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Rating is 4.7 out of 5.
4.7/5
based on 7,709 client reviews
  2. Development & IT Talent
  3. Back-End Developers
  4. (Current) Restful API Freelancers
  • $75 hourly

    • 4.7/5
    • (107 jobs)
    Workday HCM and Integration certified consultant , worked as a techno-functional consultant for last 13 years. Having solid experience of workday implementation and post go-live support for large workday project. Experienced on workday studio, core connector, EIB, REST, SOAP, RaaS and Document Transformation. I have end-to-end knowledge on custom report, Calculated fields, BIRT, CCTP, SOAP, REST, XML, XSLT and custom object. Solid knowledge on Workday HCM, Workday benefit, Workday time tracking, workday rrecruiting, workday finance, workday time Absence, Workday Project and workday Financial.Proven expertice on workday web services, workday API etc. Current job: Workday Individual Consultant(2017 to current date) Workday skills: From Workday version 24 to workday 2023R2, Technical and functional knowledge on the below areas: - Workday architecture and workday service methodology. - Core Concepts of workday functional area and modules - Workday Organization and configuration of them as per requirement - Staffing Model, implementation of staffing model for the specific organization. - Jobs and Positions for organization specific to different criteria - Transactions in Workday - Compensation Configuration and compensation event - Security configuration and security implementation - Business Process configuration and workflow management -Workday Absence Management, time tracking, and talent management - High volume data migration and data validation - Workday process monitoring and alert management - Integration Development, testing, and monitoring using integration tool. - Report Writer, report sharing, data analysis, custom matrix generation. - EIB, Data extraction of third-party application, Mass data load, and data validation - Report Designer - BIRT Reporting - nBox - Workday Studio - Cloud Connector - Package Connector - Web Services API's, XML, XSLT. - iLoad
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Recruiting
    Compensation & Benefits
    Workday
    Report Writing
    API Integration
    RESTful API
    Integration Testing
    Laravel
    Unit Testing
    SOAP
    XSLT
  • $35 hourly

    • 4.8/5
    • (44 jobs)
    As an experienced Python Django developer, I have built numerous web applications that are scalable, secure, and user-friendly. I have a strong understanding of Django's Model-View-Controller (MVC) architecture and have worked on all aspects of the development process, including requirements gathering, database design, front-end development, and deployment. My expertise includes developing REST APIs, integrating third-party libraries and APIs, and working with various front-end frameworks such as React, Angular, and Vue.js. I am also well-versed in web technologies such as HTML, CSS, and JavaScript, which allows me to create responsive and engaging user interfaces. I have worked with clients across various industries, including e-commerce, healthcare, and education, and have delivered solutions that meet their unique business needs. I am committed to delivering high-quality work and ensuring that my clients are satisfied with the end product. If you're looking for a skilled Python Django developer who can help you bring your ideas to life, look no further. Let's discuss your project and see how I can help you achieve your goals. Python, Django, Angular, React, Vue, Typescript, HTML, CSS, SASS, LESS, Bootstrap, Javascript, Jquery, Nginx, UWSGI, ASGI, Restful API, Django Rest Framework, AWS, EC2, Digitalocean, Docker, GIT, Scrapy
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Ubuntu
    Angular 10
    RESTful API
    NGINX
    AngularJS
    Django
    HTML
    JavaScript
    Python
    TypeScript
    React
    CSS
    RESTful Architecture
    Responsive Design
  • $35 hourly

    • 5.0/5
    • (10 jobs)
    I am a backend oriented IT developer using the Golang language and all its tools to tied things together. I assure you that you'll be satisfied with the good results, and I'll always meet the deadlines. Looking forward to working together!
    vsuc_fltilesrefresh_TrophyIcon Restful API
    PostgreSQL Programming
    MySQL Programming
    NoSQL Database
    Data Scraping
    Docker
    Neo4j
    RESTful Architecture
    RESTful API
    Golang
  • $85 hourly

    • 5.0/5
    • (30 jobs)
    ** Under Construction ** Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    API
    RESTful API
    Front-End Development
    OpenGL
    Rust
    Django
    Microsoft Windows
    JavaScript
    C++
    Python
    Qt Framework
    C
    Electron
  • $75 hourly

    • 5.0/5
    • (21 jobs)
    I am a multi-disciplined programmer with over 10 years industry experience. I am an expert at multi-paradigm programming (functional, object-oriented, and logic paradigms), and use the paradigm that is most appropriate for the problem. I study programming languages as a hobby. I am pretty much language agnostic — I don't care too much what language I use, or even if I know it prior to the project — but I do prefer languages that are conducive to a multi-paradigm approach, such as Clojure, Scala, Python, etc. I enjoy learning new things, and am constantly honing my skills. I seek software development jobs that will both exercise the skills I already have, as well as help me develop new skills.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    RESTful API
    ClojureScript
    .NET Framework
    HTML
    Clojure
    SQL
    Java
    CSS
    Python
    JavaScript
  • $65 hourly

    • 4.9/5
    • (145 jobs)
    I provide major tech companies, including FORTUNE 500, such as Microsoft, Upwork Internal Team, GE, and Fujitsu, with high-quality technical content that fits their business goals. My background is in electrical engineering and cybersecurity. I've written many API and SDK documentation. I hold Certified Information Security Manager (CISM), ITIL, Project Management Professional (PMP) certification, and two master's degrees in electrical engineering and engineering management. I am proficient in JSON, YAML, REST APIs, HTML, and C. Examples of tools used: Confluence, Markdown, Zendesk Guide, Swagger IO, Git, Readme, Stoplight, etc
    vsuc_fltilesrefresh_TrophyIcon Restful API
    API Documentation
    Technical Writing
    OpenAPI
    Academic Writing
    SEO Writing
    YAML
    RESTful API
    Blockchain
    ICO White Paper
    GraphQL
    Writing
    API
    Research Papers
    Content Writing
  • $125 hourly

    • 4.9/5
    • (29 jobs)
    FHIR certified. Mirth Certified. Jitterbit. 16 years building complex HL7, FHIR API, csv, flat file healthcare interfaces. Standard services include: - affordable price to setup your Athena, Epic and Cerner dev code accounts and build necessary FHIR api calls as an automated Postman collection including the Oauth requirements( this gives your team a jump on healthcare deep integration) or setup Mirth integration engine with pre-built channels. - setup an efficient process for you to convert or map csv, HL7, or database fields to FHIR resources and then deliver to Azure, AWS, GCP, sftp, REST or any application - setup process so you can convert incoming FHIR resources to any data format for your application to ingest. - HL7 v2 integration of all types including: ADT, VXU (vaccine), ORU(imaging or lab), ORM(imaging and lab orders), SIU(scheduling), DFT(charges), MDM(docs), RDE(medications) and many other types of HL7.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    InterSystems Caché
    Athena Software Penelope
    Epic Systems Medical Software
    Oracle
    FHIR
    Mirth Connect
    Healthcare Interoperability
    Health Level 7
    API Integration
    RESTful API
    SQL
    Web Service
  • $30 hourly

    • 4.4/5
    • (133 jobs)
    Learning is also a kind of earning. So, I learned Web analytics and completed 200+ projects on Fiverr and Upwork. Then I fell in love with Data Science and learned its all topics by heart along with a master degree in Data Science :) The future belongs to those who learn more and more skills so I believe that when we stop learning, we start dying. However, my existing skills along with a short description are given below. Web Analytics: Certified, experienced and best at web analytics using Matomo and Google Analytics. Web Development: PHP frameworks are my home turf and I have completed so many projects in Opencart, Codeigniter, Laravel, and WordPress. Please have a look at the portfolio to see the projects. Web scraping & crawling: Thanks to the Search Engine development project for which I crawled & scraped 1 million web documents :P so after that I always see myself doing scraping, crawling, and automation-related projects. For automation, I use selenium, beautiful soup, and Python. APIs development: As Python is in my blood so before data science, I used to work on APIs development and web scraping using Python. Big data: I have rich experience in the Hadoop eco-system using Apache Hadoop, Apache Hbase, Apache Nutch, Apache Hive, Apache Solr, etc. The detail is given below. ** Apache Hbase: How to store and retrieve data from Hbase and how to use it with Hadoop and Apache Nutch. ** Apache Nutch: How do search engines work? How to develop your own search engine using Apache Nutch as a crawler, Customization of Nutch at all phases, Tuning of Nutch for effective crawl, and a lot more. ** Apache Solr: How to use Solr for indexing purposes, How to use it in distributed mode, how to do indexing, how to analyze indexed data using different Solr clients. Matomo analytics: There was a time when I was the only Matomo related developer on Fiverr and Upwork. I have very rich experience in following tasks. ** Matomo Installation, configuration, and integration with the website. ** Matomo customization like custom dashboard development i.e., change look & feel different and you can claim that it is your custom product. ** Custom event tracking with/without Matomo tag manager ** Custom variables/dimensions, Goals, and conversions tracking. ** Conversion rate, custom reporting, and GeoIP-based correct location tracking. ** Expert to fetch tracking data through Matomo API to develop a custom dashboard or to display insights on another website.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    RESTful API
    Machine Learning
    Data Analysis
    Google Analytics
    Database Design
    Web Analytics
    Big Data
    MySQL
    DApps
    Piwik PRO
    ETL Pipeline
    Python
    Microsoft Excel
    Data Scraping
    Data Mining
  • $40 hourly

    • 5.0/5
    • (15 jobs)
    Capable professional with a proven history of enhancing business operations. Proficient in problem-solving skills. Well-coordinated in addressing problems, investigating root causes, and implementing successful resolutions. 20x Salesforce Certifications ✅ Salesforce Certified Platform Developer II ✅ Salesforce Certified System Architect ✅ Salesforce Certified Application Architect ✅ Salesforce Certified Integration Architect ✅ Salesforce Certified Development Lifecycle and Deployment Architect ✅ Salesforce Certified Sharing and Visibility Designer ✅ Salesforce Certified Identity and Access Management Architect ✅ Salesforce Certified Data Architecture and Management Designer ✅ Salesforce Certified Platform Developer I ✅ Salesforce Certified Javascript Developer I ✅ Salesforce Certified Data Cloud Consultant ✅ Salesforce Certified Advanced Administrator ✅ Salesforce Certified Services Cloud Consultant ✅ Salesforce Certified Sales Cloud Consultant ✅ Salesforce Certified Experience Cloud Consultant ✅ Salesforce Certified User Experience Design ✅ Salesforce Certified Platform App Builder ✅ Salesforce Certified Administrator ✅ Salesforce Certified AI Associate ✅ Salesforce Certified Associate 10 Salesforce SuperBadges: * Advanced Apex Specialist * Apex Specialist * Data Integration Specialist * Lightning Web Components Specialist * Service Cloud Specialist * Process Automation Specialist * Security Specialist * Business Administration Specialist * Lightning Experience Reports & Dashboards Specialist * Aura Components Specialist
    vsuc_fltilesrefresh_TrophyIcon Restful API
    API
    Salesforce Sales Cloud
    Salesforce CRM
    Salesforce Lightning
    Apex
    Salesforce App Development
    Salesforce Service Cloud
    Salesforce
  • $55 hourly

    • 5.0/5
    • (12 jobs)
    Dreamy, proactive, hardworking, self-taught and with the dream of becoming a polyglot programmer. I have a fascination for learning. I have over 7 years of experience in various areas in Web Development. I worked on projects for customers located in Colombia, Canada, Puerto Rico, Australia and the United States. I worked in this highlight projects: - tecdonor.com platform for volunteers. - oyelomio.com platform for musical talent in Puerto Rico. - vancalab.com Web page of courses for national test in Colombia. APIs I've used: - Mailchimp - Stripe - ePayco - Github - Gmail - Google Maps My skills in Backend: - Laravel - PHP - Rails (Ruby) - Go My skills in Frontend: - Html5 - Css3 - Javascript - Jquery - React - Vue My skills in Databases: - Postgresql - Mysql. My skills in Web servers: - Apache - Nginx My skills in OS Servers: - Ubuntu - Centos I will be happy to work with you
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Symfony
    RESTful API
    Web Application
    API Development
    API
    JavaScript
    Vue.js
    HTML5
    Ruby on Rails
    Ruby
    MySQL
    Laravel
    PHP
  • $60 hourly

    • 5.0/5
    • (13 jobs)
    ✅ 10+ Years in Development ✅ 100% Job Success Over 10 years ✅ 100% Customer Satisfaction Marketplace, Job Portals, Wikipedia, etc Hi I'm Umar, an expert-vetted Full-stack developer having expertise in React, React Native, Next.js, Node.js, Express.js, Nest.js, Angular, Python and SQL/NoSQL. I have a solid background in technologies such as JavaScript (ES6, ES7, Ajax, JSON, XML) and its frameworks such as Node.js, Express.js and for the front-end I have used React.js, Angular.js and Vue.js as well as Typescript both for frontend and backend development. I have great skills in following - Full Stack Developement ( HTML, CSS, JS, Bootstrap, MySQL, NodeJs, React, Redux) - Mobile UI Design and Prototyping ( Sketch ) - XML and JSON Parsing - API Integration ( Alamofire ) - CoreData and Realm - Source Control Systems like Github , Bitbucket and Tower - Third Party SDK's intergration ( Cocoapods ) - Facebook, Twitter and Gmail API integration - Twilio API integration ( SMS and Programmable Video Chat ) - Familiarity with Management Tools like Trello, Github and Jira - Adobe Photoshop and Illustrator - Graph API ( Facebook Public data fetching like images, feeds and bio) - Google Maps Integration - Google Placepicker Integration
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Full-Stack Development
    Web Development
    Software Development
    React Native
    Angular 10
    Next.js
    PostgreSQL
    RESTful API
    AWS Lambda
    MySQL
    MongoDB
    React
    Node.js
    TypeScript
    JavaScript
  • $35 hourly

    • 5.0/5
    • (6 jobs)
    If we work, you can count on me. I: - ensure clear communication; - pay attention to details; - strive to deliver in the shortest timeframe. Top technologies I like and use often: Frontend - Redux, RTK, SWR, Apollo GraphQL Client - Next.js (App & Pages), CRA, React Router - CSS Modules, Tailwind CSS & UI, Headless UI - Storybook, Testing Library, Jest, MSW - PNPM, Yarn & Workspaces, Lerna, Nrwl Nx Backend: Node.js - NestJS (RESTful & GraphQL APIs) - TypeORM, Prisma - Apollo GraphQL Server Backend: Go (Golang) - PGX, GORM, GoRedis - Gorilla, Gin - Protocol Buffers (Protobuf), gRPC - Temporal Platform & Go SDK DevOps: Automation tools - Docker & Compose - GitHub Actions DevOps: Infrastructure - DBs: Redis, Postgres, Mongo, Neo4j - PaaS: DO, AWS, Heroku, GCP, Vercel, Appflow
    vsuc_fltilesrefresh_TrophyIcon Restful API
    DevOps
    Golang
    TypeScript
    JavaScript
  • $15 hourly

    • 5.0/5
    • (3 jobs)
    I'm fully professional full-stack web developer with over 8 years of experience from concept to deployment, ensuring clean, maintainable code and best practices. My strong expertise lies in MySQL, PHP frameworks like Laravel and CodeIgniter, paired with modern front-end technologies such as ReactJS, HTML5, CSS3, and JavaScript. 🌟 Skills & Expertise ➔ Backend Expertise: Robust development using PHP, Laravel, and CodeIgniter to build secure and efficient server-side applications. Proficient in MVC architecture, Object-Oriented Programming (OOP) principles, and advanced Design Patterns such as Repository, Service, and Factory for clean and maintainable code. Skilled in RESTful API development, authentication and authorization (using JWT and OAuth2), and database management with MySQL and MongoDB. Experienced in data caching strategies with Redis and Memcached to optimize performance and scalability. Adept at implementing queue workers for background processing and asynchronous task handling to enhance application responsiveness. ➔ Frontend Expertise: Developing interactive and highly responsive user interfaces using ReactJS for component-based architecture and JavaScript for dynamic functionality. Skilled in implementing modern JavaScript ES6+ features and optimizing performance for seamless user experiences. Experienced in state management using tools like Redux and building modular, maintainable front-end codebases. ➔ UI Expertise: Creating interactive and responsive user interfaces with HTML5, CSS3, & Bootstrap for building mobile-friendly, adaptive designs. ➔ Other Expertise: Skilled in real-time and push notifications, test driven developemnt (TDD), Microservices Architecture and Third-party integrations (e.g., payment gateways, OAuth, accounting software). Also development expertise using Git & Docker. ➔ Domain Expertise: Extensive experience across various domains, including social apps, ERP systems, accounting platforms, CMS development, and SaaS solutions. Let’s chat and explore how I can contribute to your project. Whether you need guidance shaping your concept or full development, I'm here to offer my expertise and dedication. Reach out anytime—
    vsuc_fltilesrefresh_TrophyIcon Restful API
    React
    Laravel
    PHP
    CI/CD
    CodeIgniter
    RESTful API
    Core PHP
    API Development
    MySQL
    CSS 3
    AJAX
    Bootstrap
    jQuery
    JavaScript
    HTML5
  • $23 hourly

    • 5.0/5
    • (16 jobs)
    🎖️ | 100% Job Success 🏹 | 100% Customer Satisfaction 📕 | MCA In Computer Science I’m Dhwani N. a dedicated Full Stack Developer with 10+ successful projects under my belt, I specialize in turning complex visions into seamless web solutions. My Expertise:- =========== Front End: 📙 ReactJS, 📙 Angular, 📙 Vue.js, 📙 Node.js, 📙 HTML/CSS/Bootstrap, 📙 Material Design, 📙 TypeScript, 📙 Tailwind, 📙 CSS Back End: 📗 Node.js, 📗 PHP 📗 Database: 📗 MySQL, PostgreSQL, MongoDB, Elasticsearch, Algolia 📗AWS Services: 📗AWS Cognito, Lambda, S3, DynamoDB, API Gateway, CloudFront, RDS Additional Expertise: 📘 Redux, GraphQL, WebRTC, WebSockets 📘Progressive Web Apps (PWA), Storybook, ESLint, Webpack 📘 Consulting for Web-based Applications, 📘 Database Engineering, 📘 API Development, 📘 Design, and 📘 User Experience 🚀 .NET Languages: C#, VB.NET/Visual Basic 🚀 Frameworks: ASP.NET MVC, Azure 🌐 Full Stack Development – Building robust web applications from the ground up, offering both front-end and back-end development services. 🐍 Python Mastery – Writing clean, efficient code in Python, a language known for its versatility in web development and scripting. 🖥️ Django Development – Leveraging Django to build high-quality web applications with a focus on rapid development and clean, pragmatic design. 🚀 Innovation & Creativity – Bringing innovative ideas to life with a creative approach to problem-solving and application development. 🧩 Problem Solving – Tackling complex coding challenges with advanced problem-solving skills to ensure projects exceed expectations. ❤️ Coding Passion – Coding not just as a profession, but as a passion, driving every project towards excellence. 👥 Collaboration Excellence – Prioritizing effective communication and collaboration to ensure project success and client satisfaction. When you work with me I can assure you'll get a prompt response, clear communication and within 24 hours turn around time. If that sounds like what you need, please feel free to contact me. Sincerely.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Redux Saga
    RESTful API
    Redux
    Python
    Node.js
    Flask
    React
    MongoDB
    MySQL
    Django
    Amazon Web Services
    webpack
  • $60 hourly

    • 3.7/5
    • (29 jobs)
    I develop web apps and sites using Laravel, Vue, Tailwind. My forte is to take over existing PHP project with legacy, performance issues and chaotic development cycles and put it all in order: resolve issues, implement new features, introduce proper code practices. If you have just an idea, I will help create a project roadmap with clear timeline. I like working closely with product owner, only this way I can deliver what you really need, not in the end of project but starting from day 1. I believe good code is one that is easy to change and maintain. If you want to build: - a Marketplace; - a SaaS; - a membership restricted website for something; - a backend for mobile or web app; - API for something; - anything that is not CMS but a web app; let's talk! I like and prefer asynchronous communication on project. However sometimes it's necessary and I will happy to meet you in Zoom. Seeing your idea be successful is more important to me than getting your business, so if you're not certain whether I can help you, contact me, and I'll help you figure out who can. Recent works: - Backend for app - Top-25 in Food & Drinks on App Store Denmark - Crypto prices monitoring system - Ad server - Multi-level marketing and affiliate program engine - Ride-sharing app for drivers and riders 🇺🇦
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Cryptocurrency
    Database Design
    API Development
    RESTful API
    Database Architecture
    Web Development
    HTML
    JavaScript
    PHP
    MySQL
    Vue.js
    HTML5
    CSS
    SaaS
    Laravel
  • $30 hourly

    • 5.0/5
    • (9 jobs)
    Passionate programmer, ever hungry to learn and earn. I have a CAN DO attitude and i am a dedicated learner. EXPERIENCE : 9 Years Backend Skills : * Java * Grails * Node * Groovy * Spring * Hibernate * AWS Frontend Skills : * Javascript * React * Redux * AngularJs * HighCharts * Html * Sass, Less Databases : * Mysql * Mongo * Elastic Search * Snowflake
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Agile Software Development
    Elasticsearch
    RESTful API
    Software Architecture & Design
    Web Development
    React
    AngularJS
    Grails
    JavaScript
    Java
    HTML5
    MongoDB
    Spring Framework
    AJAX
  • $15 hourly

    • 5.0/5
    • (9 jobs)
    Hi, If you are looking for a 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐜𝐫𝐞𝐚𝐭𝐢𝐯𝐞, 𝐚𝐧𝐝 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 App Developer, you have come to the right place - I will eagerly become your longtime partner. I am an expert 🆃🅾🅿- 🆁🅰🆃🅴🅳🏅 App Developer (Android, iOS) with 7+ years of experience, 𝐈 𝐡𝐚𝐯𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐝, 𝐭𝐞𝐬𝐭𝐞𝐝, 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲𝐞𝐝 𝐬𝐞𝐯𝐞𝐫𝐚𝐥 𝐚𝐩𝐩𝐬 𝐨𝐧 𝐛𝐨𝐭𝐡 𝐭𝐡𝐞 𝐚𝐩𝐩 𝐬𝐭𝐨𝐫𝐞 𝐚𝐧𝐝 𝐩𝐥𝐚𝐲 𝐬𝐭𝐨𝐫𝐞.I prefer long-term work and am In love with coding and am proud of my creations! I am working on high-quality iOS/Android applications for different industries, including medicine, marketing, advertisement, etc as a developer. I have overall 6 years of experience. It's important to me to create supportable and upgradable applications. I prefer to build long-term relations with my customers. When they come back to add support for new mobile devices or new features - I am always glad to see that application continue its life. My Skill Set: ------------------- - Flutter, Dart - Swift, Xcode, iOS SDK - Java, Kotlin, Android Studio - Super Level UI Customization, Suggestion of Best User-Friendly and elegant UI/Graphic design - Google Map Service, Real-time tracking, Geo-location, GPS, Geo-fencing - Web services, REST/SOAP, XML/JSON Domains on which i developed apps ------------------------------------------------- On-Demand Marketplace Utility Social networking/Chat/messaging Mini-games E-commerce Bluetooth/beacons Taxi/booking Fitness/health Coding Strategy: ------------------------- *Well-optimized, clean, robust, and well-commented code with qualified naming conventions. * Multi-Language Support * Localization And Internationalization support * API /Web Service Integration Thanks!
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    RESTful API
    Apple Xcode
    Android App Development
    iOS Development
    Firebase
    Kotlin
    Java
    PHP
    Firebase Realtime Database
    Swift
  • $160 hourly

    • 4.9/5
    • (122 jobs)
    𝗢𝘃𝗲𝗿 𝟮𝟮+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗔𝗣𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻, including 𝗥𝗲𝗮𝗹 𝗘𝘀𝘁𝗮𝘁𝗲 𝗠𝗟𝗦 𝗔𝗣𝗜, Zapier API, 𝗣𝗮𝘆𝗣𝗮𝗹 𝗔𝗣𝗜, and many others. I've worked with 𝗥𝗘𝗦𝗧𝗳𝘂𝗹 𝗔𝗣𝗜s using 𝗫𝗠𝗟 or 𝗝𝗦𝗢𝗡, as well as 𝗦𝗢𝗔𝗣 𝗔𝗣𝗜 integrations. 𝗟𝗲𝘁'𝘀 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗿𝗶𝗴𝗵𝘁 𝗻𝗼𝘄! Laravel Contributor, Arctic Code Vault Contributor, Creator of Dragon Framework, worked for multi-billion dollar companies and small tech startups alike. Top Rated Freelancer with over $200k+ Earned, 120+ jobs, and 2100+ Hours completed on Upwork. I have over 22+ years of experience, work 5+ hours every day on a project including weekends, and pride myself on writing clean, easy to maintain code, to save you time and money. "I had a difficult project that no one could figure out, and he did. Not only that he clearly communicated every step of the way. I had a phone conversation with him and another developer, the other developer said "this guy really knows what he's doing." I highly recommend and he's my go to for any development work." - Paul and Nancy, Plano, TX "Couldn't have been happier with Rick's work, communication, attention to details, responsiveness, and every other aspect you'd expect from a professional developer. If I need additional work or have a new project, Rick is the only one I'll reach out to!" - Rob, Castle Rock, CO "After struggling for almost 2 months to get my web site right through another service, Patrick took care of everything in less than a week. He also made valuable suggestions to improve what we had already done too." - Matt, Palatine, IL Hiring a specialist in the trade is incredibly important. Think about it this way. When you have open heart surgery, do you trust a General Practitioner or a Gastric Bypass Surgeon to do open heart surgery? What about a surgeon who spent 15 years doing gastric bypass surgery, and only 1 year doing open heart surgery? Probably not. You want a highly skilled heart surgeon who has at least 15 years of experience and has helped hundreds of patients, if not thousands. Sure, it costs more, but you know the job will get done right. You can't waste $10,000 hoping the "jack of all trades surgeon" will get your ticker orking again. You go right to the experts. Now think about what you're doing now with hiring a someone to build out your website for you. Yes, you need something that looks great, you need something that functions well, and you need to be able to change things as needed. You'll need a marketer, a logo designer, and the list goes on. However, ALL of those skills is not just a science, but an art. Yes, you can learn how to write basic software in a day, but it takes years to learn to do it right. If you're doing 20 different skills, then you're getting mediocre results on all of them. Someone who does one thing and does it well will know that skill like the back of their hand. Enter Rick Mac Gillis. Rick has been building websites since 2003. (That's well over two decades! Over half his life.) He's followed the trends in the industry to keep his skills sharp. He's gone to great lengths to save clients money by building an entire framework for new projects to start with. He's also one of the only engineers on UpWork who follows the Clean Code Principles put out by Robert C. Martin. If you need someone to make your site "just work" then he's your man. If you want someone to make your site look good, he can introduce you to someone. Simple as that. When it needs to work, call Rick. (Creator of the Dragon Framework) Please note that all services are being rendered through Red Scale Corporation, using the Upwork platform. Dragon Framework, WordPress, App Integration, PHP Developer, API Call, WordPress Theme Customization, Website Customization, E-commerce Web Developer, WordPress Plugin Developer, Laravel developer, Senior PHP Developer, plugin app, Custom plugin development, Backend Programmer, Laravel API Maintenance, Microservices Developer, LARAVEL Programmer, PHP Programmer, Laravel Customisation, backend application, Laravel API integration, Website Setup, Backend Engineer, AI Integration Expert, Back-end Automation, Zapier Integration, custom automation, Zapier workflows, Zapier Setup Specialist, Zapier Professional, Workflow Automation Specialist, ZAPIER Architect, automator, API expert, Integration Specialist, Integrator, Wordpress custom plugin, Wordpress Site Builder, Wordpress Framework Expert, WordPress Website Management, wordpress site, Wordpress & IDX Support, IDX Pages, IDX Plugin, IDX Plugin Customization, IDX Integration, CURL PHP, Wordpress Database, Wordpress customization, PHP web app, Laravel website, google api, RESO API Expert, WordPress IDX Expert, Reso Web API, MLS Integration, MLS mapping, RESO/MLS integration
    vsuc_fltilesrefresh_TrophyIcon Restful API
    AI Chatbot
    MLS Consulting
    WooCommerce
    WordPress
    Real Estate IDX
    RESTful Architecture
    API Development
    GPT API
    Automation
    REST API
    API Integration
    JSON API
    Zapier
    API
    PHP
  • $97 hourly

    • 5.0/5
    • (15 jobs)
    I am an experienced professional with 5+ years of team management, operations management, and process development experience. Recognized for demonstrating a natural aptitude for administering all day-to-day operations to allow for maximum company success, as well as for evaluating and enhancing company processes and effectively operating across a wide variety of other areas such as sales, programming, and accounting, I have a history of contributing to company growth throughout my career. Professional focal points include operations strategic planning, P&L ownership, document management, programming, sales development, accounting management, financial analysis, audit management, software development, and project management. Delivering superior administration on the latter areas of expertise requires utilization of effective communication skills, negotiation skills, as well as business acumen, operations analysis, issue resolution, recruitment management, integration management, and product management to support efficiency and maximum returns. Recently, I was the Chief of Staff with Atlas Lane. Under my leadership, I monitored and directed all day-to-day operations of the business and a team of 20 employees. I also developed and documented company processes and conducted and completed all company and client accounting. In addition, I liaised with senior leadership and various other personnel and teams to ensure the company’s operational support structure was driving the business forward with minimal expenditures.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    RESTful API
    Stripe
    Heroku
    Django
    Minimum Viable Product
    PostgreSQL
    Python
    JavaScript
    HTML5
    Docker
    jQuery
    Bootstrap
    CSS 3
  • $50 hourly

    • 5.0/5
    • (5 jobs)
    🌟 Projects delivered with up to a 70% reduction in operational costs. ⏱️ Refactoring that improved performance by 50%. 🥇 Top 3% of Upwork Talent. 🏆 10+ years of Backend Developer experience. My clients received error-free scalable and highly effective software solutions, boosting their business efficiency and profitability. This not only gives them a competitive edge but also paves their way towards becoming market leaders. 𝐍𝐞𝐞𝐝 𝐞𝐟𝐟𝐞𝐜𝐭𝐢𝐯𝐞, 𝐇𝐢𝐠𝐡-𝐈𝐦𝐩𝐚𝐜𝐭 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬? 𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐨𝐟𝐟𝐞𝐫: ✔️ API development for seamless connection and usage across platforms. ✔️ API integration with any third-party solutions. ✔️ Tailor-made systems from the ground up for automating business processes. ✔️ Custom infrastructure based on cutting-edge technologies to transform your ideas into reality and meet your business requirements. ✔️ Highly scalable database structures. ✔️ Real-time log analytics with commercial/custom dashboards. ✔️ CI/CD to automate your workflow from commit, testing, deployment, notification, and more. ✔️ Comprehensive testing across all project domains, encompassing all use cases, edge cases, and complete end-to-end scenarios. 𝐈 𝐜𝐚𝐧𝐧𝐨𝐭 𝐡𝐞𝐥𝐩 𝐞𝐯𝐞𝐫𝐲𝐛𝐨𝐝𝐲, 𝐛𝐮𝐭 𝐰𝐞 𝐦𝐚𝐲 𝐛𝐞 𝐚 𝐠𝐫𝐞𝐚𝐭 𝐟𝐢𝐭 𝐢𝐟 𝐲𝐨𝐮 𝐚𝐫𝐞 𝐭𝐡𝐢𝐧𝐤𝐢𝐧𝐠: ● "I need a solution that I can trust 100% to solve our problems RIGHT.” ● "We have ambitious goals and need a solution architect who can build scalable solutions to match our growth.” ● "I'm not satisfied with out-of-box applications. We need an expert who can build custom applications to meet our requirements.” ● "We're willing to invest in premium solutions that adhere to the highest industry standards. That’s why we need the BEST developers who place a premium on quality.” 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐦𝐞, 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥: ✔️ Save your money by getting clean, efficient code that is easy to read, understand, and extend for any future needs your business might have. A well-known fact is that a well-developed and SOLID principals-based application is much cheaper and faster to expand and modify than developing a new one from scratch whenever business requirements change. ✔️ Get support and warranty on all delivered projects. ✔️ Have a reliable and committed partner that guarantees tasks are executed flawlessly, punctually, and in the most effective manner. ✔️ Focus on more important tasks without distractions, as I handle your technical problems and challenges. ✔️ Witness rapid business expansion through advanced technology solutions customized to your company's needs. 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 & 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞: 🔸 Backend Development: NodeJS, NestJS, Express, Fastify 🔸 Frameworks & Testing: Prisma, Jest, Passport, ESLint 🔸 Programming: JavaScript, TypeScript 🔸 Infrastructure as Code: Terraform, CloudFormation 🔸 API Development & Integration: RESTful, GraphQL, Google APIs, Stripe 🔸 SQL Management: PostgreSQL, MySQL, RDS 🔸 NoSQL Management: MongoDB, Redis, DynamoDB 🔸 Compute & Serverless: Lambda, EC2, API Gateway 🔸 Authentication & Authorization: Cognito, Auth0 🔸 Messaging & Notification Services: SES, SQS, SNS, EventBridge, AWS Chatbot 🔸 Storage & Content Delivery: S3, Amazon Location Service, Route 53, CloudFront 🔸 Networking & Security: VPC, IAM, KMS, Parameter Store 🔸 Monitoring & Data Analytics: CloudWatch, X-Ray, Athena, Amazon QuickSight 🟢 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐓𝐚𝐤𝐞 𝐭𝐡𝐞 𝐍𝐞𝐱𝐭 𝐒𝐭𝐞𝐩? Let's connect! I'm passionate about employing my expertise to drive your project to new heights. Send me a message to explore how we can achieve groundbreaking success together.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    API Development
    Amazon Web Services
    TypeScript
    JavaScript
    API
    Node.js
    RESTful API
    NestJS
    ExpressJS
    Serverless Computing
    Back-End Development
    DevOps
    Solution Architecture
  • $15 hourly

    • 5.0/5
    • (2 jobs)
    Backend web application and Api development with procedural and high speed optimized(with LLVM) languages ,android and iOS Mobile Developer, Desktop application development
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Flutter
    API
    RESTful API
    Java
    Python
    SQL
    Flask
    HTTP
    Golang
    Dart
    PostgreSQL
    MongoDB
  • $38 hourly

    • 5.0/5
    • (13 jobs)
    Implementing your idea into a product that can be accessed in every browser. Intuitive, easy to use, and responsive, optimized for every device. A web application is what I can build for you to increase your business. What can I do for you? - Convert your idea into a Product that can increase your business - Create and deliver web applications from scratch - Fix bugs and optimize your existing project to make it run faster - Add new features on application you already have My top skills: - Angular - JavaScript / ES6 / TypeScript - RxJS, NgRx, NgBootstrap, Angular Material - RESTful API - NodeJS - ExpressJS - PostgreSQL - HTML5 / CSS3 / SCSS / SASS - GitHub, BitBucket, GitLab I'm looking for clients that seeks quality over quick-and-dirty solutions. Feel free to contact me! Best regards!
    vsuc_fltilesrefresh_TrophyIcon Restful API
    API
    RESTful API
    Web Development
    SQL
    CSS 3
    HTML5
    Node.js
    JavaScript
    TypeScript
    MongoDB
    Angular
  • $30 hourly

    • 4.9/5
    • (48 jobs)
    I am Muoi Nguyen (Teddy), Top Rated Plus, Senior Developer. Over 6 years of experience, I have been providing the following services: ✅ Web app development ✅ ETL Pipeline ✅ API development and integration ✅ POC and MVP development ✅ Cloud development ✅ Automation and crawling pipeline. Frontend: React JS, Next JS, HTML5/CSS3, SCSS, Bootstrap, Tailwind, JavaScript, jQuery, d3.js. Backend: Python, Django, Flask, Celery, NodeJS, MySQL, Postgres, REST API, Apollo GraphQL, Express, MongoDB, Redis, RabbitMQ. Devops: Kurbenetes, Docker, AWS, GCE, DO, Heztner My advantages: (1) Good planning for the project. (2) Excellent communication skills with clients to make sure requirements are well-achieved. (3) Delivering a well documented and clean code. (4) Use of latest technologies. Why trust me? Quick Turnaround time. 99% Positive reviews. 6+ years of experience in this field No project is too small or too big, and I guarantee you will be satisfied with my work, as are my current repeat clients. Thank you for watching my profile. Some of my clients: Care, ihousedesign, atworkph, vinnytroia, vaartani, godealco, sportskred, ruoomsoftware, monjaco, sternpinball, chartubate, intelligenteye.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    SCSS
    Tailwind CSS
    Kubernetes
    RESTful API
    TypeScript
    Docker
    Celery
    Django
    Node.js
    React
    Elasticsearch
    Flask
    JavaScript
    Python
  • $25 hourly

    • 5.0/5
    • (5 jobs)
    I have 6 years of working experience in the software industry, and I am confident most as a Backend Developer and Data Engineer. For now, I want to spend more time on the freelance path, to help others solve their problem happily. As a backend developer: - I build microservices using Java and Go - I design a Database schema for features I work on. - I write REST API and work with the frontend team for integration. As a data engineer: - I do ETL tasks. - I write batch jobs and real-time jobs for streaming over 50 GB of data per day. - I store processing data into HBase, MySQL. - I visualize data to make it meaningful to others. Besides, I also spend time playing with frontend stuff such as NextJS, VueJS, CSS. Availability: My time zone is GMT+7, but I am flexible on working time, even at midnight. If you want to work with me for more than 30 hours, just say it, I will consider working more. Let’s work together to turn your idea into reality!
    vsuc_fltilesrefresh_TrophyIcon Restful API
    RESTful API
    Database
    Database Architecture
    Git
    Apache Kafka
    Spring Framework
    Apache Spark
    PostgreSQL
    Golang
    Scala
    JavaScript
    Java
    Python
    Redis
  • $150 hourly

    • 5.0/5
    • (9 jobs)
    Hey there, My name is Jonathan and I offer services as a fractional CTO, full-stack developer, and personal privacy consultant. Let me tell you a little bit about how I got here... I've been working with the web stack since I was young but started out my career about 12 years ago when I started working with WordPress and front-end development. I was able to use those skills to land myself a job at a Silicon Valley tech startup as a front-end engineer. I worked across the web stack using the EmberJS and Rails frameworks. Eventually, I was offered a role as the CTO /technical co-founder of a Real Estate Tech startup. I jumped at the opportunity. It was there that I developed skills as a backend developer, infrastructure architect, and as well as a leader. I built our SAAS application from the ground up and worked across the stack implementing agile methodologies and business processes across multiple domains. We grew that company over the course of 4 years and successfully exited in 2021. After my exit, I stayed with the company leading development and product management. We grew the team from 2 developers to 7 and worked to scale the product and infrastructure. My work included scoping technical projects, leading daily standups, code reviews, creating and managing tickets, and holding interviews for both product and development. Currently, I work as a Fractional CTO. I use the skills I've learned to help bolster teams with a seasoned software development mind. My skills range from infrastructure to full-stack development, building development teams, leading a development team from the product or dev side. I also dive deep into the business side: setting up processes, implement best practices, reducing costs, and more. I specialize in taking products from 0 to 1 or idea to inception as well as jumping in to take over projects stuck in development hell in order to get them back on track so that they deliver on time and on budget.
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Amazon S3
    Laravel
    Amazon EC2
    PHP
    DevOps
    MySQL
    IT Consultation
    RESTful API
    Amazon Web Services
    React
    Front-End Development
    Git
    Vue.js
    SaaS
    JavaScript
    Bootstrap
    HTML5
  • $45 hourly

    • 4.9/5
    • (10 jobs)
    I'm an expert symfony developer (15+ years in symfony framework) with extensive experience in building high quality sites. Having 16 years of experience range from building responsive mobile sites that work well cross-browser to building scalable sites for the industries like Hospitality management with membership as well as social media integration, Staffing, Financial, Real Estate, Travelling, Mobile recharge, IPTV and ISP recharge, Online Magazine, Online Store, Job Portal and Portal for Online Video etc. I would like to work on projects with a team (or individually) that cares about creating beautiful and usable interfaces. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I am flexible with my working hours and I'm happy to work closely with any existing freelancers you work with. I look forward to hear from you!
    vsuc_fltilesrefresh_TrophyIcon Restful API
    Laminas
    Docker Compose
    PhpStorm
    JavaScript
    Symfony 4
    jQuery
    PostgreSQL Programming
    Doctrine ORM
    MySQL Programming
    RabbitMQ
    Docker
    NGINX
    RESTful API
    PHP
    Symfony
  • $35 hourly

    • 5.0/5
    • (19 jobs)
    Experienced developer proficient in Laravel, PHP, VueJs/Nuxt, and AdonisJs. My projects usually involve web and microservices development, including developing REST APIs, Vue applications (SPAs), and application architecture. Programming: - SQL, PHP, JavaScript, TypeScript, Bash Frontend: - VueJs, Vuex, Pinia, Vue Router, Vuetify, Vuexy, Nuxt, Vite, Composition API - Javascript, JQuery, HTML, CSS, SCSS, SASS, BEM Style - Jetstream, Livewire, Inertia. - CSS Framework: Bootstrap, Tailwind, Bulma, Materialize Backend: - PHP, Laravel, Lumen, Laravel Echo Server, Python - NodeJs, AdonisJs, Socket/Websocket - Database: MySQL, MariaDB, SQLite, Redis, Memcached - Integrations: ChatGPT/AI Server: - Configure Server on GCP, Digital Ocean and Amazon AWS Cloud - Setup Nginx, Apache, Vercel, and Caddy Server Others/Tools: - Experienced with Git, Git Flow Branching, Webpack, Gulp, or Grunt - Experienced with Web 2.0, Web 3.0 - Slicing from Mockup/Figma/Design, Adobe XD, and Sketch Expert - Refactoring, Revamp/Redesign, Building HTML Templates I can help you with your next project under the following categories: - Full Stack Web Application Development/Database Design/API Dev & Integration - Linux Server Administration/Deployment/Migrations/Hosting/DevOps
    vsuc_fltilesrefresh_TrophyIcon Restful API
    API
    Socket.io
    Tailwind CSS
    Database Architecture
    Nuxt.js
    Bootstrap
    Node.js
    React
    Sass
    Laravel
    PHP
    JavaScript
    MySQL
    Vue.js
    SQL
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