Apply on Employer Site

Susquehanna International Group · 2 days ago

Machine Learning Researcher - LLM

Greater Philadelphia

Full-time

Onsite

Senior Level

Susquehanna International Group is a global quantitative trading firm focused on scientific rigor and innovation. They are seeking a Deep Learning Researcher to lead research initiatives in large language models, optimize training, and deploy intelligent systems for high-stakes environments.

FinanceFinancial ServicesFinTechVenture Capital

Comp. & Benefits

H1B Sponsor Likely

Responsibilities

Lead and contribute to research initiatives that advance LLM capabilities, including alignment, fine-tuning, and efficient training

Design and execute large-scale experiments, from data pre-processing to model evaluation and deployment

Collaborate with world-class engineers, traders, and researchers to bring ideas from prototype to production

Optimize model performance for structured tasks such as function calling, multilingual applications, and real-time inference

Qualification

Deep LearningLarge Language ModelsPythonML FrameworksDistributed TrainingResearch PublicationCommunication SkillsCollaborative Mindset

Required

PhD in Computer Science, Machine Learning, or a related field—or equivalent practical experience

Experience in ML research or engineering, with a focus on deep learning or generative models

A strong publication record in top-tier conferences such as NeurIPS, ICML, or ICLR

Strong background in modern language modeling techniques such as LLM supervised fine-tuning, RLHF, reasoning models, embedding models, multimodal models, or agentic architectures

Proficiency in Python and ML frameworks such as PyTorch (preferred), TensorFlow, or JAX

Experience with large-scale distributed training, GPU optimization (CUDA/ROCm), or HPC environments

Experience designing and operating large-scale data annotation and curation pipelines, including labeling tools, workflow orchestration, quality-control auditing, and learning feedback loops

Demonstrated ability to take research from conception to production in high-stakes environments

Strong communication skills and a collaborative mindset

Preferred

Proficiency in Python and ML frameworks such as PyTorch

Company

Susquehanna International Group

Glassdoor4.1

Susquehanna is a global quantitative trading firm committing its own capital to trade financial products around the world.

Founded in 1987

Bala Cynwyd, Pennsylvania, USA

1001-5000 employees

https://www.sig.com

H1B Sponsorship

Susquehanna International Group has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (89)

2024 (62)

2023 (54)

2022 (49)

2021 (40)

2020 (36)