System Architect

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IS-Wireless

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2017

📡 Telecommunications

🤝 B2B

Telecommunications • B2B

IS-Wireless is a top European deep-tech innovator developing ultra-resilient, secure, and resource-efficient 5G/6G radio access solutions for industrial and tactical use. The company, founded in 2017 and recognized with the EIC Seal of Excellence and NATO DIANA 2025 innovation status, holds 10+ patents for its Liquid RAN technology — an open, disaggregated approach enabling rapid restoration and redeployment of base stations in volatile or degraded environments. IS-Wireless operates as a dual-use firm bridging defense and commercial applications, and brings together hardware and software expertise from telecom vendors, operators, and R&D institutions.

📋 Description

• Define system architecture for 5G/6G RAN and Core, aligned with 3GPP, O-RAN Alliance, ETSI NFV and SCF FAPI/nFAPI specifications. • Develop and implement multi-thread real-time/embedded systems with proficiency in design, documentation, implementation and unit tests. • Build system architecture as software programs that operate in virtualized environments (Kubernetes, Docker) ensuring critical connectivity and high availability. • Design and implement E2E Network/System Architecture in Open RAN based model with detailed recommendations for 3GPP and O-RAN features. • Create end-to-end technical blueprints covering RAN functional splits, control/user plane separation, and cloud-native deployments. • Guide engineering teams in implementing scalable, secure, and performant network functions (DU, CU, RIC, Core). • Provide technical support for cross-functional teams implementing the features and define integration, verification, and validation strategies. • Perform system-level performance analysis, capacity planning, and design optimizations. • Ensure architectural compliance with open interfaces (O-RAN fronthaul, midhaul, backhaul) and interop with multi-vendor ecosystems. • Contribute to standardization efforts and track emerging features in Release 17/18/19+ and pre-standard 6G work.

🎯 Requirements

• Strong C/C++ programming background and debugging skills for hands-on implementation work. • Very strong knowledge about multi-thread real-time/embedded systems and proficiency in design, documentation, implementation and unit tests. • In-depth experience with disaggregated and cloud-native RAN implementation architecture. • Familiarity with ETSI NFV framework, MANO, and cloud-native orchestration (Kubernetes, CNF design). • Deep knowledge of 3GPP specifications for 5G NR and Core (R15–R18, early 6G) and O-RAN standards. • Strong understanding of O-RAN architecture, interfaces (OFH CUPS Planes, F1, E1, E2, A1, O1, O2), and RIC functions. • Proven experience in designing large-scale telecom systems (RAN, Core, OSS/BSS or SMO integration). • Familiarity with version control, bug tracking, and CI/CD systems. • Understanding of security, reliability, and QoS in telecom-grade deployments. • Excellent communication skills and the ability to work across multi-disciplinary teams. • Very good English (spoken/written)

🏖️ Benefits

• Competitive salary package that grows with your experience and impact • Access to world-class telecommunications knowledge base and comprehensive training resources • Time for training, conferences, and self-development with ample opportunities for personal growth • Opportunities for growth and advancement based on merit • Ownership of cutting-edge, patent-worthy technology that shapes global connectivity • Exposure to the latest technology and tools that push the boundaries of innovation • Diverse, friendly, and talented international team of engineers and domain experts • Collaborative, low-ego environment that rewards initiative and values your input • Flexible working hours that promote healthy work-life balance • Regular integration events that foster team bonding and camaraderie