Susquehanna International Group Tech Stack

Quantitative trading firm with ML-driven research and global multi-asset operations

Financial Services Bala Cynwyd, Pennsylvania 1,001–5,000 employees Privately Held

Susquehanna is a proprietary trading operation running a modern polyglot stack (C++, C#, Python, PyTorch, TensorFlow, Kafka) focused on low-latency distributed systems and ML inference at scale. Active hiring across engineering, research, and finance—with a 3:1 ratio of mid and senior roles to interns—signals aggressive expansion in core trading and research infrastructure. The project portfolio (high-performance C# systems, ML model deployment, live pricing engines, network monitoring) and pain-point cluster (latency, performance tuning, large-scale server management) reveal an organization optimizing for speed and reliability in execution and strategy iteration.

Tech Stack 186 technologies

Core StackC++ C# Python Pandas MySQL Ansible Jira Confluence Splunk Active Directory Java PyTorch TensorFlow NumPy .NET Oracle SQL Server React Kafka VBA WinDbg Check_MK Wireshark Configuration Manager PowerShell UKG Pro HDF5 Jax JavaScript/TypeScript NET Core+155 more

AdoptingKubernetes Service Fabric

What Susquehanna International Group Is Building

◆Challenges

Performance tuning
Ensuring high performance and stability
Improving primary market infrastructure
Improving trading strategy performance
Performance optimization and latency reduction
Troubleshooting complex problems
Managing large-scale server infrastructure
Unique challenges of global markets
Improving trading efficiency
Scalable deployment of ml models

▲Active Projects

High performance c# distributed trading systems
Automation tools for research workflows
Network monitoring and configuration management products
Live fixed income pricing
Connectivity platform enhancement
New pricing and trading applications
High performance clustered environments
Building new environments
Server imaging and deployment
Software build and deployment tools

Hiring Activity

Accelerating120 roles · 120 in 30d

Department

Engineering

Research

Finance

Ops

Data

Legal

Operations

Seniority

Mid

Senior

Intern

Junior

Lead

Manager

Notable leadership hires: Head of Finance

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About Susquehanna International Group

Susquehanna is a privately held quantitative trading and investment firm based in Bala Cynwyd, Pennsylvania, with over 3,500 employees across 16+ global locations. The firm operates proprietary trading operations, institutional sales and research, and venture/private equity activities, underpinned by quantitative research and predictive modeling on large datasets. The engineering organization spans distributed systems, research infrastructure, connectivity platforms, and deployment tooling—all built to support high-frequency and algorithmic trading at scale across multiple asset classes and geographies.

HeadquartersBala Cynwyd, Pennsylvania

Company Size1,001–5,000 employees

Hiring MarketsChina, Australia, United States, United Kingdom

Frequently Asked Questions

What tech stack does Susquehanna use?

C++, C#, Python, PyTorch, TensorFlow, NumPy, Kafka, MySQL, Oracle, SQL Server, and React. Adopting Kubernetes and Service Fabric for containerization and orchestration.

Where does Susquehanna hire globally?

United States, United Kingdom, China, and Australia. Hiring across engineering, research, finance, and operations.

How this profile is built

Susquehanna International Group's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.