PHYLayer EngineerWireless & Optical Wireless Communications Signal Processing FPGAFunctionLevelEducationExperienceLocationResearch & Development - Optical Wireless PHYSenior Physical Layer DeveloperM.Tech / M.S. / Ph.D. - ECE, EE, Signal Processing5-8 years PhD counts as experienceOn-siteResponsibilities Design and develop PHY algorithms for LiFi and FSO - modulation (OOK, PPM, DCO-OFDM, ACO-OFDM),channel coding (LDPC, Polar, RS), and synchronisation Model and simulate optical wireless channels: atmospheric turbulence, pointing errors, IM/DD receiver noise,ambient light interference, and LED/laser non-linearities Build end-to-end link-level simulation chains in MATLAB or Python and evaluate BER, throughput, andspectral efficiency under realistic conditions Implement validated algorithms on FPGA - translate fixed-point models into RTL or HLS; own algorithmcorrectness through hardware validation Write bit-exact C/C++ reference models to support hardware verification Track andengage with relevant standards: IEEE 802.11bb (LiFi), ITU-T FSO, and adjacent wireless standardsRequired M.Tech, M.S., or Ph.D. in ECE, Electrical Engineering, Signal Processing, or a related field - thesis or researchin optical wireless, VLC, or wireless communications is a strong indicator Strong fundamentals in digital communications: modulation, channel coding, detection, estimation, andsynchronisation Hands-on experience building PHY simulations from scratch in MATLAB or Python - not just toolboxes Solid understanding of OFDM: multipath channels, cyclic prefix, pilot design, and channel estimation Fixed-point thinking - ability to design algorithms aware of hardware quantisation and implementation cost FPGAawareness: understand LUT/DSP/BRAM trade-offs, pipelining, and timing well enough to makehardware-friendly algorithm decisions Familiarity with VHDL or Verilog to write or review RTL for PHY blocks Exposure to AMD/Xilinx Vivado - simulation, synthesis, and reading timing and resource reports Working knowledge of at least one wireless or optical wireless standard; ability to read and implement fromspec documentsPreferred Experience with 3Gpp, IEEE 802.11bb (LiFi) or ITU FSO link specifications Optical channel modelling: log-normal turbulence, Gamma-Gamma distribution, pointing error statistics LEDnon-linearity, predistortion, and flicker mitigation for VLC systems Optical MIMO, spatial diversity techniques, and APD / PIN photodetector front-end modelling Cellular or 5G NR PHY background - OFDM, LDPC, channel coding chain SDRplatforms: Ettus USRP and GNU Radio for over-the-air prototyping Linux environment and Python / Bash scripting for toolchain automation Vitis HLS or OpenCL-based FPGA acceleration flows Publications in IEEE Photonics, IEEE Communications Letters, JOCN, or equivalent venuesResearch ProfileWe are open to two architect types: M.Tech or PhD with thesis in VLC, OWC, optical OFDM, or wireless channel modelling - research outputmatters more than years of industry experience Wireless PHY engineer from industry looking to move into R&D - trainable on the optical wireless domain ifthe PHY and FPGA fundamentals are strong