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

Performix • Chicago, IL

1d • Hybrid

About The Position

We are seeking a detail-oriented, highly analytical Junior Systems Software Engineer to join the core engineering team. The role involves designing, implementing, and optimizing low-level application architecture, networking protocols, and performance-critical systems. The ideal candidate has a strong foundation in computer science, hands-on experience with C++ and Python, and an interest in building responsive, scalable software.

Requirements

• Bachelor of Science in Computer Science, Computer Engineering, or a related technical discipline.
• Strong proficiency in C++ and Python.
• Solid understanding of TCP/UDP networking principles, socket programming, caching mechanisms, operating systems, and computer architecture.
• Hands-on experience with Linux/Bash, Git/GitHub, GDB, and Wireshark.
• Command of object-oriented design, algorithmic complexity, recursive problem-solving, and concurrent state management.
• Strong written and verbal communication skills for technical documentation and code reviews.

Nice To Haves

• GPA of 3.5 or higher.
• Familiarity with C, C#, Java, SQL, or x86 Assembly.
• Experience with SFML, Unity, or VR/AR engines.
• Interest in interactive media, high-performance computing, or game engine mechanics.
• Ability to manage end-to-end projects, from requirement mapping through comprehensive testing.

Responsibilities

• Design, implement, and maintain custom networking components, client-server models, and protocol resolvers involving UDP/TCP, DNS, and socket communications.
• Apply data structures, memory management, and graph-search heuristics, such as A*, custom hashing, and priority queues, to address performance and indexing challenges.
• Develop and execute unit, integration, and stress tests to validate network state synchronization, catch edge cases, and eliminate execution bottlenecks.
• Use low-level debugging tools such as GDB and Wireshark to trace memory leaks, analyze packet flow, and debug asynchronous, multithreaded, or multi-client execution paths.
• Collaborate with cross-functional teams to design modular codebases and maintain version control integrity across release cycles.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level