fal
fal is the generative media ecosystem powering the next generation of AI products. We build the infrastructure, tools, and model access that teams need to move from idea to production, and do it at scale without compromise. For developers and enterprises, fal is the foundation that makes generative media not just possible, but practical: a unified platform where high-performance inference, orchestration, and observability come together to unlock new categories of AI-native products.
As generative media reshapes industries across a market projected to grow by hundreds of billions over the next decade, fal is becoming the ecosystem that ambitious teams build on.
Why this role matters
You’ll shape the future of fal’s inference engine and ensure our generative models achieve best-in-class performance. Your work directly impacts our ability to rapidly deliver cutting-edge creative solutions to users, from individual creators to global brands.
What you’ll do
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Day-to-day
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What success looks like
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Set technical direction. Guide your team (kernels, applied performance, ML compilers, distributed inference) to build high-performance inference solutions.
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fal’s inference engine consistently outperforms industry benchmarks in throughput, latency, and efficiency.
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Hands-on IC leadership. Personally contribute to critical inference performance enhancements and optimizations.
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You regularly ship code that significantly improves model serving performance.
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Collaborate closely with research & applied ML teams. Influence model inference strategies and deployment techniques.
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Seamless integration of inference innovations rapidly moves from research to production deployment.
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Drive advanced performance optimizations. Implement model parallelism, kernel optimization, and compiler strategies.
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Performance bottlenecks are quickly identified and eliminated, dramatically enhancing inference speed and scalability.
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Mentor and scale your team. Coach and expand your team of performance-focused engineers.
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Your team independently innovates, proactively solves complex performance challenges, and consistently levels up their skills.
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You might be a fit if you
- Are deeply experienced in ML performance optimization. You’ve optimized inference for large-scale generative models in production environments.
- Understand the full ML performance stack. From PyTorch, TensorRT, TransformerEngine, Triton to CUTLASS kernels, you’ve navigated and optimized them all.
- Know inference inside-out. Expert-level familiarity with advanced inference techniques: quantization, kernel authoring, compilation, model parallelism (TP, context/sequence parallel, expert parallel), distributed serving and profiling.
- Lead from the front. You’re a respected IC who enjoys getting hands-on with the toughest problems, demonstrating excellence to inspire your team.
- Thrive in cross-functional collaboration. Comfortable interfacing closely with applied ML teams, researchers, and stakeholders.
Nice-to-haves
- Experience building inference engines specifically for diffusion and generative media models
- Track record of industry-leading performance improvements (papers, open-source contributions, benchmarks)
- Leadership experience in scaling technical teams
What you’ll get
One of the highest impact roles at one of the fastest growing companies (revenue is growing 40% MoM, we are 60x+ RR compared to last year, raised Series A/B/C within the last 12 months) with a world changing vision: hyperscaling human creativity.
Sound like your calling? Share your proudest optimization breakthrough, open-source contribution, or performance milestone with us. Let’s set new standards for inference performance, together.
To apply for this job please visit job-boards.greenhouse.io.
Explore fal online
Working in San Francisco
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 200,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2024. Some 4.6 million residents live in the city's metropolitan statistical area, which is the 13th-largest in the United States. Around 9.2 million live in the San Jose–San Francisco–Oakland combined statistical area, the fift
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