Senior Web Developer – Investigate Location-Dependent Request Flow

Filled
February 26, 2026
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Job Description

Project Type: Short-term / Freelance
Location: Remote

Project Overview

We are seeking a senior-level web developer to analyze how our live website delivers different content to users in Germany versus other locations. This project focuses on tracing HTTP requests and understanding the underlying system architecture that drives geographic content delivery.

This is not a UI comparison or source code replication task. The goal is to understand, document, and reproduce the behavior safely in a separate environment.

Responsibilities

  • Analyze live website traffic and HTTP requests to determine geographic-based content delivery
  • Identify where the location decision is made: CDN, backend, or client-side
  • Determine what signals (IP, headers, cookies, etc.) are used to classify traffic
  • Trace the request lifecycle to pinpoint when routing occurs
  • Provide a clear explanation of the mechanism and workflow
  • Recommend a high-level, safe approach to replicate the behavior in a separate environment

Requirements

  • Proven experience in web system architecture, HTTP request flow, and debugging network traffic
  • Strong knowledge of CDNs, caching strategies, geolocation routing, and backend request handling
  • Ability to reason about complex systems and document findings clearly
  • Experience with tools like Wireshark, Chrome DevTools, Postman, curl, or similar network analysis utilities
  • Excellent communication skills for reporting technical insights

Deliverables

  1. Detailed analysis of how geographic content differentiation works
  2. High-level strategy for reproducing the same behavior in a separate environment
  3. Optional recommendations for testing or monitoring location-dependent behavior