Principal System Architect – 5G & 6G

Principal System Architect – 5G & 6G Build the future of ultra-resilient connectivity! We usually respond within a day Why this role matters At IS-Wireless, we're building some of the most advanced 5G/6G networks in Europe. This isn't just theoretical - it's about real-world deployments, with actual clients, in demanding environments, including the defense sector. Your mission Technical Authority: Serve as the primary technical face of IS-Wireless for strategic clients and high-level engagements. Solution Architecture: Lead the design and technical validation of full-stack 5G solutions for multi-million euro deals. Roadmap Alignment: Work closely with the CTO to ensure the product roadmap meets market demands and technical excellence. RFP/RFQ Mastery: Own the technical strategy for complex tenders, ensuring our proposals are bulletproof and superior to traditional vendors. Ecosystem Leadership: Represent IS-Wireless at industry events and standards bodies as a leading expert in Open RAN. Skills & Experience (Must-Have) Deep-Tech Mastery: 12+ years in the Telecommunications industry with a profound understanding of 4G/5G, RAN, and Core architecture. Architectural Vision: Practical knowledge of Open RAN architectures (O-RU, O-DU, O-CU, RIC) and disaggregated network design. Strategic Influence: Proven track record in a Solutions Architecture or Technical Leadership role where your input directly resulted in major contract wins. Communication: Exceptional ability to simplify complex technical concepts for C-level stakeholders while maintaining absolute credibility with engineers. Fluent English: Operating on a global stage, leading negotiations with international partners and clients. Nice-to-Have Experience with defense sector requirements or highly regulated industries. Knowledge of virtualization, cloud-native infrastructure, and modern networking stacks. Active participation in industry bodies (e.g., O-RAN Alliance, 3GPP). What We Offer Competitive Package: A salary reflecting your seniority and impact, plus an attractive commission system. Equity Opportunity: Eligibility for a stock option plan based on long-term commitment, loyalty, and exceptional performance. Strategic Influence: A seat at the table where key technical and commercial decisions are made. Real-World Impact: Your work directly supports the deployment of ultra-resilient 5G networks in critical and demanding environments. Global Reach: Opportunity to lead projects across three continents and collaborate with a world-class team of domain experts. Flexibility : A hybrid work model designed for high-performance leaders, adjusted to project and business needs. Department Product Development Locations Piaseczno, Poland Remote status Hybrid Piaseczno, Poland Gain expert knowledge and challenge yourself Opportunity A great opportunity to develop your skills in building networks in the Open RAN model Knowledge Get access to the top-class telecommunications knowledge base and training Challenge Interesting and challenging work within an international environment of talented engineers About IS-Wireless IS-Wireless is a top European Deep Tech innovator, awarded the EIC Seal of Excellence and holding a portfolio of 10+ patents. As a proud NATO DIANA 2025 innovator, we operate as a Dual-Use company, developing ultra-resilient, secure, and resource-efficient 5G networks for both industrial and tactical applications. Our patented Liquid RAN technology represents a new generation of open, disaggregated radio access designed for exceptional reliability, flexibility, and resource efficiency. It enables rapid restoration and redeployment of base stations, even in volatile or degraded environments. Our solutions are built for performance under pressure, supporting ultra-resilient mobile networks that withstand disruption. With a dual-use approach, we bridge defense innovation and commercial applications to ensure secure, high-performing connectivity where it matters most. Our team stands out for creative problem-solving, unconventional thinking, and deep expertise. We bring together experience from hardware and software vendors, telecom operators, and R&D institutions, uniting skilled developers, engineers, and business leaders. Founded in 2017 Co-workers 45+