Python Backend Developer – Batch Analytics & Scoring System (CSV / PostgreSQL)
Project Description
I am looking for an experienced Python backend developer to implement a batch analytics and scoring system that processes large CSV datasets, applies deterministic scoring logic, stores historical results, and outputs structured CSV reports.
This is not a machine learning project and not a real-time system.
The scoring logic already exists and is finalized in a working Google Sheets prototype. The task is to port this logic into a scalable backend implementation.
What the system will do
Ingest large CSV files (≈500k users per run, plus reference datasets)
Apply predefined per-user and per-feature scoring logic
Store results and historical snapshots in PostgreSQL
Output clean CSV files with:
final scores
per-feature contributions
Allow inspection of individual users (e.g. retrieve per-feature contributions and past snapshots)
Technical requirements
Strong Python skills
Experience with pandas / numpy for large batch processing
PostgreSQL (schema design, bulk inserts, indexing)
Writing deterministic, well-structured, testable code
Comfortable handling large CSV files efficiently Show More
This is not a machine learning project and not a real-time system.
The scoring logic already exists and is finalized in a working Google Sheets prototype. The task is to port this logic into a scalable backend implementation.
What the system will do
Ingest large CSV files (≈500k users per run, plus reference datasets)
Apply predefined per-user and per-feature scoring logic
Store results and historical snapshots in PostgreSQL
Output clean CSV files with:
final scores
per-feature contributions
Allow inspection of individual users (e.g. retrieve per-feature contributions and past snapshots)
Technical requirements
Strong Python skills
Experience with pandas / numpy for large batch processing
PostgreSQL (schema design, bulk inserts, indexing)
Writing deterministic, well-structured, testable code
Comfortable handling large CSV files efficiently Show More
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Budget
$1,500 - $2,250
Client Info
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Project Summary
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Status
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Category
Software Development
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Project Type
Fixed Price
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Budget
$1,500 - $2,250
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Date Posted
2 months ago
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Project ID
2399
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Project Views
358
