Backend Systems Engineer

4 days ago

Chicago, IL, United States Performix Full-time
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 3.5preferred). 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..