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3 weeks ago


San Francisco, United States Vortexlink, Inc. Full time

Algorithm and Signal Processing Engineer,





Full Time opportunity-Office located in Belmont, CA (100% remote considered)



Seeking a senior Algorithm and Signal Processing Engineer to lead software development on our embedded and cloud-based signal processing platforms. You will work with our Product, Software Engineering, and Hardware teams to define system requirements and develop/test applications optimized for state-of-the-art positioning system performance in presence of hardware and wireless channel impairments.



JOB RESPONSIBILITIES

● Work with internal stakeholders to establish positioning system requirements and architect the system.

● Implement state estimation algorithms in radio signal processing software.

● Analyze, source, and select sensor solutions for use in the navigation system.

● Develop sensor models in simulation for evaluation and then implement integration with the navigation system.

● Test navigation software in simulation, hardware-in-loop, and live commercially-operated system.

● Simulate hardware and wireless channel impairments of L1/PHY digital modulations (FSK, PSK, OFDM) to understand system performance, such as I/Q imbalance, clock synchronization, ADC noise, and AGC loop optimization.

● Develop test software to support unit, integration, and system testing of all signal processing software functions.

● Communicate system requirements to software engineering and hardware teams.



MUST HAVE ATTRIBUTES/SKILLS

● BS in Electrical Engineering, Math, or Physics.

● Understanding of wireless communication systems.

● Mathematical background in statistical signal processing, estimation, and detection.

● Signal processing expertise in Matlab, GNU Octave, and/or Python.

● Working knowledge of Python and/or C/C++ language.

● Practical command of software development best practices.

● Fluent written and verbal communication in English.

● Work authorization in the USA.



SHOULD HAVE ATTRIBUTES/SKILLS

● MS/PhD in Electrical Engineering, Math, or Physics.

● Deep understanding of Bayesian estimation techniques, Nonlinear Kalman filter, Particle filter, probability theory, and fault detection and exclusion (FDE).

● Experience with building and using third-party software libraries and Git version control.

● Industrial experience in building real-time positioning systems.

● Experience with ISM band and cellular communication standards.

● Experience with IMU sensor fusion for improved tracking accuracy.



● Experience with machine learning and AI in python with Tensorflow/Pytorch.



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