Principal Engineer, Level 3

At SES Space & Defense, we deliver secure, resilient connectivity and integrated space solutions for customers operating in the world's most demanding environments. As part of SES S.A., a global leader in satellite-enabled communications, we combine capabilities across all orbits with extensive global ground infrastructure, managed networks, hosted payload solutions, and mission integration services to support communications, sensing, data transport, and operational resilience worldwide.

Our vertically integrated space and ground capabilities bring together satellite capacity, terrestrial infrastructure, advanced network technologies, and deployed user terminals to support mission-critical government operations around the world. We are a trusted partner to the U.S. Federal Government and national security community, allied governments, NATO, NASA, and other civilian agencies, delivering reliable, high-performance solutions when mission success is critical.

At SES Space & Defense, our people are our competitive advantage. You'll work alongside a mission-driven team committed to integrity, innovation, accountability, and delivering real-world impact for customers whose missions matter most.

In this role, you will serve as a senior technical authority supporting the deployment, integration, sustainment, and troubleshooting of mission-critical GEO and MEO satellite communications systems. You will provide Tier III engineering support across SES Space & Defense's global SATCOM infrastructure, working directly with customers, field personnel, network operations teams, and engineering organizations to resolve complex technical issues and ensure reliable service delivery.

This position combines hands-on field engineering, systems integration, operational troubleshooting, and customer engagement across a broad range of satellite communications technologies. You will play a key role in maintaining operational readiness, improving service reliability, and supporting the successful deployment of new capabilities across government and defense customer environments.

• Provide Tier III technical support for GEO and MEO satellite communications services, supporting escalated operational and customer issues
• Perform factory acceptance testing (FAT), bench testing, validation, and certification of SATCOM equipment, terminals, and integrated systems
• Support installation, activation, integration, and sustainment of fixed and mobile satellite communications systems in customer environments
• Conduct site surveys and technical assessments, providing recommendations for system design, deployment, and operational readiness
• Troubleshoot complex SATCOM, networking, and system integration issues across customer and SES-operated infrastructure
• Support field service activities, including domestic and international travel for installations, repairs, upgrades, and operational support
• Develop and maintain technical documentation, as-built drawings, operational procedures, and troubleshooting guidance
• Deliver customer and internal training on SATCOM systems, operational procedures, and troubleshooting methodologies
• Support warehouse, RMA, asset management, and equipment lifecycle activities to ensure operational readiness of deployed systems
• Collaborate with Network Operations, Engineering, Service Delivery, and customer stakeholders to improve system performance and service reliability

You are a highly capable SATCOM engineer with extensive experience supporting operational satellite communications systems in government, military, or mission-critical environments. You possess strong technical expertise across GEO and MEO architectures and are comfortable troubleshooting complex issues…