Signal Processing Engineer

Senior Signal Processing Engineer (PhD) – Advanced Sensing SystemsLocation: PuneEmployment Type: Full-timeAbout the RoleAltair is seeking a highly experienced Signal Processing Engineer with a Doctoral Degree to join our advanced sensing R&D initiatives. Our programs involve sophisticated, multi-sensor systems for object detection, classification, and high-accuracy positioning. The role requires deep expertise in both classical and modern signal processing techniques, with applications across underwater sensing and vision-based positioning systems.This is a senior, impact-heavy role suited for someone who has extensive hands-on experience building, optimizing, and deploying signal processing algorithms in real-world environments.Key Responsibilities- Lead the development and refinement of algorithms for detection, recognition, and classification based on acoustic and optical sensor data. - Apply advanced methods such as LOFAR, DEMON, STFT, and related spectral analysis techniques to real-world datasets. - Architect robust pipelines for time–frequency analysis, noise reduction, feature extraction, and statistical modeling. - Optimize algorithms for real-time or near–real-time performance on embedded and edge-compute platforms. - Support parallel R&D efforts in vision-based positioning through signal-level operations such as threshold optimization, centroiding, denoising, and precision measurement. - Mentor junior engineers and guide technical decisions across multidisciplinary teams. - Lead field experiments, evaluate performance under varied environmental conditions, and drive improvements based on empirical results. - Produce high-quality documentation, technical reports, and algorithm specifications.Required Skills & Qualifications- PhD (Doctoral Degree) in Signal Processing, Acoustics, Applied Physics, Electrical Engineering, or a closely related field. - 5–12+ years of hands-on experience in advanced signal processing R&D. - Proven expertise in underwater-domain processing techniques including: - LOFAR (Low Frequency Analysis & Recording) - DEMON (Detection of Envelope Modulation On Noise) - STFT (Short-Time Fourier Transform) - Spectral estimation, beamforming, matched filtering, parametric modeling, etc. - Strong proficiency in scientific programming (Python, MATLAB, C, C++, NumPy/SciPy). - Extensive experience with noisy, low-SNR data and real-world sensor imperfections. - Strong mathematical foundation in Fourier analysis, estimation theory, statistical signal processing, and detection theory. - Demonstrated ability to take algorithms from concept → prototype → validated deployment-ready implementation. - Excellent communication skills and ability to lead complex technical problem-solving.Preferred Qualifications- Experience with underwater acoustics, passive/active sonar, or related sensing modalities. - Background in image-domain signal processing, centroiding, threshold optimization, or feature localization. - Experience working with multidisciplinary teams (optics, embedded, mechanical, AI/ML). - Prior involvement in transitioning laboratory algorithms into robust field-ready systems.Who We're Looking ForA seasoned expert who combines deep theoretical knowledge with strong practical engineering instincts. Someone comfortable leading algorithmic design, mentoring teams, and solving challenging problems across multiple sensing domains. A person who thrives in high-end R&D environments where rigor, innovation, and scientific clarity matter.

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