Service Engineer - Service Enablement

<div class="content-intro"><p>AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.</p></div><p><strong>Position Overview</strong></p> <p>We are seeking a talented and motivated Service Engineer to join the Service Enablement team, owning the RF and system-level correctness of every satellite service pass — from beamforming configuration through link budget validation to post-pass RF/RAN analysis. This role sits at the intersection of RF systems engineering, satellite payload configuration, and ground segment operations, responsible for configuring, validating, and troubleshooting satellite RF configuration against link budget and RF chain requirements, and for tracing anomalies back through telemetry, IQ captures, and LTE/RAN counters to root cause. This person works across ground station sites applying consistent, version-controlled configuration practices, and acts as a Service Enablement feature owner — defining acceptance criteria and KPIs for network/RF features, leading readiness reviews, planning validation from lab through in-orbit test (IOT) to production, and ensuring a clean technical handover to Operations, Service Delivery, and Service Assurance.<strong> </strong></p> <p><strong>Key Responsibilities:</strong></p> <ul> <li>Lead in-orbit testing and LTE end-to-end validation across the satellite payload, gateway RF chain, and RAN domains.</li> <li>Own technical validation of satellite and gateway configuration files, digital beamforming scaling, DSA settings, frequency plans, ADC/DAC scale factors, and AGC loop parameters against per-pass link budget targets.</li> <li>Perform RF and link budget analysis for LEO service passes, including FSPL vs. elevation-angle-dependent scan loss, EIRP and G/T budgeting, and beam pattern and pointing accuracy.</li> <li>Analyze IQ domain captures to diagnose signal quality, calibration convergence, harmonic/interference effects, and beamforming performance.</li> <li>Troubleshoot RF, RAN, payload, and gateway issues impacting LTE performance, mobility, handovers, multibeam operation, and customer experience, using telemetry, RF measurements, and RAN counters.</li> <li>Define feature acceptance criteria, RF/RAN KPIs, validation plans, rollout strategies, and production readiness success metrics.</li> <li>Lead cross-functional technical reviews, coordinating feature execution with R&D, Operations, Service Delivery, Service Assurance, and test teams.</li> <li>Build and maintain custom diagnostic and visualization tooling (RF/telemetry dashboards, beam and spectrum visualizers, IQ analyzers) to accelerate pass analysis and troubleshooting.</li> <li>Drive technical reporting, documentation, KPI reviews, readiness assessments, and production handover packages for management and stakeholders.<strong> </strong></li> </ul> <p><strong>Qualifications</strong><strong> </strong></p> <p><strong>Education:</strong></p> <p>B.Sc. in Electrical Engineering, Telecommunications, RF Engineering, Computer Engineering, or a related field.</p> <p><strong>Experience:</strong></p> <ul> <li>5+ years of experience in RF engineering, RAN, satellite communications, or wireless systems validation environments.</li> <li>Practical understanding of link