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Senior Machine Learning Engineer, Applied AI Modeling - Mozilla - Remote - Global

Machine Learning Engineer

Posted: June 25, 2026
Posted 13 days ago
Last seen in crawl: July 7, 2026 (2d ago)
Estimated Expiry: July 30, 2026
Remoteness
Role & Management
Role Level:Mid-Level
Job Type
Experience
4 years
Required Languages

Job Description

Mozilla is hiring a Senior Machine Learning Engineer, Applied AI Modeling in Remote US, Core Services, Firefox, New Products, Firefox, Firefox, Core Services, Mozilla.org. The role involves developing and fine-tuning large language models (LLMs) for browser interactions, applying retrieval-augmented generation, summarization, classification, and intent modeling techniques, and collaborating with product and engineering teams to deploy AI features. Candidates should have 4+ years of experience in applied machine learning, especially NLP or generative AI, with hands-on experience in fine-tuning LLMs and using modern ML tools. The role emphasizes privacy, latency, and usability in user-facing AI features. The position offers competitive salary ranges, benefits, and a remote work environment.

Company Information

Mozilla logo
Technology
Current open roles at Mozilla on JobCrawls
LocationActive listings
Remote Finland46
Remote Germany44
Remote Netherlands43
Remote UK42
Remote Belgium41
Remote France41
Remote Spain40
Remote Sweden38
Remote Poland35
Remote Canada32
Remote US19
Remote - Global15
Remote - Netherlands6
Remote - Sweden6
Remote - France6
Remote - Poland6
Remote Denmark6
Remote - Finland6
Remote - Spain6
Remote - Belgium6
Remote - Germany6
Remote - UK5
Remote - Canada5
Remote New Zealand5
Remote Australia5
Remote - US2
Current role mix at Mozilla on JobCrawls
Role typeActive listings
Software Engineer51
Localization Technical Program Manager2
Product Manager2
Product Director1
Data Scientist1
Grassroots Engagement Director1
Quantitative User Researcher1
Fundraising Strategist1
Senior Software Engineer1
Social Media & Content Strategist1
Engineer1
Application Engineer1
Security Engineer1
Machine Learning Engineer1
Head of Global and Strategic Intelligence1
Current role-level mix at Mozilla on JobCrawls
Role levelActive listings
Mid-Level17
Senior10
Mid-level1

Mozilla appears in 512 indexed job postings in JobCrawls' Finland dataset since October 2023. In that historical index, the strongest location signals for this employer are Remote Finland, Remote Germany, and Remote Netherlands.

Data shown is based on historical job postings from our database.

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