Hire the best PostgreSQL developers & DBA

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based on 7,339 client reviews
  • $75 hourly
    I am passionate about bringing websites to life for my clients that reflect their brand, vision, and personality. One of the things I take most seriously is providing support throughout the entire journey and communicating clearly through the process! I have built a wide range of websites related to the following industries: psychology, authors, basketball leagues, fitness studios, coffee shops, equipment rentals, home defense, energy work, etc. Any chance I have an opportunity to work in a new field, I consider it a chance to become a better version of myself as I get to learn about something new! Webflow has become my CMS of choice! It allows me to build the client a completely custom design, while also giving the client the ability to maintain the site themselves moving forward! When I build a new website, I make them modern, clean, and bold. Depending on budget, I also offer branding, logo, and design packages as well! Reach out if you want to partner up and begin the journey of developing a new website with me!
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    Webflow
    Shopify
    Squarespace
    Wix
    Front-End Development
    Web Development
    jQuery
    React
    CSS
    Node.js
    PostgreSQL
    HTML
    JavaScript
    Responsive Design
  • $50 hourly
    Here is the list of skills I have much experience with: Languages: C#, PHP, Javascript Frameworks: ASP.NET Core, Symfony Relational DBMS: PostgreSQL, MySQL, SQL Server NoSQL: Redis, Elasticsearch Code principles: DDD, SOLID, GRASP, Unit tests Other: Docker, Azure Services, Git, Linux, REST, Swagger, RabbitMQ
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    Object-Oriented Programming
    Domain-Driven Design
    CI/CD
    Docker
    Symfony
    MySQL
    PostgreSQL
    PHP
    Redis
  • $30 hourly
    I am a senior Php(MySql), NodeJs developer with more than 8+ years of work experience. I have strong educational background featuring a degree in Computer Science. I have worked for great companies. Now I want to try on Upwork. My web developing expertise includes: Designing, building and maintaining web platforms. Strong database knowledge, specifically MySQL. Extensive knowledge of PHP(include frameworks), NodeJs.
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    MySQL Programming
    System Administration
    Bash Programming
    PostgreSQL
    MySQL
    JavaScript
    CodeIgniter
    Node.js
    Laravel
    PHP
  • $10 hourly
    I'm a software engineer, fluent in Python, Java, PHP, JS, CSS... I can make a website, tool, scraping script... from basic to advanced
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    Vue.js
    React
    Data Scraping
    Django
    Scrapy
    PostgreSQL
    Python
    JavaScript
    HTML
    CSS
  • $35 hourly
    Hello, I'm a python/Django developer with more than two years of applied programming, primarily as a freelancer. I'm an active contributor to multiple open-source python packages. I know that code is read much more often than written, so my primary focus is long-term maintainability. I can begin from scratch and deploy the solution following best practices. My favorite stack: * Python 3 (3.10 preferred) to power the whole world * Django & Django rest framework or Flask to be bare bones of an application * HTML5, SCSS and JS (+ jQuery) to achieve positive user experience * PostgreSQL and Redis databases to store the data * Amazon AWS EC2 as a server instance * Docker to ensure stability and reproducibility * Nginx to connect the app with the network * Pytest and coverage.py to catch the bugs * Mypy, flake8, and various linters with pre-commit to ensure code quality and readability I'm NOT ready to work with Windows development - I'd rather live without jumping through hoops for no reason. Hobbies and interests: blockchain, molecular biology, hiking. I'm always happy to discuss new ideas, so please feel free to contact me and ask your questions.
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    CI/CD
    Flask
    Python
    JavaScript
    Blockchain
    Bash
    Linux
    Redis
    Bootstrap
    Amazon EC2
    Django
    CSS
    PostgreSQL
    Web Development
    HTML5
  • $70 hourly
    I'm a professional software developer, who mainly works in Python, in particular my day-to-day job involves Django, PostgreSQL/SQLite, REST/GraphQL and DevOps tasks (CI/CD, Docker, etc.). I've written lots of little side projects in Python, so I have a pretty extensive knowledge in that area.
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    Automated Testing
    CI/CD
    RESTful Architecture
    Docker
    SQLite
    GraphQL
    Django
    Python
    PostgreSQL
  • $15 hourly
    I'm a full stack developer with about five years of experience in web and mobile development with JavaScript, HTML5, CSS3 and frameworks like VueJS, NextJS and React. Knowledge in REST API´s development using NodeJS, Express, AdonisJS and PHP with Laravel. Experience working with SQL and NoSQL Databases like PostgreSQL, MySQL and MongoDB.
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    PHP
    Git
    Laravel
    MySQL
    JavaScript
    Node.js
    Vue.js
    PostgreSQL
    MongoDB
    React
  • $45 hourly
    I always do my best to provide only excellent solutions with good timing, thus I: - pay high attention to details and requirements; - write clean and readable code; - test the final results; - make sure the delivery is on time. I specialize in Python, Flask, Django, OpenAI, LLM, JavaScript, Vue.js, Node.js, React, Angular, MySQL, and MongoDB. I know what frameworks work best for each project and make awesome things happen. Drop me a line and let's start working together.
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    CI/CD
    Selenium
    LangChain
    PostgreSQL
    MySQL
    Amazon Web Services
    SQL
    Flask
    Django
    Node.js
    JavaScript
    Python
    Docker
  • $70 hourly
    Hello, My name is Guillermo and I am a Full Stack Web Developer. I specialize in building web applications with React, Typescript, Node.js, and Python. I have extensive experience turning UI/UX designs into responsive and efficient web pages with modern frameworks such as Next.js, Django, and Remix. I can also work on building backend APIs with FastAPI/Express with SQL/NoSQL databases such as MongoDB and PostgreSQL. I am always learning and keeping up to date with the best practices for building web applications that scale efficiently and don't create technical debt for future developers. I am confident that I can be a part of your team of developers and can contribute right away. I can also come in as an engineer that can build a strong foundation for your web application. Let's work together to build the best web application possible! Guillermo.
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    DevOps
    Node.js
    React
    Django
    React Native
    Tailwind CSS
    Amazon Web Services
    Next.js
    JavaScript
    Python
    TypeScript
    API
    HTML
    CSS
    PostgreSQL
  • $33 hourly
    Greetings! My competency lies in standard Front and Back end technologies. Having 4+ years of experience, in designing and developing websites, with an understanding of the need to strike a balance between perfection and getting things done, I will be glad to invest my experience in your project. Clean, semantic, flexible, responsive, valid code - that's what I give to my clients when performing PSD/AI/AX/Zeplin/Figma to HTML services. With great attention to detail, I will provide you clean and user-friendly design within your time and budget. My aim is to provide quality work to clients and be honest in commitments. I'm in love with all the fancy stuff like CSS3 animations and transition, as well as Responsive design - Bootstrap/Tailwind/custom coded.
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    React
    Next.js
    Redux
    Bootstrap
    Tailwind CSS
    Vue.js
    PostgreSQL
    API
    Angular
    Laravel
    MySQL
    Responsive Design
    PHP
    JavaScript
    HTML5
  • $75 hourly
    Full Stack Software Developer and Project Manager with 10 years of experience. Working on different migration projects of core banking and insurance systems. Hands on mentality with a focus on code quality, unit testing, design and customer satisfaction.
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    Oracle
    Angular
    Drools
    OpenShift
    JavaScript
    Ionic Framework
    PostgreSQL
    Vaadin
    Jira
    Scrum
    SQL
    Spring Boot
    Java
    TypeScript
    Jenkins
  • $20 hourly
    🏆 TOP RATED PLUS Java/Spring & ReactJS Expert 🏆 ⭐️Schedule a FREE CONSULTATION by leaving a message to my account. 🚀 3,000+ Hours of Work Done in Upwork 🚀 30+ Projects Delivered 🚀⭐️Proven Expertise in :⭐️🚀 ✅ JAVA EE Development ✅ Spring / Spring Boot ✅ Spring Hibernate ✅ SQL ✅MySQL ✅PostgreSQL ✅OracleDB ✅MongoDB ✅ ReactJS Why should you work with me? I guarantee: ➤ Perform Your Project in Latest Agile Based Environment ➤ Dedicated Point of Contact ➤ Fast and Professional Work ➤ Attention to Details ➤ Meeting Deadlines Thank you for visiting my profile, I'm looking forward to working with you!
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    AWS Lambda
    Web Development
    MySQL
    Spring Framework
    JavaScript
    React
    Java
    Hibernate
    Bootstrap
    Spring Boot
    PostgreSQL
  • $50 hourly
    Software Engineer, with extensive experience developing mobile and web applications from the ground up. Comfortable working on all aspects of the full-stack, from UI design and implementation on the front-end to API and database integration and development on the back-end. Back-end development specialities include API integration and development with GraphQL, RestAPIs, and authentication providers. Adept at both developing and maintaining highly scalable database solutions using PostgreSQL, MySQL, SQLite and DynamoDB amongst others. Multiple years of experience working with CMS providers such as WordPress and Strapi developing custom blogging platforms and eCommerce sites. Front-end development specialities include React and React Native development, UI and UX design, and native web development using HTML, CSS, JS and TypeScript. Developing many projects past launch, I have thoroughly studied SEO and ASO, using this to develop applications that are optimized. I have a First-Class Computer Science Degree from the University of St Andrews. Previously, I have worked in the Aerospace & Defence Industry, a sector where bad habits and low-quality code are simply not an option; a mentality that I maintain when working for my own clients. I am a relatively new freelancer, but I have had plenty of experience delivering high-quality software throughout my career. Thank you for taking the time to read this far. Expertise: React and React Native || HTML || CSS || JS || PostgreSQL || DynamoDB || WordPress || Strapi || GraphQL || RestAPI || Postgraphile || React Apollo || AWS Architecture || API Integration || SEO || ASO || Authentication APIs
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    Amazon DynamoDB
    PostgreSQL
    MySQL
    Website Maintenance
    TypeScript
    Web Development
    React
    Node.js
    Next.js
    Firebase
    API Development
    React Native
    HTML
    Android App Development
    JavaScript
    iOS Development
    WordPress
    API Integration
  • $27 hourly
    Hello! I am a senior web and mobile developer with a proven record of delivered top-notch development solutions using modern web technologies. I have extensive experience in the usage of JavaScript and its most popular frameworks and libraries. I build a robust backend core using Node.js (Express/Hapi), as well as I use Webpack module bundler and have a clear understanding of RESTful API technology. I have unsurpassed skills and experience with React.js (including React Hooks) + Redux for state management, as well as with building a SPA using Vue.js + Vuex. In addition, I use JavaScript libraries like jQuery, Backbone.js, Moment.js, D3.js, etc. Besides, I have a good command of HTML5/CSS3, responsive & adaptive web design, pixel-perfect layout, and preprocessors like LESS / SASS. Additionally, I have solid knowledge and experience in PHP programming language. Among PHP frameworks, I mostly use Laravel as it offers the best performance, features, and scalability. I have experience in working with Yii and Symfony frameworks as well. I have a great knowledge of MySQL, PostgreSQL, MongoDB, and have experience in designing database architecture that meets the project needs. Also, I’m experienced with Amazon Web Services infrastructure (EC2, S3, SNS, Lambda) and have DevOps skills. In my experience, I practiced Agile (Scrum, Kanban) project management methodology. I always tend to use modern task management systems (Trello or Jira), as well as GIT is mandatory for me. I can collaborate with a team as well as I’m always ready to work independently and provide my daily status reports. Looking forward to discussing your project!
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    Backbone.js
    Vue.js
    CSS
    HTML
    Twitter/X Bootstrap
    Git
    jQuery
    PostgreSQL
    Laravel
    JavaScript
    MySQL
    SCSS
    PHP
    React
    Vuex
  • $20 hourly
    Hi there, If you are looking for Expert in Java / Spring Developer with 5+ years of professional experience in Web Development Experienced in full lifecycle development across multiple applications. I possess a board range of technical skills which I update on a regular basis, allowing me to respond to new issues with considerable speed. If you have an interesting start-up project or you want to improve your existing Java applications then I am ready to help you! I have good communication skills and friendly developer, was working in Agile team and delivering features on a weekly basis. Technology Stack / Tools I have experience with: - Design patterns and Clean Code Structure: SOLID, Singleton Pattern - Frameworks: Spring Framework, Spring Boot - ORM: JPA, Hibernate, JDBC - Databases: PostgeSQL, Oracle, MySQL - Messaging Queue: Kafka, RabbitMQ - Caching: Redis - Build Tools: Maven - Frontend: HTML, CSS, React js - Version Control System: Git, GitHub, GitLab - Documentation: Swagger, Postman - Continious integration: CI/CD, Jenkins - Containerization Platform: Docker - Test: JUnit 5 / Mockito - Architectures : Monolithic, Microservices - Other Technologies: Spring MVC / Spring Data / Spring Security / Spring Web Services / Spring JSP / Servlet API / Spring Cloud / OAuth 2.0 / AWS / WebSocket - Other language : C++ core, Python basics I focus on work that I can be proud! I’m looking forward to work with You. Feel free to invite me to your projects and discuss it further. Regards, Firdavs
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    Front-End Development
    Problem Solving
    Communications
    Spring Framework
    Spring Boot
    Spring MVC
    Spring Security
    Hibernate
    Database
    PostgreSQL
    Java
    JDBC
    RESTful API
    Git
    MySQL
  • $40 hourly
    Introducing myself, an exceptional Python developer with 5 years of experience in backend web development. I have extensive expertise in creating efficient and robust systems using Django, Django Rest, Flask, FastAPI, SQLAlchemy and GraphQL. I am also skilled in utilizing Celery, Redis, and Dramatiq to optimize performance and ensure smooth operation. My knowledge of databases such as PostgreSQL, MySQL, SQLite, and Big Query allows me to handle complex data management and analysis. Additionally, I am familiar with front-end technologies, including HTML5, CSS3, and Bootstrap, and have experience working with React for creating user interfaces. I am well-versed in using various tools such as Git, Docker, GCP, FCM, AWS, S3, Elasticbeanstalk, AWS SNS, AWS SES, AWS Lambda, Azure, Stripe, Paddle, and Wise payment systems (as well as others), Mailchimp, Twilio, WhatsApp API, JIRA, and Asana. In addition to my professional experience, I have also completed my Master's degree at the Faculty of Computer and Information Science at the American University of Armenia, which has equipped me with advanced knowledge and skills in computer science. As a highly adaptable individual, I am capable of learning quickly and keeping up with the latest industry trends and technologies. I am an open-minded individual who welcomes new challenges and opportunities for growth. Overall, my expertise in web development, combined with my strong educational background, makes me a valuable asset to any project. I am eager to contribute my skills and knowledge to new and exciting ventures. I am proud to say that in my 5 years of experience as a Python developer, I have completed over 15 projects where I handled the backend development entirely on my own. These projects are currently live and running successfully. My experience in creating efficient and reliable backend systems using Django, Django Rest, and GraphQL, along with my expertise in utilizing Celery, Redis, and Dramatiq, has enabled me to create high-quality applications that are both scalable and performant. I am passionate about my work and always ensure that the projects I work on meet the highest standards of quality and functionality. With my skills and experience, I am confident in my ability to tackle new challenges and deliver exceptional results.
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    Amazon S3
    Stripe
    Amazon Elastic Beanstalk
    Firebase
    Google Cloud Platform
    Amazon EC2
    GraphQL
    Git
    Django
    Docker
    GitLab
    PostgreSQL
    Python
    Redis
  • $20 hourly
    Hello, my name is José García. I am a Full stack developer. I love technology and process automation. • About 4 years of experience in designing, developing web applications using JAVACRIPT, JQUERY, HTML5, CSS3, React JS, and JSON, I know AWS EC2, S3. • Experience creating and consuming web services (REST) with WEB API. • Extensive experience in developing web pages using HTML5, CSS3, JavaScript, React JS, Redux, Bootstrap, Node.js, Express, Mongo, Ajax, Amplify, Graphql. • Expertise in developing the SPA React using ,components, TypeScript. • Good Expertise in analyzing the Document Object Model (DOM) Layout, DOM Functions, and JavaScript functions, Cascading Styles across cross-browser using Developer Tool Bar. • About 3 years of experience in backend using NODEJS with and without frameworks such as ExpressJs, Adonis. • 3+ years of experience with database development and management SQL y NoSQL, as MySQL, PostgreSQL, MongoDB.
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    React Bootstrap
    Redux
    Website Security
    Web Application
    API Integration
    API
    AngularJS
    React
    Laravel
    Vue.js
    PHP
    JavaScript
    MySQL
    MongoDB
    PostgreSQL
  • $25 hourly
    Hi there, If you are looking for an Expert in Java / Spring Developer with 5+ years of professional experience in FinTech, E-commerce, or Web Service Development then you are at the right place! 2700+ Upwork Hours! Experienced in full lifecycle development across multiple applications. I possess a broad range of technical skills which I update on a regular basis, allowing me to respond to new issues with considerable speed. I was working in FinTech and E-commerce companies with clients from the USA, Singapore, and Europe. Developed complex web applications using Java, and Spring. Additional skills used during projects: Data modeling and data access patterns / Queues (AWS SQS) / AWS / Auth0. If you have an interesting start-up project or want to improve your Java applications, then I am ready to help you! I have good communication skills and friendly developer, I work in an Agile team and deliver features on a weekly basis. Technology Stack / Tools I have experience with: - Languages: Java SE, Java EE, JavaScript, C++, C# - Frameworks: Spring Framework, Spring Boot - ORM: JPA, Hibernate - Databases: PostgreSQL, MySQL, MongoDB - Build Tools: Maven, Gradle - Version Control System: Git, GitHub, GitLab, BitBucket - Other Technologies: Spring MVC / Spring Data / Spring Security / Spring Cloud / Spring Web Services - Platforms: AWS, DataDog, Atlassian, BlueBooklona, Synapse, I2C, Evolve, Mambu, and others. I focus on work that I can be proud of! I’m looking forward to working with You. Feel free to invite me to your projects and discuss them further. Regards, Oybek
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    Hibernate
    Software Architecture & Design
    Microservice
    Spring Framework
    API Development
    Spring Data
    Database
    Spring MVC
    Java Persistence API
    Java
    RESTful API
    Front-End Development
    Spring Boot
    Spring Security
    PostgreSQL
  • $25 hourly
    Full Stack Developer with 19+ years of experience. Developed modules/applications in .Net and Java frameworks for both large scale enterprise products and medium scale web applications. Skill Set ✔ Front-end: MAUI, .Net Blazor, Vue js, React.Adobe Flex ✔ Back-end: .Net, Java, Kotlin, Spring Boot, ✔ Databases: MySQL, SQL Server, PostgreSQL, Mongo, Redis ✔ Dev-ops: Git,. Dockers, CircleCI, AWS, Azure ✔ Scrum: Atlassian Jira, Confluence,
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    Adobe Flex
    Vuetify
    PostgreSQL
    Java
    Kotlin
    Vue.js
    Spring Boot
    React
    AWS Amplify
  • $30 hourly
    Full-stack/blockchain developer with over 4 years of working experience. Tech Stack: •Python, Django, Django Rest Framework, Tornado, Pydantic, FastAPI •C#, .NET, ASP.NET MVC •PostgreSQL, MongoDB, SQL Server, Firebase •JavaScript, Typescript, Node.js •REST API, GraphQL •HTML, CSS, Tailwind CSS •AWS, Docker, Heroku, Kubernetes, Redis •Pytest, Nock, Chai •Vue.js, React.js, Next.js •Solidity, Truffle, OpenZeppelin •Unity •NinjaTrader, PineScript, MetaTrader4
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    Django
    React
    Heroku
    Docker
    PostgreSQL
    TypeScript
    Python
    JavaScript
  • $100 hourly
    Software Engineer | Full Stack Web Developer | Application Consultant I am a Senior Full-stack Web Developer, with over a decade of experience working with cutting-edge languages and programming techniques. I enjoy taking on challenging projects which require the use of the most advanced languages and development techniques. I am adept at innovative problem solving and developing high-quality code. I excel at web application development, including coordinating ground-up planning, programming, and implementation of the core modules. I am self-disciplined and able to work independently or as part of a cross-functional team. As an Upwork Freelancer, I have worked on a variety of projects for a wide range of clients, assisting them with their business needs by creating innovative and cutting-edge web applications. These include: • Developing several applications using Ruby on Rails and other software development tools • Collaborating with several organizations’ in-house software teams to create online applications and tools • Providing consulting services in addition to development services, assisting businesses to optimize the software applications and their online presence • Working on other Key Projects including AWS services, Heroku, Database (PostgreSQL) optimization, and Facebook API integration My Skills & Competencies Are: Ruby on Rails • PHP • GoLang • Project management • MySQL • PostgreSQL MongoDB • Docker • API Development • HTML • CSS • SDLC • Java Script jQuery • Agile Development • AWS • Payment Gateway Integration • Perl I have the following certifications CIW Web Development • CIW Web Design Specialist • CIW JavaScript Specialist CIW Database Design • CIW Perl Specialist • CIW Web Foundations CompTIA A+ • CompTIA Security+ • CompTIA Project+ • CompTIA Network+
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    Ruby
    Web Development
    HTML
    PostgreSQL
    API Development
    Payment Gateway Integration
    Systems Development Life Cycle
    JavaScript
    Agile Software Development
    Ruby on Rails
    CSS
    Heroku
    Relational Database
    Amazon Web Services
  • $35 hourly
    - Experienced Node developer with extensive knowledge of frontend frameworks like Angular2+, ReactJS - Certified AWS developer having familiarity with AWS architecture and serverless framework. - Experience with event-driven Serverless applications using AWS Lambda, DynamoDB, SES, SNS, SQS etc. - Experience with CI/CD pipeline to serve a wide range of architectural patterns, from EC2 to Serverless. - Very good understanding of programming algorithms and best practices and always follow it in code.
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    Infrastructure as Code
    Elasticsearch
    Node.js
    GraphQL
    AWS AppSync
    PostgreSQL
    CI/CD
    Redis
    Serverless Computing
    AWS Application
    Docker
    Data Scraping
    AWS Lambda
  • $80 hourly
    Greetings! I'm an accomplished Full Stack .NET Developer, specializing in leading development projects across web and desktop platforms for over a decade. With experience working with everything from promising startups to high-profile enterprises, I have a proven record of delivering robust, scalable, and efficient solutions to meet the varying needs of the e-commerce, healthcare, insurance, and cryptocurrency industries. In my career, I've not only mastered a diverse set of technologies but also developed the crucial ability to quickly identify and effectively address business needs. I believe in software that not only works flawlessly but is also easy to maintain and scale. I thrive in team environments, fostering collaboration, and driving us towards our shared objectives. I have worked extensively with the following tools and technologies: Languages: C#, Python, SQL, JavaScript/ES6, TypeScript Frontend: React, React Native, Blazor, Angular, Flutter, Tailwind CSS, jQuery, SignalR, Kendo UI, Knockout, Ajax, HTML, CSS, LESS, Bootstrap, ASP.NET, ASP.NET MVC, ASP.NET WebForms, Razor Pages, Telerik Rad Controls Backend: .NET Core, ASP.NET Web API, ASP.NET MVC, Docker, Kubernetes, Elasticsearch, RabbitMQ, NATS DBMS: SQL Server, PostgreSQL, DynamoDB, SQLite, Redis, T-SQL, LINQ, Entity Framework, ADO.NET, Dapper Testing: NUnit, XUnit, MS Test, Moq, Specflow, Selenium Cloud: Azure Portal, Azure DevOps, AWS Desktop: Windows Forms, WCF, P/Invoke Operating Systems: Windows, macOS, Ubuntu Version Control: Git, GitHub, Azure DevOps, Bitbucket, GitLab Reporting: MS Reports, Telerik Reports, DevExpress Tools & technologies: Docker, JIRA, Confluence, FFmpeg, Visual Studio, ReSharper, Visual Studio Code, Rider, WebStorm, DbForge, VirtualBox, VMWare I am eager to bring my technical expertise and leadership skills to your next project, as I'm certain that I can help it meet its objectives and exceed expectations. I'm looking forward to exploring new challenges and how we can navigate them together.
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    Blazor
    API
    Angular
    ASP.NET
    Amazon Web Services
    TypeScript
    Python
    Docker
    C#
    SQL
    React
    JavaScript
    PostgreSQL
    Microsoft SQL Server
  • $35 hourly
    Hello, I'm Ratnakar, a committed and independent full-time Ruby on Rails Developer on Upwork (Top Rated Plus). I am currently seeking long-term collaborations with clients. My experience includes working full-time with multiple global companies through Upwork from 2014. As a dedicated and Senior Ruby on Rails developer, my expertise encompasses a broad range of web development areas. This includes proficiency in front-end JavaScript and back-end Ruby, along with the development of comprehensive web platforms and APIs for mobile applications & front end applications, all utilizing the latest technologies. With more than 8 years in software development, I have successfully delivered a wide range of projects across various industries, consistently achieving client satisfaction and project objectives. Here are some key strengths that characterize my work: ✦ Ruby on Rails: MVC architecture, RESTful APIs, ActiveRecord, testing frameworks (RSpec) ✦ Database: PostgreSQL, MySQL, MongoDB ✦ Javascript, Jquery, AngularJS, React ✦ Hotwire Turbo, Stimulus ✦ Deployment: Heroku, AWS, Digital Ocean ✦ Elastic Search ✦ Sidekiq, Redis ✦ Third-party and RestFul API integration ✦ HTML, CSS ✦ Github, Bitbucket ✦ Jira, Trello, Pivotal ✦ Shopify Apps, Liquid Templates ✦ Sharetribe Marketplace Please feel free to reach out to me, and I would be delighted to discuss your requirements in detail.
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    Heroku
    Sharetribe
    Elasticsearch
    GitHub
    Database Architecture
    Twilio API
    Redis
    Web Application
    JavaScript
    API Integration
    MySQL
    PostgreSQL
    React
    Ruby on Rails
    Ruby
  • $50 hourly
    FullStack Software Engineer with comprehensive knowledge in Web development and experience in building projects from scratch to success. Have strong expertise in Rails with 7+ years of active commercial practice. Skilled in maintaining applications with wide microservice infrastructure and making architecture solutions for small and big projects. Worked in TDD and BDD methodologies. Respectfully tested and well-documented code. Good communication skills and a capable team player.
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    Docker
    PostgreSQL
    Amazon EC2
    CI/CD
    MongoDB
    AngularJS
    Kubernetes
    Ruby
    API
    Ruby on Rails
  • $60 hourly
    Senior full-stack developer, 7 years of experience I'm here for a full time support for each of my customer. My main skills are: - Node.js (especially Nest.js framework) - Work with databases such as PostgreSQL, MySql (MariaDB) and MongoDB - Setting up development, beta and production environments on servers with help of Docker and Nginx technologies - Front-end development with help of React.js or Angular frameworks - Cross platforms mobile apps with help of Flutter or React Native frameworks - Also my non IT skills are: quick learning, punctuality in what I do and willingness to work About my past positions: I was team leader of dev team in 2 companies. In my duties were things like code review, tasks management, production deploy and customer negotiations. If you are afraid about communication, don't be, we can understand each other in English, Romanian or Russian. I'm waiting for you
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    Software Architecture & Design
    API
    Database Architecture
    Docker
    Solidity
    Angular 6
    web3.js
    Database
    MySQL
    PostgreSQL
    React
    TypeScript
    Flutter
    React Native
    Node.js
  • $120 hourly
    I'm a developer with experience across many industries and technologies, having worked in IT for more than 20 years. My attention to detail, passion for coding and quick understanding of your domain help me to very successfully develop and consult on any kind of application. Whether you have detailed specifications and need them coded or require a guide through the whole software development process, I can help you. At any stage you will receive advice from me to make your project successful. I'm currently specializing in: - Single Page Application (SPA) development with React.js / JavaScript - Server side development with Node.js / JavaScript - Any database related work or consulting for PostgreSQL - Cloud infrastructure in AWS
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    PostGIS
    Database Optimization
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PostgreSQL FAQs

What is PostgreSQL?

In the world of databases, PostgreSQL (pronounced Post-gress-cue-el) is the most advanced and extensible of the major RDBMSs. What separates PostgreSQL from alternatives like MySQL and SQLite is its support for concepts from object-oriented programming. This makes it well suited to handling some of the most complex and high-volume data operations in the world, which is why it’s been trusted by Facebook, Skype, Apple, Instagram, Yahoo!, as well as a number of financial institutions, telecom services, and government agencies, including the US State Department.

If you need a database installation capable of supporting multi-petabyte databases and processing billions of events per day, PostgreSQL may be just the ticket.

The main thing to know about PostgreSQL is that it’s an object-relational database. As with a vanilla relational database, an object-relational database stores data in tables that can be queried using a language like SQL. The difference is that it also introduces some concepts from object-oriented programming that you don’t find in other relational databases, including user-defined objects and table inheritance. Other features include:

  • PostgreSQL supports truly massive databases. In fact, there’s no maximum database size in PostgreSQL, and individual tables can be up to 32 terabytes a piece with upwards of 250 columns. Even individual fields can contain up to a gigabyte of data.
  • It’s also ACID Compliant by default. Other RDBMSs can be made ACID compliant with certain extensions (MySQL, for instance), but PostgreSQL is designed for it out-of-the-box.
  • It has a high level of programming language support on the server side. Out of the box it supports Python, Perl, and Tcl, and can be extended to work with C, C++, R, Ruby, Java, Javascript, .NET, and more.

When should you consider switching to PostgreSQL? Before we get to that, you might ask yourself three questions to help figure out if it’s right for you:

  • Is your data complex? (Ie, do you have exotic data types like JSON objects, geometric objects, or IPv4/6 addresses? Do you need support for data structures composed of other objects?)
  • Do you have a lot of it? (Ie, do you need to process millions or even billions of events per day or do you need to store petabytes worth of data?)
  • Do you care a lot about data integrity and compliance? (Ie, do you need out-of-the-box ACID compliance and support for additional constraints, like primary and foreign keys, unique constraints, not-null constraints, etc.?)

If you answered yes to these questions, then PostgreSQL could be worth talking to a PostgreSQL expert.

PostgreSQL vs. MySQL

Choosing a database management system comes down to deciding between a few key tradeoffs: Do you want a database that has more features but might require more work on your end, or do you want something that’s easy to set up and use but which might place some constraints on what kind of data you can store and what you can do with it. In the world of SQL databases there are a few standouts, and today we’re going to look at two of them: PostgreSQL and MySQL.

There’s a lot of overlap between MySQL and PostgreSQL, but developers on these database platforms may have divergent skill sets. MySQL developers are more likely to have experience building databases to support web apps, multimedia sites, and e-commerce platforms. If part of your product is your data–if you’re building a recommendation engine, for example, or need to perform complex analytics–then you’re probably looking for someone with PostgreSQL experience.

MySQL overview

What makes MySQL the go-to option for so many people? In short, it’s kind of the Goldilocks option among SQL platforms: While not as feature-rich or extensible as PostgreSQL, it has just the right balance of features and capabilities that it’s just right for a wide variety of applications.

Some of MySQL’s key features:

  • It’s widely used and easy to set up.
  • It’s reasonably flexible and highly scalable.
  • It’s extremely fast, especially for highly concurrent, read-only operations. This makes it a very good tool to work with many BI applications.
  • It’s platform independent and cloud-ready. No matter how your operation works you’ll be able to get MySQL up and running on it.
  • It’s partially SQL compliant.
  • The InnoDB engine adds ACID compliance and multiversion concurrency control.
  • It may be easier to find support for MySQL since there are so many developers who have experience using it.

MySQL, Oracle, and MariaDB

Oracle acquired MySQL in 2010 and while it remains the most popular open-source database platform, there have been concerns among some developers about MySQL’s ongoing support and status as an open-source project moving forward. After the Oracle acquisition, a number of the original MySQL developers created a new fork of MySQL called MariaDB.

Their close kinship means MariaDB has many of the same advantages as MySQL, and it maintains a high level of drop-in compatibility, meaning MySQL developers interested in switching over may do so without losing much (or any) functionality.

PostgreSQL overview

If MySQL is a highly fuel-efficient mid-market sedan, PostgreSQL is sort of like a diesel-powered off-road jeep. It has more capabilities and support for extreme use cases, but it’s probably not necessary if you’re going to the grocery.

Here are some of PostgreSQL’s key features:

  • It’s object-relational. Unlike pure RDBMSs, PostgreSQL borrows some concepts from object-oriented programming, including user-defined objects and table inheritance.
  • It’s optimized for complex queries. PostgreSQL excels when performing complex read-write operations with data that needs to be validated, but it can lag somewhat when it comes to read-only operations.
  • It’s mostly SQL compliant. Out of 179 core features of the SQL standard, it meets 160 of them, plus a number of optional features.
  • It supports exotic and custom data types. PostgreSQL provides native support for a huge number of data types by default, including JSON, XML, and H-Store, making it one of the few relational database with wide support for NoSQL features.
  • It’s built for truly massive databases. In fact, there’s no maximum database size in PostgreSQL, and individual tables can be up to 32 terabytes a piece with upwards of 250 columns. Even individual fields can contain up to a gigabyte of data.
  • It uses multiversion concurrency control. MVCC allows multiple readers and writers to work on the database at the same time, rather than enforcing a read-write lock policy.
  • It’s transactional and ACID compliant. Among database platforms, PostgreSQL is known for protecting data integrity at the transaction level. This makes it less vulnerable to data corruption than some other platforms. It’s supported by an active dev community that regularly adds new features. That said, it is less popular than MySQL, which can make finding a managed PostgreSQL instance more of a challenge.
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