Hybrid Connectivity Systems Engineer – Architect

Your mission Reporting to the CTO, you own the end-to-end system architecture of OIQ’s hybrid NTN-TN connectivity solution and its land-mobility MOVE product. You turn customer, mission and standards requirements into a coherent architecture spanning space segment, gateways, networks and user terminals, and steer it through integration, verification and deployment with internal teams, suppliers and partners. 1. End-to-end system architecture ▪ Architect the hybrid satellite-terrestrial (NTN-TN) solution, ensuring seamless interoperability for mobility and handheld use cases. ▪ Define, manage and trace user-terminal (edge/handheld) and gateway requirements into system architectures compliant with 3GPP (Rel. 15+, incl. Rel. 17+ NTN), ETSI, ITU and FCC. ▪ Own end-to-end mission interfaces: spaceborne platform and payload software, terminal RF control, protocol stacks, integrated modems and battery management. ▪ Lead the architecture of digital hardware (modems, modem accelerators, application processors), physical layer and protocol-stack software. ▪ Define network strategies for LEO/MEO/GEO constellations with 5G/LTE/RedCap, including RAN, core and transport design for low-latency, high-throughput connectivity. ▪ Specify feeder-link requirements for data and control exchange between TN and NTN; set spectrum-sharing, interference-mitigation and beamforming strategies. 2. Integration, verification & validation ▪ Guide network planning and simulation with the network design team. ▪ Write integration and system test specifications; oversee breadboard validation of critical building blocks. ▪ Steer lab, over-the-air (OTA) and drive testing, proof-of-concepts and demonstrations that prove NTN-TN interoperability. ▪ Safeguard end-to-end service provisioning and data-path integrity across the full RF communications chain. 3. Partners, suppliers & delivery ▪ Evaluate component and subsystem partners; coordinate external technical partnerships. ▪ Define system and subsystem sign-off for supplier and subcontractor deliverables: milestones, work packages, plan sign-offs and integration. ▪ Act as primary technical contact for cellular wireless development and deployment across OIQ’s partner and customer ecosystem. 4. Collaboration & mentoring ▪ Work closely with hardware, software and AI colleagues; maintain rigorous architecture documentation (e.g. GitHub). ▪ With the CTO, mentor working students, interns and extended team members on 4G/5G NTN-TN connectivity.

Your profile
Essential ▪ Bachelor’s, Master’s or PhD in Electrical Engineering, Wireless Communications, Telecommunications, Computer Science or a related field. ▪ 8+ years’ wireless systems-engineering experience, ideally in cellular handheld and satellite communications (telecom, aerospace or automotive). ▪ Deep knowledge of 3GPP (incl. Rel. 17+ NTN), 5G NR, LTE, NB-IoT, RAN, core (EPC/5GC) and transport networks. ▪ Strong RF and link-level expertise: beamforming, MIMO, waveform design, modulation (OFDM, QAM, DSSS), spectrum allocation, interference management and link budgets. ▪ Proficiency in MATLAB, HGSS, ADS, Ansys, Python, C++ or similar simulation tools; experience with embedded/IoT systems, edge AI and cloud-based telematics. ▪ Familiarity with RF test equipment and validation platforms (e.g. Keysight, Rohde & Schwarz, Viavi, Anritsu, Spirent, Amarisoft). ▪ Working knowledge of Jira, Confluence, GitHub and Microsoft 365; customer-oriented leader and clear communicator, comfortable with ambiguity. ▪ Fluent English; working proficiency in French or German. Valid driving licence (field testing and partner visits). Preferred ▪ LEO/MEO/GEO satellite communications and network slicing; O-RAN, SDN and cloud-native 5G core. ▪ Electronically steered antennas, phased arrays, mmWave; V2X/C-V2X, edge computing and AI-driven network optimisation. ▪ Experience in automotive, rail, agriculture, fleet or aerospace connectivity; containerised networking (Kubernetes, Docker). Why OrbitsIQ? ▪ 30 days’ paid annual leave plus 24 and 31 December, in addition to Luxembourg’s 11 statutory public holidays (statutory minimum: 26 days). ▪ Competitive salary and Luxembourg social-security coverage (health, pension, accident insurance). ▪ Flexible

working hours
; hybrid work applied within cross-border telework thresholds for residents of France, Belgium and Germany. ▪ Real architectural ownership in a multinational, collaborative start-up with short decision paths, visionary leadership and a strong investor and partner network. ▪ Contribution to fitness or health-related activities, and support for professional development. ▪ A multinational, collaborative start-up with short decision paths, visionary leadership and a strong investor and partner network, and the chance to shape the future of mobility, handheld connectivity and space.

About us
OrbitsIQ Global (OIQ) is a NewSpace startup providing secure, persistent session, NTN-TN ‘always-on’ hybrid connectivity solutions. Specializing in next-generation services for mobility markets, OIQ powers innovation through its enterprise-class, global coverage, seamless and secure connectivity solutions. We are focused on the elimination of network dead zones while efficiently bridging non
- terrestrial and terrestrial (5G) networks for a cohesive and uninterrupted user experience. At the heart of our mission is the commitment to shaping the future of mobility, revolutionizing the world of automated and connected vehicles. At OIQ, we bring market-leading technical and commercial know-how to bear upon our program execution. As a team, we value quality, innovation, teamwork, open conversation, transparency and a commitment to excellence.