Two Sigma Investments, LLC

GPU Performance Engineer

Two Sigma Investments, LLC$165K — $300K *
Enterprise Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • BS or MS in Science, Technology, Engineering or Math
  • 1-10 years of experience in GPU programming
  • Expert-level CUDA programming skills
  • Deep understanding of GPU architecture
  • Experience with performance profiling of GPU workloads
  • Strong C++ and Python skills
  • Proven history of achieving significant performance improvements on real-world applications

Responsibilities

  • Design and implement GPU-accelerated computational kernels
  • Optimize GPU code for performance metrics including throughput and latency
  • Develop precision management procedures for financial applications
  • Profile and optimize GPU workloads using NVIDIA tools
  • Create reusable GPU libraries for modeling teams
  • Evaluate and integrate GPU-accelerated libraries for specific financial use cases

Benefits

  • Fully paid medical and dental insurance for employees and dependents
  • Competitive 401k match and employer-paid life and disability insurance
  • Onsite gym access with laundry service and wellness activities
  • Tuition reimbursement and sponsorship for conferences and training
  • Generous vacation policy, unlimited sick days, and paid caregiver leave
  • Flexible hybrid work policy with a budget for home office setup
Full Job Description
Position Summary

Two Sigma is building a new team to drive the firm's strategic transition from CPU-centric to GPU-accelerated computation. Accelerated Compute sits within AI Innovation and operates at the intersection of quantitative modeling workflows, GPU performance engineering, and infrastructure strategy.

You are a GPU programming expert. You write CUDA, you optimize kernels, you understand the memory hierarchy, you know why naive GPU code is slow and how to make it fast. You will ensure that when workloads move to GPU, they achieve the performance that justifies the transition.

You will take on the following responsibilities:

  • Design and implement GPU-accelerated kernels for financial computation workloads
  • Optimize GPU code for throughput, latency, and memory efficiency across current and next-generation hardware (Blackwell, Rubin)
  • Develop procedures for precision management (FP8/FP4 training and inference) in financial applications
  • Profile and optimize GPU workloads using NVIDIA tooling (Nsight Systems, Nsight Compute)
  • Build reusable GPU libraries and abstractions that modeling teams can use without requiring deep CUDA expertise
  • Evaluate and integrate GPU-accelerated libraries (RAPIDS, CUTLASS, cuBLAS, TensorRT) for financial use cases


You should possess the following qualifications:

  • BS or MS in Science, Technology, Engineering or Math
  • Minimum 1 year of experience required; 4-10 years of experience preferred
  • Expert-level CUDA programming: kernel development, memory management, stream and graph optimization
  • Deep understanding of GPU architecture: SM structure, warp scheduling, memory hierarchy (registers, shared memory, L1/L2, HBM)
  • Experience with performance profiling and optimization of GPU workloads
  • Strong C++ and Python skills, as well as familiarity with mixed-precision computation and numerical stability
  • Track record of delivering meaningful speedups on real workloads (not just benchmarks)


Preferred experience:

  • Background in HPC, scientific computing, or computational finance
  • Experience with multi-GPU and multi-node GPU programming (NCCL, MPI)
  • Familiarity with GPU-accelerated data processing frameworks (RAPIDS, cuDF)


You will enjoy the following benefits:
  • Core Benefits: Fully paid medical and dental insurance premiums for employees and dependents, competitive 401k match, employer-paid life & disability insurance
  • Perks: Onsite gyms with laundry service, wellness activities, casual dress, snacks, game rooms
  • Learning: Tuition reimbursement, conference and training sponsorship
  • Time Off: Generous vacation and unlimited sick days, competitive paid caregiver leaves
  • Hybrid Work Policy: Flexible in-office days with budget for home office setup


The base pay for this role will be between $165,000 and $300,000. This role may also be eligible for other forms of compensation and benefits, such as a discretionary bonus, health, dental and other wellness plans and 401(k) contributions. Discretionary bonus can be a significant portion of total compensation. Actual compensation for successful candidates will be carefully determined based on a number of factors, including their skills, qualifications and experience.

About Two Sigma Investments, LLC

Two Sigma Investments is a quantitative investment management firm that uses data science and technology to identify investment opportunities. The company's solutions are designed to help investors make better decisions and generate higher returns. Two Sigma Investments offers a range of products, including hedge funds, private equity, and venture capital. The company was founded in 2001 and is headquartered in New York City.
Learn more about Two Sigma Investments, LLC
Size
1,500 employees
Industry
Founded
2001

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