Staff Machine Learning Engineer, Gen AI

8 Months ago • 6 Years + • Research Development

Job Summary

Job Description

Mozilla seeks a Staff Machine Learning Engineer to lead development of Generative AI solutions in Firefox. You'll build infrastructure for training and inference of LLMs, implement validation procedures, and collaborate with various teams. 6+ years of experience in building machine learning applications in production is required.
Must have:
  • Machine Learning Engineer
  • AI Applications Production
  • LLMs & Small Models
  • Distributed Systems
Good to have:
  • LLM Solutions
  • Open Source Project
  • Responsible AI
  • Browser Extensions
Perks:
  • Performance-Based Bonus
  • Generous Retirement

Job Details

Why Mozilla?

Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser, and Pocket, a service for keeping up with the best content online. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. 

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.

About this team and role:

The Firefox team is a community of engineers who care deeply about delivering the fastest, friendliest, most usable browser possible. We are responsible for making the things you see in the browser work securely, quickly, and well! We are looking for a Staff Machine Learning Engineer to help us develop and grow new Generative AI driven products and tools. You will play a key role in enabling safe and healthy machine learning and Generative AI driven experiences in Firefox. 

What is a Staff Engineer at Mozilla? 

A Staff Engineer is the next level from a Senior Engineer. At Mozilla this role can vary but typically a Staff Engineer is a domain expert who leads others within a single team to tackle multi-month projects. Tasks that may be initially ambiguous or require significant planning and require them to influence or direct the work of several engineers. They sequence deliverables and manage risks in their team's projects, provide feedback on our strategy and goals affecting the team, and turn our strategy into action for their team members. Staff Engineers mentor others by stewarding some responsibilities to more junior and senior engineers so they can take on new ones. They collaborate with management on building team consensus and providing direction. Staff Engineers identify gaps and opportunities for improvement to enable a culture of inclusion and allyship, at all levels of the organization.

What you’ll do:

  • Lead the design, development, and integration of Generative AI solutions in Firefox, collaborating cross functionally with product management, full stack engineering and design.
  • Build infrastructure for training and inference of LLMs and small language and vision models for use cases on the web and mobile Firefox product experiences.
  • Implement robust validation and testing procedures to ensure the developed models' generalizability and reliability
  • Continuously monitor and optimize deployed models for performance and efficiency

What you'll bring:

  • 6+ years experience as a Machine Learning engineer building tooling and services for machine learning applications in production.
  • Experience with designing and building machine learning tooling and infrastructure for training, deploying, inference and validation of models.
  • Experience with distributed systems and platforms for AI integrations across a breadth of applications such as LLM APIs, Cloud based and open source tooling.
  • Leading architecture designs to execution independently and track record of improving the team’s overall AI development velocity.
  • Strong problem-solving skills and ability to communicate complex concepts to technical and non-technical stakeholders.
  • Experience working collaboratively with product managers, project managers, and/or other non-engineering teams.
  • Effective documentation and communication skills on a distributed team.
  • Commitment to our values:
    • Welcoming differences
    • Being relationship-minded
    • Practicing responsible participation
    • Having grit

Bonus Points

  • Knowledge of and experience with using LLM solutions across different cloud providers
  • You have previously successfully contributed to an open source project.
  • Track record of not only building one, but multiple projects deployed with an active user base.
  • Experience with responsible AI, transparent algorithms, and putting users’ needs first.
  • Excellent communication skills, both in written and presentation form. You have the ability to quickly distill sophisticated topics into concepts that are tailored for your target audience.
  • You are a lifelong learner, and continue to refine and improve your skills when you see an opportunity to do so.
  • Experience with the browser extensions architecture or ecosystem.
  • Experience working in open source environments.

What you’ll get:

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-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 professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)

About Mozilla 

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging

Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission.  We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions.

We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation.

We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws.  Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.

Group: C

#LI-REMOTE

Req ID: R2593

Similar Jobs

Red Point Labs - Unity Game Developer (Remote OK)

Red Point Labs

Argentina (Remote)
1 Year ago
PayPal - Software Development Manager 2, Frontend

PayPal

Bengaluru, Karnataka, India (Hybrid)
3 Weeks ago
Google - Customer Growth Associate

Google

Dublin, County Dublin, Ireland (On-Site)
2 Months ago
P99 soft - Data Engineer

P99 soft

Hyderabad, Telangana, India (On-Site)
2 Months ago
world relief - Church & Volunteer Teams Mobilizer

world relief

Chicago, Illinois, United States (Hybrid)
1 Month ago
Game freak - R&D Programmer: System

Game freak

Chiyoda City, Tokyo, Japan (On-Site)
1 Month ago
bytedance - Research Scientist in Foundation Model, Speech Understanding - 2025 Start (PhD)

bytedance

San Jose, California, United States (On-Site)
8 Months ago
bytedance - Senior Research Scientist, Foundation Model, Speech Understanding

bytedance

San Jose, California, United States (On-Site)
8 Months ago
Apple - Machine Learning Engineer

Apple

Seattle, Washington, United States (On-Site)
4 Weeks ago
Microsoft - Member of Technical Staff, Machine Learning Engineer

Microsoft

Mountain View, California, United States (Hybrid)
2 Months ago

Get notifed when new similar jobs are uploaded

Similar Skill Jobs

luxsoft - Senior Java/Fullstack Developer

luxsoft

Kraków, Lesser Poland Voivodeship, Poland (On-Site)
2 Weeks ago
fourth stars - 3D Artist

fourth stars

Manchester, England, United Kingdom (On-Site)
3 Months ago
GlobalStep - Finance Director

GlobalStep

Pune, Maharashtra, India (On-Site)
1 Month ago
Crunchyroll - Principal Product Manager, Personalization & Search

Crunchyroll

Culver City, California, United States (On-Site)
5 Months ago
Actian - Product Sales Specialist - BigFix (IOS)

Actian

France (Remote)
1 Week ago
Wargaming - Tech/Render QA Engineer

Wargaming

Belgrade, Serbia (Hybrid)
2 Weeks ago
bytedance - Student Researcher (Doubao (Seed) - LLM Foundation Research)

bytedance

San Jose, California, United States (Hybrid)
2 Months ago
LTI Mindtree - Associate Principal - Architecture

LTI Mindtree

São Paulo, State Of São Paulo, Brazil (On-Site)
3 Weeks ago
Aptive - Financial Accountant

Aptive

Dublin, County Dublin, Ireland (On-Site)
1 Month ago
WebFX - Technical Digital Marketer (MARTECH Implementation) (Cape Town)

WebFX

Cape Town, Western Cape, South Africa (On-Site)
6 Months ago

Get notifed when new similar jobs are uploaded

Jobs in Sweden

luxsoft - Senior Android HMI/Kotlin Developer

luxsoft

Sweden (Remote)
2 Weeks ago
Raw Fury - Publishing Producer Lead

Raw Fury

Stockholm, Stockholm County, Sweden (Hybrid)
3 Months ago
Barracuda - Solutions Architect (Pre-Sales)

Barracuda

Sweden (On-Site)
2 Weeks ago
house of how - Lead Game Engineer - Sweden

house of how

Boden, Norrbotten County, Sweden (On-Site)
7 Months ago
Snow born games - Game Mathematician

Snow born games

Stockholm, Stockholm County, Sweden (Hybrid)
1 Month ago
AFRY - Piping and Plant Designer, Process Industries

AFRY

Örnsköldsvik, Västernorrland County, Sweden (On-Site)
1 Week ago
10 Chambers - Senior Gameplay Programmer

10 Chambers

Stockholm, Stockholm County, Sweden (On-Site)
1 Week ago
Avalanche Studios Group - UX Designer

Avalanche Studios Group

Malmö, Skåne County, Sweden (Hybrid)
2 Months ago
ELk studios - 2D Game Artist

ELk studios

Stockholm, Stockholm County, Sweden (On-Site)
3 Weeks ago
Avalanche Studios Group - Senior Rendering Programmer

Avalanche Studios Group

Malmö, Skåne County, Sweden (Hybrid)
1 Month ago

Get notifed when new similar jobs are uploaded

Research Development Jobs

Nahc.io - Sales Manager (AI Search Solution)

Nahc.io

Singapore (Remote)
3 Weeks ago
Agara labs - Lead / Staff ML Scientist - NLP

Agara labs

Bengaluru, Karnataka, India (Remote)
2 Months ago
Glean - Software Engineer, Machine Learning (India)

Glean

Bengaluru, Karnataka, India (On-Site)
8 Months ago
Sony Interactive Entertainment - Learning and Development Specialist (AI Talent Development & Training Program Lead)

Sony Interactive Entertainment

Tokyo, Japan (On-Site)
2 Months ago
Scale AI - Strategic Projects Lead, Generative AI - International

Scale AI

Mumbai, Maharashtra, India (Remote)
2 Months ago
LeoVegas - Senior Market Researcher

LeoVegas

Newcastle Upon Tyne, England, United Kingdom (On-Site)
6 Days ago
Apple - User Land Security Researcher

Apple

Cupertino, California, United States (On-Site)
1 Month ago
Lionbridge Games - User Researcher

Lionbridge Games

Quebec, Canada (On-Site)
2 Months ago
BioFire - Senior Medical Microbiology Scientist

BioFire

Hazelwood, Missouri, United States (On-Site)
1 Month ago
bytedance - Research Scientist, Applied GAI-Vision

bytedance

San Jose, California, United States (On-Site)
8 Months ago

Get notifed when new similar jobs are uploaded