Senior Architect, 3GPP NR NTN

SES Satellites

Senior Architect responsible for end-to-end technical architecture of SES’s next-generation NTN platform. Leading RAN requirements and integration strategy for high-performance solutions.

Posted 7/12/2026full-timeBetzdorf • 🇱🇺 LuxembourgSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in defining and driving RAN architecture and verification strategies for NTN systems, with a strong focus on 3GPP NR standards and multi-vendor integration. Capable of leading technical decisions and aligning stakeholders to deliver high-performance wireless solutions.

Highest-signal resume keywords

3GPP NR ArchitectureRAN Requirement SpecificationNTN System Integration5G Core ArchitectureBeam Hopping Management

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Applicant Tracking System Keywords

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Hard Skills

Wireless SystemsRAN SystemsNTN ArchitectureVerification StrategySystem SimulationMulti-Vendor CoordinationBeam ManagementPHY PerformanceLink-Level PerformanceChange Request Management

Soft Skills

System Owner MindsetPragmatic RigorHands-On ArchitectLow EgoHigh Standards

Tools & Technologies

O-RAN ArchitectureSMO FrameworkRIC Framework5G CoreDistributed Deployments

Industry Keywords

Satellite CommunicationsRAN Verification3GPP StandardizationAdvanced Research ProgramsBeam Hopping Architecture

About the role

Key responsibilities & impact

Own the end-to-end technical architecture of SES's next-generation NTN platform
Define the architectural vision, drive critical technology decisions, and align internal and external stakeholders
Lead the definition of RAN requirements and guide multi-vendor integration
Establish the verification approach needed to deliver a high-performance solution
Define and drive the 3GPP NR NTN system and RAN architecture
Act as the technical authority for NTN RAN
Specify and drive RAN requirements, ensuring alignment
Define and own the RAN verification and validation strategy
Lead RAN bring-up activities
Own the beam hopping architecture and operational concept
Drive integration of NTN RAN with 5G Core
Specify, drive, and manage change requests with RAN vendors

Requirements

What you’ll need

10+ years in wireless systems, RAN, NTN, or satellite communications
Strong expertise in 3GPP NR architecture, RAN systems, and NTN (Rel ‑ 17+)
Proven experience in RAN requirement specification, verification strategy, and system integration
Hands-on experience with multi-vendor environments, bring-up, and vendor coordination
Solid knowledge of 5G Core architecture, including UPF and distributed/on-board deployments
Strong understanding of NTN constraints and satellite communication systems
Experience with beam hopping, beam management, or payload optimization (Nice to have)
Knowledge of O-RAN architecture, SMO, and RIC frameworks (Nice to have)
Background in PHY, link-level performance, or system simulation (Nice to have)
Participation in 3GPP standardization or advanced research programs (Nice to have)
System owner mindset — drives coherence across domains and vendors
Pragmatic rigor — defines clear requirements and verification without blocking delivery
Hands-on architect — capable of diving into technical issues when needed
Low ego, high standards — builds alignment across strong technical stakeholders

Benefits

Comp & perks

Willing to work at least 60% onsite from office