Sr. Modem / DSP Communication Systems Engineer (m/w/d)

ZeroPhase develops sovereign, software‑defined connectivity systems that are resilient and available at scale. We are a highly experienced, motivated, and ambitious team of engineers and innovators working with intensity and focus. What drives us is simple: to set a new standard in connectivity by combining performance, trust, and scalability – and to lay the foundation for the next generation of interconnected communication systems. Our mission is clear – to make sovereign, software‑defined communication systems that are not only state‑of‑the‑art, but also accessible and dependable at scale.

About the Role

As a Senior Modem / DSP Communication Systems Engineer, you will design and implement advanced digital communication algorithms, including modulation, coding, synchronization, equalization, and channel estimation. You will also translate these into efficient real‑time systems using DSP techniques and HDL (VHDL/Verilog) for FPGA/ASIC platforms, ensuring high performance and reliability.

Responsibilities

• Work in close collaboration with FPGA, RF/antenna, and software engineers to design and validate FPGA‑based systems
• Develop floating‑point and fixed‑point models and run simulations to analyze and validate overall system performance, including modem performance
• Support FPGA bring up and validation by developing and implementing system test plans

Qualifications

• Bachelor’s degree in computer science, physics, computer engineering or electrical engineering
• 5+ years of experience in system‑level modeling and/or digital signal processing

Required Skills

• Deep understanding of FPGA development concepts, methodologies, and procedures
• Experience working in the lab and using lab equipment
• Strong problem‑solving skills with high attention to detail and desire to be challenged and learn new skills
• Ability to meet tough goals under high pressure and manage time effectively

Preferred Skills

• Professional experience in working on aspects of multiple access schemes such as TDMA, CDMA and OFDMA
• Professional experience in design and verification of high data rate wireless modems
• Expertise in C/C++, Verilog/VHDL, Python
• Expertise in wireless communication standards, such as 5GNR, LTE, WiFi, Bluetooth, etc
• Expertise in designing and implementing system‑level procedures and algorithms
• Expertise in building and using system‑level simulators and performance analysis
• Expertise in various multiple access schemes including downlink and uplink scheduler designs and tradeoffs
• Understanding of system link budgets and analysis related to communication systems
• Understanding of modem designs, link‑level algorithms and hardware architectures

Seniority level

• Mid‑Senior level

Employment type

• Full‑time

Job function

Engineering and Information Technology

Industries

Telecommunications

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