Wireless Engineer

Position: Wireless Engineer, Satellite

Location: Chantilly, V


Job description:

Job Summary
Lynk is developing cellular-based space payloads and seeks a Wireless Engineer to design and implement feeder link modems for Lynk's spacecraft and ground systems. This role involves developing, implementing, and testing DSP and satellite communication protocols. The ideal candidate will have a strong background in wireless communication, signal processing, and software engineering to drive innovation in next-generation satellite-based networks.

Core Responsibilities

• Design and implement digital signal processing (DSP) algorithms and wireless protocols in the PHY and MAC layers.
• Deliver performant and robust production code targeted to software-defined radio (SDR) platforms using single-board computers and/or FPGAs.
• Evaluate the performance of algorithms in simulation (e.g., MATLAB, Python) prior to implementation.
• Validate performance on target hardware using RF lab equipment like spectrum analyzers and channel simulators, as well as networking tools such as ping and iperf.
• Develop test automation frameworks and manage CI/CD pipelines to support unit, integration, and system testing of modems.
• Work with cross-functional teams across RF, electronics, and hardware domains to integrate, benchmark, and debug payload software and communications systems.
• Debug production issues in conjunction with the operations team to rapidly resolve complex software and hardware anomalies in orbit or on the ground.
• Create system performance visualizations to continuously monitor communication links.
• Perform link budget analysis for satellite communication links and evaluate the selection of spacecraft radios and ground station products.

Qualifications

• A Master's degree or higher in Electrical Engineering, Computer Science, or related field.
• Deep understanding of communication theory and signal processing related algorithms design, such as filter design, clock recovery, signal detection, channel estimation and equalization, channel coding.
• Strong knowledge of some communications and networking standards, such as DVB-S2/DVB-S2X, and protocols, such as TCP/IP, UDP, ZeroMQ, Ethernet, etc.
• Experience with C/C++, Python, MATLAB for algorithm development, modeling, and simulation.
• Strong knowledge of software defined radios - SDRs and their implementation.
• Proficiency in working with Linux based systems

• Hands-on experience in lab testing & characterization.
• Experience using test equipment like signal generators, spectrum analyzers, etc.
• Experience with implementing DSP algorithms in HDL, such as SystemVerilog, VHDL is a plus.
• Knowledge of the 3GPP standards, including LTE and 5G PHY, MAC, and RRC specifications is a plus.