Skip to content

Full Stack Developer

  • Hybrid
    • Chicago, Illinois, United States
  • $40 - $44 per hour
  • Information Technology

Lead Software Engineer role requiring 8+ years of Core Java, multithreading, JVM tuning, distributed systems, TCP/UDP networking, performance optimization, and architecture leadership.

Job description

Position Overview

We are seeking a highly skilled Lead Software Engineer to join a high-performing engineering team focused on building and optimizing scalable, high-throughput enterprise systems. This role is ideal for a senior engineer with deep Core Java expertise and strong experience designing and supporting distributed systems where performance, reliability, resiliency, and scalability are mission-critical.

Key Responsibilities

  • Design, develop, and optimize high-performance Core Java applications.

  • Lead architecture discussions around scalability, throughput, latency, and resiliency.

  • Analyze, troubleshoot, and improve application performance across distributed environments.

  • Develop optimized, maintainable, and scalable software components and unit tests.

  • Conduct code reviews and identify opportunities for optimization and risk mitigation.

  • Support deployments, release management, and production stability initiatives.

  • Collaborate with engineering teams to resolve complex technical challenges.

  • Tune applications for multi-threaded and high-concurrency environments.

  • Drive engineering best practices, design patterns, and continuous improvement initiatives.

  • Lead technical projects and influence engineering direction across teams.

Job requirements

Required Qualifications

  • 8+ years of hands-on Core Java development experience.

  • Strong expertise in:

    • Multi-threading

    • Concurrent programming

    • Shared memory and synchronization

    • JVM internals and Garbage Collection tuning

    • JNI and NIO

    • Concurrent data structures and collections

  • Strong knowledge of algorithms and data structures.

  • Experience with TCP/IP networking, including TCP and UDP protocols.

  • Experience building scalable, high-throughput distributed systems.

  • Strong troubleshooting, debugging, and performance optimization skills.

  • Experience participating in architecture and system design discussions.

  • Ability to balance reliability, scalability, and performance requirements.

Preferred Qualifications

  • Experience in financial services, trading platforms, or derivatives systems.

  • Exposure to cloud technologies.

  • Knowledge of fault tolerance and redundancy patterns.

  • Experience with BDD testing frameworks.

  • Experience supporting low-latency systems.

or