Compiler Engineer, Graph Compiler Performance Optimization

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

Job summary

Meta seeks a Compiler Engineer focused on Graph Compiler Performance Optimization within the MTIA Software team. You will shape graph-level compiler passes for PyTorch Inductor/FX IR, profiling models to remove bottlenecks, and extending fusion and memory optimizations across MTIA hardware generations.

You will collaborate with AI researchers and hardware teams, ensuring scalable, portable compiler strategies and rapid silicon bring-up. Strong C/C++ and Python skills required.

Qualifications

• Experience with C/C++ and Python programming.
• Experience in compiler development and optimizing ML models on hardware.
• Understanding of graph execution and how compiler transforms affect performance.
• Bachelor's degree in CS/CE or equivalent practical experience.

Responsibilities

• Design, implement, and validate graph-level compiler optimization passes targeting performance within the PyTorch Inductor / FX IR compilation pipeline for MTIA.
• Profile and analyze deep learning models to identify graph-level performance bottlenecks and develop compiler solutions.
• Develop and extend automatic fusion strategies to unlock peak hardware utilization across MTIA chip generations.
• Implement memory optimizations to reduce latency and improve bandwidth utilization.
• Build and improve performance analysis tooling to accelerate optimization iteration cycles.
• Collaborate with hardware design teams on hardware-software co-design for new silicon capabilities.
• Ensure compiler optimizations are portable and scalable across MTIA chip generations.

Skills

C/C++

Python

Compiler development

DL models

Education

Bachelor's in CS/CE

Tools

PyTorch internals

Job description

In this role, you will be a member of the MTIA (Meta Training & Inference Accelerator) Software team and part of the bigger AI and Compute Foundations team. The Graph Compiler team drives the development of the top-of-stack compilation pipeline for MTIA — taking PyTorch models, tracing the model graph, lowering and optimizing through FX/Inductor, and mapping to high-performance kernels. Your specific focus will be on performance optimization within the graph compiler: designing and implementing compiler passes that maximize throughput and minimize latency for AI workloads on MTIA hardware.You will work closely with AI researchers to understand emerging model architectures and translate performance requirements into compiler optimization strategies. You will partner with hardware design teams to drive hardware-software co-design, ensuring the compiler exploits new silicon capabilities from day one. You will also collaborate with the Triton/DSL and LLVM compiler teams to deliver cross-stack performance improvements.

Compiler Engineer, Graph Compiler Performance Optimization Responsibilities:

• Design, implement, and validate graph-level compiler optimization passes targeting performance within the PyTorch Inductor / FX IR compilation pipeline for MTIA
• Profile and analyze deep learning models to identify graph-level performance bottlenecks such as suboptimal fusion boundaries, excessive memory traffic, and scheduling inefficiencies — then develop compiler solutions to address them
• Develop and extend automatic fusion strategies to unlock peak hardware utilization across MTIA chip generations
• Implement memory optimizations including data placement strategies, memory footprint reduction, and data movement elimination to reduce latency and improve bandwidth utilization
• Build and improve performance analysis tooling to accelerate optimization iteration cycles
• Collaborate with hardware design teams on hardware-software co-design: informing hardware features from compiler needs and rapidly developing compiler support for new chip capabilities
• Ensure compiler optimizations are portable and scalable across MTIA chip generations, enabling rapid software bring-up for new silicon
• Partner with AI researchers to co-design model architectures and compiler optimizations, ensuring models run performantly on MTIA out of the box

Minimum Qualifications:

• Experience with C/C++ and Python programming
• Experience in compiler development, performance optimization, or accelerating deep learning models on hardware architectures
• Understanding of deep learning model execution (graphs, operators, data flow) and how compiler transformations affect end-to-end performance
• Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience

Preferred Qualifications:

• A Bachelor's degree in Computer Science, Computer Engineering, relevant technical field and 7+ years of experience in compiler development or accelerating deep learning models on hardware architectures OR a Master's degree and 4+ years OR a PhD and 3+ years of relevant experience
• Experience with graph-level compiler optimizations such as operator fusion, graph scheduling, memory allocation optimization, dead code elimination, or constant folding in ML compiler stacks
• Experience with PyTorch internals, PyTorch 2.0 compilation stack (TorchDynamo, FX IR, Inductor), or similar ML compilation frameworks (XLA, TVM, MLIR, Glow)
• Experience with performance profiling and analysis: identifying compute/memory/I/O bottlenecks, understanding roofline models, and developing systematic approaches to performance tuning
• Experience with traditional compiler optimizations (loop transformations, vectorization, parallelization, instruction scheduling) and how they apply to ML workloads
• Experience with AI hardware accelerator architectures (GPUs, TPUs, or custom ASICs) and understanding of how hardware constraints inform graph-level optimization decisions
• Experience working with deep learning frameworks (PyTorch, TensorFlow, JAX) and understanding their compilation and execution models
• Experience adhering to and implementing responsible, ethical AI practices (e.g., risk assessment, bias mitigation, quality and accuracy reviews)
• 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)

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 [e-mail].

$183,997/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.