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.
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
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.

Proven in Defense and Industry 4.0 Environments.
IS-Wireless powers resilient connectivity where others fail-supporting tactical 5G bubbles, autonomous robots, real-time AR maintenance, and mobile command units. From sovereign military networks to smart industrial campuses, our deployments prove the flexibility and reliability of our LiquidRAN™-based private 5G and 6G networks.