PostgreSQL Jobs

Design, configure, and maintain Asterisk-based telephony systems. Develop and manage SIP trunk configurations, IVRs, call routing, DID management, and dial plans. Integrate telephony systems with REST APIs, webhooks, and third-party platforms. Build and maintain API integrations for the Neurova platform. Configure inbound and outbound call flows, click-to-call, predictive dialing, and intelligent routing. Work with AI Voice Agents and ensure seamless human call transfer (human failover). Integrate WhatsApp, SMS, Email, CRM, and other communication channels where required. Troubleshoot voice quality, SIP signaling, RTP issues, and carrier connectivity. Collaborate with the AI development team to integrate Speech-to-Text (STT), Text-to-Speech (TTS), and LLM-based conversational workflows. Op...

I have a ready-made SaaS application written in Go, complete with step-by-step installation notes in its GitHub repository. I need the service running reliably on my VPS and connected to a PostgreSQL database. All source, environment files, and build scripts are already in the repo; I simply need an experienced Go/DevOps professional to follow the guide, adjust paths or variables where required, and make sure the app starts automatically on reboot. Please handle any missing dependencies, compile the binary, migrate the PostgreSQL schema, and confirm that the public endpoint is live. Acceptance criteria: • SaaS reachable from the VPS’s public domain or IP. • PostgreSQL integration verified by a working signup/login flow. • Systemd (or an equivalent service manager) ke...

**Project Overview: Custom CRM for Electronics Retail & Distribution Business** I need a custom web-based CRM (Customer Relationship Management) system for my electronics retail and distribution business. We deal with both B2B and B2C customers and sell products such as air conditioners, refrigerators, washing machines, televisions, and other electronic appliances. The primary objective of the first version is to ensure that no customer inquiry or follow-up is ever missed. Multiple salespersons should be able to log in, add new inquiries, update existing ones, schedule follow-ups, and track the status of each lead. Managers should have complete visibility into all inquiries and salesperson activities through dashboards and reports. The system should be modular so that additional fea...

Project Summary: I want to develop a FinTech web application that allows users to invest in fractional shares of luxury cars. The platform features a user-friendly interface for browsing and purchasing shares, with secure payment processing and real-time market updates. Project Overview: The platform features two core investment mechanics. 1. TurboYield (Car Fractionalization): Users purchase fractional shares of a car to earn passive monthly income derived from rental revenue distributions. Example: A Porsche car is valued at ₹1 Crore. Total Shares Issued: 10,000. Price per share: ₹1,000. Car earns ₹5 lakh net revenue after expenses. Monthly Rental yield = 500000 ÷ 10000 shares = 50/share. 2. TurboFlip (Car Buy & Sell): Users pool capital to purchase a vehicle, which is the...

Project Description We are building an Indian hyperlocal grocery delivery startup focused on fresh vegetables, fruits, dairy, and private-label products. We are looking for an experienced full-stack developer or development team to build a scalable MVP that can grow into a nationwide platform. The platform should be fast, secure, and easy to scale, with a premium user experience inspired by Blinkit, Zepto, Instamart, and BigBasket. Scope of Work Develop the following: Customer Android App Customer iOS App Customer Website Admin Dashboard Partner/Store Panel Delivery Rider App Warehouse Dashboard Customer Features OTP Login GPS Location Detection Product Search Categories Add to Cart Secure Checkout Razorpay Integration Live Order Tracking Order History Scheduled Delivery Push Notifica...

I agree. On Freelancer, the more you describe a billion-dollar vision, the more likely you'll get inflated quotes or attract people who say "yes" to everything. Instead, describe **only the first version**. You can always expand later. Here's a lean posting: --- # Build a Modern BPO Job Platform (Web) I'm looking for an experienced full-stack developer to build a modern job platform for the BPO (Business Process Outsourcing) industry. The platform should be similar to LinkedIn/Indeed but focused only on BPO and call center jobs. ### Features * User registration/login * Candidate profiles * Company profiles * Recruiter dashboard * Post jobs * Browse/search jobs * Apply for jobs * Save jobs * Resume upload * Basic messaging between recruiters and candidates *...

AI Avatar Factory – Build an Autonomous 24/7 AI Content Platform (n8n • OpenAI • AI Avatars • PostgreSQL • Railway • GitHub) ABOUT NEVIE-GLOBAL NEVIE-GLOBAL is a French technology company developing an ecosystem around Artificial Intelligence, Enterprise Automation, SaaS, Blockchain, Robotics, IoT, Wearable Technology and Digital Education. We are building a next-generation Autonomous AI Avatar Factory capable of automatically creating, managing and publishing AI-generated content 24 hours a day, 7 days a week with minimal human intervention. This is not a one-time project. We are looking for a reliable long-term technical partner capable of designing, building and continuously improving this platform over a minimum period of three months, with many futur...

Senior Technical Rescue, Recovery, Completion and SEO Architecture - Existing AI Platform ABOUT NEVIE-GLOBAL NEVIE-GLOBAL is a French technology company developing an ecosystem around Artificial Intelligence, Enterprise Automation, SaaS, Blockchain, Robotics, IoT, Wearable Technology and Digital Education. We are looking for a senior full-stack developer, software architect, technical SEO specialist, or a small multidisciplinary team able to recover, complete, launch and maintain our existing platform as a long-term technical partner. PROJECT CONTEXT The platform already includes WordPress, WooCommerce, Elementor, React, Node.js, PostgreSQL, Railway, Stripe, OpenAI, n8n workflows, APIs, webhooks, GitHub repositories and technical documentation. Some components work. Others are incomp...

I’m building a new web application from scratch and need a developer who can take full ownership of both sides of the stack, working exclusively with React on the frontend and Node.js on the backend. On the client side, I want a clean, component-based architecture in React, responsive layouts, and smooth state management using Redux or Context. On the server side, you’ll stand up a robust Node.js API—Express is fine—wired to a cloud-hosted database of your choice (MongoDB, PostgreSQL, etc.). I value readable, well-tested code and an eye for security and performance. Deliverables • Git repo containing the complete React frontend and Node.js backend • Documented REST endpoints (Swagger or similar) • Production-ready build deployed to my cloud a...

I need a full, production-ready fork of the open-source Signal project, re-architected as a set of container-friendly Go microservices. The goal is to keep the rock-solid end-to-end encryption that Signal offers while gaining the flexibility, horizontal scalability, and deployment speed that a Go-driven service mesh provides. Project Overview, We are building a next-generation secure communication platform based on the open-source Signal ecosystem. Our goal is to create a production-ready platform that supports millions of users while preserving Signal's proven end-to-end encryption. We are looking for senior engineers with experience in distributed systems, Go, Java, cloud infrastructure, and large-scale backed development. What do you want to add to…? Technology Stack &bul...

I’m running a commercial off-the-shelf application whose back-end is a PostgreSQL database. All image assets live inside the tables in a proprietary, native format, and I now have to extract every file to disk so they can be used as regular JPEG, PNG or TIFF images. What I need from you is a small, well-documented set of scripts—SQL to query the right tables plus a helper utility (Python, Bash or any portable language you prefer)—that will: • Locate every image record, read the binary/native data and write it out to disk • Convert or rename the output so it ends up as standard JPEG, PNG or TIFF, preserving original metadata wherever possible • Organise the exported files into a sensible folder structure (by ID or timestamp) • Produce a simple l...

# Build a Premium Manufacturing RFQ Platform (MVP) ## About the Project I am building the first version (MVP) of a manufacturing quotation platform called **OROUQ**. The goal is to create a simple, modern, and professional web application where customers can upload manufacturing drawings and request quotations. This is **not** a marketplace in the first phase. The platform owner (Admin) will manually review requests, contact workshops and factories, prepare quotations, and send the final quotation back to customers. The project should be scalable because additional features will be added in future releases. --- ## Main Services The platform will initially support: * CNC Machining * Laser Cutting * Steel Fabrication * Wood Manufacturing * General Fabrication --- ## Customer Webs...

Project Title Guest Services Platform - Tablet Solution Integrated with INNCOM by Honeywell for Hotel. Solution will work on Tablet and Hotel TV through Set-Top Box. Project Overview We are looking for an experienced developer/team to design and develop a tablet-based Guest Services Platform for hotel guest rooms. The tablet will be wall-mounted in each room and will act as the main interface for guests to control room functions and access hotel services. Guest can also access the platform using Room TV. The system must be fully integrated with INNCOM by Honeywell for room controls and with our PMS for guest data, billing, and events. Key Requirements Integration: RS485 / IP Gateway to INNCOM by Honeywell BMS Core Functionalities A. Room Controls - via INNCOM Integration Lights ...

Project Title: AI-Powered Cybersecurity Threat Detection & Monitoring System I am looking for an experienced cybersecurity developer to build an AI-powered Cyber Threat Detection and Monitoring System. The solution should monitor network activity, detect suspicious behavior, and generate real-time alerts using machine learning techniques. Project Requirements: Real-time network traffic monitoring. Intrusion detection and suspicious activity alerts. AI/ML-based threat detection using Python. Interactive dashboard with charts and logs. User authentication and role-based access. Email notifications for critical threats. Secure database for storing logs. Clean, well-documented source code. Preferred Technologies: Python Scapy Flask or Django HTML, CSS, JavaScript MySQL or PostgreS...

Project Title: AI-Powered Cybersecurity Threat Detection & Monitoring System I am looking for an experienced cybersecurity developer to build an AI-powered Cyber Threat Detection and Monitoring System. The solution should monitor network activity, detect suspicious behavior, and generate real-time alerts using machine learning techniques. Project Requirements: Real-time network traffic monitoring. Intrusion detection and suspicious activity alerts. AI/ML-based threat detection using Python. Interactive dashboard with charts and logs. User authentication and role-based access. Email notifications for critical threats. Secure database for storing logs. Clean, well-documented source code. Preferred Technologies: Python Scapy Flask or Django HTML, CSS, JavaScript MySQL or PostgreS...

Technical Co-Founder & Figma UI/UX Designer Wanted (Bangladesh-Based | Equity & Revenue Share) We are bootstrapping HGDS (Human-First Digital Nation), a revolutionary decentralized virtual society governed entirely by real, verified human agents (strictly Zero AI/NPCs). We are currently building our Phase 1 MVP—a responsive 2D Web3 portal focused on Sybil-resistant onboarding, a unified citizen dashboard, and a quadratic voting engine. We have a clear, realistic 3-4 month development roadmap and a solid technical specification ready. To kickstart this journey, we are looking for two key partners based in Bangladesh to join our core team: POSITION 1: Technical Co-Founder (Lead Web3 Developer) What You Will Do: Setup PostgreSQL/Node.js backend, DB schema, and Web of Trust inv...

Next Generation Tech Lead Needed Now – Industry Disrupting Multi Media Platform Seeking a growth oriented, hands on, technically competent individual who is driven to learn and ready to step into a technical lead role while architecting and implementing a one of a kind AI driven application. This project uses Postgres with JSONB, pgvector, AWS Lambda, API Gateway, S3 bucket design, and a retrieval augmented generation pipeline built with tools such as LlamaIndex, Voyager, or similar frameworks. The role involves leading edge design for chunking and embedding workflows for large documents, building metadata schemas, integrating vector search with structured retrieval logic, and constructing clean pipelines that feed context into large language model endpoints. You will also assist wit...

Project Scope: E‑Pharmacy Mobile App with Backend Portal *** If you have an existing similar project, that would be a plus Objective Develop a production-grade e‑pharmacy mobile application using Flutter, supported by a comprehensive backend portal for stock management. The solution should optionally integrate with an ERP module via plug‑and‑play architecture. The app must deliver strong UI/UX, support single or multi‑branch pharmacies, and include marketing and analytics features. Mobile App (Flutter) - User-friendly UI/UX with modern design principles. - Prescription upload & validation for regulated medicines. - Product catalog with categories, search, and filters. - Cart & checkout with multiple payment gateways. - Order tracking with push notifications. - Multi-branch suppo...

I have prepared a concise technical exercise that covers the complete workflow of a modern web application, from database layer to browser. The specification document is already written and will be shared immediately after we start; please follow it exactly and return a fully working solution. Scope • The assignment is strictly full-stack, so plan to wire up everything end-to-end. • Frontend must be built with React. Feel free to enrich it with hooks, TypeScript, Redux Toolkit or any other React-friendly utilities you prefer, as long as setup and usage are clear. • Backend must run on Node.js. You may structure it with Express, NestJS or a lightweight custom framework; again, keep dependencies reasonable and document any architectural decisions. • Persist data ...

TITLE Full-Stack Developer – AI-Powered Career Tools Web App (Node/Postgres, OTP Auth, Admin Panel) DESCRIPTION I need a developer to build the backend, database, authentication, and admin layer for a career-tools web app. The front end (20-25 static HTML pages, fully designed) already exists and is not part of this job, it will be extended, not rebuilt. This posting covers the functional scope only; full written requirements and a private repo are shared with shortlisted candidates before final quote. THREE CORE TOOLS (all AI-powered, all require login) 1. Document Reviewer — user uploads a Document (Word .doc/.docx only), backend extracts text, sends it to an AI provider, returns a written report to the user's dashboard and by email. 2. Profile Reviewer — user u...

## Project Overview We are looking for an experienced software development team (or senior full-stack developer) to build a complete **Hotel Revenue Management System (RMS)** for our hostel group. The system will monitor competitor prices, analyze market demand, predict occupancy, and recommend the best room prices using Artificial Intelligence. Initially, the platform will manage approximately **6 hostels located in Spain**, with the possibility of expanding in the future. The goal is to maximize occupancy and revenue by making pricing decisions based on real-time market data. --- # Main Features ## 1. Competitor Price Monitoring The system must: * Monitor prices from approximately **10 competitors for each hostel**. * Collect room prices from: * * Expedia * Hostelworld ...

Mi plataforma SaaS está lista para salir al mercado, pero antes de lanzar quiero asegurarme de que el rendimiento sea impecable. Necesito un especialista que analice a fondo la aplicación y entregue un diagnóstico claro, centrado en: • Gestión de base de datos: revisa índices, relaciones y volumen de datos; optimiza consultas que hoy puedan estar afectando la latencia. • Mejoras en código: detecta cuellos de botella en funciones críticas, propone refactorizaciones y buenas prácticas que reduzcan consumo de CPU y memoria. Proceso esperado: 1. Auditoría técnica inicial (revisión de logs, métricas y profiling). 2. Informe detallado con hallazgos, gráficas comparativas y recomendaciones p...

I am looking for an experienced Django developer to implement a clean, scalable, and production-ready multi-tenancy architecture for my existing Django application. The application is already fully developed. I am not looking for new features or changes to the business logic. My goal is to refactor the architecture so that each customer (tenant) has their own isolated PostgreSQL schema, ensuring complete data separation. Requirements Implement schema-based multi-tenancy using PostgreSQL. Each customer must have their own dedicated PostgreSQL schema. Each customer must also have their own subdomain (e.g., , ). Automatically resolve the tenant based on the incoming subdomain and switch to the corresponding PostgreSQL schema. Provide a clean onboarding process that creates a new tenant, provi...

The mobile front-end is ready; now I need a solid Node.js backend that exposes clean REST APIs, persists data in PostgreSQL, and secures every call with JWT-based authentication. You will design the schema, write the services, wire up the auth flow, and make sure everything runs smoothly in test and production environments. Familiarity with cloud deployment (AWS, GCP, or similar) will help you hit the ground running, but the immediate focus is on well-structured code, documented endpoints, and reliable integration with the existing React Native UI. Key deliverables • Fully documented REST API (OpenAPI/Swagger preferred) • PostgreSQL schema & migration scripts • JWT auth implementation with role-based authorization hooks • Environment-specific configs plus a...

I’m looking for one trusted full-stack developer to take over an existing mobile chat app and bring it to production. The project already has: 1. Flutter mobile app UI/screens 2. Existing backend codebase 3. Admin panel 4. Database schema and API work started 5. Existing app concept, design assets, and APK builds The remaining work is mainly: Review and clean up the existing codebase Connect the Flutter app to the backend APIs Complete authentication and user onboarding Complete real-time chat functionality Fix backend issues and missing production features Implement safety/reporting/blocking flows Complete media sharing and notification flows Prepare app for production deployment Improve testing, security, and reliability Support app store readiness if needed Required Skills 1. F...

PERFECCITY MVP – Full-Stack Web Application Development Project Overview We are building PERFECCITY, a web-based platform for modular wall panel and furniture design, sales, quotation, and manufacturing. The MVP focuses on completing the entire customer journey from lead generation to manufacturing package creation. Tech Stack - React + TypeScript - Node.js (Express/NestJS) - PostgreSQL - (GLB Viewer) - AWS S3 (File Storage) - JWT Authentication - PDF Generation - REST APIs MVP Features - Role-based authentication (Admin, Consultant, Designer) - Product SKU Master - Design Library with GLB model upload - Lead & Project Management - Customer Consultation Workflow - 3D Design Viewer with material switching - Configuration & BOM Engine - Recommendation Engine - Automated...

I need a Full-Stack Developer to build a Real-Time Crash Game Predictor & Strategy Dashboard. Project Overview: The platform will integrate with 1xBet's crash game to read public data, analyze patterns, and generate predictions using a statistical model. It will also help me manage my betting strategies (like Chain Betting and Hedging) with a clear, visual dashboard. Core Features Needed: 1. Real-Time Data Reader: Read publicly available round results from 1xBet (live odds, multipliers). 2. Prediction Engine: Analyze past rounds and detect patterns to predict the next crash multiplier. The model should improve over time. 3. Strategy Dashboard: Input my bankroll, select strategies (e.g., Chain Bet, Hedging), and see real-time recommendations (stake size, cash-out point). 4. User ...

Turkish Senior React + Node Developer for an AI EdTech Platform (Türkiye only) ReadMate is an adaptive English reading platform for schools, running as a Teknokent R&D project. The MVP works. We need a senior developer to extend it and take it to production. Stack: React, Node.js / Express, PostgreSQL, REST APIs, LLM (AI) integration. Scope of work: Extend the existing React + Node/Express + Postgres codebase Build out AI features: on-demand text simplification and an end-of-book AI debate tutor Harden the platform for school deployment: role-based access across six user types, analytics dashboards, testing, CI/CD [Estimated hours per week / project duration] You must have: 5+ years of senior-level React and Node.js/Express work Strong PostgreSQL schema design and query optim...

I’m looking for one trusted full-stack developer to take over an existing mobile chat app and bring it to production. The project already has: 1. Flutter mobile app UI/screens 2. Existing backend codebase 3. Admin panel 4. Database schema and API work started 5. Existing app concept, design assets, and APK builds The remaining work is mainly: Review and clean up the existing codebase Connect the Flutter app to the backend APIs Complete authentication and user onboarding Complete real-time chat functionality Fix backend issues and missing production features Implement safety/reporting/blocking flows Complete media sharing and notification flows Prepare app for production deployment Improve testing, security, and reliability Support app store readiness if needed Required Skills 1. F...

CRM Software Development Required (Web-Based CRM) We are looking for an experienced CRM Software Developer or Development Team to build a responsive web-based CRM system for our business. Project Requirements The CRM should include the following modules: Secure Login & User Management Dashboard with Business Insights Lead Management Customer Management Sales Pipeline Management Follow-up & Reminder System Task Management Employee Management Reports & Analytics Email & Dashboard Notifications Advanced Search & Filters Admin Panel Technical Requirements Responsive Web Application (Desktop, Tablet & Mobile) Clean and User-Friendly Interface Secure Database Design Admin & User Panels Basic Security Features Deployment Support Documentation & Basic Training P...

I need a full-featured, SEO-friendly Matka result platform that mirrors the smooth user flow of dpboss while maintaining its own clean look and feel. The core build must be responsive, load fast, and ship with on-page SEO best practices already in place (structured data, meta tags, clean URL slugs, XML sitemap, , etc.). Core modules I expect you to deliver: • User Management – secure registration & login – individual profile pages – role-based access control so admins, moderators and regular members each see the right tools • Market Management – create, open, close and update markets in real time – visual analytics for current and past markets – complete market history archive searchable by date or game • Co...

Project Title: Full-Stack Developer for a Short-Term Rental (STR) Management Platform Description: We're building a multi-tenant SaaS platform for short-term rental / property management companies. The stack is (React, TypeScript) frontend and a Node.js/Express + PostgreSQL backend with JWT auth and organization-level data isolation. We need an experienced full-stack developer to extend features, fix bugs, and help harden the app for production. Core modules (existing + planned): Property & multi-calendar management, reservations/bookings Financials — P&L, owner payouts, agent commissions, expenses, reconciliation Revenue management & pricing recommendations Owner portals, team/user roles & permissions (multi-org) Cleaning & maintenance scheduling, inven...

I want to launch a lean but fully working social network that feels familiar to Instagram users and is built entirely with React on the front-end, Node.js on the back-end and PostgreSQL as the data store. Core features I need from day one are: photo and video sharing (upload, display, feed), real-time direct messaging between users, and rich user profiles with avatar, bio and basic follow / unfollow mechanics. For authentication I only need a solid email-and-password flow right now, but the codebase should be organised so that OAuth providers can be slotted in later without a full rewrite. Please structure the project as a modern SPA: React (hooks, context or Redux if you prefer), responsive UI, lazy-loaded media, and clean routing. The server may use Express or a comparable Node fra...

We are a financial service company looking for an experienced Full-Stack Developer or a small team to deploy our pre-built React-based Loan Management System, migrate its data layer from Firebase/Mock to a robust SQL Database (MySQL or PostgreSQL) with a secure Node.js backend, and build 2 companion Android apps that sync with this centralized database. The web portal's user interface, screens, states, and business logic are 100% complete and built in React (TypeScript) + Tailwind CSS + Vite. You only need to build the SQL backend, wire the API endpoints, build the Android applications, and go live on our custom domain.

I am looking to develop a standard web-based billing and invoicing software designed for small businesses to manage transactions, generate receipts, and track basic sales. *Key Features Required:* * User Authentication: Secure login for admin and staff members. * Product/Inventory Management: Ability to add, edit, and track items, pricing, and stock levels. * Billing & Invoicing: A dynamic checkout interface to select items, calculate taxes/discounts, and generate PDF invoices. * Sales Dashboard: Simple visual reports showing daily, weekly, and monthly revenue. *Preferred Tech Stack:* * Frontend: HTML5, CSS3, JavaScript (or a framework like React/Vue if preferred). * Backend: Python (Flask/FastAPI) or Node.js. * Database: PostgreSQL, MySQL, or Firebase for real-time data sync. *What...

I'm looking for an experienced developer to integrate an SQL system into an existing app, which is not my own. Key requirements: - The SQL system will be primarily used for a nutrition database. - I need someone who can assess the app's current structure and determine if any APIs or endpoints are available for integration. Ideal skills and experience: - Proficiency in SQL systems (MySQL, PostgreSQL, or SQLite) - Experience with app integration and database management - Ability to analyze existing systems and provide solutions Please provide examples of similar work done.

1. Purpose This document defines the functional and non-functional requirements for developing a RetailMan-style Point of Sale (POS) system designed for retail businesses operating multiple branches, each running offline, with multiple terminals, multiple stock locations, and credit sales support. The system must be fast, reliable, offline-first, and suitable for supermarkets, electronics stores, hardware shops, and similar retail environments. 2. System Overview Each branch operates independently on its own local server and LAN. Multiple cashier terminals connect to the branch server. The system works 100% offline at branch level. A future sync module will allow consolidation between branches when internet is available. 3. Architecture Requirements 3.1 Deployment Model Branch Ser...

Our in-house team has a working ERP built with React, Node and MySQL, but the three core areas—Projects Management, Client Billing and Material Management—still feel like separate islands. I need a full-stack developer who can weave them together, finish the remaining screens and, most importantly, layer in the new intelligence and tracking features listed below. What has to change • AI-powered insights must predict project timelines and completion probability while flagging cost overruns or budget deviations, all surfaced through clear dashboards and exportable reports. • Material theft and wastage tracking should be live; I don’t want daily, weekly or monthly batches—data needs to update continuously so a site manager can act the moment a discrepanc...

Build a Modern Cloud-Based Accounting ERP Software (Tally Alternative) with GST & Inventory Management Project Overview We are looking for an experienced software architect and full-stack developer (or development team) to build a modern, scalable, cloud-based accounting ERP platform similar to TallyPrime, with additional advanced features for inventory management, refurbished electronics, GST compliance, and business automation. This is a long-term project and we are looking for a developer who can continue enhancing the software after the initial release. ⸻ Preferred Technology Stack We welcome recommendations, but our preferred stack is: Frontend * React.js * * TypeScript Backend * ASP.NET Core (.NET 9 / C#) Database * PostgreSQL Mobile Application * Flutter (Android ...

# Full Stack Developer Required – Dealer Management System (Long-Term) We are looking for an experienced Full Stack Developer to take ownership of our Dealer Management System (DMS) project and manage it from development to deployment. ## Project Overview The project is already developed to a large extent. We need a developer who can understand the existing codebase, continue development, fix bugs, add new features, improve performance, and manage deployment. ## Technology Stack - React / (Frontend) - Node.js / Express (Backend) - PostgreSQL - GitHub - REST APIs - Email (SMTP/Nodemailer) - Authentication & JWT ## Responsibilities - Understand the existing project architecture. - Add new modules and features. - Fix bugs and optimize performance. - Implement secure authenticat...

My esports tournament platform needs a thorough penetration test completed within four days. The stack combines a Supabase/PostgreSQL back end, REST/GraphQL-based APIs, user accounts, an admin console, and a wallet that handles deposits, withdrawals, and payment-gateway traffic. Primary focus is the payment gateway and wallet layer, yet I still want every public or privileged surface probed against the full OWASP Top 10 as well as common esports-specific attack patterns. That includes: authentication and authorization flows, admin privilege escalation, API abuse, IDOR, SQLi, XSS, insecure file uploads, exposed secrets, and verification of Supabase row-level security. Attempted manipulation of balances or tournament results is welcomed if it highlights a weakness. When the engagement en...

Tenemos un SaaS clínico para nutricionistas (gestión de pacientes, planes dietéticos, cálculo de macros/requerimientos, reportes, asistente con IA y facturación por pasarela). El producto ya está funcional y desplegado, pero necesitamos un desarrollador full-stack senior que revise el código, valide lo ya construido y complete lo que falte para un lanzamiento a producción sólido y seguro. Stack Frontend: React + TypeScript + Vite + Tailwind Backend/DB: Supabase (PostgreSQL, RLS, Edge Functions en Deno) Infra: Vercel (deploy), GitHub Actions (CI/CD) Pagos: Culqi IA: integración con modelo vía API (chatbot/sugerencias) Qué necesitamos (alcance) Auditoría de código y arquitectura Revisar cali...

API o Servicio para Generación de Guía Aérea Electrónica (e-AWB) conforme a IATA Descripción del Proyecto Se requiere desarrollar un API o servicio en Python para incorporar a una aplicación web existente, cuyo objetivo será la generación de Guías Aéreas Electrónicas (e-AWB) conforme a los estándares definidos por IATA. La aplicación ya dispone de un módulo operativo para embarques aéreos y actualmente genera la Air Waybill (AWB) en formato PDF, utilizando el formulario estándar IATA e incluyendo la mayoría de los campos obligatorios requeridos para la emisión. El objetivo del proyecto es desarrollar el componente que permita transformar dicha información ...

AI Solutions Architect - LinkedIn & Zoho Integration am looking for a Senior AI Solutions Architect / Full-Stack AI Developer to build a long-term AI platform, starting with a LinkedIn Marketing & Content Agent integrated with Zoho. This is Phase 1 of a much larger AI transformation. Required Skills OpenAI API Prompt Engineering AI Agents Zoho Creator Zoho CRM Zoho Flow Zoho WorkDrive Zoho Social Python or Node.js REST APIs OAuth Authentication PostgreSQL or similar database Canva API (preferred) LinkedIn official API experience GitHub Docker (preferred) Phase 1 Deliverables 1. Project Upload Portal Develop a portal where our engineers upload: Photos Videos Voice notes Project information Scope Challenges Equipment Safety achievements Client type Approval status Store everything in...

am looking for a Senior AI Solutions Architect / Full-Stack AI Developer to build a long-term AI platform, starting with a LinkedIn Marketing & Content Agent integrated with Zoho. This is Phase 1 of a much larger AI transformation. Required Skills OpenAI API Prompt Engineering AI Agents Zoho Creator Zoho CRM Zoho Flow Zoho WorkDrive Zoho Social Python or Node.js REST APIs OAuth Authentication PostgreSQL or similar database Canva API (preferred) LinkedIn official API experience GitHub Docker (preferred) Phase 1 Deliverables 1. Project Upload Portal Develop a portal where our engineers upload: Photos Videos Voice notes Project information Scope Challenges Equipment Safety achievements Client type Approval status Store everything inside Zoho WorkDrive. 2. AI Content Generator Automaticall...

# Clinic Website Development Requirements () ## Project Overview Develop a modern, responsive, SEO-friendly website for our clinic using ****. The website should provide patients with information about our services, doctors, and facilities while allowing them to easily book appointments and contact the clinic. ## Technology Stack * Framework: (Latest Stable Version) * Styling: Tailwind CSS * Database: PostgreSQL/MySQL (if required) * CMS: Headless CMS (Strapi/Sanity/Contentful) or Admin Panel * Deployment: Vercel or AWS * Image Optimization: Image Component * SEO: Server-Side Rendering (SSR) or Static Site Generation (SSG) ## General Requirements * Mobile-first responsive design * Fast loading speed * SEO optimized * Secure coding practices * Accessibility (WCAG compliant where pos...

I already have the raw HR analytics dataset from Kaggle sitting in a MySQL database, populated each time my existing Python ETL script runs. The broad pipeline works; now I want to drill down on one thing only: how entry-level attrition is evolving over time. Here’s what I need from you: • A clean, well-commented SQL query (or set of queries) that calculates monthly and quarterly attrition rates for entry-level employees. • A short Python (pandas) routine that executes those queries, pushes the results to an Excel file, and time-stamps each export so historical runs are preserved. Acceptance criteria 1. SQL returns the correct counts and percentages when spot-checked against sample rows in MySQL. 2. The Python script runs from the command line without manual ...

I'm looking for an experienced Backend or Full Stack Developer to work with me long-term on a CPaaS (Communication Platform as a Service) project. The platform includes services like SMS, WhatsApp, Email, and other event-driven messaging services built using a microservice architecture. This is NOT an hourly project. I would like to pay per completed task/milestone, and I'll be assigning tasks regularly over the long term. Individual freelancers only. No agencies, software companies, or teams. Typical Tasks * Debugging and fixing complex issues * Performance optimization * Improving system design and architecture * Implementing new features * Reducing bugs and improving code quality * Real-time messaging improvements * WebSocket implementation and polling optimization * API d...

I'm building a web application and need an experienced full-stack developer comfortable with React on the front end and integrating modern AI/LLM features into the product. The core app is React-based, and a key part of the work is wiring up AI-powered functionality (chat, smart search, content generation, or similar) through APIs. What you'll work on: Build and maintain responsive React components with clean, reusable code. Integrate AI/LLM capabilities via APIs (OpenAI, Anthropic, or similar), including prompt handling and streaming responses. Connect the front end to a backend (Node.js or similar) and work with a database. Handle API integration, state management, and error handling properly. Collaborate on UX so the AI features feel smooth and genuinely useful, not bolted on...

Master Director: Most is already built: Project $10-$30 MAX FIRM PROJECT: Autonomous Non-Print Quantitative Research Platform NOTE: Most of this framework is already built. I am seeking an experienced Python/QuantConnect LEAN developer to complete, integrate, enhance, and automate the remaining components. Please read the attached project overview before bidding. OBJECTIVE Build a modular quantitative research platform that transforms Interactive Brokers (IBKR) Time & Sales data into statistically validated trading strategies. This is NOT a traditional trading bot. The objective is to create a repeatable research pipeline that can continuously generate, validate, rank, deploy, and improve trading strategies from proprietary Non-Print market structure data. The entire system m...