Valce Talent Solutions

Data Science / Machine Learning

Python

Data Science / Machine Learning

We have an urgent requirement for a Data Scientist, preferably with Space Tech experience but not mandatory.#

Data Scientist preferably with specialization in Geospatial / Remote Sensing

Required

  1. -7+ years applied data science / ML, with hands-on geospatial remote sensing.
  1. Strong Python: numpy, rasterio/GDAL, xarray, scikit-image, geopandas/shapely.
  1. Working knowledge of optical and SAR data (spectral indices, backscatter/dB, resolution trade-offs, revisit).
  1. Deep learning with PyTorch; experience fine-tuning models (transfer learning, LoRA/PEFT).
  1. Model validation and calibration: ROC/AUC, thresholding, cross-validation, handling weak/few
  1. labels.- Time-series / change-detection methods and coordinate reference systems (UTM, reprojection).

Qualifications

  1. MSc/PhD in Remote Sensing, Geospatial Science, Earth Observation, CS/ML, Physics, or equivalent experience

ADVANCED ENGLISH

About the role

We are building a satellite-based early-warning system that detects wind-driven sand encroachment and pipeline displacement across a desert pipeline network, using Sentinel-1 (SAR) and Sentinel-2 (optical) imagery, foundation models, and physical dune-migration modelling. You will own the detection and calibration science: turning raw satellite passes into calibrated, validated alerts against real field-logged events.

What you will do -

  1. Build and calibrate change-detection and anomaly models on multi-temporal Sentinel-1/2 imagery over pipeline corridors.
  1. Learn per-site """"normal terrain"""" baselines and validate detections against a ground-truth event log (detection rate, lead time, false-positive rate, AUC).
  1. Fine-tune geospatial foundation models (Prithvi-EO / similar) with LoRA/PEFT on limited labelled data.
  1. Implement SAR techniques for displacement: amplitude change, coherence, and pixel-offset tracking to measure pipe and dune movement.
  1. Develop dune-migration tracking (optical flow / feature tracking), migration direction, and mobility indices. -
  1. Engineer robust ingestion from Copernicus (CDSE / Sentinel Hub / STAC) and fuse optical, SAR, DEM, and ERA5 wind data. -
  1. Design labelling strategy (encroachment masks, severity) and a train/validation split that avoids leakage. -
  1. Communicate results and limitations honestly to technical and business stakeholders.

Nice to have

  1. InSAR / SAR offset tracking (SNAP, ISCE, or equivalent) for surface/structure displacement.
  1. Geospatial foundation models (Prithvi-EO, TerraTorch, HLS) and segmentation.
  1. Copernicus/CDSE, Sentinel Hub, STAC, Planetary Computer.
  1. Aeolian geomorphology / dune dynamics; oil & gas or pipeline-integrity domain exposure.
  1. MLOps and cloud (containerisation, scheduled inference, geospatial data pipelines).

REMOTE

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