Location
London

Hours
Full Time

Salary
Negotiable

About the Role
Meta is seeking principal engineers to join our teams in building cutting-edge products that connect billions of people around the world. As a member of our team, you will oversee complex technical problems, build new features, and improve existing products across various platforms, including mobile devices and web applications. Our teams continuously improve the user experience, and we're looking for passionate individuals who can help us advance the way people connect globally. If you're interested in leading a team of engineers and researchers to work on exciting projects that have significant impact, we encourage you to apply.

In this role, you will drive the team's goals and technical direction to pursue opportunities that make your larger organization more efficient. You will effectively communicate complex features and systems in detail, understand industry and company-wide trends to help assess and develop new technologies, and partner with organization leaders to improve engineering quality and delivery outcomes across the team and organization.

You will identify new opportunities for the larger organization and influence the appropriate people for staffing and prioritizing these ideas. Leading the long-term technical vision and roadmap for large cross-company efforts, you will suggest, collect, and synthesize requirements to create an effective feature roadmap. Additionally, you will identify and resolve performance and scalability issues and drive large efforts to reduce technical debt.

Experience
- 12+ years of programming experience in a relevant language OR 8+ years with a PhD
- Experience driving large cross-functional and industry-wide engineering efforts
- Proven track record of planning multi-year roadmaps aligning short-term projects with long-term missions
- Experience communicating and working across functions to drive solutions
- Shipped at least one large-scale product to production supporting millions of active users
- Experience building Android applications in Java using Android SDK
- Experience with multithreading programming and mobile memory management
- Experience building maintainable and testable code bases, including API design and unit testing techniques
- Experience utilizing data and analysis to explain technical problems and provide detailed feedback and solutions
- Demonstrated ongoing AI skill development (e.g., prompt/context engineering, agent orchestration) and staying current with emerging AI technologies
- Demonstrated ability to integrate AI tools to optimize/redesign workflows and drive measurable impact (e.g., efficiency gains, quality improvements)
- Experience adhering to and implementing responsible, ethical AI practices (e.g., risk assessment, bias mitigation, quality and accuracy reviews)

About You
You are a passionate technical leader with strong communication skills and the ability to influence executive stakeholders through technical strategy proposals and cross-organizational roadmap alignment. You thrive in collaborative environments and are motivated by solving complex technical challenges that impact billions of users globally.

Qualifications
Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience.