1710 - Software Engineer II

Sigma Defense is seeking a **Software Engineer II** to join our team developing software solutions for communications, tactical, and hardware-integrated systems. This role involves a combination of desktop application development, web application development, backend services, hardware integration, and system testing. The ideal candidate enjoys solving technical challenges, learning new technologies, and working across multiple disciplines. This position offers opportunities to develop desktop and web-based applications, integrate software with hardware systems, support customer demonstrations, and participate in field testing activities. ***Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.*** - 3-4 years of software development experience (professional, internship, academic, or personal project experience considered). - Experience with object-oriented software development principles. - Understanding of networking fundamentals and TCP/IP communications. - Experience using Git or similar version control systems. - Strong analytical, troubleshooting, and problem-solving skills. - Ability to learn new technologies and adapt to evolving project requirements. - Strong written and verbal communication skills. - Ability to work independently and collaboratively within a small engineering team. - Ability to travel up to 15% of year. - Must be a U.S. citizen. **Candidate Differentiators:** - Experience with Qt and desktop application development. - Experience developing web applications using Angular, React, Vue, or similar frameworks. - Experience developing REST APIs and backend services. - Experience with PostgreSQL, SQL databases, or database design. - Experience with gRPC and Protocol Buffers. - Experience with WebSockets and real-time data streaming. - Experience with Docker or containerized deployments. - Experience developing TCP/UDP network applications. - Experience working with geospatial technologies or mapping applications. - Experience programming embedded systems, microcontrollers, or Arduino-based devices. - Experience integrating software with hardware devices and external systems. - Experience with Team Awareness Kit (TAK) technologies, including ATAK, WinTAK, TAK Server, and Cursor-on-Target (CoT) is preferred. **Computer Programs/Software:** - C++ - Python - JavaScript - TypeScript - Linux **Personnel Clearance Level:** - Candidate must possess or have the ability to obtain an active TS/SCI security clearance. - *Clearance may be sponsored for the right candidate.* **Education Requirements:** - Bachelor's degree from an accredited college or university in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, or related field of study. **Essential Job Duties (not all-inclusive):** - Design, develop, test, and maintain desktop and web-based software applications. - Develop and maintain software using C++, Python, JavaScript, TypeScript, and related technologies. - Develop desktop applications using frameworks such as Qt. - Develop and maintain modern web applications using frameworks such as Angular, React, or similar technologies. - Design and implement backend services, REST APIs, and real-time communication interfaces. - Develop and maintain client/server applications utilizing TCP/IP, UDP, WebSockets, gRPC, and related communication technologies. - Integrate software with hardware devices, sensors, and external systems. - Develop and maintain Protocol Buffer message definitions and communication interfaces. - Support database-driven applications and data visualization tools. - Troubleshoot and resolve software defects throughout the development lifecycle. - Develop technical…