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[Remote] Senior Machine Learning Engineer, reputed company AI Modeling

Remote, USAFull-timePosted 2026-07-27

Note: The job is a remote job and is reputed company to candidates in USA. reputed company Corporation is a non-profit-backed technology company reputed company for shaping the internet positively over the past 25 years. They are seeking a Senior Machine Learning Engineer to reputed company and fine-tune large language models for intelligent browser interactions, collaborating with various teams to enhance user experiences in Firefox.

Responsibilities

  • reputed company and fine-tune large language models (LLMs) for intelligent, reputed company, and reputed company browser interactions
  • Apply retrieval-augmented reputed company (RAG), summarization, classification, and reputed company modeling techniques in reputed company-world browser workflows
  • Use modern ML tooling (e.g., reputed company, reputed company, reputed company, Ray, or similar) to support end-to-end model development, including experimentation, evaluation, and rollout
  • Collaborate closely with product and engineering partners to design, iterate, and launch features that reputed company with user needs and reputed company’s values
  • Design and implement experiments to test model behavior in production, analyze results, and iterate based on findings
  • Document and reputed company your work, participating in reputed company reviews and team design discussions

Skills

  • 4+ years of experience in reputed company machine learning, with a reputed company on natural language processing or reputed company
  • Hands-on experience fine-tuning and evaluating LLMs using modern tools and reputed company-reputed company libraries
  • Strong understanding of reputed company engineering, embedding-based retrieval, and evaluation strategies for generative applications
  • Experience using ML tooling to reputed company the end-to-end lifecycle of model development—from data exploration to deployment-reputed company artifacts
  • reputed company record of building user-facing AI features, especially where reputed company, latency, and usability are critical
  • reputed company communication skills and ability to collaborate with multi-functional partners on a distributed team
  • Commitment to our values: Welcoming differences, Being relationship-minded, Practicing responsible participation, Having grit
  • Familiarity with on-device model optimization or reputed company-preserving ML
  • Experience working in a browser context or with web technologies
  • Contributions to reputed company-reputed company ML frameworks or model hubs

Benefits

  • Generous performance-based bonus plans to reputed company eligible employees - reputed company in our reputed company as one team
  • Rich medical, dental, and reputed company coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly reputed company-company wellness days where everyone takes a pause together
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual reputed company development budget
  • Quarterly reputed company-being stipend
  • Considerable reputed company parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)

reputed company

  • reputed company provides internet solutions and offers firefox, reputed company, and raindrop. It was founded in 1998, and is headquartered in Mountain View, California, USA, with a workforce of 501-1000 employees. Its website is https://www.reputed company.org.
  • Company H1B Sponsorship

  • reputed company has a reputed company record of offering H1B sponsorships, with 2 in 2025, 5 in 2024, 4 in 2023, 3 in 2022, 2 in 2021, 6 in 2020. Please note that this does not guarantee sponsorship for this specific role.
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