Ranjith S
@ranjiths
Senior wireless communications engineer specializing in 5G PHY, DSP algorithms, and RF/baseband integration.
IndiaWhat I'm looking for
I am a telecommunications professional with 10+ years of experience in digital signal processing, PHY/RF system development, and 5G NR, LTE, DVB‑T2 and GSM receiver design. I have led development of 5G NR upper‑PHY algorithms (including PRACH detection), MATLAB modeling, C/C++/Python implementations, and automation that enabled ORAN‑based radio unit integration and performance optimization.
I have delivered end‑to‑end solutions from algorithm design and validation to production code migration and test automation, including IQ impairment, time alignment and PAVT measurement solutions. I collaborate with radio vendors, design testbenches and measurement processes, and have a strong record of improving receiver performance and building robust PHY/DSP/RF toolkits for compliance with 3GPP releases.
Experience
Work history, roles, and key accomplishments
RALead Engineer
Radisys
Jul 2022 - Present (3 years 3 months)
Led development of Radisys 5G NR upper PHY (baseband) PRACH receiver algorithms and Matlab-based performance evaluations, integrating multiple radio units and tuning parameters to validate PRACH performance for ORAN-based deployments.
RAStaff Software Engineer
Radisys
Dec 2018 - Jun 2022 (3 years 6 months)
Developed receiver and measurement features for RF and PHY testing including Time Alignment, Burst Detection, PAVT and IQ impairment measurements, and implemented incremental updates for 5G NR Release 16 validation.
NODeveloped GSM/2G SBTS receiver features and testbenches, performed crashdump analysis and bug fixes in 2G baseband modules, and optimized memory usage on Nyquist and Kepler DSPs.
Software Engineer
MaxEye Technologies Pvt Limited
Jul 2015 - Aug 2017 (2 years 1 month)
Designed and implemented DVB-T2 physical layer baseband tools including synchronization, soft demapping, LDPC decoder, BCH encoder/decoder and receiver buffer models for DVB-T2 products.
NODeveloped automation frameworks for performance and stability testing of RNC and functional testing of BSC, including packet drop detection in UMTS networks.
Education
Degrees, certifications, and relevant coursework
Ramanathapuram Vivekananda College of Engineering
Master of Technology, Digital Communication Engineering
2013 - 2015
Completed M.Tech in Digital Communication Engineering focusing on wireless communication and signal processing.
PCPES University, Electronic City Campus
Bachelor of Engineering, Electronics and Communications Engineering
2008 - 2012
Completed Bachelor of Engineering in Electronics and Communications Engineering with coursework in digital communications and signal processing.
Availability
Location
IndiaAuthorized to work in
Job categories
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