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Hire the best REST API Developers in Warsaw, PL

Check out REST API Developers in Warsaw, PL with the skills you need for your next job.
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  • $25 hourly

    • 5.0/5
    • (5 jobs)
    Need a professional mobile application for your business? Need a developer for SmartContract? Have an idea for an app and want to bring it to life? Have an existing app and want to maintain it? Then message me and I'll help you. Hi there! I am iOS | dApp | Solidity developer and can create app/Smart Contract/dApp for you. What you get with my service: ✅ Communication: You will get good communication and collaboration with me and mobile development team of StarGo agency. Fast answers and tips for your product. ✅ Quality application: From scratch to AppStore. ✅ Maintenance: You will get high-quality support and fast application updates ✅ Clean code: This code can by supported by anyone because it's easy to work with. ✅ Testability: App can be easily covered with Unit tests. ✅ Scalability: Project can grow as you need without any problems. Primary Skills and Technology: - Languages: Swift, Solidity, JavaScript - UI: UIKit, SwiftUI, Texture, WatchKit - Databases: CoreData, Realm - APIs: REST-based APIs, GraphQL APIs - Design: Figma - Tools: Xcode, Postman, Sourcetree, VSCode, Remix I have more than 5 years of experience in iOS development. During that time I worked on different apps and used different technologies. Also I'm dApp developer and Smart Contract developer for EVM. I would like to discuss your project needs in google meet with you to achieve best result.
    vsuc_fltilesrefresh_TrophyIcon REST
    web3.js
    Web3
    GPT API
    Solidity
    Mobile App Development
    Chat & Messaging Software
    Camera
    User Authentication
    Core Data
    iOS Development
    RESTful Architecture
    Firebase
    In-App Purchases
    Swift
    WatchKit
  • $50 hourly

    • 5.0/5
    • (6 jobs)
    Creation and support of mobile applications. Created over 10 apps with over 5,000,000 installations.
    vsuc_fltilesrefresh_TrophyIcon REST
    App Store
    SwiftUI
    Invoicing
    Google Play
    Analytics
    Google Ads
    Mobile App Development
    Swift
    iOS Development
    Android App Development
    RESTful Architecture
    Java
    Firebase
    Kotlin
    Map Integration
  • $50 hourly

    • 5.0/5
    • (6 jobs)
    I am having more than ten years of experience in Web and Software Development. I have developed many backend projects and frontend projects for middle to big companies. There are IoT and Commercial, Social, Mobile backend projects. Usually, I used PHP/Drupal/Laravel and Postgresql/Mysql for backend development. For the frontend, I used Vue.js, AngularJS. TECHNICAL SKILLS: ● Drupal: themes, modules, core ( Over 10 years ); ● XML/HTML/CSS ( Over 12 years ); ● PHP ( Over 11 years ); ● Symfony/CakePHP/Laravel ( Over 7 years ); ● Javascript, Vue, React, Angular ( Over 6 years ); ● MySQL, PostgreSQL, MongoDB, SQL ( Over 6 years ); ● Swagger, OpenAPI Spec ● Web-services (SOAP, REST); ● GIT ( Over 5 years ); ● Responsive design ( Over 5 years ) Thank you
    vsuc_fltilesrefresh_TrophyIcon REST
    Web Development
    Symfony
    RESTful API
    Security Engineering
    DevOps
    RESTful Architecture
    Docker
    Laravel
    Drupal
    SQL
    HTML
    CSS
    PostgreSQL
    PHP
    Python
  • $40 hourly

    • 5.0/5
    • (13 jobs)
    I’m a seasoned Fullstack PHP Developer with extensive experience in crafting complex Software-as-a-Service (SaaS) applications from scratch. Specializing in the Laravel framework, I have a deep understanding of OOP and adhere to the highest coding standards (SOLID/KISS/DRY) to ensure clean, maintainable, scalable and efficient code. Beyond typical web development skills, I have a profound knowledge AI (beyond a simple API integration), which allows me to design and seamlessly integrate AI capabilities to any web app. Key Expertise: - Fullstack Development: Proficient in both backend and frontend technologies with a focus on PHP (Laravel) and JavaScript. - SaaS Applications: Experienced in designing and building scalable SaaS platforms from the ground up, tailored to unique business needs. - AI Integration: Skilled in seamlessly integrating AI features to any web app. - Best Practices: Committed to code quality, security, and performance optimization. Why Choose Me? - Proven Track: 100% job success and more than 31500 hours worked on Upwork! - Collaborative Approach: Excellent communicator, I believe in building strong working relationships and am committed to understanding and meeting your project requirements. - Continuous Improvement: Passionate about learning and adopting new technologies and methodologies to stay at the forefront of the development landscape. Whether you are starting a new project from the ground up or looking to enhance an existing application, I am here to help you achieve your goals with precision and professionalism. Let's connect and bring your vision to reality with cutting-edge technology and top-quality implementation.
    vsuc_fltilesrefresh_TrophyIcon REST
    RESTful Architecture
    Object-Relational Mapping
    MVC Framework
    API Development
    PHP
    Vue.js
    Laravel
    AJAX
    JavaScript
    jQuery
  • $50 hourly

    • 5.0/5
    • (15 jobs)
    Android development and maintenance Complete applications, prototypes, proof of concept, maintenance, legacy support Integration with popular social media platforms Google resources e.g. Maps, Analytics, ads E-commerce, in-app purchases, point-of-sale tools Technology: - Programming languages: Java, Kotlin, SQL - Architecture: MVVM, MVP, clean code - Professional software engineering tools and methodologies
    vsuc_fltilesrefresh_TrophyIcon REST
    RESTful Architecture
    JavaFX
    JSON
    Git
    Kotlin
    Java
    Android App Development
    In-App Advertising
    Smartphone
    Android SDK
    API Integration
    SQLite Programming
    Chat & Messaging Software
    Android
  • $20 hourly

    • 5.0/5
    • (5 jobs)
    Overview: With over 6 years of hands-on experience in software development, I bring a wealth of expertise in designing, developing, and deploying high-performance applications. My primary focus is on building scalable, secure, and maintainable solutions that drive business success. I am proficient in a wide range of technologies, including: Languages: Java, Kotlin, Python Cloud & DevOps: AWS, Terraform Database: PostgreSQL Frameworks: Spring Boot, Spring MVC, Thymeleaf Testing: JUnit What I Offer: Full-Stack Development: From designing intuitive user interfaces to building powerful back-end systems, I deliver end-to-end solutions. Cloud Solutions: Leveraging AWS and Terraform, I can set up, manage, and optimize cloud infrastructures, ensuring your applications are both scalable and cost-effective. Microservices Architecture: Skilled in Spring Boot and Spring MVC, I create modular and efficient microservices that enhance performance and maintainability. Database Management: I specialize in PostgreSQL, ensuring your data is structured, secure, and optimized for high-speed access. Test-Driven Development: Utilizing JUnit, I write clean, reliable code that passes rigorous testing, reducing bugs and improving software quality. Why Work With Me? Problem Solver: I excel in tackling complex challenges and finding innovative solutions that align with your business objectives. Detail-Oriented: My code is not just functional but also clean, well-documented, and maintainable. Client-Focused: I prioritize communication and collaboration, ensuring that your vision is realized in every project. Let’s collaborate to turn your ideas into reality with cutting-edge software solutions. I'm excited to help you achieve your goals!
    vsuc_fltilesrefresh_TrophyIcon REST
    PostgreSQL
    Java
    API
    RESTful Architecture
    API Integration
    SQL
    Spring Boot
    Thymeleaf
    Hibernate
  • $16 hourly

    • 5.0/5
    • (13 jobs)
    I am a skilled Java developer with extensive experience in building high-performance, scalable, and reliable applications. With over 3 years of experience in the industry, I have honed my skills in Java development, including core Java, J2EE, Spring Framework, Hibernate, and Maven.
    vsuc_fltilesrefresh_TrophyIcon REST
    Automation
    Scripting
    Data Scraping
    AWS Application
    Oracle
    AWS Amplify
    Docker
    Kotlin
    RESTful Architecture
    Java
    Golang
    RESTful API
    MySQL
    Spring Framework
    Redis
  • $14 hourly

    • 5.0/5
    • (1 job)
    Hello! I'm Mike Pavlov, a passionate Tech Lead with over 8 years of experience in the software industry. I specialize in Python development and have a keen interest in integrating innovative technologies into real-world applications. What I Do Best: Software Development: I've led diverse teams to deliver top-tier software solutions, ensuring efficiency and quality in every project. Collaboration: Working closely with project managers, stakeholders, and developers, I prioritize technical requirements to align with business goals. Mentorship: I believe in fostering a culture of continuous learning. I've organized numerous training sessions and workshops, promoting knowledge-sharing within teams. Innovation: Staying updated with industry trends, I integrate cutting-edge solutions and methodologies, ensuring our projects are always at the forefront of technology. In my free time, I love exploring open-source projects and contributing to the tech community. Let's connect and build something great together!
    vsuc_fltilesrefresh_TrophyIcon REST
    Project Management
    API
    API Development
    RESTful Architecture
    Python Script
    PyCharm
    Web Application Development
    Web API
    Docker
    Flask
    Django
    JavaScript
    Technical Project Management
    Python
    Tech & IT
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    I'm a Full Stack .NET Web developer with over 14 years of experience. Highly proficient in developing client-server and Web/mobile-based database applications. Experience in Microsoft technologies including Win Forms, ASP.Net, ASP.Net MVC and .Net Core. Capable in working with large amounts of data using various MS SQL SERVER operations. My Expertise are: - C#, VB, ASP.Net, MVC, .Net Core, WebAPI, Blazor - Umbraco, Sitefinity CMS - ADO.Net, EF both code first and database first, LINQ to SQL, Dapper - 3rd Party Controls such as DevExpress, DevExtereme, Syncfusion & Telerik - React Naive, Flutter Android & iOS app development - HTML5, CSS3, Bootstrap, JavaScript, Typescript, jQuery, HighCharts - React.js, Node.js, Knockout.js, AngularJS, Angular (2 to 12). - React Relay Classic, React Route, React-router-relay, JavaScript + JSX, Redux-Saga, Redux/Flux architecture, etc. - Server and Mobile Database - Microsoft SQL Server with DDL, MySQL, and SQLite, - Azure DevOps, AWS Lambda, AWS amplify, Serverless - Twilio and Firebase - Cloud-Based Services: Amazon Cloud services / Windows Azure / Parse / PowerBI - Source Controls such as SVN/ TFS/ VSS/ GIT/ Source Gear Vault - Project Management Tools: Jira, Trello, Basecamp, Asana I am seeking great opportunities to build both short-term and long-term relationships with clients focusing on development and web design.
    vsuc_fltilesrefresh_TrophyIcon REST
    Flutter
    AWS Lambda
    Software Design Pattern
    Entity Framework
    SQL
    RESTful Architecture
    .NET Core
    .NET Framework
    Blazor
    RESTful API
    ASP.NET MVC
    C#
    React
    DevOps
    AngularJS
  • $39 hourly

    • 4.9/5
    • (12 jobs)
    I'm a front-end developer with 7 years of total experience. I worked with AngularJS (2014-2017), PolymerJS and VueJS (2017-2019), ReactJS and Typescript (2019-2023). I have experience as a teacher/mentor at web-developing classes in IT-Academy (2018) and Rolling Scopes (2023). I can work as individual developer as well as team lead managing development processes. I have experience developing hybrid apps (ionic, cordova, capacitor), chrome extensions, PWA and also can make a brief backend support on PHP or Node. I worked with AI using 3rd party AI APIs. I enjoy remote work (worked remotely before covid), team working, scrum methodology and other profession’s standards. I'm good at communications. I'm looking for a project to join and work comfortably nevertheless with passion using ReactJS, Typescript and other modern front-end tools. I'm ready to learn new things, grow up as developer and do my best for the project i work on.
    vsuc_fltilesrefresh_TrophyIcon REST
    JavaScript
    TypeScript
    CSS 3
    AngularJS
    jQuery
    Bootstrap
    RESTful Architecture
    HTML5
    Node.js
    React
  • $29 hourly

    • 5.0/5
    • (5 jobs)
    Main goal is bring to user all beautiful things android has. So first of all I prefer to work with project based on google guidelines and material design. I have over 7 years experience in developing android apps. Working with BlockChain projects, Android Wear, REST based applications, Canvas, Custom views, Animations, Video, Camera API, createing filters, support native libraries, JNI, GRPC, encrypting, any new google feature or any custom things etc. Also I can create a small prototype of your idea in a short time.
    vsuc_fltilesrefresh_TrophyIcon REST
    Ethereum
    Photo Manipulation
    Bitcoin
    OpenGL ES
    Blockchain
    DApps
    Mobile App Development
    RESTful Architecture
    Android
    Java
  • $25 hourly

    • 5.0/5
    • (16 jobs)
    Unity3D / Unreal Engine 4 Top Notch Developer. Platforms: iOS/Android, AR/VR, PC/Mac. Languages: C#, C++ and sometimes Swift:) 7 years of proven experience. More then 30 complete projects and many happy clients. Have a passion for clean and reusable code architecture. Love gaming and game development.
    vsuc_fltilesrefresh_TrophyIcon REST
    RESTful Architecture
    Game Design
    Game Development
    Unreal Engine
    Unity
    C++
    C#
  • $50 hourly

    • 4.3/5
    • (15 jobs)
    I'm a Ruby on Rails / web developer with over 4 years experience in building high quality applications/websites. Also I'm experienced UI/UX developer with PRO Illustrator's skills who can combine functionality and beauty. My main skills: - Ruby, Ruby on Rails - Middleman - React / React Native / Redux - Docusaurus - RSpec, Capybara, Cucumber - TypeScript - JavaScript, jQuery - MySQL, SQLite, PostgreSQL - Webpack - REST - HTML5, HAML, Tailwind, Bootstrap, CSS3/SASS - UI/UX, Web Design - Figma It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects.
    vsuc_fltilesrefresh_TrophyIcon REST
    API
    Illustration
    UI/UX Prototyping
    Web Design
    React Native
    RESTful Architecture
    Ruby on Rails
    Ruby
    React
    Responsive Design
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    Hi, I am a Java Developer, ready to work with your projects, I have a little bit of experience as well as a lot of personal projects. If you have any questions or suggestions, feel free to text me.
    vsuc_fltilesrefresh_TrophyIcon REST
    SQL Programming
    SQL
    API Development
    Spring Framework
    API
    RESTful Architecture
    REST API
    RESTful API
    Java
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