Software Engineer - Traffic Efficiency

Meta; Menlo Park (CA); On-site; USD 184,000 - 257,000; Full time

Benefits offered by this job

Bonus

Equity

Benefits

Job summary

Meta's Traffic Efficiency team enhances edge infrastructure performance, capacity, and reliability to connect people to Meta's products. The role leads cross-stack performance work spanning high-throughput services, OS kernels, networking, and server platforms, guiding safe fleet-wide deployment with measurable latency, throughput, and cost benefits.

We seek an engineering expert with 7+ years of software development, or a PhD with 4+ years, to set direction, diagnose across layers, and deliver

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or equivalent practical experience.
• 7+ years of software-development experience, or a PhD with 4+ years of relevant experience.
• Track record leading ambiguous, multi-team work from problem framing through large-scale production deployment, with measurable results.
• Deep expertise in at least one area, plus significant hands-on experience in another: high-throughput services, operating systems or kernels, networking or NICs, CPU and memory, or server platforms.

Responsibilities

• Set technical direction and lead multi-team programs that improve performance, capacity, efficiency, or reliability.
• Diagnose interactions across services, OS, network I/O, NICs, CPU/memory, and server platforms using profiling, tracing, telemetry, counters, and experiments.
• Prioritize high-leverage opportunities and implement at the right layer, contributing hands-on across layers.

Skills

C/C++

Scripting language

Performance tools

Cross-stack analysis

Education

Bachelor's degree in Computer Science or Computer Engineering

PhD with 4+ years experience

Tools

Profiling tools

Tracing

Telemetry

Job description

Meta's Traffic Efficiency team improves the performance, capacity, and reliability of the edge infrastructure connecting people to Meta's products. Edge sites face tight space, power, and hardware constraints, so efficiency directly creates usable capacity and reliability. At Meta's scale, even small efficiency gains can deliver substantial infrastructure savings while protecting product quality as demand grows.We seek an engineering expert to set direction and lead cross-stack performance work spanning high-throughput services, operating systems and kernels, networking and NICs, CPU and memory, and server platforms. The task is to identify high-leverage opportunities, choose the right layer for each solution, and drive safe fleet-wide deployment with measurable impact on latency, throughput, resource efficiency, capacity, reliability, or total cost of ownership.Software Engineer - Traffic Efficiency Responsibilities:Set technical direction and lead multi-team programs that improve performance, capacity, efficiency, or reliabilityDiagnose interactions across services, operating systems, network I/O, NICs, CPU and memory, and server platforms using profiling, tracing, telemetry, counters, and controlled experimentsPrioritize the highest-leverage opportunities and implement at the right layer, contributing hands-on across layers and partnering where specialized ownership is requiredBuild representative benchmarks and ship changes with monitoring, validation, staged rollout, rollback, and clear ownershipQuantify impact and design trade-offs to influence teams outside the engineer's direct ownershipTurn regressions and incidents into systemic prevention, reusable methods, and stronger team capabilityMinimum Qualifications:Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience7+ years of software-development experience, or a PhD with 4+ years of relevant experienceTrack record leading ambiguous, multi-team work from problem framing through large-scale production deployment, with measurable resultsDeep expertise in at least one area, plus significant hands-on experience in another: high-throughput services, operating systems or kernels, networking or NICs, CPU and memory, or server platformsExperience repeatedly diagnosing and improving systems across two or more of those layersProficiency in C or C++, a scripting language, and production performance tools such as profiling, tracing, telemetry, resource attribution, or hardware countersAbility to communicate impact and trade-offs and influence teams outside direct ownershipPreferred Qualifications:Ideal candidates combine several of thesemastery of all is not expectedLinux internals, kernel networking, drivers, scheduling, packet processing, programmable networking, or NIC offloadsProduction-representative benchmarking, server or NIC evaluation, large-scale rollout, systems project contributions, or systemic prevention of incidentsCPU, cache, memory locality, NUMA, PCIe, power, thermal, or server platform performanceC++ systems optimization involving asynchronous I/O, concurrency, memory allocation, caching, transport, or overload handlingHigh-throughput services such as CDNs, proxies, load balancers, caches, gateways, or request-processing systemsAbout 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 [e-mail].$183,997/year to $257,000/year + bonus + equity + benefitsIndividual 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.