PostgreSQL Developers

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Meet our Developers

Hi! I’m Jan Kowalski. I'm a Full Stack Developer and have 8 years experience. I am interested in a new challenge and an opportunity to use my skills and experience in a different capacity than I have in the past, a job with more responsibility that could allow me to use and further develop the skills that I have mentioned. I am open to challenges and learning new things. My strong programming skills are HTML, CSS, JavaScript, React, Typescript, Angular, Vue.js, jQuery, from Back end I’m experienced in Ruby, PHP, Python, Django, C#, Perl, Java, Golang, SEALA, Django Laravel, Spring, Express, etc. Except for the mentioned technologies I’ve also worked with such design tools as Figma, Sketch, InVision, Adobe XD, Canva, Photoshop. Also, some APIs I’ve used are Google Maps, Twitter, Facebook, Amazon S3, Open Weather Map, Shyscanner, Flight Search, etc. Databases I’ve used are MySQL, MongoDB, Oracle, Postgre SQL, Microsoft SQL, MariaDb. I can build virtually anything you may need. My 8+ year software development experience includes a wide range of different solutions: from one-page websites to complex data-oriented applications, from healthcare to gaming. Thank you for your time and consideration. Please let me know if there is anything further you need from me.

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • Foundation
  • UI / UX
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • Codeigniter
  • Object-oriented Programming (OOP)
  • SEO
  • SVG
  • C++
  • C#
  • Java
  • Python
  • Ruby
  • Jade
  • Web Developers
  • Software Developers
  • Software Engineer
  • Front-end developer
  • Back-end developer
  • .NET developer
  • Game Developer
  • 3D Animator
  • Motion Graphics Designer
  • Mobile Developer
  • Designer
  • Mendix Developer
  • QA
  • Data science
  • Flutter
  • DotNET
  • Blockchain
  • XHTML
  • Vue.js
  • IoT
  • Augmented
  • GraphQL
  • Hadoop
  • Yii
  • Mern
  • VR
  • Software QA
  • Digital marketing
  • MATLAB
  • Powershell
  • Assembly
  • MQL4
  • Desktop
  • W3E
  • Delphi
  • PineScript
  • Metatrader
  • Binance
  • AutoHotkey
  • DAT
  • Icon
  • UAT
  • Data
  • Typography
  • Business card
  • Simplicity
  • Rchain
  • Vyper
  • Rholang
  • Erlang
  • CoffeeScript
  • Microsoft Access
  • CRO
  • Lisp
  • Shell
  • SAS
  • Code
  • Haskell
  • MODX
  • Perl
  • GO
  • Scala
  • Microsoft power BI
  • Network
  • Squarespace
  • Volusion
  • Big Cartel
  • Shopware
  • Ecwid
  • Webflow
  • Project management
  • Swift
  • Flutter Dart
  • Apache groovy
  • Clojure
  • Julia
  • Crystal
  • R
  • Fortran
  • COBOL
  • Elixir
  • Hourly Rate$26 / Hr
  • Total Earned$18788
  • Experience8 Years

Hi There! My name is Anna. I am a Full Stack Developer with 8 years of working experience , ready to bring the best of my capabilities to the table for covering each of your project / business needs.

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • UI / UX
  • React js
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Shopify
  • Woocommerce
  • Laravel
  • SEO
  • C++
  • C#
  • Java
  • Python
  • Game Developer
  • 3D Animator
  • Motion Graphics Designer
  • Mobile Developer
  • QA
  • Flutter
  • Blockchain
  • XHTML
  • Vue.js
  • GraphQL
  • SAS
  • GO
  • Squarespace
  • Shopware
  • Webflow
  • Elixir
  • Mongodb
  • PostgreSQL
  • Firebase
  • Gatsby
  • Next.js
  • Flask
  • Nuxt.js
  • Django
  • Stripe
  • Hourly Rate$25 / Hr
  • Total Earned$0
  • Experience8 Years

I am a full-stack developer several years professional experience. I consistently work on the backend, frontend, databases, and other sysadmin work, with the frontend being my strongest role. I have built various chrome extensions that communicated with multiple public APIs, including performing OAuth flows when necessary. This extension was successful and is currently being used by ~90% of the entire Google Cloud sales staff. As a Full Stack JavaScript Developer, I've written large applications in Vue, React, and vanilla JS. I'm comfortable discussing tradeoffs, antipatterns to avoid that will bite you in the future, and writing good, clean code. I have very good experience and worked on several projects with reactjs, react-native and GraphQL.

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • Foundation
  • UI / UX
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • Codeigniter
  • Object-oriented Programming (OOP)
  • C++
  • C#
  • Java
  • Python
  • Ruby
  • Hourly Rate$31 / Hr
  • Total Earned$28521
  • Experience10 Years

I am a highly experienced Website and Mobile Developer and Engineer having over 6 years development experience.I have worked for number of companies and individual clients, developing a wide range of websites using MySQL, HMTL, HTML 5, DHTML, ASP, J2EE and MSSQL including sites and systems. I provide most creative, modern and high-tech solutions to your web design and programming needs. I have great experience in Linux, Apache, MySQL and PHP / Perl. (Also known as the LAMP stack.) I adhere to industry best practices, and bring to your projects the disciplines of MVC framework design patterns such as CodeIgniter in PHP, Git version control, and project management systems such as Jira, Unfuddle, and Trac. I've been using Python frameworks (like TurboGears2, Flask or Django) for web development , I'm also very capable of working on a more traditional stack using WordPress, Drupal or CodeIgniter. I can do frontend development also using HTML/CSS and I'm particularly fond of jQuery for AJAX behavior and in-browser animation

  • HTML5
  • JavaScript
  • Node js
  • PHP
  • Hourly Rate$35 / Hr
  • Total Earned$3440
  • Experience6 Years

I am a full stack developer who works with both the front and back ends of a website or application with 7 years experience Below are the skills and knowledge that I have as a Full Stack Developer; • Successfully designed and delivered 120 mobile applications and REST APIs to support 5 million requests monthly • Reduced time to market from several days to less than 10 hours by creating and executing a suite of Ruby-based automated build tools • I've developed multiple WordPress sites with WooCommerce, Divi, Brizy and published them on live hostings. • Developed a highly visible web-app for the people operations team to manage all information related to the organization from structure to compensation to performance feedback using a Vue Front-end and a Node backend with a MySQL database. •I have designed and developed front-end and back-end applications utilizing React.j, Node.js, and TypeScript . My skills in Front-end Languages include MEAN, Swift IOS, Kotlin, React, JavaScript, TypeScript, HTML, CSS, Vue,CSS3, Responsive Design, jQuery, Elm, Swift, SASS and my Back-end Languages include Nodejs, Express, PHP, MySQL, JavaScript, Python, C#, Ruby, Java, Django, C++.

  • HTML5
  • CSS3
  • JavaScript
  • jQuery
  • Ajax
  • Bootstrap
  • Foundation
  • UI / UX
  • React js
  • React Native
  • ANGULAR 2
  • ANGULAR 4
  • ANGULAR 1
  • Node js
  • Wordpress
  • PHP
  • MySql
  • Magento
  • Opencart
  • Shopify
  • Woocommerce
  • Laravel
  • Codeigniter
  • Object-oriented Programming (OOP)
  • SEO
  • SVG
  • C++
  • C#
  • Java
  • Python
  • Ruby
  • Jade
  • Web Developers
  • Software Developers
  • Software Engineer
  • Front-end developer
  • Back-end developer
  • .NET developer
  • Game Developer
  • 3D Animator
  • Motion Graphics Designer
  • Mobile Developer
  • Designer
  • Mendix Developer
  • QA
  • Data science
  • Flutter
  • DotNET
  • Blockchain
  • XHTML
  • Vue.js
  • IoT
  • Augmented
  • GraphQL
  • Hadoop
  • Yii
  • Mern
  • VR
  • Software QA
  • Digital marketing
  • MATLAB
  • Powershell
  • Assembly
  • MQL4
  • Desktop
  • W3E
  • Delphi
  • PineScript
  • Metatrader
  • Binance
  • AutoHotkey
  • DAT
  • Icon
  • UAT
  • Data
  • Typography
  • Business card
  • Simplicity
  • Rchain
  • Vyper
  • Rholang
  • Erlang
  • CoffeeScript
  • Microsoft Access
  • CRO
  • Lisp
  • Shell
  • SAS
  • Code
  • Haskell
  • MODX
  • Perl
  • GO
  • Scala
  • Microsoft power BI
  • Network
  • Squarespace
  • Volusion
  • Big Cartel
  • Shopware
  • Ecwid
  • Webflow
  • Project management
  • Swift
  • Flutter Dart
  • Apache groovy
  • Clojure
  • Julia
  • Crystal
  • R
  • Fortran
  • COBOL
  • Elixir
  • Mongodb
  • PostgreSQL
  • OCaml
  • SQLite
  • Apache Cassandra
  • Elasticsearch
  • Firebase
  • Bash
  • Firestore
  • DynamoDB
  • VBA
  • Redis
  • MariaDB
  • Phoenix
  • Gatsby
  • Blazor
  • FastApi
  • Svelte
  • Next.js
  • Google-cloud
  • Pandas
  • Flask
  • Nuxt.js
  • Django
  • SEO-audit
  • Stripe
  • Hourly Rate$25 / Hr
  • Total Earned$15025
  • Experience7 Years

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Customer Reviews

Carlos Leon

Hourly Rate30$ /Hr

Projects Done22

Reviewed by Cindy Nelson

Costa helped out a lot, was involved in the process and updated us with news if necessary, I am satisfied!

Jose Cancelo

Hourly Rate20$ /Hr

Projects Done21

Reviewed by Ian Carroll

Awesome job and fantastic result. Jose is professional in his field and knows what he is doing.

Jose Cancelo

Hourly Rate20$ /Hr

Projects Done21

Reviewed by Matthew Hill

Extremely talented and capable of delivering all features as promised.

Zale Condos

Hourly Rate27$ /Hr

Projects Done10

Reviewed by Erin Morgan

Thank you, beautiful job. I love the way Zale is handling his projects.

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Hire PostgreSQL Developer

Looking for a SQL freelance developer for your PostgreSQL project? You’re in the right place. Hire PostgreSQL developer with ITHire. 

What Is PostgreSQL? 

The PostgreSQL database program is a computer software that allows data to be stored. It's one of the most popular database programs currently in use, and it's commonly used by websites and apps to store user information. It is free and open source software. This implies that anybody may use it for any purpose. The PostgreSQL License, like the BSD license, is a permissive open-source license. You can learn more about PostgreSQL in their developer’s guide.

What Are the Advantages of PostgreSQL?

PostgreSQL has a number of advantages over other database programs. First, it's very stable. It's been around since the 1980s, and it's been used in production environments for years. This means that it's less likely to have bugs and is more likely to be compatible with other software. 

Second, it's very versatile. It supports a wide variety of data types, including text, numbers, images, and even geographic data. It also supports a wide variety of programming languages, making it easy to integrate into existing systems. 

Third, it's very scalable. It can handle large amounts of data easily, and it can be scaled up to meet the needs of a growing business. 

Finally, it's open source, which means that anyone can contribute to its development and improve its functionality.

What Are the Disadvantages of PostgreSQL?

While PostgreSQL has many advantages, there are some disadvantages to using it as well. 

  1. It's not as widely used as other database programs like MySQL or Oracle. This means that there are fewer resources available for learning how to use it.
  2. It's not as easy to use as other database programs. It can be difficult to set up and configure, and it may require more technical knowledge than some database programs.
  3. It's open source, which means that anyone can contribute to its development and improve its functionality. This can be both an advantage and a disadvantage, depending on your perspective.

Interview Questions to Ask When Hiring a PostgreSQL Developer

Here are a couple of questions to ask a SQL developer for finding out how he works with PostgreSQL.

  1. What experience do you have with PostgreSQL? 
  2. What types of data do you feel most comfortable working with? 
  3. What programming languages are you most comfortable using? 
  4. What do you think are the biggest advantages and disadvantages of PostgreSQL? 
  5. How do you feel about working on an open source project? 
  6. How do you create the first user in PostgreSQL? 
  7. What do you think are the most important skills for a PostgreSQL developer?
  8. What PostgreSQL developer tools do you use the most?