> Markdown version of [/jobs/ext/2571935-system-software-engineer-windows](https://www.wearedevelopers.com/jobs/ext/2571935-system-software-engineer-windows). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Software Engineer (Windows) - **Company:** CNF Technologies - **Location:** San Francisco, CA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** C (Programming Language), Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Systems Engineering, C++ (Programming Language), Client Server Models, Computer Programming, Computer Engineering, Software Debugging, Integrated Development Environments, Windows API, Network Forensics, Network Protocols, Scrum Methodology, Software Tools, Requirements Management, Software Engineering, Software Systems, System Software, TCP/IP, Transmission Control Protocol (TCP), Traffic Analysis, Multithreading, Marshalling, Integration Tests, Information Technology, Software Performance - **Published:** August 20, 2026 - **Apply:** https://www.careerbuilder.com/job-details/system-software-engineer-windows-san-francisco-ca--7d49df8f-6ef2-4dc3-81ed-48e67edbb68e ## About the Role * Bachelor's degree in Computer Science, Computer Engineering, or related technical field (or equivalent experience). * Professional experience in software engineering with a focus on Windows-based systems, client/server programming, and multi-threaded development. * Strong knowledge of Windows APIs, synchronization objects, and debugging tools. * Familiarity with TCP/IP traffic analysis, compression, encryption, and data (de)marshalling. * Ability to independently manage technical responsibilities and contribute to integrated development efforts. * TS/SCI preferred but not required., Agile Programming Methodologies, C Programming Language, C++ Programming Language, Computer Engineering, Computer Science, Cryptography, Debugging Tools, Feasibility Analysis, Government, Identify Issues, Integration Testing, Intellectual Property Analysis, Mentoring, Microsoft Windows API (Application Programming Interface), Microsoft Windows Operating System, Multithreaded Programming, Network Protocols, Network Traffic Analysis, Performance Management, Problem Solving Skills, Requirements Management, Research Skills, Scrum Project Management and Software Development, Sensitive Compartmented Information (SCI), Server Programming/Applications, Software Development, Software Engineering, System Operations, Systems Engineering, TCP/IP (Transmission Control Protocol/Internet Protocol), Team Player, Technical Leadership, Top Secret Clearance ## Description We are seeking a Mid-Level Software Engineer with expertise in Windows environments to support the development of advanced cyber solutions for U.S. Government clients. The ideal candidate has strong experience in C/C++ programming, Windows APIs, and network protocols. This role requires problem-solving skills, the ability to break down complex tasks, and a proactive approach to feature implementation. The engineer will work in a collaborative Agile Scrum environment, contributing to innovative software solutions and mentoring junior developers. Functional Responsibility In this role you will: * Design, develop, enhance, debug, and implement software solutions. * Conduct research, testing, and integration of new products to meet client requirements. * Develop new applications or enhance existing systems to meet operational needs. * Collaborate with project teams, testers, and end users to define and refine requirements. * Perform feasibility analysis and recommend software tools or solutions. * Troubleshoot, resolve, and improve software performance. * Lead tasks and provide mentorship to junior engineers. * Actively participate in Agile Scrum processes and team ceremonies. * Document and communicate design decisions and implementation strategies. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Infusing Generative AI in your Java Apps with LangChain4j](https://www.wearedevelopers.com/videos/1007-infusing-generative-ai-in-your-java-apps-with-langchain4j) - [How we built an AI-powered code reviewer in 80 hours](https://www.wearedevelopers.com/videos/1511-how-we-built-an-ai-powered-code-reviewer-in-80-hours) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Hacking C# from the inside - how to do anything in NET](https://www.wearedevelopers.com/videos/117-hacking-c-from-the-inside-how-to-do-anything-in-net) - [Programming secure C#/.NET Applications: Dos & Don'ts](https://www.wearedevelopers.com/videos/1126-programming-secure-c-net-applications-dos-don-ts) ## Related Articles - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023)