PostgreSQL is the world's most advanced, powerful, and efficient open source relational database management system, and some of the world’s most demanding applications rely on PostgreSQL as their primary database management system. PostgreSQL is known for its accuracy, security, and scalability. A PostgreSQL Developer creates ways to store corporate data in a reliable, secure, and efficient way. They can create scalable databases using these technologies - this means that a PostgreSQL Developer can help you keep up with the ever increasing demand for larger amounts of data. They can also develop applications to read from and write to these databases and optimize existing databases for better performance.

Compared to other database management systems, PostgreSQL boasts superior performance, reliability and security. This Database Management System is also renowned for its extensibility, meaning that it allows developers to customize their databases according to the exact needs of their application and load requirements - whether it's a simple web application or huge enterprise scale solutions.

Here's some projects our expert PostgreSQL Developer made real:

  • Developing unique solutions with Odoo Manufacturing & Maintenance Module
  • Connecting web applications with secure REST API integrations
  • Creating data extraction scripts with Nodejs
  • Developing complex SaaS solutions with Laravel/React/AWS
  • Implementing advanced authentication protocols (JWT)
  • Truckloads of migration projects from different AWS stacks & SSO integrations
  • Developing automation & no-code project pipelines leveraging nodejs and python
  • Building serverless Java applications with Springboot and other frameworks
  • Publishing/Hosting express.js & handlebars.js web apps

PostgreSQL technology has been a go-to solution for many clients when creating bespoke applications that meet the needs of their business. Our PostgreSQL Developers have built everything from small custom applications to complex enterprise solutions on Freelancer.com. You too can hire an expert developer here today to make your project happen!

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    I'm experiencing issues with role assignment in Spring Security. Specifically, the roles are not being assigned correctly. Additionally, some screens - particularly the Profile and manage user screens - are not visible. I need these problems fixed urgently. Key Requirements: - Correct role assignment in Spring Security - Ensure the visibility of Profile and manage user screens Ideal Skills and Experience: - Extensive experience with Spring Security - Proficiency with screen visibility and access management in Java applications - Strong problem-solving skills, particularly with role assignment in Spring Security - Past experience with Profile and User Management screens is a plus.

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    I require a professional to upgrade my existing Odoo 10 setup to Odoo 17. The project involves: - Migrating the database from the current Odoo 10 to the latest version 17 - Upgrading all custom plugins and modules that have been used in the existing setup We currently have database dump and filestore data from Odoo 10 installation. All this should go to Odoo 17 while updating the custom plugins. Specific functionalities that are currently in use must remain untouched during the upgrade. It is important that you have a list of custom plugins that need to be upgraded. Once the upgrade is complete, I will need comprehensive documentation of the new version of Odoo. This will be for internal use for my team to understand the new features and functionalities of Odoo 17. Key skills and e...

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    I'm looking for a skilled developer to integrate Payoneer Mass Payouts, Payoneer automated monthly subscription, and Upayments into my existing system. The system now under development using Supabase database, Appsmith as an admin panel, and Draftbit as a frontend.. we need to connect users (supabase) to buy credit packages (supabase) through external payment gateway (), Also we have another program for the same app, which is partners program: so we need partners (supabase) to subscribe monthly and pay automatically (Payoneer), and get their payouts "commissions of selling " through (Mass payouts Payoneer) . Key Responsibilities: - Integrate Payoneer Mass Payouts: A successful candidate will have experience working with APIs and should be able to ensure that this feature i...

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    I am seeking a seasoned full-stack developer with expertise in ReactJS and Spring Boot. The primary focus of this project is to address performance issues in my application. Key Requirements: - Proficient in ReactJS and Spring Boot - Capable of addressing and resolving application performance issues The project will involve: - Implementing user authentication - Setting up data manipulation (CRUD operations) functionality - Identifying and resolving performance issues in the application Ideal Skills and Experience: - Proven experience in full-stack development with ReactJS and Spring Boot - Strong problem-solving skills, particularly in resolving application performance issues - Familiarity with integrating user authentication and CRUD operations Please note, the primary objective of t...

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    If you’re ready to turn coffee into code and ideas into impactful digital experiences, we’d love to chat! Are you a Full Stack Developer with a knack for crafting magical user experiences? Do you excel in native iOS and Android? Core Project Requirements: • Dual platform functionality with seamless integration and user interface on both iOS and Android. • Productivity centered functionalities to enhance workflow, time management and task prioritization. Ideal Freelancer: • Proven experience in both iOS and Android app development is a necessity. • Prior work in development of productivity apps would be favourably considered. • Strong UI/UX skills for delivering an intuitive usability experience. We're on a quest to transform complex ne...

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    I'm currently experiencing issues with my Spring Security implementation, primarily related to authorization and access control errors. Key Requirements: - I'm looking to implement a role-based access control system for my endpoints. This means that different users will have access to different endpoints depending on their assigned role. Ideal Candidate: - Proficiency in Spring Security - Experience in fixing authorization and access control errors - Strong understanding of role-based access control systems - Knowledge of best practices for security implementations - Ability to implement hard-coded user roles in the application

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    I'm looking for a Java developer who's experienced with Spring framework to help me with a critical issue. The role-based security for the endpoints in my web application needs to be fixed. Key tasks: - Review the current role-based security implementation. - Identify any vulnerabilities or misconfigurations. - Fix any issues, and enhance the security measures. Ideal skills and experience for the job: - Strong Java programming skills. - Proficient in Spring framework. - Expertise in web application security. Your main goal will be to ensure the endpoints in the application are properly secured and only accessible to users with the correct roles.

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    I need an experienced Java developer to examine and fix our endpoints' security features. Currently, we are using JWT for authentication, but we need to verify and test the 'Admin', 'User', and 'Supervisor' roles. Key Tasks: - Test and verify security features for 'Admin', 'User', and 'Supervisor' roles - Ensure endpoints work correctly for each role - Fix any identified security issues Ideal Skills: - Strong background in Java programming - Proficiency in endpoint security - Experience with JWT authentication - Ability to troubleshoot and fix security issues - Excellent understanding of role-based security Your work will be crucial in ensuring our endpoints are secure and functioning as intended.

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    I'm attempting to leverage the power of Odoo CRM to streamline my business processes. My familiarity with Odoo CRM is basic, hence I need an expert consultant in this tool. This project requires the ability to: - Assess our current use of Odoo CRM and identify opportunities for enhancement - Suggest and implement strategies to streamline our business processes leveraging Odoo's capabilities - Train and support our team in better utilizing Odoo While I'm open to improvements in all areas, I've skipped specifying any particular functions in Odoo for the consultant to focus on. I'm depending on the expert to guide me. Ideal Skills and Experiences: - Proven track record in implementing and enhancing Odoo CRM - Background in business process optimization - Excellent ...

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    We are an existing solar project enterprise in need of an ERP solution. We're particularly interested in effective implementation of the Sales, Purchase, Project, and Inventory modules in the Odoo community ERP. Our focus for the Sales module is predominantly towards Quotations and Sales orders. The ideal freelancer for this should hold significant experience in configuring Odoo, especially within the sales, purchase, Project and inventory modules and possess a solid understanding of its functionalities. This familiarity will be beneficial in accurately translating our business needs into the system.

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    This is the variant table with these fields CREATE TABLE ( id varchar(255) NOT NULL DEFAULT uuid_generate_v4(), name_lang json NOT NULL DEFAULT '{}'::json, data_area varchar(255) NULL, description json NULL DEFAULT '{}'::json, "type" bit(1) NULL, active bool NULL, created_by varchar(128) NOT NULL DEFAULT 'system'::character varying, created_on timestamp NOT NULL DEFAULT now(), updated_by varchar(128) NOT NULL DEFAULT 'system'::character varying, updated_on timestamp NOT NULL DEFAULT now(), CONSTRAINT category_pkey_1 PRIMARY KEY (id) ); this is the variant data table with these fields CREATE TABLE public.variant_data ( id varchar(255) NOT NULL DEFAULT uuid_generate_v4(), name_lang json NOT NULL DEFAULT '{}'...

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    I'm looking for a skilled NodeJS NestJS TypeScript developer with a solid understanding of event-driven architecture. The project involves developing a web application with certain key functionalities. Key Functionalities: - User Authentication and Authorization: The application should have a secure and robust user management system with authentication and authorization features. - CRUD Operations: The developer needs to implement Create, Read, Update, and Delete operations for the application's data. Requirements: - Profound knowledge in Event-Driven Architecture: Understanding of event-driven architecture is essential for the successful implementation of this project. - REST API Development: Extensive experience in developing REST APIs is necessary. - Web Development: The ta...

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    Website de busca de empregos 5 dager left
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    Preciso de um desenvolvedor fullstack angular + Java + Postgresql spring boot para criar um website de vagas de emprego. O sistema terá as seguintes funcionalidades: Segurança: Cadastro e Login com keycloak Administrador: cadastrar pacotes de acesso (depois será integrado com o meio de pagamento, não neste momento), gerenciar categorias de empregos, listar usuários e visualizar adesões de pacotes. Visão usuário: Aderir a um pacote de acesso, listar vagas existentes, cadastrar currículo usando formulário, um dos campos será o próprio currículo em PDF. Visão empresa: Cadastrar vagas de emprego, visualizar candidatos em uma determinada vaga

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    I'm seeking a talented and experienced developer for the creation of a business proposal management platform. This platform is specifically tailored to meet the needs of procurement teams within large organizations. Responsibilities: Incorporate a design from an existing wireframe and build the interface in React.js. Features: Create and verify user accounts Ability for user to log in, add authentication features See existing projects on a dashboard Create a new project Upload PDF documents, allow for secure storage and easy organization Send documents to an AI LLM API for processing (via Lambda) Handle results and store in PostgreSQL Implement secure payment systems and automatic notification features Provide scripts for provisioning resources in AWS Adhere to best practices fo...

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    Odoo Custom Module Development 5 dager left
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    I require an Odoo developer to create a custom module for my business. The primary goal of this module is to improve our data accuracy. The module should include the following: -User Management - Integration with other system to fetch data - Automate the work The module initially build using x-studio however require to do some modification and integration We are currently using odoo v15 The module should integrate seamlessly with our existing systems, primarily through API integration. A successful candidate should have experience in creating Odoo custom modules, a strong understanding of API integration, and a proven track record of improving data accuracy in previous projects.

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    Instagram Data Retrieval Tool 5 dager left
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    I'm seeking a skilled developer to create a web-based Instagram API. This tool will be used to retrieve and store as well as regularly refresh public data for users, their followers, and their activity without requiring any kind of user account level platform authentication. Key Requirements: - The tool will retrieve public user profile details, follower/following lists, and user posts and activities. - This will be a basic, scalable "querying" style tool - designed to retrieve data in bulk for many accounts. - The initial focus is on any available public data that does not mandate authentication or tokens. - Compliance with platform rules and API limits is a must while maximizing scalability Ideal candidate will: - Have experience with Instagram (and ideally similar influ...

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    I'm in need of a web-based multi SKU inventory software that primarily focuses on real-time inventory tracking. This software will be utilized by our warehouse staff to ensure products are correctly logged and easily retrievable. Key Features: - Real-time Inventory Tracking: The primary function of the system is to keep a close eye on the stock levels. - User-Friendly Interface: The software should be intuitive and easy to use for our warehouse staff. Integration: The system should have the capability to integrate with our accounting software. This is essential for keeping our financial records accurate and up-to-date. Ideal Skills and Experience: - Proven experience in developing inventory management software. - Familiarity with real-time inventory tracking. - Ability to integrate...

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    Desarrollador ODOO 4 dager left
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    Estamos buscando un desarrollador con experiencia en ODOO para unirse a nuestro equipo. El candidato ideal deberá tener sólidos conocimientos en el desarrollo de módulos personalizados, integraciones y personalización de ODOO. Será responsable de colaborar en el diseño, desarrollo e implementación de soluciones basadas en ODOO para satisfacer las necesidades de nuestros clientes. Responsabilidades: - Desarrollar módulos personalizados y realizar customizaciones en ODOO. - Colaborar en la integración de ODOO con otros sistemas. - Participar en el diseño y desarrollo de soluciones basadas en ODOO. - Realizar pruebas y depuración de código. - Mantenerse actualizado sobre las últimas tendencias y tecnol...

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    I'm looking for a skilled developer to create a custom appointment booking system, akin to popular solutions like Amelia, Bookingpress, or Calendly, using Svelte or Sveltekit. I do not have any fixed budget in mind, if you can provide quality we can adjust the budget accordingly. Key Features: - Online appointment scheduling - Seamless calendar integration - Automated reminders - Page creation Users: The system will cater to three distinct user types: - Customers: Those looking to book appointments - Service Providers: Entities offering services and managing their availability - Administrators: Responsible for overall system management Appointment Booking: - The primary booking method will be through a dedicated website. Ideal Skills & Experience: - Proficiency in Svelte/Svel...

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    I am looking for an experienced Full Stack developer with experience in TypeScript to rewrite the existing codebase of a web application. We have a copy of the old code base and all the tech stack interactions but require the code to be rewritten as we no longer have rights to the current webapp. Ideal Skills: - Proficient with TypeScript - Hosting with Vercel and Neon - Code review and improvement - Strong knowledge of software development principles and best practices. Please mention your relevant experience when bidding for the project and provide a brief explanation of how you plan to approach this task. Details will be ironed out once the freelancer has been chosen.

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    Instagram System 4 dager left
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    All the informations are there:

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    I need an experienced NextJs (ShadCn) + Prisma (Postgres) developer to build an E-commerce application within a week. Key Requirements: - I already have a DB schema for the App and all the flows mapped out - Need someone to build a test taking app - Users can create online test, generate links and take test using the application - The whole app will be less than 10 pages - The App will have a lot of funtionality like generating common test link, session specific test link, generating test scores/result, question bank support, dynamic questions... The ideal candidate should have: - Solid experience in NextJs, ShadCn, and Prisma. - Proven track record in E-commerce application development. - Ability to deliver high-quality work under tight deadlines. Please only apply if you are co...

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    Hola, quisiera un tutor/profesor para aprender a crear módulos en Odoo. Quisiera aprender creando módulos reales. Interesado en 2 o 3 veces por semana

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    HTML5 Casino Game to Flask Backend 3 dager left
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    I’m looking for a skilled developer who can convert my existing HTML5 Casino Game to an online Flask Backend. The backend should integrate with a PostgreSQL database. Key Functionalities: - User Registration and Login: Implement a secure user registration and login system that allows players to create accounts and access the game. - Game Settings Management: Develop a platform that can manage the game settings, with a particular focus on the Slot Machine settings. These include Win Occurrence, Free Spin, Balance, and other relevant parameters. - Database Integration: Connect the Flask backend to the PostgreSQL database so that it can store and retrieve the necessary game and user data. Ideal Skills and Experience: - Proficiency in Flask and PostgreSQL. - Previous experience in conv...

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    En nuestra empresa de Software, tenemos proyectos en Java, y necesitamos aumentar la fuerza de desarrollo, por ellos queremos sumar algunos freelance que trabajen por hora con nosotros

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    We are seeking a professional and experienced development team to build a comprehensive online marketplace for collectibles. The platform will include both web and mobile applications, providing users with the ability to buy, sell, trade, showcase their collections, and interact with other collectors. The project encompasses advanced features such as live sales, image recognition, and a robust community engagement system. Project Overview: Key Requirements: User Accounts and Profiles: Secure user registration and login Profile management with collection tracking and wishlists Customizable user profiles Product Listings: User-submitted items with high-resolution images, detailed descriptions, prices, and availability Categories and subcategories for easy navigation Advanced search and f...

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    Desarrollador Odoo Experto -- 2 1 dag left
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    El Desarrollador de Odoo Experto será responsable de diseñar, desarrollar e implementar soluciones empresariales utilizando la plataforma Odoo. Este rol requiere un profundo conocimiento de los módulos de Odoo y la capacidad de personalizarlos según las necesidades del cliente. Responsabilidades Clave: Desarrollo y Personalización: Diseñar, desarrollar y personalizar módulos de Odoo según los requisitos del cliente. Integración de Sistemas: Integrar Odoo con otros sistemas empresariales y aplicaciones de terceros. Migración de Datos: Planificar y ejecutar la migración de datos desde otros sistemas a Odoo. Soporte y Mantenimiento: Proporcionar soporte técnico y mantenimiento continuo de las implementaci...

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    Our development team just wrapped up front end development for a large-scale website. At this critical juncture, we're seeking advice to ensure that our back-end databases - PostgreSQL and Cassandra - will be optimally performing and highly available. Key areas of consultation include: - Performance optimization strategies - Replication and high availability options - Ideal design of databases to accommodate the scale of our website Ideal professionals would bear extensive experience with both PostgreSQL and Cassandra databases, as well as a keen understanding of integrating front-ends to back-end databases. Your prior work with large-scale website infrastructures will greatly benefit our project. Database optimization and design aptitude is a crucial requirement for this task.

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