S

Susquehanna International Group

Global quantitative trading, liquidity provision, research

Machine Learning Engineer-Inference Optimization

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeBala Cynwyd, PA, USANo salary listedIn-person

About the Job

Requirements

  • Experience deploying, optimizing, or operating machine learning inference workloads in production or production-like environments.
  • Programming experience in Python, Java, C#, or another programming language, plus at least one systems language such as C, C++, Rust, or Go.
  • A solid understanding of modern machine learning frameworks such as PyTorch, including model execution, export, tracing, compilation, and performance profiling.
  • Ability to reason about latency, throughput, batching, memory use, GPU utilization, and reliability under real workloads.
  • Practical judgment around tradeoffs between model quality, latency, throughput, implementation complexity, and maintainability.

Responsibilities

  • Design, build, and optimize low-latency inference systems for production machine learning workloads.
  • Profile model inference pipelines across model execution, runtime configuration, batching, memory movement, serialization, networking, and input/output.
  • Evaluate, integrate, and tune inference runtime systems.
  • Improve latency, throughput, and GPU utilization for production inference workloads.
  • Build and support benchmarking and profiling tools to compare model variants, hardware targets, runtime configurations, and deployment strategies.
  • Debug performance issues involving GPU memory, compute saturation, kernel behavior, CPU/GPU coordination, data movement, and serving-layer overhead.
  • Help shape model and system design choices so research models are efficient to deploy under real latency constraints.
  • Collaborate with lower-level systems or GPU specialists on custom operators, kernel-level optimization, or hardware-specific performance work where necessary.

Desired Qualifications

  • Experience optimizing inference for latency-sensitive or high-throughput applications.
  • Experience with model optimization techniques such as quantization, pruning, distillation, operator fusion, graph lowering, custom operators, or model compilation.
  • Exposure to CUDA, Triton language, ROCm, PTX, CuTe, CUTLASS, FlashInfer, or similar low-level GPU programming tools.
  • Experience running inference workloads on Kubernetes or GPU clusters, including scheduling, autoscaling, observability, and resource management.
  • A background in mathematics, physics, computer science, engineering, statistics, quantitative finance, or another technical field.
  • Demonstrated ability to improve real-world inference performance beyond a baseline framework implementation.

About the Company

Susquehanna International Group

Global quantitative trading, liquidity provision, research

Susquehanna International Group (SIG) is a global quantitative trading firm that provides liquidity in equities, fixed income, commodities, and derivatives for institutional clients. Its core approach combines cutting-edge technology with quantitative research to build algorithms and models that identify trading opportunities and manage risk, enabling efficient, profitable trading. SIG differentiates itself through its deep emphasis on data-driven decision making, advanced technology, broad asset class coverage, and a strong global presence with offices in North America and regulated international locations. The company aims to generate trading profits by executing well-priced trades while supporting the careers of professionals in trading, technology, and quantitative research, all within a privacy-conscious framework.

Company size
1,001-5,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Lower Merion Township, Pennsylvania
Founded
1987

Recently Posted Jobs

Explore more opportunities at Susquehanna International Group

See more jobs