Core Software Engineer

Ready to make connectivity from space universally accessible, secure and actionable? Then you’ve come to the right place!

E-Space is bridging Earth and space to enable hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are building a highly-advanced low Earth orbit (LEO) space system that will fundamentally change the design, economics, manufacturing and service delivery associated with traditional satellite and terrestrial IoT systems.

We’re intentional, we’re unapologetically curious and we’re 100% committed to innovate space-based communications and deliver actionable intelligence that will expand global economies, protect space and our planet and enhance our overall quality of life.

We are seeking an experienced Software Engineer with background in 5G Core Network development to join our team. This role focuses on architecting, developing, and maintaining critical network functions and control-plane services that form the backbone of next-generation mobile telecommunications infrastructure. You will apply your expertise in 3

GPP protocols, distributed systems, and service-oriented architecture to advance our 5G Core processing solutions while contributing to mission-critical telecommunication systems. This position offers the opportunity to work on high-impact projects that directly support advanced network capabilities and develop innovative solutions that drive the evolution of satellite networks.

• Design, develop, and maintain 5G Core Network Functions and their associated service-based interfaces (Namf, Nsmf, Nupf, etc.) using modern C++, Python, or equivalent languages on Linux-based systems
• Develop and implement 3
  
  GPP protocols including NAS, PFCP, GTP-U, HTTP/2, and network interfaces such as N4 and N11 to ensure standards compliance and interoperability
• Build and enhance service-based microservices architecture with REST-like APIs, leveraging distributed systems design patterns and modern deployment practices
• Troubleshoot complex distributed systems issues, analyze control-plane signaling paths, and debug protocol interactions across the 5G core infrastructure
• Develop and maintain 5G core network control-plane probes for real-time monitoring, protocol decoding, signaling extraction, and network traffic analysis
• Design and implement automated test frameworks for functional, integration, and regression testing of 5G Core features with comprehensive results tracking and validation
• Collaborate with technical leaders and cross-functional teams to elicit requirements, develop technical documentation, and lead concept demonstrations
• Perform technical research, develop performance analysis tools, and optimize network configurations to improve system KPIs and operational efficiency
• Support products through the full release cycle including testing, validation, and deployment

• Bachelor's degree in a STEM discipline (Computer Science, Computer Engineering, Electrical Engineering, or related field)
• Minimum 8 years of professional software development experience in telecommunications or networking domains
• 5+ years of hands-on development experience with 5G Core Network Functions or equivalent LTE/4G EPC (MME, SGW, PGW, HSS) systems
• Proficiency in C++, Python, or equivalent modern programming languages with demonstrated ability to architect and implement complex telecommunications processing solutions
• Deep knowledge of 3
  
  GPP specifications and RAN/5G-/LTE protocols with hands-on experience resolving protocol-layer issues
• Strong understanding of distributed systems, microservices architecture, and control-plane signaling patterns
• Experience with automated testing frameworks, CI/CD pipelines, and test case development with comprehensive…