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I’m putting together a web-based tool that lets auto dealerships pounce on newly posted vehicles the moment they appear online. The first module I need built is a real-time alert engine focused solely on “New listings alerts.” Here’s the core flow I have in mind: the service works with online marketplaces as well as selected private-seller websites, detects any fresh listing that matches my simple criteria (make, model, year, mileage or price range), and immediately pushes a notification—email, SMS, or webhook—to the dealership’s CRM. Speed is everything; a delay of even a few minutes wipes out the advantage. Open to discuss strategy and tech stack Acceptance criteria • A rules screen (or config file) where I can add or edit search criteria without touching code • Sub-60-second average latency from listing appearance to alert delivery, demonstrated in testing • JSON webhook payload + human-readable email format • Dockerised repo with README covering setup and environment variables We might later expand to price-drop or competitor-action alerts, so structuring the code for easy future add-ons will be a plus. If this sounds like a fun sprint, let’s talk timing and milestones.
Project ID: 40388518
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49 freelancers are bidding on average $7,421 USD for this job

Hi, This is Elias from Miami. I checked your project description and understand you’re looking to build a web-based tool that helps auto dealerships quickly identify newly posted vehicles. I’ve worked on several similar platforms and understand the key technical challenges involved. I’d be happy to discuss the project and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – What specific user roles do you envision for the dealerships? – Q2 – Are there any existing systems you want to integrate with this tool? – Q3 – How do you plan to handle notifications for new listings? Looking forward to hearing from you.
$7,500 USD in 26 days
8.3
8.3

Hi Thanks for the invitation! I have strong experience building real-time monitoring and alerting systems that ingest listings from multiple sources, normalize the data, and trigger fast notifications through email, SMS, or webhooks. The main technical challenge here is keeping alert latency under 60 seconds while handling different marketplace structures, private-seller sites, and frequent content changes without making the scraper layer brittle. I would solve that with a modular crawler/connector architecture, a rules engine for make, model, year, mileage, and price filters, and an event-driven alert pipeline designed for fast matching and delivery. I can also build a simple rules screen or config-based admin layer so criteria can be updated without touching code, while keeping the webhook JSON and email outputs clean and consistent. The repo would be Dockerized, documented, and structured so future modules like price-drop or competitor-action alerts can be added without rewriting the core engine. Thanks, Hercules
$5,000 USD in 30 days
7.0
7.0

Hello, I can help you build a fast and straightforward alert engine that detects new vehicle listings across marketplaces and sends notifications in under a minute. I’ve worked with similar real‑time flows, so setting up clean rules, webhook payloads, and a Dockerised repo should be smooth. The structure will stay simple but flexible so you can expand into price‑drop or competitor alerts later without reworking the core. Thanks, Teo
$8,325 USD in 30 days
6.8
6.8

Hi there, I will build a real-time New-Listing Alert Engine that watches marketplaces and private-seller sites for matching make/model/year/mileage/price and delivers email, SMS, or webhook notifications with <60s average latency; my background in Docker, Python scraping, PHP/Node webhook endpoints and low-latency pipelines makes me a fit. - Implement ingest adapters (Python async scrapers + marketplace APIs) and a rules UI or JSON config to define make/model/year/mileage/price filters - Deliver a low-latency matching pipeline (Redis pub/sub or Kafka lite), immediate notifier (SMTP, Twilio SMS, webhook endpoint) and sample CRM webhook JSON + human-readable email templates - Dockerised repo, README with environment variables, and unit + integration tests for latency verification - Risk/quality-control: staged deployment with backup checkpoint and post-deploy validation tests to ensure <60s delivery Skills: ✅ Python ✅ Docker ✅ API Development ✅ MySQL ✅ Low-latency pipelines / Redis pub/sub ✅ SMTP / Twilio integration Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately. Is this already running on a live production server or do you want a staged rollout for testing? Best regards,
$5,000 USD in 7 days
6.1
6.1

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I recently developed a real-time alert system for a retail client that monitored online listings and pushed instant notifications to their CRM with delays under 30 seconds. The most crucial part to successfully complete this project is ensuring ultra-low latency and highly reliable real-time data extraction from diverse online sources. Approach: ⭕ I'll design a flexible, scalable alert engine using Python and JavaScript for efficient scraping and event detection. ⭕ Implement a user-friendly rules configuration screen to manage search criteria without coding. ⭕ Ensure sub-60-second latency by optimizing data pipelines and using asynchronous processing. ⭕ Containerize the app with Docker and provide clear setup documentation. ⭕ Develop JSON webhook and email alert systems aligned with your specs. ⭕ Architect the codebase to allow straightforward future expansions like price-drop alerts. ❓ Could you clarify which specific marketplaces and private-seller sites you want integrated first? ❓ Do you have a preferred tech stack for the frontend rules screen? ❓ What volume of listings per minute do you expect the system to handle? With my extensive experience in building real-time AI-driven SaaS products and scalable alert systems, I’m confident I can deliver a robust and fast solution that meets your exact needs. Looking forward to collaborating on this exciting project. Best regards, Nam
$8,000 USD in 40 days
5.4
5.4

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