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# Principal Software Engineer

- **Company:** Atlas Search, LLC
- **Location:** Mundelein, IL, United States
- **Experience:** Expert
- **Salary:** $275,000 - $300,000
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Build Automation, C++ (Programming Language), Continuous Integration, Data Structures, DevOps, Linux System Administration, Software Architecture, Reliability Engineering, Non-Uniform Memory Access, Low Latency
- **Published:** November 7, 2026
- **Apply:** https://www.thejobnetwork.com/job/6c476602-453f-4674-80b4-2856d0f5d49f/principal-software-engineer

## About the Role

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 * 10+ years of professional C++ development experience in Linux-based environments.
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 * Deep expertise in microsecond-latency C++ development, including cache-conscious data structures, lock-free concurrency, and the C++ memory model.
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 * Strong systems-level performance engineering experience, including kernel bypass, CPU core isolation, NUMA optimization, and minimizing system calls on critical paths.
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 * Background building electronic trading systems, market data platforms, execution engines, or exchange connectivity solutions.
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 * Experience with exchange-native protocols, market data feeds, and feed handler development.
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 * Experience delivering software within co-located trading environments.
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 * Proven ability to lead, mentor, and collaborate with highly technical engineering teams.
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 * Exceptional software architecture and system design capabilities.
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 * Familiarity with DevOps practices, CI/CD pipelines, and build automation.
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 * Experience working within Agile development and Site Reliability Engineering (SRE) frameworks.
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 * Excellent communication skills and the ability to work effectively with both technical and non-technical stakeholders.
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## Description

We're seeking an exceptionally talented, hands-on Principal C++ Software Engineer to join a high-performance Global Trading & Execution technology team at a leading global investment firm.