Solutions Architect, 4G/5G NTN
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Job Description
Solution Architect at Aalyria focusing on 4G/5G Non-Terrestrial Networks and satellite communications. Leading architectural definitions and driving technology selection within Spacetime division.
Responsibilities:
- Understand and, in some cases, end-to-end system architectures for Non-Terrestrial Networks (NTN) with knowledge of the end-to-end service chain (UE → RAN → Core → Transport/SDN (inc. front, mid and back-haul) → Service layer)
- Lead customer engagement and projects around architecture for LEO/GEO/MEO and multi-orbit satellite systems integrated with 3GPP 4G/5G (Rel-17+) and future 6G concepts
- Own architectural blueprints, interfaces, and decomposition across space segment, ground segment, and mobile network domains, in particular in their interactions with Aalyria’s Spacetime.
- Lead customer solution architecture, requirements collection and translation into Spacetime requirements and project execution
- Drive technology selection and trade-off analyses, where needed
- Drive technical proposal writing for commercial and public sector customers
- Design and optimize radio resource management (RRM), scheduling, beam management, mobility, and interference coordination mechanisms
- Address satellite/NTN-specific constraints (Doppler, delay, ephemeris, beam hopping, power limits, feeder link constraints)
- Ensure RRM and Spacetime implementation alignment with regulatory and spectrum constraints (ITU-R, regional regulators)
Requirements:
- Strong background in 4G/5G mobile network architecture (RAN + Core)
- Proven experience and understanding in SATCOM system architecture (space + ground)
- Deep understanding of 3GPP architecture, protocols, and interfaces
- Hands-on knowledge of RAN concepts: PHY/MAC, scheduling, mobility, beamforming, interference
- Experience producing architecture documents, system diagrams, and technical specifications
- Understanding of 3GPP APIs, RAN OAM and control plane concepts, networking protocols and interfaces
- Understanding of concepts of cloud native, NFV, orchestration and automation, network automation and orchestration APIs, etc.
- Strong communication and leadership skills, ability to interface with business stakeholders in the telco, satcom and defense sectors at all levels and work collaboratively in a cross-cultural team environment.
Benefits:
- Competitive compensation package based on experience
- Hybrid working policy with flexible arrangements
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