Wireless Engineer - Satellite

About Lynk Lynk is the inventor of satellite direct to device or D2D technology, and has the world’s only commercial license from the FCC to operate a commercial D2D system. Today, Lynk allows mobile network operators' subscribers to send and receive text messages to and from space via standard unmodified, mobile devices. Lynk’s service has been tested and proven on all seven continents, has regulatory approvals in more than 30 countries and is currently being deployed commercially based on more than 40 MNO commercial service contracts covering approximately 50 countries. Our technology will enable all 8 billion people on the planet to stay connected with the existing standard phone in their pocket. Everywhere. No matter what. By joining Lynk, you will have the opportunity to directly touch the lives of billions. Your mission will be to bring mobile broadband to billions, pull hundreds of millions out of poverty, and save countless lives. 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. Job Location: Chantilly, VA