Senior PHY Software Engineer – 2G/4G/5G
Parallel Wireless22 hours ago
Bengaluru, IndiaSenior
Responsibilities
- Design, develop, debug, integrate, and maintain PHY software for cellular communication systems.
- Work across 2G, 4G, and 5G, including PHY implementation and interaction with the broader system.
- Analyze logs, traces, crash dumps, KPIs, configuration, and system behavior to isolate issues and determine root causes.
- Develop and optimize PHY software and algorithms for performance, reliability, and product quality.
- Understand and extend existing codebases and repositories without destabilizing functionality.
- Collaborate with MAC, RLC, RRC, RF, DSP, hardware, and system teams on complex product and field issues.
- Contribute to AI-assisted development, log analysis, and root-cause-analysis tools and agents over time.
Requirements
- 10+ years of experience in wireless communication or PHY software development, integration, debugging, or system troubleshooting.
- Strong hands-on experience with 4G/LTE and/or 5G NR PHY, plus working knowledge of other cellular radio access technologies such as 2G.
- Strong understanding of PHY architecture, algorithms, implementation, and interaction with other protocol layers.
- Experience with PHY log analysis, debugging, issue isolation, and root-cause analysis, including non-obvious failure mechanisms.
- Ability to correlate logs, traces, configuration, KPIs, and system behavior rather than relying only on predefined debugging procedures.
- Strong C and C++ programming and debugging skills, with Python or scripting skills for automation and analysis.
- Understanding of DSP, digital communication, PHY/RF concepts, and relevant 3GPP specifications.
- Preferred experience with multiple radio access technologies, O-RAN/Open RAN, or advanced 5G PHY features.
- Preferred experience with MATLAB or similar PHY analysis, modeling, or simulation tools.
- Preferred experience with Linux, Git, ARM, SIMD/NEON/AVX, optimized DSP implementations, Wireshark, Kibana, or similar telecom analysis tools.
- Exposure to AI/LLM developer tools, coding assistants, automation, log processing, or internal debugging and analysis tools is beneficial but not mandatory.
About Parallel Wireless
Parallel Wireless builds open, cloud-native RAN software and solutions for 2G–5G networks used by mobile network operators. Its ALL G O-RAN platform supports interoperable deployments and network automation, with software licensing and services as key revenue streams. Founded in 2012 and headquartered in Nashua, New Hampshire, the privately held company reports engagements with over 50 mobile network operators worldwide.