ERPNext Developer (Self-Hosted Setup + Custom Modules + SMS Integration)

We are looking for an experienced ERPNext / Frappe Developer to work on a long-term project involving system deployment, customization, and development of specialized business modules. 🧩 Project Scope: 🔹 1. ERPNext Installation & Setup Install and configure ERPNext on a self-hosted VPS / dedicated server Ensure full production-ready deployment (Docker or Bench setup) Optimize performance and security settings 🔹 2. Arabic Localization Enhancement Improve and structure the Arabic translation files Ensure full Arabic UI support (professional-level localization) Fix incomplete or inconsistent translations across modules 🔹 3. Custom Generator Management Module Develop a custom module for electric generator management, including: Generator registration and tracking Periodic meter readings input Consumption calculation Linking consumption with billing system Automatic invoice generation based on usage Integration with ERPNext Accounting & Billing system is required. 🔹 4. SMS Gateway Integration System Integrate ERPNext with external SMS provider (SMS Gateway API) Build a UI inside ERPNext to: Send individual SMS messages Send bulk SMS campaigns Auto-send notifications (invoices, payment reminders, alerts) 🛠️ Required Skills: Strong experience with Frappe Framework and ERPNext customization Python & JavaScript proficiency Experience building custom apps/modules in ERPNext API integration experience (especially SMS gateways) Understanding of accounting and billing workflows Experience with Linux servers, Docker, or VPS deployment ⭐ Nice to Have: Experience in utility billing systems or energy/generator management Multi-company / multi-branch ERP systems Advanced Arabic UI/UX localization experience Here is a clear and professional English explanation of the generator (electricity) management system module for ERPNext: ⚡ Generator Management & Electricity Billing System (ERPNext Custom Module) This module is a custom utility billing system built on top of ERPNext. It is designed to manage generators, track energy consumption, and automatically generate invoices based on usage. 🧩 1. Core Idea The system works like a utility billing platform (electricity/water style billing) but applied to electric generators. 👉 It records generator usage 👉 Calculates consumption 👉 Converts usage into financial cost 👉 Generates automatic invoices linked to accounting 🏭 2. Generator Management (Master Data) Each generator is registered in the system with: Generator ID / Code Location (branch / site) Capacity (KVA) Cost per kWh or running hour Operational status Installation date 📌 This acts as the main asset/operational unit. 📊 3. Meter Readings (Usage Tracking) Periodic readings are entered into the system: Reading date Previous reading Current reading Total consumption (calculated automatically) Linked generator 📌 Formula used: Consumption = Current Reading − Previous Reading 🔢 4. Consumption Calculation Engine The system automatically processes usage data: Calculates total consumption per generator Aggregates usage per customer or site Applies pricing rules (fixed or variable rates) Example: Rate = 1.2 ILS per kWh Consumption = 500 kWh Total cost = 600 ILS 💰 5. Billing System (Invoice Generation) This is the core financial module. The system: Automatically generates invoices based on consumption Links invoices to ERPNext accounting system Posts entries to Accounts Receivable Generates PDF invoices for customers Integrated with: Sales Invoice module General Ledger Customer Accounts 🔗 6. Customer Linking & Allocation Generators can be linked to: A single customer Multiple customers (shared usage) Sub-meter allocations (split billing) Example: A building powered by one generator: 10 apartments share consumption Usage can be divided by ratio or sub-meters 📈 7. Reports & Analytics The system provides detailed reports such as: Monthly consumption per generator Cost of operation Profitability analysis Customer consumption ranking Unpaid invoices tracking 🔄 8. Workflow Summary Register generator Enter periodic readings System calculates consumption Apply pricing rules Generate invoice automatically Send invoice to customer (SMS/email optional) Record payment in accounting system 🧠 9. Technical Implementation in ERPNext The module will be developed as a custom Frappe application with DocTypes such as: Generator Meter Reading Consumption Record Utility Invoice Fully integrated with: Customer module Accounting module Sales Invoice system 🚀 10. Advanced Features (Optional Enhancements) Tiered pricing (consumption slabs) Fixed monthly charges Late payment penalties Remote monitoring integration (IoT meters) Automated SMS notifications for bills and alerts 💡 Summary This module transforms ERPNext into a complete utility billing system, enabling full management of generator-based electricity distribution, consumption tracking, and automated invoicing within a fully integrated ERP environment.