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About the job

Job Description & Responsibilities

Persistent Systems is seeking a Principal Wireless Communication Systems Design Engineer to join our team and be based in our NYC headquarters. In this role, you will be part of a best-in-class Ad Hoc Network system engineering development team. You will work closely with the teams like architecture, RF, FPGA, Software and DSP for the FPGA based SDR (software defined radio) design. You will involve the SDR system performance evaluation, data analysis, issues troubleshooting and performance optimization (power efficiency, signal quality, size of logic resources) to meet the System Design Specifications.

Position Responsibilities

Direct responsibility for development of Crest Factor Reduction and Digital Predistortion

Provide specifications and reference algorithms for RF, SW, and DSP implementations

Conduct SDR/RF ASIC systems validation and analysis

Propose design and process changes for handling RX jamming and multi-radio coexistence issues considering trade-offs and implementation constraints

Interface with our internal SW/FPGA/DSP group to relay the results of the system performance

Collaborate to identify and solve performance issues within the RF and FPGA/DSP sub-systems

Responsible for providing RF transceiver calibration algorithm and defining the testing methods

Measure, Optimize and ensure baseband application is performing optimally

Job Qualifications & Experience

Minimum Qualifications

Bachelor’s degree in electrical engineering, computer science, mathematics, physics, or a related field

10 years’ experience as Electronics Engineer, Radio Frequency Engineer, or related field

120 months of experience in wireless communication systems design, modeling, analysis and troubleshooting

120 months of experience in RF transceiver design including system architecture and system specifications

120 months of experience in RF transmitter and receiver component’s level design including mixer, synthesizer, LNA, PA and antenna

60 months of experience in RX AGC operation and optimization in the presence of different interferer conditions

60 months of experience in improving efficiency and linearity of the high power GaN amplifiers by using Crest Factor Reduction (CFR) and Digital Predistortion (DPD) techniques.

120 months of experience in 802.11 wireless system

60 months of experience in FPGA based SDR (software defined radio) design with solid knowledge of Wireless PHY, RF data-path and control algorithms

96 months of experience in leading RF radio development, identifying and analyzing critical requirements and providing deep dive assessments with respect to critical metric impact,

timeline and risks

120 months of experience in working with RF lab equipment (i.e., VNA, VSG, VSA…)

120 months of experience in using simulation tools such as CST Microwave Studio, AWR Microwave Office, and MATLAB

Total compensation for this role can vary from $180,000 to $220,000 a year based on individual qualifications. Eligibility for yearly discretionary bonus. Persistent Systems, LLC offers a comprehensive benefits package including medical, dental, vision, life, and disability insurance; paid time off (sick time and vacation time); flexible spending accounts; 401(k) plan with company match; fitness membership reimbursement; tuition assistance; mental health benefits; and pet discounts.

Company Overview

Persistent Systems, LLC, a leader in defense technology, has been engineering secure Mobile Ad Hoc Networking (MANET) solutions since 2007, enabling joint forces and multinational coalitions to communicate, collaborate, and achieve mission success. Persistent created the Wave Relay® Ecosystem, a unified data network for unmanned systems, sensors, and software, empowering warfighters to accomplish tactical objectives across the operational area.  Built on the company’s Wave Relay MANET and Cloud Relay™ technologies, this ecosystem delivers a global data fabric for military, first responders, and commercial users. Persistent has offices in New York City, Colorado, North Carolina, Montana, North Dakota, and Wyoming.