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Role description

MACHINE LEARNING ENGINEER (Contextual)

AnchorFree logoAnchorFree
AI-native
TypeFull-time
WorkplaceOn-site
SeniorityMid-level
LocationMountain View, CA
Posted9/14/2026
Engineering

Background
AnchorFree is a fast growing technology company in Silicon Valley that makes a significant impact on people’s lives around the globe by enabling free access to all information and content online and enabling millions of users to browse the web securely and privately. In regions that censor the web, millions of users utilize AnchorFree to get uncensored access to the Internet. Travelers, Expats, and security conscious consumers use AnchorFree to securely surf the web in more than 100 countries. Funded by blue chip investors, AnchorFree is growing more than 200% per year, democratizing the Internet and putting users in control of their identity and data online. The service is free for users and is ad supported, with an option to upgrade to a paid ad-free version. More than 2 billion page views per month are viewed through AnchorFree’s service by more than 9 million monthly users. AnchorFree’s Hotspot Shield has been downloaded more than 25 million times.

Position
Are you interested in developing algorithms that increase relevancy of the content offered to the free users while respecting their privacy and anonymity? Would you like to impact millions of users world-wide? If you're an engineer who is passionate about data, quality, results, and innovation; if you have experience applying information retrieval, natural language processing, or machine learning techniques to solve practical business problems; if you are a creative problem-solver; if you build prototypes for breakfast, then we want to hear from you!

Job Responsibilities

  • Develop and optimize new ways to present additional content to VPN users while they are browsing the Web
  • Develop and optimize real-time content analysis tools to increase relevancy of offered content
  • Apply state of the art machine learning algorithms to improve user experience and business results
  • Use front-end and back-end technologies such as advanced Javascript, NGinx, high-performance databases to rapidly prototype and deploy your solutions.

Job Qualifications

  • Practical knowledge and understanding of the state of the art data-mining and machine-learning techniques.
  • Solid experience with advanced Javascript (experience limited to jquery is not enough), HTML, CSS.
  • Extensive experience programming on Unix Platforms.
  • Good knowledge of the LAMP stack
  • Experience with cross-platform, cross-browser development
  • Experience working in startups and small team environments
  • A track record of delivering quality bug-free code on schedule
  • Excellent communication skills - both written and spoken
  • Masters degree in computer science (machine learning) with 3+ years of relevant industry experience

Preferable Job Qualifications

  • Industry experience, especially in a consumer internet or online advertising related setting.
  • Experience with natural language processing, contextual analysis, keyword extraction, summarization
  • Experience with OSS learning packages like Mahout, scipy, weka, etc.
  • Knowledge of Perl, Python or other scripting languages
  • Experience with searching and indexing

Compensation And Benefits

  • Very competitive salary
  • Excellent employee stock option plan
  • Relocation assistance available
  • Free food and drinks
  • Foosball, Small gym and showers, Pool table, Table Tennis
  • FREE Medical, Dental and Vision
  • 401k
  • Easy Access to Caltrain and Light Rail (free pass)
  • Employee discounts on HP, Apple and Verizon

Relevant archetypes

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Company info

AnchorFree logo

AnchorFree

AnchorFree’s mission is to provide secure and private access to the world’s information for every person on the planet. AnchorFree’s Hotspot Shield app is the world’s most popular freedom and privacy platform, with over 650 million downloads in 200 countries. AnchorFree has been named among America’s Most Promising Companies by Forbes in 2013 and 2014, and in 2019, Fast Company named AnchorFree the "Most Innovative Security Company"​ in the world. The company's founders have been profiled by Inc., Fortune, Forbes, Entrepreneur, and other major publications and have won numerous awards for leadership, entrepreneurship, and innovation. AnchorFree is a privately funded company with investment from WndrCo. The company is focused on bringing online privacy and freedom to the next billion internet users. *Hotspot Shield's user base grew by over 100 million downloads in the past 12 months *400,000 people download an AnchorFree app every day *AnchorFree is one of the only companies in the

HQRedwood City, US
Size46 employees
Unlock human wisdom
ThesisTermsPrivacy
Industry
Technology, Information and Internet
Tech stacklocalize-js, apache-mahout, weka, scipy, ios, prescreen, junit, perl, java, xcode

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