5G/6G C Developer

Product Development Piaseczno, Poland Fully Remote 5G/6G C Developer Build the future of ultra-resilient connectivity! We usually respond within three days Role scope Join our L2/L3 team to develop high-performance system software and algorithmic solutions that power 5G network infrastructure. You'll focus on data processing engines, performance optimization, and system-level components using C99, working on computational challenges rather than protocol specifications. Responsibilities Develop and optimize high-performance data processing algorithms and engines using C99.Implement system-level software components for network data flows, buffering, and memory management.Design and optimize data structures, algorithms, and computational modules for 5G network processing.Collaborate with L2/L3 team members on system architecture and performance optimization challenges.Profile and tune system performance, memory usage, and computational efficiency of network software.Implement multi-threaded system components and concurrent data processing pipelines.Debug complex system-level issues and optimize algorithmic bottlenecks in network processing. Requirements 3+ years of professional C development experience with strong focus on C99 standard and system programming.Solid understanding of algorithms, data structures, and computational complexity optimization.Experience with system-level programming, multi-threading, and high-performance computing.Knowledge of memory management, performance profiling, and system optimization techniques.Strong analytical and algorithmic problem-solving skills for complex computational challenges.Familiarity with Linux systems programming, debugging tools, and performance analysis.Very good English (spoken/written). Additional Advantages Experience with high-performance computing, parallel processing, or real-time data processing systems.Knowledge of network data processing, packet processing, or telecommunications system software.Familiarity with performance optimization tools, profilers, and system monitoring.Understanding of concurrent programming patterns and lock-free data structures.Experience with system software development in telecommunications or networking domains.Background in computer science, algorithms, or high-performance system development. How we work Loyalty & team spirit — we have each other's backs, always. Sincerity & openness — we say what we think, even when it's uncomfortable. Courage & ambition — we take positions, defend them, and aim high. "How can I help?" attitude — we help because we want to, not because we have to. Out of the comfort zone — we build things that haven't been built before. That's the point. Zero-latency — we act. No waiting, no procrastinating, no excuses. What We Offer Competitive salary package that grows with your experience and impactAccess to world-class telecommunications knowledge base and comprehensive training resourcesTime for training, conferences, and self-development with ample opportunities for personal growthOpportunities for growth and advancement based on meritOwnership of cutting-edge, patent-worthy technology that shapes global connectivityExposure to the latest technology and tools that push the boundaries of innovationDiverse, friendly, and talented international team of engineers and domain expertsCollaborative, low-ego environment that rewards initiative and values your inputFlexible working hours that promote healthy work-life balanceRegular integration events that foster team bonding and camaraderie About IS-Wireless IS-Wireless is a top European deep-tech innovator, awarded the EIC Seal of Excellence and holder of 10+ patents. As a NATO DIANA 2025 innovator, we operate as a dual-use company, building 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. We value creative problem-solvers, unconventional thinkers and deep domain experts who thrive in demanding scenarios. Department Product Development Locations Piaseczno, Poland Remote status Fully Remote Current job openings Principal System Architect – 5G & 6G Product Development Piaseczno, Poland Hybrid Head of Solutions Engineering – 5G & 6G Product Development Piaseczno, Poland Hybrid System Architect Product Development Piaseczno, Poland Fully Remote More jobs 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+ jobs--overlay#unobserveClickOutside common--modal:closed->jobs--overlay#observeClickOutside " data-jobs--overlay-overlay-value="false" data-jobs--overlay-overlay-class="!fixed flex flex-col inset-0 rounded-t-6 shadow-job-form-overlay z-career-job-application-form-overlay" data-jobs--overlay-minimize-button-hidden-class="hidden" data-careersite--jobs--form-overlay-target="form" style="--topOffset: 40px; --overlayDuration: 300ms;"> Product Development Piaseczno, Poland Fully Remote 5G/6G C Developer Build the future of ultra-resilient connectivity! Loading application form Role scope Join our L2/L3 team to develop high-performance system software and algorithmic solutions that power 5G network infrastructure. You'll focus on data processing engines, performance optimization, and system-level components using C99, working on computational challenges rather than protocol specifications. Responsibilities Develop and optimize high-performance data processing algorithms and engines using C99.Implement system-level software components for network data flows, buffering, and memory management.Design and optimize data structures, algorithms, and computational modules for 5G network processing.Collaborate with L2/L3 team members on system architecture and performance optimization challenges.Profile and tune system performance, memory usage, and computational efficiency of network software.Implement multi-threaded system components and concurrent data processing pipelines.Debug complex system-level issues and optimize algorithmic bottlenecks in network processing. Requirements 3+ years of professional C development experience with strong focus on C99 standard and system programming.Solid understanding of algorithms, data structures, and computational complexity optimization.Experience with system-level programming, multi-threading, and high-performance computing.Knowledge of memory management, performance profiling, and system optimization techniques.Strong analytical and algorithmic problem-solving skills for complex computational challenges.Familiarity with Linux systems programming, debugging tools, and performance analysis.Very good English (spoken/written). Additional Advantages Experience with high-performance computing, parallel processing, or real-time data processing systems.Knowledge of network data processing, packet processing, or telecommunications system software.Familiarity with performance optimization tools, profilers, and system monitoring.Understanding of concurrent programming patterns and lock-free data structures.Experience with system software development in telecommunications or networking domains.Background in computer science, algorithms, or high-performance system development. How we work Loyalty & team spirit — we have each other's backs, always. Sincerity & openness — we say what we think, even when it's uncomfortable. Courage & ambition — we take positions, defend them, and aim high. "How can I help?" attitude — we help because we want to, not because we have to. Out of the comfort zone — we build things that haven't been built before. That's the point. Zero-latency — we act. No waiting, no procrastinating, no excuses. What We Offer Competitive salary package that grows with your experience and impactAccess to world-class telecommunications knowledge base and comprehensive training resourcesTime for training, conferences, and self-development with ample opportunities for personal growthOpportunities for growth and advancement based on meritOwnership of cutting-edge, patent-worthy technology that shapes global connectivityExposure to the latest technology and tools that push the boundaries of innovationDiverse, friendly, and talented international team of engineers and domain expertsCollaborative, low-ego environment that rewards initiative and values your inputFlexible working hours that promote healthy work-life balanceRegular integration events that foster team bonding and camaraderie About IS-Wireless IS-Wireless is a top European deep-tech innovator, awarded the EIC Seal of Excellence and holder of 10+ patents. As a NATO DIANA 2025 innovator, we operate as a dual-use company, building 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. We value creative problem-solvers, unconventional thinkers and deep domain experts who thrive in demanding scenarios. A great opportunity to develop your skills in building networks in the Open RAN modelGet access to the top-class telecommunications knowledge base and trainingInteresting and challenging work within an international environment of talented engineers 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.