Digital Map Developer – Excel Data Integration & Large-Scale Mapping Placement of Unique Excel Row Entries
Overview:
We are seeking an experienced Digital Map Developer / GIS Engineer to design and implement a custom interactive digital map capable of dynamically populating and displaying 100,000+ individual data points from Excel spreadsheet uploads. The ideal candidate will have strong experience with geospatial data visualization, database integration, and web mapping technologies such as Google Maps API, Mapbox, or Leaflet.js.
This project will result in a web-based digital map that allows users to easily upload Excel spreadsheets containing personal location data, automatically geocode each entry, and display interactive map markers that reveal unique details about each person when clicked.
Key Responsibilities:
Design and Develop Interactive Map Interface
Create a high-performance, web-based interactive map capable of displaying 100,000+ unique location markers.
Ensure fast rendering, smooth navigation, and efficient clustering for large datasets.
Excel Data Upload & Integration
Build functionality for users to easily upload Excel spreadsheets (.xlsx or .csv).
Automatically parse and import each record’s address or location information (full address, city + state, or city + state + ZIP).
Ensure each row from the spreadsheet is represented as one map marker.
Automated Geocoding System
Integrate a reliable geocoding API (e.g., Google Maps Geocoding API, Mapbox Geocoding, OpenCage, etc.) to convert address data into precise latitude/longitude coordinates.
Optimize geocoding processes to handle large-scale imports efficiently.
Interactive Marker Details
Enable users to click any marker to view detailed information pulled directly from the spreadsheet’s additional columns.
Information should appear in a clean, organized popup or sidebar layout.
Performance Optimization
Implement clustering, lazy loading, or tile-based rendering to maintain speed and responsiveness with large data volumes (100,000+ markers).
Optimize map loading and search/filter performance.
Administrative & User Tools
Develop an intuitive admin dashboard for managing data uploads, reviewing geocoding results, and updating existing datasets.
Provide options to filter, search, or categorize map data by key fields from the spreadsheet.
Required Skills & Qualifications:
Strong experience with web mapping libraries and APIs:
Back-End Development Expertise:
Node.js, Python (Flask/Django), or PHP for handling file uploads, data parsing, and API integration.
Front-End Development Skills:
Database Management:
Data Handling & Automation:
Geocoding & GIS Knowledge:
Performance Tuning:
Preferred Qualifications:
Experience developing scalable map-based dashboards or analytics platforms.
Familiarity with hosting solutions like AWS, Google Cloud, or Azure for scalable map deployments.
Previous work on projects integrating user-uploaded data with live maps.
Ability to implement security best practices for data upload and API usage.
Deliverables:
Fully functional web-based map interface accessible via browser.
Secure Excel upload function with validation and automated geocoding.
Ability to display 100,000+ unique markers without significant lag.
Interactive popups showing person-specific data pulled from uploaded spreadsheets.
Admin panel for managing datasets and monitoring geocoding status.
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