Freelance GIS cartographer · remote or in West Africa

Reliable field data and maps for humanitarian and development programmes

Mobile data collection with KoboToolbox and ODK, access-to-services maps, OpenStreetMap and training for local teams, in English, French, Fula or Wolof.

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Map of the Gaston Berger University campus in Saint-Louis, Senegal: residence villages, faculties, lecture halls, sports grounds and footpaths, with named places
Gaston Berger University campus, Saint-Louis, Senegal, 2026: drone orthophoto, QGIS digitising and an offline web map. How it was made

What I do for NGOs

For NGOs, UN agencies and research institutes: health, water, education or research projects that need reliable field data and maps their teams can read.

Mobile data collection

KoboToolbox, ODK Collect or Survey123 forms: design, geolocation, enumerator instructions, quality control and a clean export.

Access-to-services maps

Health, education, water: distance to facilities, road accessibility and a multi-criteria synthesis to find poorly served areas.

OpenStreetMap

Collaborative mapping projects on Tasking Manager, validation of contributions in JOSM, mapathons.

Training for local teams

QGIS, OpenStreetMap and mobile data collection, hands-on, for field teams and local technicians, on site or online.

See the full NGO offer

Field projects

  • Saint-Louis, Senegal · self-initiated, 2026

    Gaston Berger University campus map

    3,199 drone photos turned into a 3 cm orthophoto, 257 buildings and 30 km of footpaths digitised in QGIS, 150 named places, and walking directions that work offline on a phone. Open the map

  • Saint-Louis, Senegal · with CartONG and OSM Senegal

    Health facilities of the Saint-Louis department

    GPS and ODK Collect survey of every health facility in the department, then integration into OpenStreetMap and Healthsites.io.

  • Mali, Burkina Faso, Côte d'Ivoire · ENDA Santé, 2022

    Health districts of the SKBo cross-border area

    Survey123 forms, a collaborative GIS on ArcGIS Online and about fifteen maps of districts and health facilities across three countries.

  • Kolda region, Senegal · university project

    Access to healthcare in the Kolda region

    Five thematic maps: distance to health centres, road accessibility, a multi-criteria synthesis and zooms on critical areas.

All case studies

Working with you

You deal directly with Ibrahima Sory Diallo, the person who produces your maps.

Where
Remotely; field presence in West Africa or Europe is decided with you, project by project
Languages
English or French for reports, training and headquarters; Fula and Wolof with field teams
Your data
Used for the project only, never published without your written consent
Terms
€400 per day · reply within 24 business hours · quote within 3 business days
Read the full profile

Also for

I also work for French local authorities and for fibre network engineering firms.

Municipalities, inter-municipal bodies, joint syndicates

Local authorities in France

  • Maps for municipal emergency plans (PCS, PICS)
  • Local address base, checked and published
  • Flood exposure and municipal atlases
See the local authorities offer

Engineering firms, integrators, subcontractors

FTTH engineering firms

  • FTTx deployment and construction plans
  • BPE splicing plans and connection database
  • Audit and update of GIS network databases
See the FTTH offer

A project, a survey, a team to train?

Describe what you need, in English or French: reply within 24 business hours, quote within 3 business days.

Request a quote