • 1. Responsible for the research and development of algorithms for AI native applications and optimization of LLM (Large Language Models), driving the exploration and application of cutting-edge technologies.
  • 2. Enhance the capabilities of natural language understanding based on LLM, such as content understanding/classification, vector retrieval, structuring, and representation learning of short/long texts.
  • 3. Combine the most advanced LLM technology to summarize, understand, and classify user behavior/features.
  • 4. Explore the application of Agent in complex tasks and achieve the application of complex tasks in the risk control field based on LLM.
Desired Qualifications
  • Experience in algorithmic research and development of mainstream risk control strategies and LLM systems development experience is a plus
  • Graduating December 2026 onwards with the intent to return to degree program after the completion of the internship
  • Master the algorithm principles of LLM (Large Language Models), Fine-tuning, Prompt Engineering, vector databases, and Agent application frameworks such as LangChain/Autogen; familiarity with the latest LLM technologies and experience in training or applying them is a plus

About the company

TikTok is a short-form mobile video platform that allows users to create, discover, and share vertical videos. The app uses an algorithmic feed to surface content personalized to each user, while advertisers can run in-feed ads, branded hashtags, and sponsored challenges, with a Business Center to plan and measure campaigns. The platform differs from competitors through a large global creator community, integrated marketing tools, and rapid trend cycles that drive high engagement. Its goal is to inspire creativity and bring joy by helping people express themselves and giving brands a direct way to reach a broad audience.

Company Size

10,001+

Company Stage

Grant

Total Funding

$740K

Headquarters

Santa Monica, California

Founded

2016

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Simplify Jobs

Simplify's Take

What believers are saying

  • TikTok Shop generated about $15.8 billion in U.S. sales in 2025.
  • October 2026 AI shopping tools and one-click checkout deepen in-app monetization.
  • TikTok One Pay's sub-30-day creator payouts strengthen brand and creator supply.

What critics are saying

  • August 2026 layoffs cut 325 U.S. roles, weakening moderation and commerce execution.
  • The U.S. joint venture still faces national-security scrutiny over algorithm licensing and control.
  • A future U.S. divestiture deadline or ban would break TikTok's American growth engine.

What makes TikTok unique

  • ByteDance's recommendation engine still drives unmatched discovery and creator reach globally.
  • TikTok Shop, One Pay, and Ad Network fuse content, commerce, and advertising.
  • Local partnerships with IMDA, Roar AdX, and Converge embed TikTok into markets.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Holidays

Paid Sick Leave

Paid Vacation

Parental Leave

Wellness Program

Growth & Insights and Company News

Headcount

6 month growth

↑ 20%

1 year growth

↑ 20%

2 year growth

↑ 20%
Reflect.ee
Oct 8th, 2026
New York lawsuit accuses TikTok of deceiving teens with safety features.

New York lawsuit accuses TikTok of deceiving teens with safety features. A New York state lawsuit claims that TikTok offered young users a fictitious safety feature instead of a genuine one. The platform's experiments involved thousands of minors, for whom the advertised "Algo Refresh" tool effectively did not function. New York State has sued TikTok The accusation concerns a fake 'Algo Refresh' safety feature The experiment affected thousands of minor users More than 24 lawsuits have been filed against the company by US states The State of New York has filed a lawsuit against the social media platform TikTok, alleging that the company provided teenagers and children with a fake alternative instead of an actual safety feature. According to the accusation, the platform's advertised "Algo Refresh" function, which was supposed to allow users to reset their recommendation algorithm and avoid unwanted or harmful content, did not work. Experimental project with minors According to court documents, TikTok's experiments included thousands of users, including minors who had activated the "Algo Refresh" tool. This feature was supposed to stop the streaming of unwanted videos, but in reality, the content for these users remained unchanged. Unlike users who did not participate in the experiment and had access to the full version, the teenagers involved in the test did not receive the desired changes in their recommendation feed. This created a situation where users mistakenly believed they had made their environment safer. Other initiated experiments The New York lawsuit is one of more than two dozen similar cases that US states have initiated against the social media giant. The company is accused of designing its platform in a way that promotes addiction and misleads users regarding the effectiveness of safety measures. In addition to the "Algo Refresh" case, data about other experiments has emerged. According to previous reports, TikTok withheld a safety feature from 15 million US users. One of these was a teenager who later died by suicide. In response, TikTok stated that it works constantly to improve the platform and, like most companies, regularly tests new products and features to understand how they perform in a real-world environment. No comments yet. Technology What to know Tallinn University study: rapid tests may not accurately predict long-term shelf life of materials. * Duration of the study: 10 years * Objects studied: 24 polysaccharides * Publication: Journal Food Hydrocolloids * Test method: 80-degree heating vs. room temperature Technology Asos warns in London: customer data breach more extensive than initially reported. The online retailer Asos has admitted that detailed information belonging to millions of customers, including their search history and personal data, fell into the hands of cybercriminals. The company has confirmed that while bank details and passwords have not been compromised, there is an increased risk of fraudulent emails and phishing attacks. Technology What to know Study: OpenAI safety measures for teenagers in ChatGPT are insufficient. * OpenAI launched safety measures for teenagers in August 2026 * Common Sense Media's testing systems did not send alerts for new accounts * The Tumbler Ridge shooting in Canada (February 2026) was linked to the misuse of an AI platform Technology What to know On Meta platforms: new AI tools to curb child exploitation. * 33.2 million posts removed in the first half of 2026 * 97% of content detected automatically before user reports * 18 billion dollars cost of the court settlement * 5.3 million posts removed in India

Travel Professional NEWS
Oct 7th, 2026
AI agents are rewriting who controls travel booking, as Google, Meta, TikTok and Booking Holdings headline The Phocuswright Conference 2026.

AI agents are rewriting who controls travel booking, as Google, Meta, TikTok and Booking Holdings headline The Phocuswright Conference 2026. With 61% of travel businesses already experimenting with or scaling agentic AI, the newly published program for Nov. 17-19 in Fort Lauderdale examines where power moves next. NEW YORK, NY, Oct. 6, 2026 - The full program for The Phocuswright Conference 2026, taking place Nov. 17-19 at the Diplomat Beach Resort in Fort Lauderdale, Florida, is now live. AI agents and AI-powered search are fast becoming the new gatekeepers of travel, and the companies with the most to win and lose will meet next month to debate what happens next. Executives from Booking Holdings, Expedia Group, Google, Meta, TikTok, Hilton, Hopper, Skyscanner, United Airlines, Priceline and more will take the stage to examine the forces rewriting how travel is discovered, distributed and sold. This year's theme is Pressures. Power. Pivots. AI, platform power, rising traveler expectations and regulatory scrutiny are changing how travel demand is created, captured and converted. The program examines what is squeezing the industry, where control is moving and what companies must change to compete. Last year's event drew senior executives from more than 50 countries. Phocuswright research published earlier this year, Budgets, Barriers and the Race to Agentic AI, found that 61% of travel businesses surveyed are already experimenting with or scaling agentic AI, and more than half are exploring or implementing the new interoperability standards that allow AI agents to work across systems. Legacy technology still runs the business while AI-native competitors move faster. Teresa Mackintosh of Aven Hospitality, John Mangelaars of Travelport and Abhijit Patel of Choice Hotels will address how to modernize the tech stack without disrupting operations. Phocuswright's Mike Coletta will present new research on AI adoption, budgets and the startup funding outlook. Capital is getting more selective. Investors Amy Burr of SKY VC, Mark Mahaney of Evercore and Mia Morisset of Inovia Capital, moderated by Jake Fuller of BTIG, will make their case for where the smart money goes in travel. Global turbulence is testing demand. Geoff Freeman of the U.S. Travel Association will assess where the U.S. is gaining and losing ground with international travelers. CEOs Filip Filipov of OAG, Gonzalo García Estebarena of Despegar, Mohit Kabra of MakeMyTrip and Brigit Zimmerman of Priceline will compare how companies are adapting across regions. AI interfaces are becoming the new gatekeepers. Steve Hafner, co-founder and CEO of Lola, a Booking Holdings company, will share what comes after traditional search. James Byers of Google will show how travelers use Google's AI travel tools and what that means for visibility and booking. Niklas Andréen of Sabre, Brett Burgess of ATPCO and Steve Domin of Duffel will examine where power shifts when AI agents become the seller. The fight for the traveler relationship is widening. Sarah Moore of Capital One, Jane Gasparian Lee of United Airlines and Carey Kyler of AARP Services will debate how airlines, banks and membership brands compete for loyalty. Alfonso Paredes of Expedia Group and Omri Morgenshtern of Agoda will lay out their B2B strategies as embedded travel brings new sellers into the market. Chris Wilroy of Hilton and Kerry Mack of Highgate Hotels will tackle who holds the guest as hotel distribution fragments. Frédéric Lalonde of Hopper will offer a candid view of where established players are most exposed, and Steve Singh of Spotnana will join for an executive interview. The funnel is moving from search to intelligence. Erik Blachford of Pine5 Ventures opens with a data-driven provocation, then joins Bryan Batista of Skyscanner, Lynn Carpenter of Visit California, Jeremy Jauncey of Beautiful Destinations and Tsega Worku of TikTok to examine how social and AI discovery shape where travelers go. Meta will also take the stage in a Changemaker session. Human expertise is being redesigned. Phocuswright's Alicia Schmid will present new consumer and travel advisor research on AI in trip planning. Matthew Upchurch of Virtuoso, Henley Vazquez of Fora Travel and Evan Konwiser of American Express Global Business Travel will examine the hybrid human and AI model. The industry is moving from experimentation to execution. A working session held under the Chatham House Rule will draw on Phocuswright's "The Race to Agentic" research to close the gap between AI ambition and real transformation. Startups and scaleups will also compete for the Travel Innovation and People's Choice Awards at Launch. "No single company has the full picture of where travel is heading. Not the platforms, not the suppliers, not the investors," said Pete Comeau, Managing Director, Phocuswright. "That's why we put them in one room. The decisions being made right now about AI and distribution will set the terms of competition for the next decade." "Our job is to make sure the people making those decisions hear from each other first, test their assumptions against the data and leave with sharper answers than they brought," added Comeau. The full program is available at www.phocuswrightconference.com. Early-bird registration of $3,999 is available until Oct. 30.

TASS
Oct 7th, 2026
Moscow court fines TikTok, Google $116,987 each.

Moscow court fines TikTok, Google $116,987 each. The Tagansky District Court has previously fined Google on numerous occasions for administrative offenses MOSCOW, October 7. /TASS/. Moscow's Tagansky District Court fined Google and social media platform TikTok 10 mln rubles ($116,987) each for repeated failure to comply with Russian law, the Moscow City Court's press service told TASS. "By rulings of the Tagansky District Court of Moscow dated October 7, 2026, Google LLC and TikTok Pte. Ltd. were found guilty of administrative offenses under Part 3 of Article 13.49 of the Russian Code of Administrative Offenses (repeated failure by foreign entities on the Internet to fulfill obligations stipulated by Russian law). The court imposed an administrative fine of 10,000,000 rubles on each company," the press service said. On October 7, Moscow's Tagansky District Court again ruled to fine Google 3.8 mln rubles ($44,455) for refusing to remove prohibited information. The Tagansky District Court has previously fined Google on numerous occasions for administrative offenses. The administrative cases were prompted by YouTube videos promoting non-traditional sexual relations and discrediting the Russian military. As previously reported, Google's debt to Russia for administrative offenses amounted to 2 undecillion rubles (a number with 36 zeros), and continues to increase daily due to overdue payments. The company can return to the Russian market only if it complies with the court ruling.

Avenews
Oct 7th, 2026
TikTok opens its ad network to US-targeted campaigns.

TikTok opens its ad network to US-targeted campaigns. The October 5 announcements also add campaign-management connectors on AI platforms, while shopping and lead-generation tools remain in eligibility-based testing. TikTok has opened TikTok Ad Network to campaigns targeting the US, letting advertisers place existing campaigns in other companies' apps through TikTok Ads Manager. The company announced the launch at Advertising Week New York on October 5, 2026, Music Business Worldwide reported.[1] The network was previously called Pangle. TikTok says the US is its 48th market and that advertisers can use their existing campaigns without setting up new ones. The network is generally available for US-targeted campaigns, unlike the shopping and lead-generation tools announced alongside it, which are being tested with eligible participants.[1] What TikTok's reach and performance figures measure. TikTok's headline reach figures describe the network worldwide, not its US audience. Its estimate of an additional audience beyond TikTok comes from US-only internal measurement.[1] TikTok's reported ad-network reach | Measure | Scope | TikTok's figure | | Apps reached | Worldwide | Nearly 400,000[1] | | Daily active users | Worldwide | More than 1 billion[1] | | Additional audience not on TikTok | US-only internal measurement | 95 million[1] | TikTok says half of the network's users are not on TikTok. The company also claims advertising gains from automatic placement, which includes the network, compared with campaigns using a single placement. Those claims come from an April 2024 internal test across Pangle's markets, not a test of the new US launch.[1] TikTok's claims from its April 2024 internal test | Advertising measure | Claimed improvement over single placement | | Cost per acquisition: the cost of gaining a customer or a targeted action | 65%[1] | | Return on ad spend: revenue relative to advertising spending | 63%[1] | Available connectors, limited shopping and lead-generation tests. TikTok also said its TikTok for Business Model Context Protocol, or MCP, is available as a connector on several AI platforms. MCP provides a way for AI agents - software that carries out tasks - to connect to advertising tools. Developers can use it to build agents that plan, launch and manage campaigns.[1] TikTok introduced MCP at its TikTok World product summit in May. The newly announced connectors include Claude, Kimi, Manus, Perplexity, Replit, Snowflake and Tencent WorkBuddy.[1] The commerce tests start with Buy Direct and Shopping Assistant. TikTok describes Buy Direct as an in-app checkout that lets people buy from brands without leaving TikTok, including with one click from its For You feed. Shopping Assistant is a conversational AI agent designed to answer questions about product details, shipping, sizing and availability in one chat.[1] TikTok also introduced Agentic Leads, an AI agent intended to help advertisers find potential customers through TikTok direct messages and lead forms on advertisers' own websites. TikTok says it is building the commerce tools with partners including Salesforce, Shopify, Shoplazza and Stripe.[1] Access to the commerce and lead-generation tools is through eligibility-based testing, rather than general release. Buy Direct also requires integration with the Universal Commerce Protocol, an open standard for commerce using software agents. These integrations are requirements for using the checkout, not evidence of improved advertising performance.[1]

The Punch
Oct 6th, 2026
Foundation sues as TikTok restricts access to Kano, Kebbi, others.

Foundation sues as TikTok restricts access to Kano, Kebbi, others. News October 6, 2026 6:26 pm The Foundation for Digital Justice has sued TikTok Inc. at the Federal High Court in Abuja, alleging that the social media platform is responsible for the widely reported restricted access that millions of users in Kaduna, Kano, Kebbi and Sokoto states continue to experience. The organisation, in the suit filed at Federal High Court, Abuja, by its lead counsel, Festus Ogun, on October 5, 2026 and made available to PUNCH Online on Tuesday, said the alleged restrictions amounted to violations of Nigerians' constitutional rights to freedom of expression and freedom from discrimination. The suit, brought under the Fundamental Rights Enforcement Procedure Rules, 2009, seeks an order directing TikTok to restore access to users in the affected states and stop imposing what the organisation described as arbitrary restrictions on them. In an affidavit filed in support of the action and seen by PUNCH Online on Tuesday, a legal officer with the Foundation for Digital Justice, Abidat Idowu, said TikTok users in the four states began experiencing difficulties accessing the platform around September 11. She stated that by September 14, the platform had become "completely restricted and inaccessible to millions of Nigerian Users in Kaduna, Kano, Kebbi and Sokoto States." According to the affidavit, the disruption affected users on standard mobile data connections, with feeds freezing while scrolling, videos failing to load and uploads repeatedly stalling. "These users cannot load videos, refresh their feeds and upload content on TikTok," Idowu stated. She further alleged that the restriction had deprived affected users of access to information and the ability to participate in online discourse. "Millions of Nigerian Users in Kaduna, Kano, Kebbi and Sokoto States are left out of access to information, they cannot disseminate information, they cannot receive information and cannot express their opinions on the Respondent's TikTok's platform owing to the restriction and/or disruption," the affidavit stated. See more Punch stories on Google. The organisation said some affected users had been able to regain normal access by using virtual private networks, or VPNs, which can make an internet connection appear to originate from another location. It also alleged that users in other parts of Nigeria continued to have unrestricted access to TikTok. "Disturbingly, except in Kaduna, Kano, Kebbi and Sokoto States, users in all other parts of Nigeria continue to enjoy unrestricted and unfettered access and usage of Respondent's TikTok App," Idowu stated. The Foundation argued that TikTok had not explained why users in the four states were allegedly subjected to a different level of access. "The Respondent has also not provided any explanation for the obvious exclusion, discrimination and restriction of access against all TikTok users in Kaduna, Kano, Kebbi and Sokoto States," the affidavit said. Discover more Shop African Art The organisation is asking the court to determine whether TikTok's alleged restriction violates Section 39 of the 1999 Constitution, which protects freedom of expression, and Article 9 of the African Charter on Human and Peoples' Rights. It is also asking the court to determine whether the alleged differential treatment of users in the four states violates Section 42 of the Constitution and Article 2 of the African Charter, which provide protections against discrimination. The Foundation argued that access to TikTok had become significant beyond entertainment, citing its use for communication, journalism, business, civic participation and political and social discourse. "The Respondent's platform is very critical for communication, journalism, civic participation, business, political and social discourse in Nigeria and the restriction of millions of TikTok users in Kaduna, Kano, Kebbi and Sokoto States has unduly excluded them," it said. It also argued that activities such as posting, liking, reposting and replying to content constituted forms of expression that were affected by the alleged restriction. The affidavit stated, "restricted accounts like those of millions of TikTok users in Kaduna, Kano, Kebbi and Sokoto States are prevented from making post, viewing any post made on TikTok, replying to post, reposting or liking them." It added that "Replying, posting, reposting and liking are all 'expressive conduct' that the Respondent's restriction inhibits." The organisation further claimed that the alleged restriction had effectively excluded residents of the affected states from what it described as a public forum. "By restricting millions of TikTok users in Kaduna, Kano, Kebbi and Sokoto States, the Respondent has excluded citizens of Nigeria resident in the states from a public forum," the affidavit stated. The Foundation is seeking five principal orders from the court. It wants the court to declare the alleged restriction "wrongful, unconstitutional, arbitrary" and a violation of the right to freedom of expression. It is also asking for a declaration that restricting users in the four states while allowing users elsewhere in Nigeria continued access amounted to a violation of the right to freedom from discrimination. The organisation further wants an order directing TikTok to immediately remove the alleged restriction and a perpetual injunction preventing the company from imposing similar restrictions on users in the affected states or elsewhere in Nigeria without lawful justification. In addition, it is asking TikTok to publish a public apology in three newspapers with nationwide circulation within seven days of judgment for what it described as the violation of the applicant's fundamental rights. The Foundation said the action was necessary to protect digital rights and the rule of law. "This lawsuit is imperative for the enforcement of fundamental rights to freedom of expression and freedom from discrimination and preservation of the rule of law," the affidavit stated. It added, "Unless the reliefs sought herein are granted by this Honourable Court, the Respondent will continue to violate the fundamental rights of millions of TikTok users in Kaduna, Kano, Kebbi and Sokoto States, with reckless abandon."

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