Wireless Network R&D / Software Engineer

We are seeking a Wireless Network R&D / Software Engineer to design, develop, test, and improve mobile core network software for Private Mobile Networks. The successful candidate will contribute to 3GPP-compliant mobile core functions, translating telecom specifications into maintainable, reliable, and production-ready software. This role combines hands-on software engineering, network protocol research, cloud-based test environment development, interoperability testing, fault analysis, and technical documentation. KEY RESPONSIBILITIES You will support R&D and software development for mobile core network products, with responsibilities spanning software design, protocol implementation, cloud-based testing, quality improvement, and technical documentation. Mobile Core Software Design & Development • Design and implement mobile core network functions using Go, with opportunities to apply Rust where suitable. • Research 3GPP specifications and translate relevant requirements into software design, implementation, and test requirements. • Develop maintainable, reliable, and operable software components for Private Mobile Network products. Protocol & Network Engineering • Work with mobile core protocols and interfaces such as S1AP, PFCP, GTP, Diameter, RTP, and SIP. • Apply Linux and IP networking knowledge to support network software development, integration, and troubleshooting. • Analyze network behavior using logs, packet captures, and tools such as Wireshark. Testing, Quality & Interoperability • Perform unit testing, integration testing, interoperability testing, and load testing. • Build cloud-based test environments on GCP and conduct validation under realistic operating conditions. • Identify, analyze, and resolve defects through systematic fault investigation and quality improvement activities. Cloud-Native & DevOps Engineering • Use Docker and related virtualization technologies to support development and test environments. • Apply Git-based team development practices, including code reviews and design reviews. • Contribute to cloud-native development practices, with opportunities to work with Kubernetes and scalable deployment environments. Documentation & Team Collaboration • Write clear technical documentation covering design decisions, software behavior, test results, and operational considerations. • Collaborate with engineers, researchers, product stakeholders, and partner teams to deliver high-quality network software. • Communicate technical findings clearly through logical problem analysis and structured reporting. REQUIRED QUALIFICATIONS Education: • Bachelor's or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, Telecommunications, Information Technology, or a related discipline. Experience: • Experience developing commercial software. • Implementation experience using the Go programming language. • Basic knowledge of Linux and IP networking. • Knowledge of virtualization technologies such as Docker. • Knowledge of cloud computing and cloud-based development or testing environments. • Team development experience using Git. • Strong logical problem analysis, technical communication, and collaboration skills. TECHNICAL SKILLS Programming & Software Engineering Go, Rust, commercial software development, maintainable code design, unit testing, code reviews, and design reviews. Mobile Core & Telecom Protocols 3GPP specifications, EPC, IMS, 5GC, S1AP, PFCP, GTP, Diameter, RTP, SIP, and protocol-oriented software requirements. Cloud & Infrastructure Linux, IP networking, GCP, Docker, Kubernetes, virtualization technologies, cloud computing, and cloud-native development environments. Testing & Fault Analysis Integration testing, interoperability testing, load testing, logs, packet captures, Wireshark, defect analysis, and quality improvement. Development Practices Git-based team development, technical documentation, structured problem solving, communication, and collaboration across engineering teams. PREFERRED QUALIFICATIONS • Development experience with Rust. • Experience with EPC, IMS, or 5GC. • Knowledge of mobile core protocols such as S1AP, PFCP, GTP, Diameter, RTP, and SIP. • Design and implementation experience referencing 3GPP specifications. • Fault analysis experience using Wireshark. • Experience with Kubernetes. • Cloud-native development experience. EXPECTED OUTCOMES • Within 2 months: understand the development environment and product architecture. • Within 6 months: independently develop assigned features and evaluate existing deliverables. • Within 12 months: lead quality improvements as the owner of key features. WHAT WE LOOK FOR • Strong software engineering fundamentals and interest in wireless network technologies. • Ability to read specifications, reason logically, and translate requirements into robust implementation. • Hands-on mindset for debugging, packet-level analysis, interoperability testing, and quality improvement. • Clear communication skills for technical documentation, design discussion, and team collaboration. • Motivation to contribute to reliable Private Mobile Network products and next-generation wireless solutions.