Senior Manager, 5G RAN - Core Systems Software Architecture

Requirements

• architect and design the full software stack enabling real-time control-plane and data-plane communication between gnodeb and mocn environments in support of amazon leo's satellite-terrestrial integration objectives.
• define software partitioning, module boundaries, and interface specifications for ngc, ngu, rrc, and multi-plmn broadcast components.
• lead development of 3gpp-compliant protocol layers, ensuring deterministic behavior, low latency, and high reliability for satellite-based connectivity.
• oversee integration of transport technologies, including mpls and segment routing, into the ran-core connectivity architecture.
• drive troubleshooting and performance optimization across ngc, ngu, and rrc layers.
• author technical specifications, architecture documents, and interface control documents (icds) for internal and external stakeholders.
• stay current with 3gpp releases, industry trends, and evolving mocn deployment models to guide long-term product strategy aligned with amazon leo's roadmap.

Additional Information

Amazon Leo is building the world's most advanced low Earth orbit (LEO) satellite constellation to deliver high-speed, low-latency broadband connectivity to unserved and underserved communities around the globe. As part of this mission, we are seeking a Senior Manager to lead the design, development, and lab integration of real-time communications software enabling robust, standards-compliant connectivity between gNodeB platforms and Multi-Operator Core Network (MOCN) environments. This role requires deep technical mastery of 3GPP control-plane and data-plane protocols, extensive experience with NGC and NGU interfaces, and the ability to architect, partition, and guide the implementation of complex software systems. Equally important, this leader will build, develop, and mentor a high-performing engineering team, fostering a culture of technical excellence, continuous learning, and career growth. The ideal candidate brings 10+ years experience developing interfaces to 5G Core networks, a strong understanding of RRC signaling, Multi-PLMN broadcast configuration, and PLMN operations, as well as practical expertise with Hardware-in-the-Loop (HIL) testing and physical integration of RAN and transport systems in a lab environment. This Senior Manager will play a critical leadership role in hiring, mentoring, and developing engineers across multiple levels while driving execution of complex technical programs. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Key job responsibilities Technical Leadership & Architecture - Architect and design the full software stack enabling real-time control-plane and data-plane communication between gNodeB and MOCN environments in support of Amazon Leo's satellite-terrestrial integration objectives. - Define software partitioning, module boundaries, and interface specifications for NGC, NGU, RRC, and Multi-PLMN broadcast components. - Lead development of 3GPP-compliant protocol layers, ensuring deterministic behavior, low latency, and high reliability for satellite-based connectivity. - Oversee integration of transport technologies, including MPLS and segment routing, into the RAN-Core connectivity architecture. - Drive troubleshooting and performance optimization across NGC, NGU, and RRC layers. - Author technical specifications, architecture documents, and interface control documents (ICDs) for internal and external stakeholders. - Stay current with 3GPP releases, industry trends, and evolving MOCN deployment models to guide long-term product strategy aligned with Amazon Leo's roadmap. Lab Integration & Hardware-in-the-Loop Testing - Lead lab activities including Hardware-in-the-Loop (HIL) test framework development, physical interface validation, and system-level integration testing. - Develop and validate HIL test frameworks ensuring accurate modeling of physical interfaces, fronthaul/backhaul connectivity, and multi-operator core interactions. - Oversee lab infrastructure planning, equipment procurement, and test environment configuration to support rapid prototyping and validation cycles. - Drive lab-based integration of RAN, transport, and core network components, ensuring end-to-end system alignment and standards compliance. - Collaborate with RF, RAN, and Core engineering teams in the lab to validate satellite-terrestrial network interoperability. Team Building & People Development - Build and scale a high-performing software engineering team through strategic hiring, including conducting phone screens, on-site interviews, and bar raiser activities. - Develop individual growth plans for each engineer, identifying technical and leadership development opportunities aligned with career aspirations. - Mentor engineers at all levels, providing regular coaching on technical depth, system design thinking, and Amazon's Leadership Principles. - Foster a culture of continuous learning through technical brown bags, design reviews, code reviews, and knowledge-sharing sessions. - Identify and develop future technical leaders within the team, creating pathways for promotion and increased scope. - Conduct regular 1:1s focused on career development, skill gap analysis, and stretch assignments that accelerate engineer growth. - Create an inclusive team environment that encourages innovation, calculated risk-taking, and learning from failure. - Drive organizational health metrics including retention, engagement, and internal mobility. Program Execution & Amazon Leadership - Own the technical roadmap and execution plan, driving delivery across multiple workstreams with high standards and operational excellence. - Operate with a bias for action while maintaining the highest bar for quality and safety in satellite communications systems. - Write and present technical documents (6-

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