Digital Signal Processing Engineer

Role Overview Experience: 3 - 8 years Domain: Defence | Aerospace | Satellites | Software Defined Radio (SDR) | RF | Communications | ELINT / SIGINT We are seeking a Digital Signal Processing (DSP) Engineer to design, simulate, and implement advanced signal-processing algorithms and real-time DSP systems for next-generation defence and aerospace applications. You will take algorithms from mathematical concepts through MATLAB/Python modeling and validation to fixed-point, real-time deployment on FPGA, DSP, and embedded platforms.

Key

Responsibilities Algorithm Design & Simulation: Develop and model DSP algorithms for digital communications, RF, ELINT, SIGINT, and SDR applications using MATLAB/Simulink and Python (NumPy/SciPy). Waveform & Modulation Processing: Design modulation/demodulation schemes (BPSK, QPSK, OQPSK, FSK, MSK, GMSK, QAM, DVB-S2, CPM) along with carrier/symbol synchronization, timing recovery, matched filtering, and channel estimation. Real-Time Hardware Deployment: Convert floating-point models to fixed-point, bit-accurate implementations and deploy algorithms on FPGA, DSP, and embedded processors. ELINT/SIGINT & SDR Development: Build communication receivers/transmitters and develop signal detection, parameter extraction, and spectrum analysis algorithms. System Integration & Testing: Interface DSP algorithms with RF front-ends, ADCs/DACs, and SDRs. Perform hardware-in-the-loop validation using spectrum analyzers, oscilloscopes, VSAs, and logic analyzers. Cross-Functional Collaboration: Work alongside RF, FPGA, embedded software, and systems engineers to deliver high-performance products.

Required Skills Core DSP & Communications: Strong foundation in DSP fundamentals, digital communications, sampling theory, Fourier transforms, filtering, correlation, and spectral analysis. Simulation & Programming: Proficiency in MATLAB and/or Python for algorithm design; programming knowledge in Python, C, or C++. RF & SDR Architectures: Solid understanding of RF signal chains, SDR architectures, and complex I/Q data processing. Technical Problem Solving: Proven ability to implement algorithms derived from IEEE papers, communication standards, and technical specifications. Preferred Skills FPGA DSP Development: Hands-on experience with FPGA platforms (Xilinx/AMD, Intel/Altera, Xilinx RFSoC) using RTL or High-Level Synthesis (HLS). Intelligence & Radar Systems: Background in ELINT, SIGINT, COMINT, EW, radar signal processing, or direction finding (DOA/AOA). Advanced Waveforms & Coding: Familiarity with FEC coding (LDPC, Turbo, Reed-Solomon), OFDM, spread spectrum (DSSS/FHSS), and anti-jamming techniques. Test & Measurement: Hands-on experience with RF test equipment, IQ data capture, and hardware-in-the-loop testing. Experience/Qualifications: B.E./Diploma in Electronics/Telecommunication, Electrical and Electronics, Aviation, Information Technology, Computers, Electrical