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Performix Business Services LLC

Junior Backend Systems Engineer (Python/C++) (Hybrid)

Posted Yesterday
Hybrid
Chicago, IL, USA
Junior
Hybrid
Chicago, IL, USA
Junior
Design, implement, and optimize low-level systems software, networking components, protocols, and performance-critical applications. Develop client-server and socket-based systems using C++ and Python, apply algorithms and memory management techniques, and build comprehensive tests. Debug memory leaks, packet flow, and concurrent execution using GDB and Wireshark. Collaborate with cross-functional teams on modular codebases, technical documentation, code reviews, and release-cycle version control.
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We are seeking a detail-oriented, highly analytical Junior Systems Software Engineer to join our core engineering team. In this role, you will design, implement, and optimize low-level application architecture, networking protocols, and performance-critical systems. The ideal candidate brings a strong foundation in computer science fundamentals, hands-on experience with C++ and Python, and a passion for building responsive, scalable software.

 

Key Responsibilities:

·        Systems & Network Architecture: Design, implement, and maintain custom networking components, client-server models, and protocol resolvers (UDP/TCP, DNS, socket communications).

·        Algorithm & Performance Optimization: Apply data structures, memory management, and graph search heuristics (e.g., A*, custom hashing, priority queues) to solve complex performance and indexing challenges.

·        Testing & Quality Assurance: Develop and execute comprehensive unit, integration, and stress tests to validate network state synchronization, catch edge cases, and eliminate execution bottlenecks.

·        Debugging & Problem Solving: Utilize low-level debugging tools (GDB, Wireshark) to trace memory leaks, analyze packet flow, and debug asynchronous multi-threaded or multi-client execution paths.

·        Cross-Functional Collaboration: Partner with cross-functional teams to design clean, modular codebases and maintain version control integrity across all release cycles.

 

Key Requirements:

·        Education: Bachelor of Science in Computer Science, Computer Engineering, or a related technical discipline (GPA 3.5+ preferred).

·        Core Languages: Strong proficiency in C++ and Python. Familiarity with C, C#, Java, SQL, or x86 Assembly is a plus.

·        Systems & Networking: Solid understanding of TCP/UDP networking principles, socket programming, caching mechanisms, operating systems, and computer architecture.

·        Tools & Environment: Hands-on experience with Linux/Bash, Git/GitHub, GDB, and Wireshark. Experience with SFML, Unity, or VR/AR engines is desirable.

·        CS Fundamentals: Proven command of object-oriented design, algorithmic complexity, recursive problem-solving, and concurrent state management.

 

Desired Competencies:

·        Self-starter capable of managing end-to-end projects—from requirement mapping to comprehensive testing.

·        Passion for interactive media, high-performance computing, or game engine mechanics.

·        Strong written and verbal communication skills for technical documentation and code reviews.



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