Bridging the gap between Support, Engineering, and Spatial Data.

Hi, I'm Daniel. I help enterprise teams scale, solve complex platform issues, and build accessible geospatial tools.

Daniel Tierney

What I Do

Enterprise Support

Stakeholder Management Incident Leadership Technical Guidance Cross-functional Collab

Technical

REST/GraphQL APIs Webhooks OAuth Splunk/Observe SQL DNS/SSL

Development

Node.js Python HTML/CSS iOS (Swift) R / Shiny

Geospatial

ArcGIS Pro / QGIS GeoPandas & Shapely Leaflet / Folium Spatial Analysis Raster Processing

Journey

Oct 2024 – Present

Developer Support Specialist

Shopify (Remote)

Technical point of contact for merchants/partners. I diagnose complex API/webhook issues and build documentation to scale team knowledge.

Sept 2021 – Oct 2024

Senior Enterprise Support Specialist

Shopify (Remote)

Led deep-dive troubleshooting for enterprise merchants using Splunk and SQL. Partnered with Engineering to resolve platform defects.

May 2021 – Sept 2021

Plus Support Specialist

Shopify (Remote)

Supported high-volume merchants with critical operational advice.

Jan 2019 – Mar 2021

Google Workspace Specialist

TELUS International (Cork)

Use-case consulting, security advice, and fraud escalation for Google Workspace customers.

Projects

Ardmore 1926 Census

Historical census explorer

A TypeScript and Leaflet site for exploring Ardmore and Grange in the 1926 Census through households, surnames, townlands, maps, and local language statistics.

View Project →

TextHarvester

Historic Graves digitisation

A full-stack workflow (Node/Express + iOS) for digitising historic records using OCR/HWR pipelines.

View Project →

Water Level Monitor

Community Dashboard

Real-time dashboard for local river levels to aid community awareness during flood risks.

View Project →

Cork City Housing Analysis

R / Shiny Dashboard

Interactive analysis of Cork City property market trends using data from the Property Price Register and Inside Airbnb.

View Project →

Education

Postgraduate Diploma in GIS

University College Cork

First Class Honours (2025)

Spatial & Raster Analysis

Proficient in buffer analysis, spatial joins, and point aggregations. Experienced in NDVI calculations, terrain modeling, and multi-band composites using ArcGIS Spatial Analyst and QGIS.

Geoprocessing & Automation

Automating workflows (geocoding, coordinate transformations) using Python. Expert in libraries like GeoPandas, Shapely, Fiona, and GDAL.

Visualization

Designing static maps in ArcGIS Pro/QGIS and building interactive dashboards with Leaflet, Folium, and leafmap.

Data & Tools

Skilled in cleaning and integrating spatial datasets (CSVs, Shapefiles, GeoJSON, Raster). Managing projections and coordinate reference systems (CRS).

BA International

University College Cork

Hons 2.1 (2017)