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# Software Developer | Core Order Management System | C++ | Experienced Hire

- **Company:** Susquehanna International Group, LLP
- **Location:** Chicago, IL, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Algorithmic Trading, C++ (Programming Language), Data Structures, Software Debugging, Distributed Systems, Financial Information EXchange, Reliability Engineering, Software Engineering, Computer Networking Systems, Concurrency, Low Latency, C++14
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/software-developer-core-order-management-system-c-experienced-hire-chicago-il--450650ab-ee68-462b-84f9-502659934807

## About the Role

Software Development, Order Management, C++ Programming Language, Software Engineering, Distributed Computing, Trading Systems, Brokerage, Continuous Improvement, Reliability Engineering, Architectural Engineering, We're looking for exceptional engineers who enjoy solving difficult systems problems. We hire for technical excellence, curiosity, and the ability to solve complex engineering problems., * An outstanding early-career engineer with exceptional technical ability, deep proficiency in modern C++, and a passion for learning distributed systems.

 * An experienced engineer with hands-on experience designing and building high-performance, low-latency distributed systems, networking infrastructure, or other performance-critical software.

You'll be successful in this role if you have:

 * Deep proficiency in modern C++ and strong software engineering fundamentals.
 * Strong understanding of data structures, algorithms, concurrency, and distributed systems concepts.
 * Excellent analytical and debugging skills, with the ability to reason about complex software systems.
 * A passion for building scalable, reliable, high-performance software.
 * Strong communication and collaboration skills-you enjoy working closely with engineers, traders, operations teams, and business stakeholders.

Experience with distributed systems, electronic trading systems, exchange connectivity, FIX protocol, or financial markets is a strong preference. We're looking for engineers who are self-starters and enjoy tackling complex technical challenges.

## Description

* Design, build, and evolve the distributed systems that power electronic order routing across global exchanges and trading venues.
 * Develop resilient, high-performance connectivity to clients, brokers, exchanges, and internal trading systems.
 * Partner with colleagues across Susquehanna's U.S., Europe, and Asia offices to support global expansion and onboard new markets and trading relationships.
 * Collaborate with traders, operations, developers, and external partners to investigate complex production issues and continuously improve platform reliability and performance.
 * Contribute to architectural decisions, engineering standards, and the long-term technical direction of the platform.
 * Continuously improve the scalability, observability, and operational excellence of the platform.