Upwork home
Sign up
Secondary

Hire the best Square API professionals

Check out Square API professionals with the skills you need for your next job.
Hire freelancers
  2. Development & IT Talent
  3. E-commerce Developers
  4. (Current) Square API Freelancers
  • US$12 hourly

    • 5.0/5
    • (43 jobs)
    I am a Certified Public Accountant with 10 years of accounting experience. I have handled various company accounts using accounting software such as QuickBooks Desktop and Quickbooks Online, Xero, and Zoho Books. I have worked with companies with various businesses such as Real Estate, e-commerce, service providers, Investments, SME's, etc. With my Advanced knowledge of US GAAP & International Financial Reporting Standards, I have handled the bookkeeping of various US companies.
    vsuc_fltilesrefresh_TrophyIcon Square API
    PayPal
    Xero
    QuickBooks Online
    MYOB Administration
    Google Sheets
    Financial Analysis
    CPA
    Zoho Books
    Bookkeeping
    Microsoft Excel
    Bank Reconciliation
    Account Reconciliation
    Intuit QuickBooks
  • US$45 hourly

    • 4.6/5
    • (92 jobs)
    ⭐ ⭐ ⭐ ⭐ ⭐ Guaranteed Satisfaction or Your Money Back! ⭐ ⭐ ⭐ ⭐ ⭐ ✅ 6+ years Experience in PHP, HTML, CSS, JavaScript, Liquid, ES6, and Mysql. ✅ Cutting Edge Website development with Responsive design and Cross browser Compatibility. ✅ WordPress Plugin Development ✅ WordPress Plugin Customizations ✅ WordPress Theme development and child theme customizations ✅ 4+ years experience in market leading frameworks and themes i.e. Avada, Divi, Genesis, Thrive Themes ✅ 3+ years experience in Elementor, WP-Bakery, Divi builder 3.0, Thrive Architect ✅ Custom PSD to HTML/WordPress conversion ✅ REST API development ✅ Integrating third party REST APIs with WordPress ✅ WordPress Turnkey Websites ✅ Custom Payment Integrations i.e Stripe ( one time, Subscription, partial payments ), PayPal, Braintree, Square Up, 2Checkout, Authorize.net ✅ Optimizing speed, Bug removal, and malware protection. ✅ Landing And Sales Pages Development ✅ 3+years Experience in Hubspot, Mailchimp, Active Campaign. I love to take challenging jobs and work with a solution-oriented approach. The idea that keeps me get going is how much value I would be adding to my client's business.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Custom Web Design
    User Experience Design
    WordPress Development
    Web Design
    Stripe API
    ClickFunnels
    Unbounce
    Wordpress Thrive Themes
    Ecommerce Website Development
    Squarespace
    WooCommerce
    Website Customization
  • US$75 hourly

    • 5.0/5
    • (197 jobs)
    Need Help with Your Square Online Website? I am a Square Online Certified Specialist and I offer these services: Website page layout and composition. Page redesign and transformation. eCommerce / items set up and organization. Square Appointments settings review and booking layout. Ready to Start Your Square Online website review? Jump right in with a 30 or 60 minute consultation through UpWork (see details below) Graphic design experience ranges from website layout, digital art composition, print production, to traditional painting, eCommerce and content management. And everything in between, using the latest design platforms, applications, and oodles of elbow grease. I've produced and managed projects using the following programs and applications: Adobe Creative Cloud, Weebly website platform; Square Online eCommerce platform; Square Appointments, HTML/CSS editing. Published contributor on Unsplash. Published contributor on Noun Project. Artist on Saatchi Art. I look forward to connecting with clients in need of my services. Thank you!
    vsuc_fltilesrefresh_TrophyIcon Square API
    Ecommerce Website
    Website
    Website Redesign
    Soft Pastel
    Weebly
    Acrylic Painting
    Square
    Adobe Photoshop
    Adobe Illustrator
  • US$20 hourly

    • 4.9/5
    • (36 jobs)
    My goal is to help businesses analyze their business so they can make proper decisions to help their business grow. I take the "paper" out of paper work to allow you to focus on your business. Over my career I have worked for both Private companies (doing full charge bookkeeping) and for Public (Fortune 500) companies where I had a wide range of duties, including reconciling, full charge bookkeeping, accounts receivable, accounts payable, etc. I have also worked in payroll and have a high level of knowledge and experience in that area as well. I multi-task very well, I am fast and efficient, organized and detail oriented. I enjoy working with numbers (I always have excelled in Math) and I love what I do. I give great customer service and have always had very happy clients. I am looking to grow my small bookkeeping business and I am looking to take on long term clients. Small or Large..., I welcome you to invite me to interview for your bookkeeping or accounting jobs. Over the years it has been my “specialty” to clean-up after less experienced bookkeepers by getting a company’s books in order and then maintaining their integrity. Integrity of a company’s books is my goal with each project. With 5+ years of experience working in challenging environments, I will provide a wide range of services, including: -Use bookkeeping software, spreadsheets, and databases -Enter (post) financial transactions into the appropriate computer software -Receive and record cash, checks, and vouchers -Put costs (debits) and income (credits) into the software, assigning each to an appropriate account -Produce reports, such as balance sheets (costs compared with income), income statements, and totals by account -Check for accuracy in figures, postings, and reports -Reconcile or note and report any differences they find in the records-Setting up bookkeeping and accounting systems Cheers, Muiz Expert/Accountant & Bookkeeper | QBO, Xero, Wave, NetSuite Expert Expert/Accountant & Bookkeeper | QBO, Xero, Wave, NetSuite Expert
    vsuc_fltilesrefresh_TrophyIcon Square API
    QuickBooks Online
    Inventory Management
    Accounts Payable Management
    Financial Reporting
    Accounts Receivable Management
    Xero
    Account Reconciliation
    Financial Accounting
    Tax Preparation
    Invoicing
    Balance Sheet
    Bookkeeping
    Payroll Accounting
    Microsoft Excel
  • US$11 hourly

    • 4.8/5
    • (60 jobs)
    I have extensive skills & experience in API integration, RESTfful, Integrating 3rd Party Application, Back-end Rest development, Podio API , Bigcommerce API, Shopify API, Amazon API, Payment Gateway Integration, Etsy API, eBay API, Twilio API, Square API, Stripe API, Braintree, PHP, WordPress, and JavaScript. I can build custom scripts for webhooks, Pushing/Pulling information Can make Web Applications, Shopping websites, Syncing Product details, Automate the flow, etc. Thanking you for looking at my profile!!!
    vsuc_fltilesrefresh_TrophyIcon Square API
    Project Workflows
    Stripe
    WooCommerce
    API Integration
    WordPress
    PHP
    JavaScript
    BigCommerce
    RESTful API
    Apps Script API
    Google Maps API
    Website Customization
  • US$40 hourly

    • 5.0/5
    • (97 jobs)
    🚀🚀 250+ completed projects and excellent feedbacks in 10 years! ⚙️⚛️ Tech stack: React, Laravel, Symfony, Django, PHP, Python, Vue, Javascript I am the CEO of Zimalab, we develop high-quality custom web apps, AI solutions, eCommerce platforms, MVPs, SaaS products, ERP/CRM systems, API integrations and business automations. ✅ MVP in 2-4 months ✅ QA & project management is free of charge ✅ Professional full stack developers (4-7 years experience) ✅ Proven work history with 100% Job Success We provide full-stack web development services and will help you with writing specifications, designing wireframes, UI/UX, coding, QA, deployment, speed optimisation and on-going support after release. There are 35 professionals in Zimalab working from the office and remotely. We develop MVP, SaaS, AI solutions, eCommerce, Marketplace, API, ERP, CRM, CMS, Booking Platform, Search Engine, Marketplace, Directory, Dashboards, API integration, Order Management System, Inventory, Warehouse Software, PWA, SPA, Chrome Extension, Reporting Tool, Admin Panel, Script, Parser 🐱‍💻 Modern technologies & management We work exclusively on modern and high speed and scalable technologies. We produce the code according to the PSR standards, so it’s easy to maintain and extend with new features. Experienced project managers control development plan with clear defined tasks and easy communication on Kanban boards. Weekly reports with regular demo updates and completely transparent development process. ⚙️⚛️ Tech stack Frontend: React.js, Material UI, Tailwind, Next.js, Vue.js, Nuxt.js, TypeScript, pixel-perfect HTML/CSS/JavaScript (ES6, ES7, ES8), jQuery / Bootstrap Backend: LAMP, PHP, Symfony, Twig, Composer, Docker, Laravel, Node.js, Firebase/Firestore, Mendable, Apollo GraphQL, Python, Django, RabbitMQ UI/UX Design: Figma, Visily, Photoshop, Invisionapp AWS: EC2, S3, Cloudfront, Cloudflare, AWS Lambda Database: MySQL, MongoDB, PostgreSQL Tools: Bubble, Retool, Strapi, Vercel, Algolia Charts, graphs and data visualisation: Kibana, Grafana, amCharts, d3.js, Highcharts.js AI: openAI, ChatGPT, GPT-3.5, GPT-4, Dall-E, DeepAI, StabbleDiffision, Whisper, Midjourney, DeepGram 🔌🌐 Key APIs we worked with: Twilio, Shopify, Google, Facebook, Paypal, Stripe, Authorize, Worldpay, JVZoo, Knet, Sendgrid, SendinBlue, Klaviyo, Mailchimp, Mandrill, QuickBooks, Yoodlee, Plaid, Finovera, TradingView, eBay, FedEx, USPS (Stamps), Kayak, Skyscanner , Amadeus, Smarthotel, Cubilis, Braintree, Chargebee, NeonCRM, Salesforce, Follow Up Boss, CallTools, Mautic, Eloqua, Copernica, Humanity, Xola, Soundcloud ⚡ ⚡ Boosting development speed in 2x! For the large projects we develop user side, admin and API integrations in parallel by allocating a a professional development team. You will get more results with shorter timeline. Also we could use existing UI theme or components for rapid MVP development of user interface. 📈 🎸 Business areas Our web products are already used in Education, Real Estate, HoReCa, Fintech, Art, Retail, Music, Marketing, Security, Distribution, Auto and many other business areas. Check the portfolio for relevant examples or contact us for details. 👍 👍 Recommended We have a proven work history and 100% job success rate. You may contact our references from USA, UK, Belgium, Denmark, Netherlands, Switzerland and Australia. Some of our clients already have been working with us more than 7 years and highly recommend to their partners. Let’s get started an efficient development and long-term collaboration now!
    vsuc_fltilesrefresh_TrophyIcon Square API
    API Integration
    Python
    Django
    ERP Software
    Full-Stack Development
    ChatGPT
    HTML
    Web Development
    Web Design
    Symfony
    Laravel
    JavaScript
    PHP
    Next.js
    React
  • US$20 hourly

    • 4.8/5
    • (278 jobs)
    I have been in the Web Development industry for over 15+ years. I am expert in WordPress, PHP, Mysql, Joomla, and Drupal. I have the experience to complete the job in a professional timely manner. My primary objective here is to provide economically feasible web development services for my clients, increase brand awareness, and out perform my competitors in every aspect. Skills: React Js Node Js React Native Amazon EC2 Google Cloud Hosting PHP Json API MYSQL WordPress Joomla Ebay store setup Photoshop HTML CSS Laravel Prestashop etc
    vsuc_fltilesrefresh_TrophyIcon Square API
    Google Cloud Platform
    Amazon EC2
    Laravel
    jQuery
    Joomla
    PHP
    WordPress
    JavaScript
    Shopify
    Landing Page
    WooCommerce
    Divi
    Gravity Forms
    Magento
    PrestaShop
  • US$120 hourly

    • 4.3/5
    • (190 jobs)
    HighPower Data Solutions provides customized FileMaker solutions for businesses to access their data on mobile, web, and desktop. We also provide website development and backend support. As a certified FileMaker Pro developer, HighPower has been developing commercial FileMaker solutions since the mid 1990's. We can provide a great database solution for you and your business. We are based in Minneapolis, MN and certified by FileMaker, Inc. in FM 10,11,12, 13, 14, 15, 16 and 17. We will provide you with Excellence, Value, and Confidentiality.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Product Development
    Google APIs
    Software Design
    Mail Merge
    Mailchimp
    Database Modeling
    Database Testing
    Customer Relationship Management
    Data Scraping
    Business Intelligence
    Database Management
    Database Design
    Database Report
    Database Integration
    Claris FileMaker
  • US$11 hourly

    • 4.6/5
    • (55 jobs)
    Hi, With over 8 years of experience in Web Development, I specialize in creating custom websites for both corporate and startup settings. My career has been dedicated to designing and developing a variety of websites using Laravel, Vue.js, React.js, HTML5/CSS3, PHP, MySQL, and JavaScript. I've worked on projects for startups, small businesses, and individuals. I am passionate about building, coding, and maintaining clean, professional, and user-friendly websites I am well-versed in working with various third-party API integrations, implementing one or two-way synchronizations as per specific requirements. Whether you need assistance in bringing a website from design concept to a polished and professional completion or require support in maintaining and updating existing websites, I am here to help you and your business thrive. Back-end Technologies: PHP, Wordpress, Laravel, Codeigniter, Node.js Front-end Technologies: HTML, CSS, Bootstrap, Javascript, React.Js, Angular.Js Databases Technologies: MySQL, MongoDB, Firebase Shopify API Bullhorn API Integration POS API Twilio API Podio API Bigcommerce API Wocomerce API Joomla API Shopify API Xero API Toast API Integration InfusionSoft API, Mail chimp API, Aweber API Calendar API Amazon API Stripe Payment Gateway Paypal Payment Gateway Thanks & Regards Venkatesh
    vsuc_fltilesrefresh_TrophyIcon Square API
    Shopify Plus
    PHP
    Twilio API
    Bullhorn
    Front-End Development
    Google APIs
    PayPal Integration
    Google Maps API
    Custom PHP
    API Integration
    WooCommerce
    Stripe API
    RESTful API
    Laravel
  • US$130 hourly

    • 4.9/5
    • (387 jobs)
    I've been a full-stack web developer for 10+ years. Prior to working for corporations (Google, Deloitte, and ExxonMobil) as an individual contributor, I created websites and applications for local businesses which is where my passion for development began. This is something I continued pursuing during college and on the side. Eventually this grew into a real business that has grown to a team of 11 full-time developers dispersed throughout the United States working with clients like PayPal, 1Password, UCLA, and iHeart. If you're looking for someone who has the knowledge and experience working on projects that reach millions to projects that impact local communities, I look forward to speaking with you and seeing how my team and I can assist you! A few key specialties to point out: WordPress (custom theme & plugin development, APIs creation, headless) React (Vanilla, React Native, Next, Gatsby) PHP, Laravel, Node, and CMS (WordPress, Strapi, Contentful) Cloud Infrastructure (AWS, GCP, Azure, DigitalOcean) PS: You might see a bunch of existing contracts, these are kept open for the convenience of clients that might need a tweak made every few months. Instead of having them open up a new contract, I leave it open. There is available bandwidth for your project.
    vsuc_fltilesrefresh_TrophyIcon Square API
    WooCommerce
    Zapier
    React
    HTML
    DigitalOcean
    Next.js
    CSS
    Shopify
    Amazon EC2
    JavaScript
    Google Ads
    WordPress
  • US$20 hourly

    • 4.9/5
    • (86 jobs)
    Full Stack Genius at your service. As a seasoned IT- professional with over 12 years of experience, specializing in the design and development of web and mobile applications. I possess a proven track record of successful project implementations through a combination of technical proficiency and strategic acumen. Should you require any assistance with your project or seek IT-related consultation, I would be delighted to lend my expertise and help you achieve your objectives. Technical skills 1. PHP/MySQL, Laravel, 2. JavaScript, React Js, Node Js MEAN/MERN Stack, NoSQL 3. Custom API development and integration, 4. WordPress, Shopify, E-Commerce Websites with shopping carts and content management. 5. Real Estate website and Auctions & Deals software website portals. 6. Android/ Ios Mobile app Development 7. Experience building NFT marketplaces or should have in-depth knowledge in building NFTs and the marketplaces. 8. Demonstrate a good understanding of Blockchain fundamentals, the blockchain ecosystem, deployment topology and architectures, smart contracts, consensus algorithms.
    vsuc_fltilesrefresh_TrophyIcon Square API
    HTML5
    Laravel
    WordPress
    PHP
    JavaScript
    MySQL
    MVC Framework
    Mobile App Development
    CakePHP
    Search Engine Optimization
  • US$50 hourly

    • 4.8/5
    • (132 jobs)
    Seeking a position where I can use my professional experience with bookkeeping and basic accounting. I am a self motivated, problem solver with experience running the financial operations for a startup company. This includes reconciliation and balancing of receivables, bank and credit card statements, accounts payable, payroll, and proficiency in Quickbooks and Excel.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Human Resource Management
    Tax Return
    Accounts Receivable
    Accounts Payable
    Payroll Accounting
    Bank Reconciliation
    Data Entry
  • US$150 hourly

    • 5.0/5
    • (59 jobs)
    Are you looking to automate and streamline your business? I'm John-Paul, an official monday.com partner with a wealth of resources available. With over 10 years of experience in project management, workflow design, and process improvement, I specialize in helping businesses optimize their workflows and processes. I bring a deep understanding of Six Sigma methodologies and hold a PMP certification, ensuring that projects are managed efficiently and effectively. My expertise includes: Business Management Project Management Process Improvement Workflow and System Design monday.com AI Make.com Zapier Lucid Chart Draw.io Jotform Sharepoint Microsoft Typeform FormStack Hubspot Asana Zoho Quickbooks Stripe Citrix Active Directory Slack Gmail Outlook Google Let's jump on a Zoom call and build your dream workflow together. I offer a free 30-minute consultation. I'm also Expert Vetted on Upwork, placing me in the top 1% of freelancers on the platform.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Security Infrastructure
    Customer Support Plugin
    Project Management
    Security Analysis
    Computer Network
    Security Management
    Critical Thinking Skills
    Customer Service
    Time Management
    Jotform
    Automation
    Infrastructure Management
    Project Plans
    Microsoft SharePoint
  • US$30 hourly

    • 4.6/5
    • (160 jobs)
    Primary expertise includes Python, Ruby on Rails, React, jQuery/Javascript, CoffeeScript, HAML, CSS3, Git along with integrating Elastic Search, Sphinx, Apache Solr, MongoDB, RESTful and SOAP APIs. Also well versed with writing tests in RSpec & Cucumber and have done TDD (Test Driven Development)/BDD (Behaviour Driven Development) on several projects. Comfortable handling server setups & deployments and have experience working with Docker, Kubernetes, Dedicated servers, Amazon EC2, Heroku, Linode. Also familiar with implementing Langchain, GPT-4, Machine Learning, TensorFlow, Keras, PySpark & Data preprocessing using pandas and numpy.
    vsuc_fltilesrefresh_TrophyIcon Square API
    AWS Development
    Artificial Intelligence
    Data Science
    Machine Learning
    OpenAI API
    GraphQL
    MySQL
    MongoDB
    Ruby
    React
    Ruby on Rails
    Python
  • US$90 hourly

    • 5.0/5
    • (60 jobs)
    I’m an accomplished JavaScript | PHP Web developer offering 9+ years of experience working with high industry businesses. I’m an expert eCommerce specialist that integrates technology, design, marketing, content, and strategy to create a roadmap to achieve a positive ROI for all my clients. I embrace hard tasks and creative challenges in order to drive results. My project process is data-driven and highly iterative, I cut through the clutter that burdens many organizations. My main skills are WordPress WooCommerce and Shopify, and with these frameworks, my goals are always simple. I focus on four, core key metrics: - Enhancing User Experience - Increasing Lead Acquisition - Improving Conversion Rates - Generating more Qualified Leads and Sales My mission is to deliver meaningful work that is focused on a business core goals for growth. I hit those goals within 3 main touchpoints: - Marketing Strategy and Consultation - Website Design and Development - Implementing Digital Solutions For Positive ROI One thing I do pride myself in is the creation of highly appealing and feature-loaded websites for my clients. From every header to footer, all the information is organized perfectly with the implementation of stunning graphics. User experience is one of my top priorities.
    vsuc_fltilesrefresh_TrophyIcon Square API
    jQuery
    Heroku
    Website Optimization
    React
    SCSS
    MongoDB
    Theme Customization
    API Integration
    Graphic Design
    WordPress
    WooCommerce
    Liquid
    PHP
    Shopify
    JavaScript
    Shopify Plus
    Tailwind CSS
  • US$25 hourly

    • 4.2/5
    • (27 jobs)
    🏆🏆 𝗔𝗪𝗔𝗥𝗗-𝗪𝗜𝗡𝗡𝗜𝗡𝗚 𝗦𝗘𝗥𝗩𝗜𝗖𝗘 🏆🏆 ⭐⭐ 𝗖𝗿𝗮𝗳𝘁𝗶𝗻𝗴 𝗪𝗲𝗯𝘀𝗶𝘁𝗲𝘀 𝗶𝘀 𝗠𝘆 𝗣𝗮𝘀𝘀𝗶𝗼𝗻! ⭐⭐ 🔔🔔 𝗢𝘃𝗲𝗿 𝟭𝟬,𝟬𝟬𝟬 𝗛𝗼𝘂𝗿𝘀 𝗼𝗳 𝗪𝗼𝗿𝗸 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 🔔🔔 In search of a CMS expert well-versed in blockchain technology? Look no further! Whether you require a customized CMS solution or a blockchain-based application, I'm here to turn your vision into reality. I'm Ramesh, a World-Class eCommerce, Wordpress, WooCommerce, Shopify, PHP & Custom CMS Expert with over 10 years of industry experience, catering to diverse projects. ★★ 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 ★★ ========================== Frameworks/CMS: ✔ WordPress/WooCommerce/Plugin Development/Elementor PRO Page Builder/Divi/Membership Platforms/Real Estate Website Development. ✍ I've designed and developed numerous ecommerce websites on various CMS platforms (Magento, WooCommerce, OSCommerce, Prestashop, Zencart, Shopify, etc.) as per clients' requirements. - Payment Gateways: Stripe, PayPal, Braintree, WePay, Google Wallet - Node.js: Express, Sails, Socket.io, Async, Passport - PHP: Laravel, Symfony, Zend, Yii, CodeIgniter - Frontend: Bootstrap/Foundation, HTML, CSS(Less/SCSS), jQuery - Backend: Meteor, NodeJs, C#/ASP.Net/MVC, PHP - Database: MySQL, MongoDB, Redis, PostgreSQL, SQL - Testing: Mocha, Karma, Phantom, ProtractorJS, Cucumber ✍ ECOMMERCE: =============== - WordPress/WooCommerce - Magento - Shopify - Prestashop - Opencart - Oscommerce - Zencart ✍ SPECIALIZATION: ================ - Plugin Integration - Plugin/Theme: Setup, Development & Customization - Plugins/modules development - WooCommerce - WordPress Forms - Migration Project - Enhancements - Services for application maintenance @Additional Services I Offer: ✔ PSD to HTML ✔ PSD to WordPress ✔ Responsive Website ✔ Full E-commerce Website: WooCommerce, Shopify ✔ Custom Portfolio/Business Websites ✔ WordPress Websites ✔ Shopify Websites ✔ Magento Websites ✔ Twitter Bootstrap Teamwork: - S-lack - Scrum, Kanban, XP experience - Github, Gitlab, Bitbucket, SVN Above all, I ensure transparent communication with clients, keeping them updated on project progress and swiftly addressing any queries or concerns. When initiating a new project, I prioritize clear communication with clients to understand their needs and project vision thoroughly. With my diverse professional solutions, I can enhance your efficiency and contribute to your business growth. Cheers!!!
    vsuc_fltilesrefresh_TrophyIcon Square API
    Custom PHP
    DeFi
    Blockchain
    WordPress e-Commerce
    MERN Stack
    NFT Marketplace
    WordPress Landing Page
    Smart Contract Development
    Plugin Development
    WordPress Customization
    WooCommerce
    WordPress
    Plugin Customization
    WordPress Plugin
    WordPress Theme
  • US$90 hourly

    • 4.8/5
    • (31 jobs)
    I specialize in constructing custom business software designed to enhance your operational efficiency - a crucial driver of profitability. At present, my primary focus is on developing tailor-made AI applications. The core application enables AI researchers to evaluate multiple AI models simultaneously, initiate dialogues between two or more models for chatbot testing, and integrate AI with vector databases. It also facilitates AI automation and other unique, customized functionalities. This AI research platform can serve as a robust foundation for your customized AI application. I can seamlessly integrate various web services into your custom application, including, but not limited to, Square, Quickbooks, Shopify, Gmail, Google calendars, and Amazon Simple Email System. Together, we can transform your business processes into a harmonious, efficient system that propels your growth and success. Since launching my professional software development career in 2002, I have honed my skills in creating intricate custom business applications. I can provide testimonials from 15 active clients over the past year, and you're welcome to connect with as many as you wish. On average, my clients have enjoyed a fruitful partnership with me for seven years. The key to business efficiency lies in the automation of labor-intensive tasks and effective integration with online business tools. I deliver applications that are accessible via desktop, web, or mobile platforms. Essentially, I construct a dynamic control panel that caters to business owners, employees, customers, and vendors, each with varying access rights. My development work primarily utilizes the FileMaker application development environment, supplemented by Javascript, HTML, and CSS. FileMaker is an efficient and modern tool for creating customized business applications compatible with Mac/Windows, websites, and mobile devices. Typically, new clients approach me with a jumbled mix of Excel spreadsheets, Word documents, and mailing lists used for company management. For instance, the application in the displayed image began as Excel spreadsheets and Word documents. The client found their system increasingly unmanageable and frustrating for their employees. In response, I designed a comprehensive dashboard that streamlines and controls all aspects of their business.
    vsuc_fltilesrefresh_TrophyIcon Square API
    HTML
    Google APIs
    App Development
    API
    Square
    Intuit QuickBooks
    Claris FileMaker
    CSS
    Database Design
    Microsoft Excel
    JavaScript
  • US$185 hourly

    • 4.0/5
    • (75 jobs)
    10 Years experience with SAP ERP Implementations Includes: SAP Business ONE, SAP ECC 6.0, SAP R/3 Various tools to assist with SAP management tasks such as ARIS, Winwhuttle Business Process Re-Engineering Consultant on various SAP projects. SAP Business ONE Implementation Expert! I am the author of the book "SAP Business ONE Implementation Guide". Development and certification of various AddOns for SAP Business ONE. Expertise with EDI, Crystal Report Design, eCommerce Integration 5 years with various eCommerce platforms includes Hybris, Magento, WooCommerce, Custom eCommerce etc. Architecture Design for Cloud Systems and Hybrid Cloud Concepts Utilizing Amazon AWS, VMWare, Windows Servers, Linux Server Expert in solution troubleshooting for performance issues Design continuous integration concepts to connect eCommerce with ERP, CRM and other 3rd party systems 5 years experience with Data Integration and automation. BigCommerce and SAP integration PayPal and SAP Integration SAP Report Extraction and Automation SAP Integration Platform development Certificatons: SAP R/3 4.7 Certified by SAP Academy London for PP (Production Planning) module Delft Professional Certificate for Text Mining & Analytics Other Skills: SAP Business ONE HANA HANA Winshuttle Studio (Allows to easily automate SAP integration tasks) ARIS Toolset (Process Management Tool mainly for SAP) Microsoft Dynamics 365 Enterprise Edition (AX) SQL Expert Oracle, SQL Server, MySQL Tableau Dashboard Design and Analytics Python Scripting Linux WordPress (High-End WordPress Implementations with more than 5000 users) API Integrations Custom API Design and Implementations (e.g. RESTful API for SAP) Author: SAP Business ONE Guide (Published with PacktPub) SAP BI Edge (R/3) (Published with Espresso Tutorials) SAP Software Certification Designed, coordinated Offshore Development of software that was then certified by SAP Managed the full certification process with SAP IT Network Architecture Design - Windows and Unix Server network design - Database Server scaling and configuration for Oracle Clusters - Cloud based solution integration with local network using Amazon AWS services - Virtual Machine Infrastructure implementation based on VMWare, Microsoft Hyper-V - High-Availability Server Design - Disaster Recovery Backup Strategy Design Microsoft Visual Studio Software Development - Managed Project using Team Software - C# eCommerce project - Utilized various additional technologies such as Python, JavaScript, CSS etc - Database Design - Software Testing and Automation of testing using OpenSource tools Custom Software Development Services - Asp.net Development Services - Custom ERP System Design and Implementation - eCommerce and ERP Integration With the many years of experience with ERP systems and custom software design, I can help you develop your customized ERP solution or recommend an existing standard ERP.
    vsuc_fltilesrefresh_TrophyIcon Square API
    EDIFACT
    Inventory Management
    Ecommerce
    API Integration
    SAP
    ERP Software
    Supply Chain Management
    SAP Analysis
    SAP CRM
    Information Technology Strategy
    Management Consulting
    SAP Business Warehouse
    Software Design
    SAP ERP
    SAP BusinessOne
  • US$120 hourly

    • 4.8/5
    • (39 jobs)
    From France, currently based in Leeds, UK. 15 years of professional experience. I design and build web and mobile apps, management systems, online stores and marketplaces. - 10 years working in communication agencies - 5 years working as a freelancer. Master's Degree in Information & Communication, specialty Media Engineering.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Shopify
    Web Development
    Ecommerce Website
    HTML
    JavaScript
    CSS
    API
    PHP
    WordPress
    API Integration
  • US$35 hourly

    • 4.9/5
    • (71 jobs)
    🥇 Top Rated UI/UX Designer with Masters Degree in Design ‍💻 10+ years of experience - Art Director 🥁 Projects winning Awwwards, CSS Design Awards, W3 Awards, and more 🧑💡 Searching for a professional who creates innovative and profitable apps? Contact me. I AM A PRODUCT DESIGNER SPECIALIZING IN WEB AND MOBILE PRODUCT DELIVERY (DESIGN AND DEVELOPMENT). FROM STRATEGY TO LAUNCHING. 𝐌𝐘 𝐒𝐊𝐈𝐋𝐋𝐒: • Web design (UX/UI); • Mobile design (UX/UI); • User flow creation; • Wireframing; • Creating clickable prototypes; • UX strategy; • A/B Testing, Interviews; • Web & Mobile application design Audit; • Mentoring and art direction; • Mindmap / Customer Journey Map creation; • E-commerce design; • Logo creation; • Branding / corporate Identity creation; • Style & colour guideline creation; • Landing page design; • Marketplace / Social app design; • SaaS product design; • Icon, UI Kit design; • Website development; • CMS development; • Fullstack (frontend & backend) web development. 𝐓𝐇𝐄 𝐓𝐎𝐎𝐋𝐒 𝐈 𝐔𝐒𝐄: • Figma • InVision • Sketch • Adobe XD • Illustrator • WordPress • Webflow • HTML 5/CSS 3 (& frameworks) • JavaScript • Trello, Asana, Basecamp, Jira 𝐌𝐘 𝐓𝐈𝐌𝐄𝐅𝐑𝐀𝐌𝐄𝐒: 🏠 Home Page Design (design): 12 - 15h 📄 Inner Page Design (design): 6 - 8h 📱 First Mobile app screen (design): 6 - 8h 📱 Next Mobile app screen (design): 4 - 6h 𝐌𝐘 𝐖𝐎𝐑𝐊𝐈𝐍𝐆 𝐇𝐎𝐔𝐑𝐒: 10 am – 7 pm GMT+4 Monday – Friday️ ☎️ Contact me now to discuss more! I'm here and open to collaboration. ⭐️behance/sapienix ⭐️dribbble/sapienix ⭐️sapienix.com/ 🔑𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒: UI/UX, UI Design, UX design, User Interface Design, web design, Graphic design, Landing Pages Design, User Experience Design, Web & Mobile Design, Responsive Web Design, UI Research, User Flow, Android and iOS app design, pitch deck presentation design, mobile design, Android app design, Graphics & UI Design, website wireframing, eCommerce web design, Google Material Design, Material UI, Balsamiq, Clickable prototype, Export Assets from Sketch, iOS and Android guideline, WordPress design, Website Wireframing, Animations creation, Branding, User Interface, iOS app design, prototype design, responsive web design, Webdesign, Android guidelines, Infographics design, logo design, Material Design, Marvelapp, eCommerce app design, icon design, website design, Principle, Adobe Photoshop, GUI design, User interface designs, Figma, UX Research, iOS guidelines, WordPress design, Animations creation, iPhone, Sketch, App, Landing Page, Illustrator, Guidelines, Long term, Visual Design, iPhone Design, Search, SAAS, Design Expert, Graphics, Redesign, Graphic Design Guru, Branding, Desktop, User Experience, Interaction Design, CSS3, HTML5, Webflow, Effective, Update, Team Leader, Creation, Design Thinking, Promo, Google, Identity, Testing, Logotype, Android, Productive, Job, iOS, Solutions, platform design, Head of Design, Advertising, Logo, Web-design, A/B Testing, Application, Infographics design, Website Prototyping, Management, Wireframing, Agency, Art Director, Creative, Adaptive, Responsive, Adobe, Mobile UX Design, Desktop app design, Mock-up, Adobe Creative Suite, Information Architecture, Usability Testing, Design Thinking, Visual Design, User-Centered Design.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Illustration
    Mobile UI Design
    Wireframing
    Logo Design
    Graphic Design
    Startup Consulting
    Landing Page
    Wireframe
    Prototype
    SaaS
    Platform Designer
    Website Redesign
    Figma
    Mobile App Design
    UX & UI
    User Interface Design
    Concept Design
    Web Design
    User Experience Design
  • US$80 hourly

    • 4.3/5
    • (44 jobs)
    🌟 Expert WordPress Developer Specializing in E-Commerce & E-Learning 🌟 Looking for a maestro in the world of WordPress? Your quest ends here! With over a decade in the field, I've honed my craft as a premier WordPress developer. My journey isn't just surface-level; it delves deeply into the intricacies of WordPress to provide effective and tailored solutions. Highlights of My Expertise: Proficient in PHP: Mastery in PHP allows me to go beyond mere aesthetics, empowering me to customize the core of your site for optimal functionality. Custom Plugin Pioneer: Having developed 6 unique plugins, I've proven my mettle in crafting solutions that echo with client-specific needs. E-Commerce & E-Learning Maven: My specialty lies in the realm of E-Commerce and E-Learning. Whether you're aiming to sell products, courses, or services, I've got the expertise to create platforms that captivate and convert. Your vision, coupled with my expertise, is the formula for digital success. Let's embark on this journey together!
    vsuc_fltilesrefresh_TrophyIcon Square API
    API
    PHP
    LearnDash
    On-Page SEO
    CSS
    WooCommerce
    Search Engine Optimization
    SEO Keyword Research
    SEO Audit
    HTML
    Graphic Design
    Web Design
  • US$35 hourly

    • 4.7/5
    • (86 jobs)
    Build, Manage, and Promote: services for your website from start to finish. I own a Legend Level Wix Partner Agency that is Wix Certified and experienced in web design, API integration, custom/advanced features, eCommerce, search engine optimization (SEO), and more. We offer all of our services on all Wix Editors: Classic, Editor X, and Studio. I work hard to earn the best feedback from my clients. If you are looking for a professional at an affordable price, look no further. Browse my portfolio, feedback, and projects, and please do not hesitate to reach out with any questions you may have.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Web Development
    Website Redesign
    JavaScript
    Wix
    API Integration
    Branding
    Digital Marketing
    Wix SEO Wiz
    Google Ads
    Social Media Advertising
    Search Engine Optimization
    Competitive Analysis
  • US$45 hourly

    • 5.0/5
    • (4 jobs)
    I am a self-driven and detail-oriented developer, having a solid history of Front-end/Back-end Javascript frameworks such as React, Angular, Vue.js, Express, Next, Firebase, etc. I am also open to learning others' interesting technologies and expand my skillsets. I deliver value quickly by rapidly absorbing and retaining new information
    vsuc_fltilesrefresh_TrophyIcon Square API
    Zapier
    TypeScript
    Angular
    Firebase
    Tailwind CSS
    Node.js
    React Native
    Automation
    Airtable
    Make.com
    Vue.js
    React
    JavaScript
    Python
    API Integration
  • US$55 hourly

    • 4.6/5
    • (50 jobs)
    I have over 10+ years of Web/Mobile development experience and I have released numerous websites/applications. I'm also very familiar with back-end development using PHP, and Node.js, so I can create custom APIs and integrate them with your App so that it is truly unique and engaging. - Objective-C/Swift, Java/Kotlin, Flutter/Dart, C# - Flutter/Dart, React Native, .Net, ASP.NET, Qt, QML, GUI, PyQt - Xcode, Andriod Studio, Xamarin, Unity3d, Visual Studio Code - React, Next.js, Vue.js, Node.js, NestJS, Ruby on Rails, Express.js - Javascript, Typescript, HTML/HTML5, CSS/CSS3, Bootstrap, WebGL - PHP, Laravel, Zend, WordPress - AR/VR technologies - AWS, Azure - UI / UX Design What really makes me different from others is great attention to detail, excellent communication with clients/investors/team members, meeting deadlines, high quality, well-commented and structured code, and bug-free and long-term maintenance. I always cooperate with you and provide you with creative and innovative ideas to add value to our projects with my experience and profession. You will enjoy working with me, a creative, responsive, and hard-working partner.
    vsuc_fltilesrefresh_TrophyIcon Square API
    React Native
    Flutter
    Objective-C
    Swift
    Firebase
    Unity
    JavaScript
    Java
    Kotlin
    Vue.js
    Node.js
    React
    Angular
    TypeScript
    PHP
  • US$30 hourly

    • 5.0/5
    • (29 jobs)
    🏆 TOP RATED PLUS FULL STACK DEVELOPER 🏆 💯 100% Job Success ☎️ Excellent Communication Skills 💻 8+ years of expertise in Web Development 🕛 Full-time availability I am skilled JavaScript developer with proficiency in JavaScript libraries React.js /AngularJS and possess working hands on experience in User Interface Components development and implementing them using React.js workflows; like as Redux and Flux. My Skill set : - --------------- • AngularJs/2/4/5/6/7/8, Angular Materials, (Directives, Components, Pipes, Services) • React, Redux Saga, React-Router, ReactDOM, Pure React • Developing new user-facing features & Familiarity with RESTful APIs • Node.js, Express.js, Hapi, Mongoose • Ionic app development(Ionic 3.0/4.0) • Created backend with the NodeJS environment along with ExpressJs, and Mongoose. • Cloud Services : AWS EC2/S3, Firebase Real time database • Sound knowledge on modern front-end build pipelines and tools • API, Rest API design and implementation, GraphQL • Vue js, Vuex, Vuetify, Vue Material • Google Map and Mapbox API Integration • Adobe PhotoShop, Illustrator, Xd, Figma, Sketch and balsamiq. • Usability testing, Journey mapping, User research, User flows • Extensive experience with front-end development tools such as Babel, Webpack, NPM. • eCommerce development • Building reusable components and front-end libraries for future use • Translating designs and wireframes into high quality code • Optimizing components for maximum performance across a vast array of web-capable devices and browsers • Firebase (Cloud Functions, Real-Time Database, Firestore, Authentication, Cloud Storage) • AWS/Azure/Build and Deployment Pipelines for Continuous Deployment • Unit Testing If you have any project, I would like to speak with you so that I can have a clear understanding of your needs and vision of the project. Thank you in advance for your time and consideration.
    vsuc_fltilesrefresh_TrophyIcon Square API
    ChatGPT
    Azure DevOps
    GitHub
    TypeScript
    SaaS
    Tailwind CSS
    UX & UI
    Node.js
    Vue.js
    ASP.NET
    CSS 3
    AngularJS
    React
    HTML5
    JavaScript
  • US$40 hourly

    • 4.9/5
    • (45 jobs)
    Experienced in cross-platform and native mobile apps development, admin panels, dashboards, cloud, IOT solutions, web applications and back-end. My specialization: geolocation and Google Maps / MapBox / OpenStreetMap; VoIP apps for voice and video calls; payment system integration; social network API for authorization; REST API and Database providing; BL/BLE with other devices; chats; machine learning; Application types I have created: tracking and navigation apps with GPS and BL/BLE usage; dating and social network apps; messaging applications; multimedia and entertainment apps; application for cooperation with IOT devices; manufacturing app to work with company's staff and other infrastructure. I try to approach the project solution structurally and uniquely, which allows me to save clients' time. I know that it is very important for customers to be always in touch, so I do not have days off and I try to answer around the clock.
    vsuc_fltilesrefresh_TrophyIcon Square API
    UI/UX Prototyping
    React Native
    Angular
    Android
    Embedded Application
    Swift
    Flutter
    Qt Framework
    Internet of Things Solutions Design
    QML
    C++
    Java
  • US$14 hourly

    • 5.0/5
    • (44 jobs)
    🔸 Top-Rated developer by Upwork. 🔸 100% Quality work. 🔸 Capable to work on all time zones. "I have more than 10 years of experience in websites design/development which includes Shopify, WooCommerce, Squarespace, PrestaShop etc. I can also design the web pages using Photoshop, HTML/CSS etc. I know all the ins and outs of Shopify and WordPress development and customization.
    vsuc_fltilesrefresh_TrophyIcon Square API
    Search Engine Optimization
    SEO Keyword Research
    Front-End Development
    WP Rocket
    Website Customization
    MySQL
    Landing Page
    CSS
    PHP
    jQuery
    AngularJS
    WordPress
    WooCommerce
    HTML
    Shopify
  • Want to browse more freelancers?
    Sign up

How it works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Square API Freelancer on Upwork?

You can hire a Square API Freelancer on Upwork in four simple steps:

  • Create a job post tailored to your Square API Freelancer project scope. We’ll walk you through the process step by step.
  • Browse top Square API Freelancer talent on Upwork and invite them to your project.
  • Once the proposals start coming in, create a shortlist of top Square API Freelancer profiles and start to interview.
  • Hire the right Square API Freelancer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Square API Freelancer?

Rates charged by Square API Freelancers on Upwork can vary with a number of factors including experience, location and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Square API Freelancer on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Square API Freelancers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Square API Freelancer team you need to succeed.

Can I hire a Square API Freelancer within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Square API Freelancer proposals within 24 hours of posting a job description.

Schedule a call

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.