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# Staff/Lead Software Engineer

- **Company:** CME Group
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $122,300.0 - $203,900.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Unit Testing, Cloud Computing, Program Optimization, Code Review, Data Structures, Fault Tolerance, Java Virtual Machine (JVM), Java Native Interface, Network Protocols, Transmission Control Protocol (TCP), Multithreading, Low Latency
- **Published:** June 9, 2026
- **Apply:** https://www.dice.com/job-detail/7ee014df-2ba0-4aec-b4f1-76a707fd1a6e

## About the Role

8+ years of Core Java development experience.

 * Focuses on Architecture and Solution efficiencies.
 * Balances performance, capacity and reliability with core system functionality.
 * Identifies potential opportunities for code optimization., * A Senior Engineer with in-depth core Java development experience.
 * Ability to evaluate the characteristics of algorithms and data structures for the given constraint
 * Proficiency in Multi-threading , concurrent data structures, shared memory, synchronization, JNI, NIO, Hashmap etc.
 * Understands queue theory and various designs and implementations to enhance system performance.
 * Experience working with networking protocols (UDP, TCP)
 * Experience with Cloud Technology preferred
 * Familiarity with redundancy and fault tolerance techniques
 * Familiar with JVM internals and garbage collection tuning
 * Familiar with BDD test tools preferred
 * Past experience working in Financial domain or Derivative Exchange preferred

Hybrid environment- 2 days in the office

## Description

* Provides input for code reviews and helps with environment build deployments, release notes and build notices;
 * Reviews code to proactively identify and mitigate potential issues and defects and helps to identify sources of defects as well as troubleshoots various forms of code.
 * Writes optimized application modules and unit tests with minimal guidance.
 * Uses design tools to frequently share and communicate design ideas on larger systems.
 * Utilizes knowledge of modern multi-processor architecture to tune the applications and systems for high throughput and low latency.
 * Uses patterns frequently, contributing to best practice and process enhancements
 * Defines key metrics driving code optimization and leads discussion of code reviews.
 * Manages environment build deployments, release notes and build notices.
 * Leads projects and influences across Division stakeholders


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