Software Engineering Manager, Javascript Platform - Programming Languages and Runtimes (PL&R)

Meta's Javascript Platform team owns the core JavaScript type checking and execution infrastructure that powers the majority of Meta's web and mobile applications. The Flow team develops and maintains Meta's static type checker for JavaScript, enabling safe, efficient development for thousands of engineers across Facebook, Instagram, Threads, and VR/AR products. The Hermes team builds Meta's JavaScript engine, optimized for React Native, delivering performance improvements and enabling new capabilities on mobile and emerging platforms.As a manager, you will lead teams of experienced engineers specializing in programming languages, compilers, and runtime systems. You will drive technical innovation in type systems and JavaScript execution, collaborate closely with product teams and open source communities, and deliver high-impact improvements to developer productivity and application performance across Meta's ecosystem.

Software Engineering Manager, Javascript Platform - Programming Languages and Runtimes (PL&R) Responsibilities:

• Grow and mentor a team of programming language, compiler and runtime domain experts, supporting career growth and matching project opportunities
• Establish effective partnerships with peer engineering teams, product groups, and open source communities to deliver integrated solutions and drive high-impact, cross-team initiatives
• Set the strategic direction for the team, guiding the evolution of Meta's JavaScript platform to meet current and future product needs
• Stay closely engaged with ongoing software development, providing technical guidance, resolving challenges, and participating in key design and architectural decisions
• Promote a work environment with a focus on craftsmanship, continuous improvement, and innovation, ensuring the teams deliver robust, scalable, and high-performance solutions for Meta's products

Minimum Qualifications:

• Bachelor of Science/Masters in Computer Science or equivalent practical experience
• 8+ years (or 4+ years with PhD) of software engineering work experience, including hands on technical management
• Demonstrated experience recruiting, building, structuring, and leading technical organizations, including performance management
• Experience supporting, coaching, mentoring, and developing software engineers
• 2+ years of experience in managing a team of engineers with varied skill levels

Preferred Qualifications:

• Master's degree or PhD in Computer Science, or a related field, or equivalent practical experience in compiler construction or programming language theory
• 5+ years of experience in systems programming using C++ or Rust, involving memory management, concurrency, and low-level optimization
• Experience with compiler architecture and development (e.g., domain-specific, static/dynamic language design, runtime optimization, and developer experience)
• Demonstrated experience of working on virtual machine architecture (e.g., JS engines like V8, SpiderMonkey, or Hermes)
• Extensive experience with the JavaScript ecosystem, including bundlers (Metro, Webpack)
• Familiarity with open source community engagement and contributions

About Meta:

Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and WhatsApp further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology. People who choose to build their careers by building with us at Meta help shape a future that will take us beyond what digital connection makes possible today-beyond the constraints of screens, the limits of distance, and even the rules of physics.

Meta is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Meta participates in the E-Verify program in certain locations, as required by law. Please note that Meta may leverage artificial intelligence and machine learning technologies in connection with applications for employment.

Meta is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance or accommodations due to a disability, please let us know at accommodations-ext@fb.com.

$184,000/year to $257,000/year + bonus + equity + benefits

Individual compensation is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base hourly rate, monthly rate, or annual salary only, and do not include bonus, equity or sales incentives, if applicable. In addition to base compensation, Meta offers benefits. Learn more about benefits at Meta.

Client-provided location(s): Menlo Park, CA

Job ID: a1KDp00000CZJxwMAH

Employment Type: OTHER

Posted: 2025-12-19T19:54:23