Senior Market Data Developer

Harmer; Chicago (IL); Hybrid; Full time

Job summary

A leading global trading firm in Chicago is seeking a Senior Market Data Developer. This role involves designing and building full-stack trading systems that support 24/7 crypto trading operations. The ideal candidate will develop in modern C++ (C++20+) and Python, working closely with traders and quantitative researchers to deliver robust technical solutions. The position offers a hybrid work model and competitive compensation package.

Qualifications

• Experience in full-stack development for trading systems.
• Proficient in modern C++ and Python.
• Understanding of networking principles and APIs.

Responsibilities

• Design and build high-performance trading systems.
• Develop and enhance exchange connectivity and monitoring tools.
• Translate business requirements into technical solutions.
• Support mission-critical systems and participate in on-call support.

Skills

C++ (C++20+)

Python

Networking

Microservices

APIs

Inter-process messaging

Job description

Senior Market Data Developer role with top tier global trading firm in Chicago (hybrid), fantastic comp range

In this role you’d:

-Design and build full-stack, high-performance trading systems to support 24/7 global crypto trading operations, including exchange connectivity and monitoring tools

-Develop in modern C++ (C++20+) and Python, contributing to both greenfield projects and enhancements to legacy systems

-Partner closely with Traders and Quantitative Researchers to translate high-level business requirements into robust technical solutions

-Architect and support mission-critical systems using networking (multicast, WebSockets), microservices, APIs, and inter-process messaging

-Own projects end-to-end, including testing (unit, functional, integration) and participating in on-call support for production systems