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, Digital Predistortion and Envelope Tracking
Provide specifications and reference algorithms for RF, SW and DSP implementations
Conduct SDR system validation and analysis
Propose design and process changes for handling RX jamming and multi-radio coexistence issues considering trade-offs and implementation constrains
Interface with our internal 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, DPD and ET calibration algorithm and define 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 equivalent and relatable degree
15 years of experience in wireless systems design and implementation
Solid knowledge of wireless communications and digital signal processing
Deep understanding of Wireless PHY/MAC, RF data-path and control algorithms
Extensive design and implementation experience in wireless modem and RF transceiver
In-depth knowledge of wireless RF architecture, RF impairments (Phase Noise, Non-linearity, IQ imbalance) and digital compensation techniques
Proven expertise and experience in concepts, architectures, implementation, and validation for Crest Factor Reduction (CFR), Digital Predistortion (DPD) and Envelope Tracking (ET) for High Power GaN Power Amplifiers
Proven understanding on RF link budget, RX AGC operation and optimization techniques in the presence of different jammer conditions
Solid understanding of calibration concepts of RF transceiver, DPD and ET to meet requirements in high volume production
Product experience in FPGA based SDR (software defined radio) design and in 802.11 protocol development
Identify and analyze critical requirements and provide deep dive assessments with respect to critical metric impact, timeline and risks
Familiarity with standard RF lab equipment, as well as simulation tools such as MATLAB and Python
Excellent communication skills and people skills as the position requires the ability to work with others
Applicant must have the ability to obtain a United States Security Clearance
Preferred Qualifications
Ph.D. in Digital Signal Processing, Electrical Engineering, Computer Science, Mathematics, Physics or equivalent and relatable degree
Working experience at startup company for SDR development
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 m
S:CLZNY-CLZEAST
