A

AppLovin

Sells AI-targeted ads inside mobile games

Machine Learning Engineer - Feed Recommendation

Full-TimeUpdated on 10/14/2026
No salary listed
Mid
Singapore
In Person
AI & Machine LearningApplied Machine Learning

About the job

Requirements
  • 3–5 years of experience building production-grade machine learning systems.
  • Strong hands-on experience in recommendation systems.
  • Experience with one or more of recall systems or candidate generation, ranking models, click-through-rate prediction, and multi-task or multi-objective optimization.
  • Proficiency in Python and machine learning frameworks such as PyTorch or TensorFlow.
  • Strong software engineering fundamentals.
Responsibilities
  • Design and deploy scalable recommendation pipelines.
  • Develop and optimize click-through-rate and conversion-rate prediction models.
  • Improve multi-objective ranking strategies for retention, monetization, diversity, and long-term value.
  • Address cold-start challenges for new users and new content.
  • Run offline experiments and online A/B testing to drive measurable gains.
  • Collaborate with product, engineering, and monetization teams.
  • Iterate on model performance, latency, and system reliability.
  • Improve user retention through content recommendation.
  • Drive measurable improvement in engagement and monetization metrics.
  • Build core ranking mechanics beyond incremental model tuning.
  • Shape the foundation of a scalable, long-term content ecosystem.
Desired Qualifications
  • Experience with large-scale data systems and distributed training.
  • Experience improving retention or long-term user value.

About the company

AppLovin runs an advertising platform that uses AI to place ads inside mobile apps, mostly games, for app developers and consumer brands looking for customers. In 2023, it overhauled the AI models behind its Axon ad engine, an upgrade that sharply raised advertiser spending and helped AppLovin join the S&P 500 in 2025. Advertisers set a budget and target return in AppLovin Ads Manager, and Axon predicts who will install an app or buy a product, then bids to show them video ads or playable demos. App makers sell their ad space through its MAX auction tool, and AppLovin keeps a share of what advertisers spend. The company was founded in 2012 and is based in Palo Alto, California.

Company Size

501-1,000

Company Stage

IPO

Headquarters

Palo Alto, California

Founded

2012

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Simplify Jobs

Simplify's Take

What believers are saying

  • Sales keep compounding: revenue rose 53% to $1.92 billion in the June 2026 quarter, with about $2.07 billion forecast next.
  • Non-game advertisers add a second engine: their spending in the June 2026 quarter ran 28% above the 2025 holiday peak.
  • Profits protect jobs: AppLovin kept $1.27 billion, or 66% of revenue, as net income in the June 2026 quarter.

What critics are saying

  • Game-engine maker Unity is catching up: its AI-driven ad sales grew 63% in the June 2026 quarter, faster than AppLovin's.
  • Stock grants have shrunk: shares fell 58% this year through October 8, 2026, while Unity's rose 4%.
  • Growth hinges on its AI engine: slower upgrades to Axon, its ad-targeting system, left June 2026 quarter sales below forecasts.

What makes AppLovin unique

  • It runs unusually lean: 898 employees brought in $5.48 billion of revenue in 2025, over $6 million per person.
  • Most hit games run its ad auctions: 73% of ad-supported top-downloaded games used its MAX tool in March 2025.
  • Its co-founder keeps control: CEO Adam Foroughi and former finance chief Herald Chen direct a majority of shareholder votes.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Company Match

Employee Stock Purchase Plan

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

-1%

2 year growth

-1%
Network Today
Oct 6th, 2026
Digital advertising giant allegedly served 'obscene' ads to kids, 'graphic depictions of sex': lawsuit.

Digital advertising giant allegedly served 'obscene' ads to kids, 'graphic depictions of sex': lawsuit. By News Room 6 October 2026 4 Mins Read Digital advertising giant AppLovin has allegedly been serving sexually explicit and violent ads in games played by kids - all while bypassing parental controls meant to shield them, according to allegations in a bombshell lawsuit filed on Monday. Filed in California state court, the lawsuit alleges that AppLovin - a $100 billion company that helps software developers sell ads and monetize their apps - has been "exposing children to graphic depictions of sex, violence, and sexual assault delivered directly to their mobile devices through games designed for and rated as safe for children." Alarming screenshots included the lawsuit show a variety of scantily-clad cartoon women in sexually suggestive situations including bondage, as well as ads for alcohol, vaping devices and cannabis gummies that appeared in games that were rated "E for everyone" on Google's Play Store. "While parents do everything they can to protect their kids playing mobile games from harmful content, AppLovin strips away those digital safeguards and steers obscene advertisements to children anyway," according to the lawsuit filed by San Diego County officials. AppLovin representatives did not respond to a request for comment. San Diego County has accused AppLovin of violations under California's False Advertising Law and Unfair Competition Law. Its lawyers are seeking injunctive relief as well as unspecific restitution and civil penalties. AppLovin's internal policies state that the company does not "knowingly collect personal information from children or serve advertisements to children," according to its website. The lawsuit accused AppLovin of collecting vast troves of kids' data through a technique called "fingerprinting" to target children. The information gathered was allegedly "precise enough to pinpoint where kids live, where they study, and whether they are sleeping." "AppLovin has turned child-friendly mobile games into a surveillance platform that tracks childrens and adults alike, monetizes their personal information, and deploys a deceptive user interface to mislead and coerce users into generating revenue for the company," the lawsuit says. The Silicon Valley company, which was once in the running to buy TikTok, has increasingly faced scrutiny over its data practices since last year. San Diego's lawsuit cites investigations compiled by short-seller firms Fuzzy Panda, Culper Research and Muddy Waters, which "collectively alleged that the company collected data from children and showed obscene ads in games played by minors." In October 2025, The Post reported that state regulators, including staff from the attorneys general from Delaware, Oregon and Connecticut, had reached out to multiple short sellers, seemingly as part of a preliminary investigation into AppLovin. The current status of those probes could not immediately be learned. Elsewhere, the Securities and Exchange Commission launched an investigation into AppLovin's advertising practices last. However, the company's CFO Mat Stumpf said last August that the SEC's investigation had closed without any enforcement action. AppLovin has strenuously denied any wrongdoing - with its CEO Adam Foroughi going as far as to write a blog post disputing the short sellers' allegations in February 2025. "It's disappointing that a few nefarious short-sellers are making false and misleading claims aimed at undermining our success, and driving down our stock price for their own financial gain, rather than acknowledging the sophisticated AI models our team has built to enhance advertising for our partners," Foroughi said at the time. The new lawsuit coincided with the launch of San Diego County's new Consumer Fairness and Public Protection Unit, which also announced lawsuits targeting Roblox and Polymarket over apparent violations. "People should be able to trust the products they buy, the apps their kids use and the companies they deal with," San Diego County Boar Chair Terra Lawson-Remer said in a statement. "Families are already stretched thin by the cost of living. They should not also have to pay the price when companies mislead them, misuse their information or put their kids at risk," Lawson-Remer added.

The Motley Fool
Oct 6th, 2026
The 2 best Nasdaq-100 stocks to buy now, according to Wall Street.

The 2 best Nasdaq-100 stocks to buy now, according to Wall Street. Wall Street says AppLovin and Axon Enterprise are the best Nasdaq-100 stocks to buy now. Key points. * Wall Street's median target prices imply substantial upside in AppLovin and Axon. * AppLovin is an ad tech company that uses artificial intelligence to optimize campaign performance. * Axon is a public safety company to develops connected devices and software for law enforcement. * Motley Fool Issues Rare "Total Conviction" Buy Alert" The Nasdaq-100 includes the 100 largest non-financial companies in the Nasdaq Composite (^IXIC +1.05%). It is widely regarded as a benchmark for growth stocks because it is heavily weighted toward the technology sector. While the broad-based S&P 500 (^GSPC +0.66%) added 323% during the last decade, the Nasdaq-100 added 593%. Listed below are the two best Nasdaq-100 stocks to buy today based on the upside implied by Wall Street's median 12-month target prices as of Oct. 4: * AppLovin (APP +5.13%) has a median target price of $500 per share. That implies 86% upside from its current share price of $268. * Axon Enterprise (AXON -0.37%) has a median target price of $700 per share. That implies 69% upside from its current share price of $413. Here's what investors should know about these stocks. AppLovin: 86% upside implied by Wall Street's median target price. AppLovin is an ad tech company that initially focused on mobile gaming, with products that helped publishers market and monetize applications. But last year, the company expanded into e-commerce advertising with a self-service platform. AppLovin recently started adding generative AI creative tools, and it plans to automate the whole advertising process in the future, from campaign creation to optimization. AppLovin has a key competitive advantage in its Axon recommendation engine. The underlying machine learning models are trained to optimize ad buying in real time based on which users are predicted to take valuable actions. The models become more effective with each new data point, creating a network effect that leads to better recommendations over time. AppLovin reported decent financial results in the second quarter despite narrowly missing top-line estimates. Revenue increased 53% to $1.9 billion, and GAAP net income increased 57% to $3.76 per diluted share. At the midpoint, management expects revenue to total $2.07 billion in the third quarter, implying 47% growth. Wall Street estimates AppLovin's earnings will grow at 35% annually through 2027. That makes the current valuation of 22 times earnings look cheap, and it explains why so many analysts see substantial upside in the stock. Now is a good time to buy a small stake in this ad tech company. Premium Feature Moneyball Superscore ( 5.13 %) $ 13.75 Current Price Key data points. Market Cap Day's Range $ 270.00 - $ 287.20 52wk Range $ 266.84 - $ 738.01 Gross Margin Axon Enterprise: 69% upside implied by Wall Street's median target price. Axon develops public safety products for law enforcement, enterprises, and government agencies. Its hardware portfolio includes conducted energy weapons (Tasers), body-worn cameras, and in-car cameras. Its software portfolio includes products for digital evidence management, records management, emergency communications, and real-time operations. Missed Nvidia in 2009? This Rare signal is flashing again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. If you'd invested $5,000 then, you'd be sitting on $3,041,109 today.* Now, for the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia. It's a key player in the $1.8 trillion space race, and with the stock recently sitting 20% off its highs, the window to get in early is closing fast. *Stock Advisor returns as of October 6, 2026. Axon is the market leader in Tasers, body-worn cameras, and digital evidence management software, and the company is supercharging its products with AI features that improve law enforcement productivity and efficiency. For instance, Draft One uses body-worn camera video and generative AI to draft reports. And Axon Fusus uses AI to process video and alert human operators to situations like physical fights and vehicle crashes. Axon reported strong second-quarter financial results that handily beat estimates on the top and bottom lines. Revenue increased 35% to $904 billion, driven strong growth across connected devices and software products, including newer solutions for dispatch, real-time operations, and AI. Meanwhile, non-GAAP EBITDA increased 41% to $242 million. The company also raised its full-year guidance, which now implies 33% revenue growth in 2026. Wall Street expects Axon's adjusted earnings to grow at 35% annually through 2027. That makes the current valuation of 61 times adjusted earnings look rich, but not outrageously expensive. Patient investors with a time horizon of at least five years can buy a few shares today, but I would keep the position relatively small unless the stock drops 20% or so. If that happens, the valuation would be much more attractive. Could AppLovin help you build long-term wealth? Before you buy stock in AppLovin, consider this: The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now... and AppLovin wasn't one of them. The 10 stocks that made the cut could produce monster returns in the coming years. Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of its recommendation, you'd have $361,650!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of its recommendation, you'd have $1,437,517!* Now, it's worth noting Stock Advisor's total average return is 936% - a market-crushing outperformance compared to 213% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors. *Stock Advisor returns as of October 6, 2026.

Insurance Journal
Oct 6th, 2026
San Diego sues AppLovin over explicit ads shown to kids' devices.

San Diego sues AppLovin over explicit ads shown to kids' devices. San Diego County has filed a lawsuit against mobile advertising technology company AppLovin Corp., alleging that it bypassed parental controls to serve ads for adult dating services, alcohol, vaping and graphic sexual content in games played by children. AppLovin, which helps developers find users and sell advertising in their apps, collected sensitive data from children's devices even when parental controls and ad-tracking opt-outs were enabled, according to the complaint. This included "information precise enough to pinpoint where kids live, where they study and whether they are sleeping," according to the complaint, filed with the San Diego Superior Court. The AppLovin case is one of three filed on Monday by San Diego County's newly formed Consumer Fairness and Public Protection Unit, which was set up in response to what local officials describe as dwindling federal enforcement of consumer protections. The unit is suing gaming company Roblox Corp. for inadequate protections to stop adults posing as children and contacting young users. It's also suing 3D-printing materials firm Polymaker for marketing certain materials to people assembling illegal, untraceable guns. AppLovin didn't immediately respond to a request for comment. The company's policies prohibit collecting children's data or using its technology to target kids with ads. It states it does not "knowingly collect personal information from children or serve advertisements to children," in its policies. The way a consumer typically interacts with AppLovin is by using an app or playing a mobile game that uses its technology to power ads for other apps. San Diego County's lawsuit alleges that AppLovin shows ads in apps marked appropriate for kids that depict sex acts, such as bondage. These ads appear on devices with parental controls enabled, according to the suit. The complaint includes screenshots of some of the ads, including for a sexualized AI chatbot app, shown in a physics-based puzzle game installed on an Android device configured for a six-year-old with Google's parental controls enabled. Another screenshot shows ads for cannabis gummies shown on a device with the same controls. The two main app store operators, Apple and Google, offer ways to block app developers and ad tech companies from tracking children's digital activity. AppLovin bypassed these settings using a technique known as fingerprinting to track children for ad-targeting purposes without parental consent, according to the complaint. AppLovin "disregards child safety tools to harvest children's sensitive personal information" to "feed it into the company's artificial intelligence advertising engine," the complaint said. The Securities and Exchange Commission began investigating AppLovin for its advertising practices last year, Bloomberg reported. AppLovin's Chief Financial Officer Matt Stumpf said the agency had closed its investigation without recommending enforcement action during an earnings call in August. Top photo: The AppLovin logo on a smartphone in New York. Photographer: Gabby Jones/Bloomberg. Was this article valuable? Interested in lawsuits? Get automatic alerts for this topic.

The Next Web
Oct 5th, 2026
San Diego sues AppLovin over explicit ads on kids' devices, Bloomberg reports.

San Diego sues AppLovin over explicit ads on kids' devices, Bloomberg reports. The county alleges the company collected sensitive data from children's devices, including where they live and study. A separate investor suit alleges it overstated how constantly its AI models improved. October 5, 2026 - 11:16 pm San Diego County has sued AppLovin, a mobile advertising technology company. The county alleges that AppLovin bypassed parental controls to serve ads for adult dating services, alcohol, vaping and graphic sexual content in games played by children. The complaint was filed with San Diego Superior Court on Monday, Bloomberg reported. According to the complaint, AppLovin collected sensitive data from children's devices even when parental controls and ad-tracking opt-outs were enabled. This included "information precise enough to pinpoint where kids live, where they study and whether they are sleeping". Apple and Google offer ways to block ad tech companies from tracking children's digital activity. The complaint says AppLovin bypassed these settings with fingerprinting. It used the technique to track children for ad targeting without parental consent, the complaint alleges. AppLovin "disregards child safety tools to harvest children's sensitive personal information" to "feed it into the company's artificial intelligence advertising engine", the complaint says. What the screenshots show. The suit alleges that AppLovin shows ads depicting sex acts, such as bondage, in apps marked appropriate for kids. One screenshot in the complaint shows an ad for a sexualised AI chatbot app in a physics-based puzzle game. The game was installed on an Android device configured for a six-year-old, with Google's parental controls enabled. Another screenshot shows ads for cannabis gummies on a device with the same controls. AppLovin did not immediately respond to Bloomberg's request for comment. "AppLovin does not knowingly collect personal information from children or serve Advertisements to children," its policies for ad buyers say. The policies, in force since 18 June, prohibit sexually explicit or other adult content, tobacco and nicotine, and illegal drugs. Alcohol ads need AppLovin's approval. Ads to children, and ads for products generally prohibited for under-18s, are barred. Advertisers are "solely responsible" for determining whether a user qualifies as a child, the policies say. Earlier fingerprinting claims. In 2025, short sellers Fuzzy Panda and Muddy Waters accused AppLovin of harvesting proprietary identifiers from other platforms in an unauthorised manner. They said it used them to track users across websites and apps. Chief executive Adam Foroughi wrote in a March 2025 blog post that the reports were "littered with inaccuracies". He denied creating "alternative accurate and persistent identifiers, typically called device fingerprints". The US Securities and Exchange Commission probed AppLovin's data collection, Bloomberg reported in October 2025, citing people familiar with the matter. The SEC was responding to a whistleblower complaint and the short-seller reports, they said. It had not accused AppLovin of wrongdoing. Chief financial officer Matt Stumpf said on an earnings call in August that the agency had closed its investigation without recommending enforcement action. A new county unit. The San Diego case is one of three filed on Monday by the county's new Consumer Fairness and Public Protection Unit. Local officials set it up in response to what they describe as dwindling federal enforcement of consumer protections. In July, a judge cleared several US states to try their claim that Meta hooked children on Facebook and Instagram. The unit is also suing Roblox, for inadequate protections to stop adults posing as children and contacting young users. Roblox already faces other lawsuits over child safety. In May, two advocacy groups asked the FTC to investigate it. The third suit targets 3D-printing materials firm Polymaker, for marketing certain materials to people assembling illegal, untraceable guns. The shareholder suit. AppLovin also faces a securities class action in the US District Court for the Northern District of California. Stephen Talbot filed it on 16 September. It names the company, Foroughi and Stumpf. The complaint covers investors who bought or acquired AppLovin securities between 12 February and 5 August 2026. AppLovin told investors it was "constantly improving" its AI models, the complaint says. "We don't really see a reason why that's going to slow down," the company told investors, according to the complaint. The suit alleges that the defendants overstated how constantly AppLovin was improving its AI models. It says they overstated the benefits of the "virtuous cycle" and "compounding" value proposition the models offered. It also alleges that the generative AI video creative feature for AppLovin Ads faced significant development delays. These made its release on AppLovin's timeline unlikely, the suit alleges. Two falls in the share price. On 13 July, a Bank of America Securities analyst note said that "AppLovin's eCommerce footprint expanded at a slower pace in June". Weekly data had "not shown a clear uptick" since AppLovin Ads opened to all e-commerce advertisers on 22 June, the note said. The shares fell $64.13, or 12.65%, from $506.80 to $442.85. After the market closed on 5 August, AppLovin reported quarterly revenue of $1.92bn, against consensus estimates of $1.94bn. It attributed the miss in part to delays in rolling out the video tool, according to the complaint. The shares fell $82.13 the next day, or 19.66%, from $417.80 to $335.67. "Our pace of meaningful model improvement was lighter than normal during the quarter," management said on 5 August, according to the complaint. Foroughi also said the video tool was "still [a] work in progress", the complaint says. AppLovin lost more than $44bn of its market capitalisation across the two falls, according to law firm Hagens Berman. The firm has opened an investigation into the claims. Investors have until 16 November to ask the court to appoint them to lead the case.

Bloomberg
Oct 5th, 2026
San Diego Sues AppLovin Over Explicit Ads Shown to Kids' Devices

San Diego Sues AppLovin Over Explicit Ads Shown to Kids' Devices October 5, 2026 at 9:56 PM GMT+2