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Principal Engineer, Systems

SES Space & Defense•Reston, VA

About The Position

As a Principal Systems Engineer – SATCOM at SES Space & Defense, you will lead systems engineering, integration, verification, and operational readiness activities supporting resilient, multi-orbit satellite communications capabilities. This hands-on technical integration role translates mission and customer needs into practical, traceable, and testable solutions across GEO, MEO, LEO, and hybrid SATCOM services. You will work across terminals, antennas, modems, RF components, IP networks, network management systems, and mission applications to ensure end-to-end system performance, interoperability, and operational readiness. Working closely with customers, vendors, program leadership, and multidisciplinary engineering teams, you will help deliver reliable communications capabilities that meet mission requirements and operational objectives. The role supports SES Space & Defense’s secure, resilient connectivity and integrated space solutions for customers in demanding environments. The company combines satellite capacity, terrestrial infrastructure, advanced network technologies, and deployed user terminals to support mission-critical government operations.

Requirements

  • Bachelor's degree in Systems Engineering, Electrical Engineering, Computer Engineering, Aerospace Engineering, or a related engineering or technical discipline.
  • At least 8 years of progressively responsible experience in systems engineering, SATCOM, RF or networked communications, or mission systems integration.
  • Experience developing system requirements, managing requirements traceability, defining interfaces, planning verification activities, and executing integration and test for complex systems.
  • Working knowledge of multi-orbit SATCOM architectures and practical integration of terminals, antennas, modems, RF equipment, IP networks, network management systems, and mission applications.
  • Working knowledge of MBSE processes, artifacts, and requirements traceability throughout the systems engineering lifecycle.
  • Working knowledge of RF and communications fundamentals, including the link-budget process and the ability to interpret or support link-budget results.
  • Hands-on experience with Linux and Bash, plus basic Python or comparable scripting capabilities for engineering, testing, automation, configuration, or data analysis.
  • Strong technical documentation, communication, collaboration, and cross-functional coordination skills.
  • Ability to work in the Washington, DC metropolitan area and support periodic test activities.

Nice To Haves

  • Current or recent experience with SES mPOWER services, terminals, integration, operations, or closely related technologies.
  • Experience integrating or operating GEO, MEO, LEO, or hybrid SATCOM networks.
  • Familiarity with SysML-based approaches or tools, SATCOM terminal and antenna integration, modem and RF equipment, network management, and over-the-air interoperability testing.
  • Experience with APIs, telemetry, monitoring, configuration management, or automation in communications or mission systems environments.
  • Familiarity with capacity planning, network performance assessment, SATCOM service provisioning, or link-budget results.
  • Experience supporting DoD, government, aerospace, telecommunications, or other mission-critical communications programs.
  • Active security clearance or eligibility to obtain and maintain one.

Responsibilities

  • Lead systems engineering activities from mission needs and concept development through integration, verification, deployment, and operational transition.
  • Define and maintain system requirements, interfaces, and bidirectional traceability across system architectures, verification methods, test procedures, and results.
  • Develop and maintain systems engineering lifecycle artifacts, including CONOPS, technical specifications, Interface Control Documents (ICDs), requirements traceability matrices, Verification Cross-Reference Matrices (VCRMs), integration plans, and technical risk assessments.
  • Apply MBSE processes, artifacts, and traceability practices to clarify system behavior, interfaces, dependencies, and verification relationships.
  • Lead technical integration across SATCOM terminals, antennas, modems, RF components, transport and IP networks, network management systems, and mission applications.
  • Develop verification strategies, test plans, procedures, readiness reviews, and reports; plan and execute laboratory, field, over-the-air, interoperability, and operational test events.
  • Interpret and support SATCOM performance assessments, including availability, capacity, QoS, latency, and operational constraints, while supporting the link-budget process and interpretation of results.
  • Use Linux, Bash, and basic Python scripting to support system configuration, test automation, telemetry and log collection, data analysis, troubleshooting, and repeatable engineering workflows.
  • Coordinate with customers, vendors, program leadership, and engineering teams to resolve technical issues, manage integration dependencies, and support successful system delivery.
  • Mentor engineers, share technical knowledge, and strengthen engineering rigor, integration practices, and overall delivery effectiveness.

Benefits

  • Paid vacation, sick, and personal leave.
  • Medical, dental, vision, life, and disability insurance.
  • 401(k) retirement plan.
  • The position may be eligible for an annual bonus, where applicable.

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