AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet – on land, at sea and in flight. About the role We are seeking a End -To- End Telco Engineer to ensure end-to-end service stability and performance across satellite-to-mobile services by diagnosing and resolving cross-domain issues spanning satellite, RAN, core, transport, and OSS layers. Operating within the Service Assurance organization, this role serves as the technical authority for multi-domain incident analysis, working closely with PSC Agents, NOC Telco Engineers, and Managed Services teams to restore service, validate service flows, and ensure compliant end-to-end connectivity during launch, early-life support, and steady-state operations. This role is critical to maintaining end-to-end service integrity for satellite-to-mobile communications, ensuring that incidents are not only resolved but fully understood across domains, enabling reliable service delivery, customer confidence, and scalable global operations. Responsibilities Analyze service degradation or outages across multiple network domains, including satellite payload, RAN, gateway, core network, transport, and OSS. Assess customer and service impact from an end-to-end perspective, identifying cross-domain dependencies and failure points. Correlate alarms, KPIs, logs, and incident timelines to determine end-to-end service behavior. Lead technical troubleshooting for complex incidents requiring multi-domain coordination. Identify root causes spanning more than one network domain and guide corrective actions. Validate fixes and mitigations to ensure full end-to-end service restoration, not partial recovery. Work closely with AST NOC Telco Engineers and Nokia Managed Services NOC Engineers to guide triage, troubleshooting depth, and escalation decisions. Provide technical direction to PSC Agents for accurate customer updates and incident status. Participate in major incident bridges, restoration reviews, and technical war rooms as required. Validate end-to-end service flows, including attach, session establishment, mobility, throughput, and persistence. Ensure service performance meets defined SLA, KPI, and regulatory requirements. Support acceptance of restored services before formal incident closure. Contribute to incident RCA inputs, end-to-end failure analysis, and service improvement recommendations. Maintain technical documentation related to service flows, dependencies, and known failure scenarios. Support Service Assurance governance processes, audits, and operational readiness reviews. Produce end-to-end incident analysis and troubleshooting inputs, service restoration validation and acceptance confirmation, RCA technical contributions and improvement recommendations, and documentation supporting service stability, audit readiness, and operational maturity. Requirements Bachelor's degree in Telecommunications, Electronics & Communication Engineering, Electrical Engineering, or a related technical field. Requirements 5-8 years of experience in telecom operations, service assurance, NOC engineering, or network troubleshooting roles. Proven experience troubleshooting cross-domain issues in mobile, satellite, or hybrid telecom environments. Strong understanding of end-to-end telecom architecture covering RAN, core, transport, OSS, and satellite systems. Hands-on experience analyzing KPIs, alarms, logs, and traces across multiple domains. Knowledge of signaling, session management, mobility, and service continuity concepts. Ability to reason across system boundaries rather than isolated components. Nice to have Advanced telecom or networking certifications. Experience supporting 4G/5G, NTN, satellite-integrated networks, or carrier-grade services. Requirements Strong analytical and problem-solving mindset with an end-to-end perspective. Excellent communication skills to translate complex technical findings into actionable guidance. Ability to operate calmly and decisively during high-severity incidents. Strong collaboration skills across Service Assurance, NOC, Managed Services, and engineering teams. Technology Stack OSS/NMS platforms and monitoring dashboards. ITSM and incident management tools (ServiceNow, Remedy, Jira Service Management, or equivalent). KPI visualization and analysis tools (Grafana, Power BI, or similar). Log analysis and diagnostic tools across RAN, core, and transport layers. Physical Requirements Ability to lift up to 25 lbs. Ability to use a computer for extended periods. Ability to work in a fast-paced operational environment, including on-call or extended incident support when required. Ability to support global operations across time zones during major incidents or launch phases. This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands. AST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.
