Senior Software Engineer, 5G Physical Layer

• Design, implement, and optimize 5G NR PHY algorithms on processor-based and heterogeneous SoC platforms

• Develop software for key PHY functions such as modulation/demodulation, channel estimation, equalization, synchronization, coding/decoding, and HARQ support

• Implement PHY software compliant with 3GPP Rel 15/16/17 specifications

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• Integrate 5G PHY software with RF front-end hardware and digital baseband chains

• Develop and maintain hardware control software using interfaces such as I2C and SPI

• Work with complex SoC architectures, including ARM, DSPs, and hardware accelerators

• Develop software interfaces toward embedded accelerators and DSP blocks

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• Design software within strict real-time constraints and low-latency requirements

• Develop on embedded Linux, DSP operating systems, and lightweight RTOS such as FreeRTOS and Zephyr

• Optimize performance, memory usage, and throughput of PHY software components

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• Create and execute PHY-level test cases and validation scenarios

• Generate, analyze, and verify PHY test vectors and waveforms

• Verify PHY functionality using 5G test equipment (e.g., R&S, Agilent) and commercial UEs

• Debug complex PHY, timing, RF, and performance issues across software and hardware boundaries

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• Provide effort estimation and technical input for PHY software development tasks

• Support customer requests related to 5G PHY features and performance

• Document PHY designs, implementations, and results in Confluence or equivalent systems

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• Collaborate with RF, systems, hardware, and protocol stack teams to ensure clean PHY-MAC interfaces

• Work effectively in a global, distributed team across Europe, India, and the U.S.

• Follow SCRUM / Agile and Continuous Integration development practices

• Operate autonomously while maintaining strong technical communication

• Master of Science or Master of Engineering degree in Electrical Engineering, Communications Engineering, or equivalent

• Significant professional experience as an embedded C and C/C++ software engineer

• Strong background in 5G NR PHY and digital communications theory

• Experience working with SDR platforms and SoC architectures

• Working knowledge of MATLAB and Python for PHY algorithm development and analysis

• Strong understanding of real-time embedded software constraints

• Excellent problem-solving, time management, and communication skills

• Deep understanding of 3GPP 5G NR PHY specifications (Rel 15/16/17+)

• Experience with Non-Terrestrial Networks (NTN) and satellite communications

• Experience implementing PHY algorithms on DSPs and hardware accelerators

• Strong understanding of link budgets, channel models, and RF impairments

• Experience with waveform generation, PHY simulation, and lab bring-up

This is a fast-paced, high-impact environment - flexibility to occasionally work extended hours or weekends during critical periods is expected. At E-Space, you’ll work on cutting-edge PHY software that sits at the heart of next-generation wireless and satellite communication systems. We offer a collaborative environment, competitive compensation, and opportunities to make a real technical impact on global connectivity.

Why E-Space is right for you:

We want you to make the most of your journey at E-Space. That’s why we support and invest in the physical, emotional and financial well-being of our team members and their families. Some of what you can expect when working at E-Space:

• An opportunity to really make a difference
• Sustainability at our core
• Fair and honest workplace
• Innovative thinking is encouraged
• Competitive salaries
• Continuous learning and development
• Health and wellness care options
• Financial solutions for the future

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