Senior Python Developer

24 hours ago

Remote, India Independent Skill Development Mission - ISDM kolkata Full time ₹ 2,40,000 - ₹ 4,80,000 per year

Python Developer (Audio/Video DSP & Desktop Applications)

Position: Senior Python DSP Developer

Engagement: 3–4 months (Project-based, contract under NDA)

Location: Remote / Flexible

Start Date: Immediate / within 15 days

Budget: Fixed milestone-based payments

About the Role

We need a Python DSP expert to design the synchronization engine and help integrate it with a PySide6 desktop app.

Responsibilities

  • Design & implement core audio/video synchronization algorithms:
  • Cross-correlation, Dynamic Time Warping (DTW), drift correction.
  • Preprocess audio: resampling, normalization, silence/VAD detection.
  • Feature extraction: MFCC, spectral flux, onset strength.
  • Work with FFmpeg to handle demuxing, decoding, resampling.
  • Build & integrate with PySide6 UI (waveform/timeline preview).
  • Implement export formats (CSV, EDL, FCPXML).
  • Optimize performance (NumPy, SciPy, Numba/Cython, multi-threading).
  • Write unit/regression tests on sample datasets (clean & noisy).
  • Package final desktop app for Windows (.exe) and macOS (.dmg).

Required Skills

  • Strong Python 3 development (4+ years).
  • Deep knowledge of audio signal processing.
  • NumPy, SciPy, librosa, and familiarity with STFT/FFT.
  • FFmpeg (CLI + Python integration).
  • Experience with PySide6/PyQt desktop apps.
  • Performance profiling, optimization.
  • Git/GitHub, CI/CD familiarity.

Nice-to-Have

  • Export formats: FCPXML, EDL.
  • Knowledge of BWF/iXML metadata.
  • Cross-platform app packaging (PyInstaller).
  • Previous experience in video editing / media software.

Job Type: Full-time

Pay: ₹20, ₹40,000.00 per month

Benefits:

  • Work from home

Work Location: Remote

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