PostgreSQL Jobs

Overview: We are seeking an experienced full-stack developer or agency to build an AI-powered OCR Challan Processing & Automated Billing System. The solution will automatically read uploaded challan images/PDFs, extract relevant data, group them shop-wise, and trigger automatic PDF invoice generation once a shop reaches 200 processed challans. Key Features & Modules: Authentication: Secure user login with JWT and password protection. OCR & AI Extraction: Extract Shop Name, Challan Number, Product Details, Quantity, and Date using Google Vision API (or equivalent). Includes AI validation and duplicate detection. Shop-wise Segregation & Counter: Separate challans by customer/shop and automatically track count (e.g., 198 → 199 → 200). Automated Invoicing: Auto-g...

I run several production workloads in AWS here in Singapore and need a partner who can jump in any time—day or night—without the lag a distant time zone creates. Fast, reliable WhatsApp communication is non-negotiable; that is how my team escalates issues and approves changes. Core stack you will care for: • EC2 instances that host our main applications • S3 storage buckets for static assets and backups • RDS databases (primarily MySQL / PostgreSQL) We also lean on Elastic Load Balancing, IAM, and Shield/WAF, so familiarity with those services is important. Beyond break-fix help, I’m looking for proactive value: • Consultation on architecture and cost-/performance best practices • Regular system-health monitoring with early-warning alert...

I need a developer who can jump straight into the code-base and tighten the connection between the site and our central PostgreSQL/MySQL database. The immediate focus is to: • Debug the login-time and redirect-time ad settings that occasionally mis-fire. • Wire up banner, video and interstitial ads so they display and track correctly. • Complete the remaining API endpoints that link the website to the central database, then write clear, developer-friendly documentation for them. • Refactor the existing Java and PHP code so the new API calls, wallet functions, recharge/payment gateway, subscription package management, CRM member tools, and illegal short-link controls run smoothly from the same backend interface. To succeed you’ll need solid PostgreSQL an...

Build & Deliver RTIQA v1 — Global Multi-Tenant EdTech Platform RTIQA is a large, long-term project aimed at building an impactful global EdTech SaaS platform combining: - School Management System (SIS) - Learning Management System (LMS) - Student Information Management - Parent Engagement - Secure Assessments and Academic Records - Certificates and Verification with Public Verification Pages - Notifications and Communication - Practical AI-Powered Educational Assistance Tools This is a full engineering challenge focused on delivering ONE complete and production-ready outcome. The successful freelancer or team will review the existing repositories, analyze the architecture, consolidate or refactor as necessary, and take RTIQA from its current work-in-progress state to a secure, ...

Statement of Work (SOW): Parking Agent MVP Development ## 1. Project Overview & Objective Parking Agent is an app-less, privacy-first QR vehicle communication platform. The objective of this project is to build an Minimum Viable Product (MVP) consisting of a pre-generated QR inventory system, a secure mobile web interface for vehicle owners and scanners, automated OTP/notification routing, and a basic administrative management panel. --- ## 2. Technical Stack & Requirements (Recommended) * **Backend Framework:** Node.js (Express/NestJS) OR Python (FastAPI/Django) * **Database:** PostgreSQL (Relational database for structured QR mapping and vehicle relationships) * **Caching/Session:** Redis (For OTP storage, rate-limiting, and short-term link verification) * **Frontend:** React....

## Custom Suit Designer & E-Commerce Website Development I am looking for an experienced **full-stack web developer** to develop a modern custom clothing e-commerce website with an interactive **custom suit personalization system**, similar in concept to the customization experience offered by Hockerty. ### Project Overview The website should allow customers to design and customize their own suits online through an intuitive, step-by-step interface. Customers should be able to select different suit styles, fabrics, colors, patterns, fits, and other customization options and see their selections reflected visually. ### Key Features **1. Interactive Suit Customizer** * Suit/jacket style selection * Fabric selection * Fabric colors and patterns * Lapel style * Buttons and but...

Project Overview: We are looking for an elite Full-Stack / Mobile Developer to build AFRIMATI-COMMERCE, an innovative B2B transactional marketplace connecting agricultural producers and livestock farmers directly with bulk buyers, processors, and exporters. Our mission is to build a seamless human and economic synergy (osmose) that cuts out destructive middlemen and empowers rural producers. The Deliverable: • 2 Native Mobile Applications (Android & iOS) built with a unified framework (React Native or Flutter). • A robust backend API powered by NestJS (Node.js) with a PostgreSQL database. Key Functional Scope: • Wholesale B2B Only: Designed strictly for bulk quantities (metric tons, 100kg bags, livestock herds). No retail. • Secure Escrow System: Critical integrat...

I need a clean, well-structured Django application that works as a dedicated content management system for product listings. The core of the job is to let me create, edit, and retire products easily from an admin dashboard while the public site instantly reflects every change. Key capabilities I must have • Inventory management – automatic stock tracking, low-stock alerts, and a simple bulk-update screen. • Product categorization – nested categories, drag-and-drop reordering, and URL slugs that honor the hierarchy. • Advanced search – fast, faceted search across titles, descriptions, tags, and category names (Elasticsearch or PostgreSQL full-text search is fine). I’m already comfortable deploying on a typical Linux/Nginx/PostgreSQL stack, so t...

Title: AI-Powered Price-Discovery Web & Multi-Module Mobile App Deployment (Indian Agency Only) Project Description: We are launching , an innovative AI-powered price-discovery and consumer utility ecosystem based in Delhi. We are seeking a registered Indian Software Development Company with an established, verified in-house team to deliver our Phase 1 infrastructure: a responsive Web portal, an Android App, and an iOS App. The core system architecture and functional flow of this project are modeled after established Indian shopping utility and AI-driven comparison engines, specifically Smartprix, (Kompare AI), and Buyhatke. The selected development company must analyze these benchmark applications to understand our required structural baseline. Core Project Scope Elements: - Cent...

Necesito desarrollar una API robusta en .NET 9 o superior que automatice por completo la emisión de documentos tributarios electrónicos (DTE) para el Servicio de Impuestos Internos (SII) de Chile. Alcance funcional • Generación XML de cada DTE. • Firma electrónica avanzada (FEA) incorporando certificado digital. • Envío masivo o individual al SII y recepción del acuse. • Consulta de estado y almacenamiento de track id. • Registro de respuestas del SII para auditoría interna. • Endpoints protegidos con autenticación JWT. Tipos de DTE que debo cubrir • Facturas • Notas de crédito • Notas de débito • Boletas Requisitos técnicos * .NET 9+, C#, ...

Our eKYC platform is live, but the two-factor authentication built into the public weblink is failing consistently. Users receive the OTP/SMS push, enter the code, and the process stalls with a generic “authentication error” before redirecting them back to the login page. Server logs show no obvious stack trace, so I need someone to dig in, reproduce the fault, and patch it without disrupting the rest of the flow. What I know so far • Front-end: React single-page component that posts to a Node/Express API • Auth layer: JWT for the first factor, OTP via Twilio for the second • Database: PostgreSQL 14 • Error appears only in production, not in our staging environment Your job 1. Trace the call from the React form through the Express middleware to p...

I have several structured Excel sheets that hold our current service records. I need every row from those files accurately entered into our live service database, preserving all field relationships and ensuring there are no duplicates. You may work directly in the database interface or prepare a clean CSV/SQL file for me to review before we import—whichever is faster for you while still keeping the data intact. The key for me is accuracy and consistency: each service line in the spreadsheet must map to the correct table and column, and any reference keys need to stay usable once the data is inside the system. After you finish, please run a quick spot-check with me so we can confirm totals and sample entries match what’s in the spreadsheet. Let me know: • the database pla...

I need an experienced Full Stack Developer to build a large-scale multi-tenant SaaS platform called CareerZ. It is a global education, jobs, tutoring, marketplace and payments platform. Key modules include LMS (courses, classes, exams), Institutions management, Job board, Tutoring system, Marketplace, Digital Wallet, Scholarships, Messaging, AI features, and complete Admin panel with role-based access. Looking for someone who has built similar complex multi-sided platforms before.

Customize Your Existing AI/Web Pipeline for Autonomous Vendure Debugging Hello, We are looking for an engineer with Vendure or a closely related Node.js/TypeScript e-commerce background to adapt the AI programming, website-debugging, testing, or automation pipeline you already use into a fully automated debugging, testing, and delivery-verification pipeline for a Vendure storefront. You do not need to invent a new framework from scratch: if you have a pipeline you already use for your own projects, you may fine-tune it, assemble it with other components, or replace our suggested components. We already have a working pipeline prototype and a basic engineering foundation. The current design uses CAO as the coordination and supervision layer, OpenHands or CrewAI as bounded code-execution a...

We're looking to shortlist an experienced full-stack developer to help us finish and refine an existing peer-to-peer equipment rental marketplace. The platform is already well developed, so this isn't a build from scratch. The remaining work is mainly finalising functionality, fixing smaller issues, cleaning up technical debt and polishing the overall user experience before launch. There's no immediate start or rush. Right now, we're looking to find a few strong candidates who we can speak with properly when the time is right. Tech Stack Ionic React NestJS PostgreSQL Strong experience with this stack is important, as you'll be working within an existing codebase. What Still Needs Doing We've organised the remaining work with screenshots and clear dot-poi...

Project Title: E-Commerce Web Application – Fadi's Bites Overview: I have designed and developed the frontend for Fadi's Bites, a modern e-commerce web application built for a ready-to-cook snack brand. I am looking for a developer to help integrate full backend functionality, authentication, and payment processing. Current Stack & Features Implemented: Framework: (App Router) & TypeScript Styling: Tailwind CSS + custom UI components Pages Built: Hero landing page, dynamic product menu, category filters, customer reviews section, and blog layout. Tasks Needed: Database & API: Set up Prisma ORM with PostgreSQL/MongoDB to handle dynamic product inventories and order management. Cart & Checkout: Integrate a persistent cart system and Stripe payment ga...

I’m ready to move from sketches to a working, production-ready Grocery Management application that runs smoothly on Android devices and in any modern web browser. Here is the core scope: • Users must be able to register, sign in and manage their own data, so please include a secure account system with email/password (social login is a plus but optional). • The heart of the product is a dynamic shopping-list creator. Items can be added manually or through real-time barcode scanning—on Android via the camera and on web via webcam or manual barcode entry. • After items are saved, the app should suggest recipes that intelligently use what’s already on hand; a simple rule-based engine is fine to start, as long as the data model keeps the door open for f...

CANONICAL DATA MODEL Hello, What caught my attention in your project is that the real problem is not simply completing missing features. You already have a product. The challenge is that several parts of that product are beginning to behave as independent systems when they should be operating from the same source of truth. SipVault, the Document Hub, and Form Configuration should not merely exchange data. They should share a coherent domain model. That is where I would begin. Before changing production behavior, I would inspect the current React / TypeScript / Node.js / PostgreSQL implementation, map the existing entities and relationships, identify duplicated or conflicting models, and define the canonical structure that the rest of the application should depend on. From there, the...

Freelance Developer Needed to Finish Existing Marketplace App — Velza I’m looking for an experienced developer to help finish and prepare an existing web app called Velza for launch. Velza is an Australian marketplace connecting customers with tradies and service providers. The core app, design direction and business model have already been developed. I am not looking for someone to start again from scratch — I need someone who can review the existing codebase, understand how the platform works, finish the remaining functionality, fix any issues, test everything properly and get it production-ready. The app currently uses a modern React/TypeScript-based stack with Supabase/database integration and is being prepared for production deployment. The main areas that need t...

Full-Stack Property Management, CRM, Marketplace & Field Operations Platform We are looking for an experienced senior full-stack developer or small product engineering team to build a complete, production-grade property management operating system for an Indian real-estate/property-management company. This is not a simple website or admin panel. The requirement is for an integrated SaaS-style platform combining a public property marketplace, CRM, property-management operations, customer portals, field operations, finance workflows and employee/HR functions within a single system. Core Product Scope The system should have four interconnected application surfaces sharing one central backend: 1. Public Website + Property Marketplace SEO-optimized responsive website, city/locality lan...

I’m building an online directory similar to and need an automated pipeline that gathers data from roughly 6–10 external sites. The directory must hold three kinds of records at launch—restaurant menus, product prices, and service listings—and refresh the full data set on a weekly schedule. Here’s the flow I have in mind: scraper scripts (Python with Scrapy, BeautifulSoup, or a comparable framework) pull structured information from each source, normalise it, and load it into a database that powers the public-facing site. A cron job or cloud function should trigger the weekly update, logging what changed so I can spot anomalies quickly. Duplicate detection, polite rate-limiting, and respect for are essential. Deliverables • Clean, well-commented scrapin...

## Professional Website Development – Modern & User-Friendly I am looking for an experienced web developer to build a modern website inspired by the reference website below: **Reference Website:** The new website should have **similar core functionality and features**, but the design and layout should be **completely different, modern, professional, attractive, and user-friendly**. I am looking for someone who can understand the reference website and also suggest improvements to create a better overall **UI/UX and user experience**. ### Please provide: * Estimated project timeline * Total project budget * Recommended technology/tech stack * What information or resources you need from me * Examples of similar websites you have developed The website should be **fully respon...

DESARROLLADOR FULL STACK – INTEGRACIÓN STRIPE Y SISTEMA DE TRAZABILIDAD DE COMPRAS Buscamos un desarrollador Full Stack para desarrollar un sistema de trazabilidad y confirmación de compras para un servicio de sesiones privadas online. Objetivo Desarrollar un flujo automatizado que permita registrar y conservar evidencia asociada a cada compra realizada mediante Stripe, incluyendo: Confirmación de intención de compra. Aceptación de términos y condiciones. Confirmación de asistencia. Confirmación posterior de realización de la sesión. Registro de IP y timestamps. Vinculación de toda la información con la operación correspondiente de Stripe. Flujo requerido 1. Pago El cliente realiza el pago...

Intelligent Financial Fraud Detection System Python, SQL, XGBoost, Isolation Forest, SHAP, FastAPI, PostgreSQL, Streamlit, Docker, AWS Developed an end-to-end fraud detection pipeline processing financial transaction data using Python, SQL, and PostgreSQL, including data cleaning, exploratory analysis, feature engineering, and class-imbalance handling. Trained and compared Logistic Regression, Random Forest, XGBoost, and Isolation Forest models for supervised fraud classification and unsupervised anomaly detection. Engineered behavioral and transaction-velocity features including transaction frequency, amount deviation, new-device activity, unusual location, and time-based spending patterns. Implemented SHAP-based explainability to identify transaction-level factors contributing to fraud ...

I have an existing multi-tenant SaaS platform called SipScale, built and iterated quickly using Replit and AI-assisted development. The platform is functional and fairly extensive, but before continuing feature development I need a senior full-stack SaaS developer/software architect to perform a complete technical audit of the existing application and address the most critical issues discovered within the project budget. This is NOT a greenfield build. I am not looking for a redesign or a complete rebuild. Budget Fixed price: $1,500 Milestone 1 — $1,000: Full Technical Audit Milestone 2 — $500: Critical Stabilization I understand $1,500 may not cover every fix. The priority is to thoroughly understand and document the system first, then use the remaining budg...

# Senior Solana Full-Stack Developer Needed — AI Whale Intelligence + Trading Platform ## PROJECT I am looking for an experienced **Solana blockchain developer / full-stack engineer or small team** to build a Solana-only crypto intelligence and trading platform. **Working name: Daddy Fomo AI** The vision is to combine **Solana on-chain intelligence + whale tracking + AI analysis + wallet network visualization + real-time signals + trading + copy trading** into one premium platform. This is not intended to be a basic blockchain explorer. The goal is to make complex Solana activity easy to understand, visualize and act upon. ## 1. WALLET & WHALE INTELLIGENCE Users should be able to search and monitor Solana wallets. Wallet profiles: * SOL/token balances * Portfolio value *...

We are looking for an experienced Full-Stack Mobile App Developer to build a small, lightweight, production-ready mobile application with a simple 3-section structure: Home - Main dashboard, balance/status, timed activity/session, progress and statistics Rewards - Ads, referrals, bonuses, withdrawal and FAQ Account - Profile, account information, history, settings and support Required Programming Skills Mobile: Flutter / React Native / Android (Kotlin) Frontend: UI development, API integration, state management, timers/background processes Backend: Node.js / similar, REST APIs, authentication, business logic Database: PostgreSQL / MySQL / Firebase / Supabase Integrations: Ad SDKs, notifications, analytics and payment/withdrawal APIs Security: Authentication, API security, server-side val...

I need an experienced full-stack partner to build a modern, responsive booking platform for “Agra SK Baghel Tour & Travels.” The look and feel should be premium—dark navy accented with gold—and fully optimised for mobile and desktop. Core flow • Visitors browse services, featured routes and packages, dedicated vehicle pages and real-time Google-Maps-powered routes. • They calculate one-way or round-trip fares instantly, pay a flat ₹500 advance through Razorpay, and receive automated confirmations via WhatsApp, SMS and email (orchestrated with n8n). • On my side, a lightweight admin panel lets me create, edit and track bookings; no end-user authentication is required for this release. Homepage must-haves – Featured Routes & Pa...

Existing Flutter Application — Production Build & Deployment We have an existing Flutter mobile application with a Python/FastAPI backend. The application is already substantially developed. We are looking for an experienced Flutter developer or small team to complete production engineering, live integrations, device testing and Android/iOS deployment. Important This is not a new app development project. The selected developer must work from the supplied source code and continue from the existing architecture. We do not want the application rebuilt from scratch unless a specific technical issue is identified and approved. Technology Stack - Flutter - Android / iOS - Python / FastAPI - PostgreSQL - Redis - Firebase - FCM / APNs - REST / OpenAPI APIs - OCR / ML Kit - Offline...

We are seeking an established IoT platform developer, software company, or IP holder to sell us an existing, commercially ready IoT Fuel Tanker Trailer Tracking and Monitoring Platform. We require full access to the source code, technical documentation, and full intellectual property (IP) transfer rights so our internal team can customize, deploy, and maintain it. We are not looking to build this from scratch—we want to buy a battle-tested, functional code baseline. Core System Architecture Requirements: 1. IoT Protocols & Hardware Ingestion: MQTT, HTTP/HTTPS APIs, TCP/UDP sockets supporting standard GPS hardware and Modbus RS480/485 digital fuel level probes/ultrasonic sensors. 2. Backend: Scalable microservices or modular architecture (e.g., Node.js, Python/FastAPI, Go, or Ja...

## Project Description We are building **Rupexi**, an AI-powered personal and family expense management SaaS designed to make expense tracking simple, intelligent, and automated. Rupexi allows users and families to track expenses, scan receipts, manage transactions, monitor budgets, understand spending patterns, and receive AI-powered financial insights. We are looking for an experienced **Full-Stack Developer / Product Engineer** to join the project and help us enhance, stabilize, and scale the platform. ### Existing Technology Stack * **Mobile/Web App:** Flutter * **Backend:** Python + FastAPI * **Database:** PostgreSQL * **Admin Panel:** React * **AI Service:** Groq / Llama-based AI * **OCR:** Google Cloud Vision * **Architecture:** API-first, scalable SaaS architecture * **Deploym...

Project Title: Social Media App (MVP - Minimum Viable Product) 1. App Goal (Uddeshya) Ek aisi social networking mobile application banana jahan users apna profile bana sakein, posts share kar sakein, aur doosre users ke saath interact kar sakein. 2. Platform Target Android aur iOS (Flutter ya React Native ka upyog karke) 3. Key Features (Mukhya Features) User Authentication (Signup/Login) Mobile Number / Email ID aur Password se signup Google aur Phone OTP login option Forgot Password / Reset option User Profile Page Profile Picture, Name, Bio, aur Location update karna Total Posts, Followers, aur Following count dekhna Edit Profile option Feed & Posts (Home Screen) Continuous scrolling feed (naya post sabse upar) Post Creation: Text likhna, Image upload karna, aur Caption daalna Post ...