Upwork home
Sign up
Secondary

Hire the best API Integration Freelancers in Chicago, IL

Check out API Integration Freelancers in Chicago, IL with the skills you need for your next job.
Hire freelancers
Clients rate API Integration professionals
Rating is 4.7 out of 5.
4.7/5
based on 121 client reviews
  • $55 hourly

    • 5.0/5
    • (55 jobs)
    Proficient in Google Apps Script, Google Sheets, AppSheet, Notion, and Adobe Photoshop. Detail oriented, with logical, analytical skills and the creative energy to get things done. Building business and data workflows and API integrations in Google Sheets and AppSheets with automations through Google App Script. Data processing, cleaning and analysis. Amazon, Shopify, Google Ads, Facebook Ads, Keepa API integration with Google Sheets.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Supply Chain & Logistics
    Keepa
    Art & Design
    Status Reports
    AppSheet
    Automation
    Google Apps Script
    Image Editing
    Adobe Photoshop
    Google Sheets Automation
    Spreadsheet Software
    Data Entry
    Google Sheets
  • $90 hourly

    • 0.0/5
    • (0 jobs)
    Solutions Custom solutions for your business. Leverage your existing software applications using data integration and increase end-user productivity. Applications A/P and A/R Workflows Commissions Split Customer Relationship Management (CRM) ERP Integration General Ledger Invoicing Material Resource Planning (MRP) Mortgage Management Service Request Tracking (SRT) Trades Management Industries: Agriculture Oil and Gas Extraction Manufacturing Wholesale Trade Retail Trade Transportation and Warehousing Information Finance and Insurance Real Estate and Rental and Leasing Waste Management Accommodation and Food Services Other Services
    vsuc_fltilesrefresh_TrophyIcon API Integration
    C#
    Database Development
    Microsoft Access Programming
    Microsoft Azure SQL Database
    Database Design
    SQL
    Database Management
    Microsoft SQL Server
    SQL Programming
    Microsoft SQL Server Programming
    Database Management System
    Zoho CRM
    Database
    Database Integration
  • $35 hourly

    • 0.0/5
    • (1 job)
    I am a junior web developer who enjoys challenging problems and building solution based processes and websites for small businesses. I learn quickly and can apply knowledge to a new situation with confidence. I thrive in both independent and group settings to help clients reduce mundane or repetitive administrative tasks, so energy can be spent on the bigger picture elements. I would enjoy the opportunity to help you along your journey! - Know HTML, CSS, Database, REST APIs, Python, and GitHub, JS, Express, React, Docker (Images and Containers), AWS ECR, AWS S3, AWS Cloudfront, and AWS App Runner, Full Website development - Run and manage project from beginning through end - Regular check-ins to enable constructive communication, maintain relationship and expectations
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Microservice
    Flowchart
    SQL
    Communication Skills
    Relational Database
    Docker
    Testing
    NodeJS Framework
    Flask
    Python
    ExpressJS
    Back-End Development Framework
    React
    Front-End Development Framework
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Experienced software engineer with 5 years of experience developing web applications, features, automation systems for the insurance, finance, and banking industries. Skilled in scalable solution development, innovative strategy crafting for high availability services, proactive learning, and driving client-stakeholder engagement through data intelligence for enhanced program effectiveness.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Testing
    JavaScript
    Web Application
    Web Development
    CMS Development
    Node.js
    TypeScript
  • $55 hourly

    • 0.0/5
    • (1 job)
    👋Hi, there. With over 8 years of experience in the AI industry, I specialize in developing and customizing AI-driven chatbots, Large Language Model (LLM)-based applications, and Retrieval-Augmented Generation (RAG) bots. My goal is to enhance user experiences and automate processes, delivering measurable results for businesses across various sectors. 🎯Tech Stack Specialization: 🔹 Backend: Python(FastAPI/Django/Flask) , Node.js 🔹 Frontend: React, Next.js, Tailwind CSS 🔹 Database: MySQL, PostgreSQL, MongoDB,Prisma 🔹 Authorization: Clerk 🔹 Additional Features & Optimization: Next.js 🎯AI & Chatbot Expertise: 🔹 Deep knowledge of ChatGPT, GPT-4, and other Large Language Models (LLMs) 🔹 Proficiency in NLP, AI Chatbots, and AI Agent frameworks 🔹 Hands-on experience with tools like OpenAI, LangChain, Dall-E-3, and Whisper 🔹 Expertise with vector databases such as Pinecone, FAISS, and Chromadb for semantic search and document-based Q&A solutions 🎯AI Agent & Automation Specialist: 🔹 Skilled in developing and deploying AI Agents using platforms like CrewAI and Superagent.sh 🔹 Expertise in automation using Make.com, Zapier, and n8n, streamlining AI-driven workflows and business operations 🔹 Specializing in Custom AI Solutions, delivering tailored AI-powered chatbots and automation that meet specific business needs 🎯Advanced AI Technologies & Frameworks: 🔹 Vector Stored Database Specialization 🎯Pinecone, FAISS, Chromadb 🔹 AI Automation Tools Specialization 🎯Flowise, N8N, Zapier, Go High Level 🔹Framework Specialization 🎯LangChain, LlamaIndex, Next.js, Langraph 🔹 Open Source AI Agent Frameworks 🎯Swarm Agency, CrewAI, AutoGPT, AnythingLLM, Langflow Custom AI Solutions: 🔹 AI-driven chatbots tailored to enhance customer service and operational efficiency 🔹 Expertise in Prompt Engineering, creating highly accurate and context-aware prompts 🔹 Integration of LLMs for advanced conversational agents and OpenAI Assistants 🎯AI Solutions & Integration: 🔹 OpenAI Integration: Seamlessly integrate GPT-4 API for user prompts, question answering, summarization, and semantic search 🔹 Document-based Q&A and semantic search solutions using LangChain and LlamaIndex 🔹 Python-based Solutions: ChatGPT API, Whisper API, GPT-4 model, and more ✅Why Choose Me? 🎯Proven expertise in cutting-edge AI and automation tools 🎯Tailored solutions: I specialize in understanding your unique needs and developing bespoke AI chatbots and automation 🎯End-to-end AI solutions, from prompt engineering to deployment of fully functional chatbots and AI systems Let’s work together to bring your AI projects to life and transform your business processes! Best regards Biniam H. ☘KEYWORDS: AI Chatbots, ChatGPT, Dall-E 3, Prompt Engineering, AI Agents, Large Language Models (LLM), Retrieval-Augmented Generation (RAG), Semantic Search, LangChain, Python, React, Next.js, Tailwind CSS, Django, FastAPI, Flask
    vsuc_fltilesrefresh_TrophyIcon API Integration
    FastAPI
    LangChain
    Large Language Model
    React Native
    Natural Language Processing
    JavaScript
    Next.js
    AI Chatbot
    GPT-4
    React
    Python
    OpenAI API
    AI Agent Development
  • $110 hourly

    • 0.0/5
    • (1 job)
    Pursuing opportunities to advance my engineering career by collaborating with diverse clients and teams on innovative projects, ideally leveraging Vue.js and TypeScript. I excel in cross-functional collaboration with product owners, UI/UX designers, backend engineers, and QA teams. With a passion for new technologies, clean, reusable code, and adherence to industry standards, I combine technical expertise with a user-centered approach to deliver exceptional applications.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    TypeScript
    Unit Testing
    Vuex
    Vue.js
    CSS 3
    JavaScript
  • $60 hourly

    • 4.1/5
    • (77 jobs)
    Seasoned developer with expertise with custom applications, e-commerce, pwa, and ios/android development. I'm looking for work in the following areas: - RESTful API and GraphQL - Headless BigCommerce and Stencil Themes - CMS sites - Vue.js/Nuxt applications - Web Core Vitals optimizations
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Payment Processing
    JSON
    DNS
    Nuxt.js
    Google APIs
    API Development
    Payment Gateway Integration
    PHP
    JavaScript
    WordPress
    BigCommerce
    Theme Customization
    Vue.js
  • $39 hourly

    • 5.0/5
    • (10 jobs)
    I'm a web designer, developer, and digital marketer with more than 10 years of experience. The bulk of my work has been building marketing websites and ecommerce platforms.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Laravel
    Ruby on Rails
    Supabase
    Stripe
    Authorize.Net
    Landing Page
    Web Development
    Web Design
    Technical SEO
    Next.js
    React
    Shopify
    WordPress
  • $75 hourly

    • 0.0/5
    • (0 jobs)
    I am a senior Shopify developer with rich skills in UI/UX design and Shopify Plus. I have 7 years of experience in Shopify and built more than 20 Shopify sites successfully. My Skills are: -Shopify theme customization and custom theme development. -Shopify apps integration and custom app development -Shopify Liquid template / Shopify Theme kit -UI/UX design, Photoshop, Figma, Adobe XD -HTML/CSS, Javascript, LESS/SCSS, Bootstrap, Foundation -API integration into Shopify -Shopify SEO and CRO -Google Analytics, Facebook Pixel, Klaviyo -PHP/MySQL, Ruby on Rails Please get in touch with me. I can share my screen to show you lots of my works. Thanks.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Shopify
    Shopify Plus
    Shopify SEO
    Shopify Apps
    Adobe XD
    Liquid
    Figma
    Shopify Theme
    Adobe Photoshop
    JavaScript
    CSS
    AJAX
    HTML
  • $29 hourly

    • 3.0/5
    • (4 jobs)
    Hello, I'm Jon 👋 I'm dedicated to leveraging AI and automation to refine business processes. My background includes collaborating with industry giants in the tech sector and agile startups, enhancing their operations with tools like GPT-4, DALL-E 2, Make, Zapier, and along with other tools I use for web scraping data. I curate a newsletter via Linkedin, showcasing my deep expertise in deploying advanced AI solutions. If efficient, scalable systems are what you need, you're in the right place. ——— Here’s a bit more ( if you have a second) Nice to meet you! I’m Jon 👋. I transitioned from boosting efficiency at Fortune 500 companies and vibrant startups to aiding smaller businesses in achieving seven-figure revenues through tailored AI enhancements. Some of the impactful systems I've developed include: -Sophisticated lead generation and outreach systems that automate lead sourcing, qualification, and personalized engagement across multiple channels, -Dynamic content automation systems capable of producing everything from blog posts and social media content to comprehensive websites and videos, -Efficient onboarding automation for streamlining processes related to new client or employee integration, including automated payment setups and system integrations. -I have extensive experience across a broad range of CRM and project management platforms such as Monday, Asana, Trello, ClickUp, Airtable, , Salesforce, and more, along with numerous API integrations to enhance system functionalities. If you’re looking for a partner who is passionate about refining processes through automation and who meticulously crafts systems that stand the test of time, I’m your ideal candidate. No matter the duration of our collaboration, you’ll receive nothing but the highest quality systems and consistent communication. Looking forward to our future collaboration!
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Marketing Automation Strategy
    System Automation
    Data Scraping
    Email Automation
    Artificial Intelligence
    ML Automation
    CRM Automation
    Web Scraping
    Zapier
    Make.com
    AI Platform
    Social Media Chatbot
    Chatbot Development
    Marketing Automation
  • $15 hourly

    • 0.0/5
    • (0 jobs)
    💡 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐒𝐢𝐭𝐞𝐬 𝐓𝐡𝐚𝐭 𝐆𝐫𝐨𝐰 𝐘𝐨𝐮𝐫 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 Whether you need a dynamic eCommerce platform, sleek landing pages, or custom WordPress solutions, I create websites that captivate users and drive results. 𝐖𝐢𝐭𝐡 𝟕 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞, I’ve helped businesses scale by: - Crafting 𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝘄𝗲𝗯𝘀𝗶𝘁𝗲𝘀 with seamless payment systems like PayPal & Stripe. - Transforming 𝐅𝐢𝐠𝐦𝐚 𝐝𝐞𝐬𝐢𝐠𝐧𝐬 𝗶𝗻𝘁𝗼 𝗳𝗹𝗮𝘄𝗹𝗲𝘀𝘀 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝘀𝗶𝘁𝗲𝘀 that match your vision. - Designing 𝗰𝘂𝘀𝘁𝗼𝗺𝗶𝘇𝗲𝗱 𝘁𝗵𝗲𝗺𝗲𝘀 and integrating plugins for a tailored experience. I focus on delivering fast, functional, and visually striking websites that reflect your brand and enhance user engagement. Let’s collaborate to bring your WordPress project to life! 🌟 𝐏𝐫𝐨𝐨𝐟 𝐨𝐟 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞: 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐚𝐧𝐝 𝐏𝐫𝐚𝐢𝐬𝐞 𝐅𝐫𝐨𝐦 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 🔷 Transforming MediCare: eCommerce Website Designed a user-friendly, visually appealing website for MediCare, integrating secure payment gateways (PayPal/Stripe) to boost sales and customer satisfaction. The mobile-responsive design ensures accessibility across all devices. ✅ Client Testimonial: "Tallal built us a fantastic eCommerce site that's user-friendly and mobile-responsive, His attention to detail throughout the project was impressive. Great collaboration, highly recommended!" 🔷 Crafting a Standout Portfolio Website Translated a Figma design into a sleek, fully responsive website using HTML and CSS. The professional layout highlights achievements, creating a lasting impression and elevating online presence. ✅ Client Testimonial: "Tallal created a sleek, responsive website that perfectly showcases my work. It’s looking professional. Great job!" 🔷 eCommerce Website for Therapy Services Developed an intuitive eCommerce site for Therapy Services, enabling easy session bookings and product purchases. Integrated PayPal/Stripe for secure transactions, enhancing bookings and user satisfaction. ✅ Client Testimonial: "Tallal built an amazing eCommerce site for us! Booking sessions and making purchases is so easy now, we’re really impressed and will definitely hire him again in the future! 📞 Let’s discuss your project in more detail over a quick call. I’m excited to bring my expertise to your project and help you succeed!
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Theme Installation
    Theme Development
    Website Optimization
    Platform Plugin
    Shopify Development
    Responsive Design
    Ecommerce Performance Optimization
    Ecommerce
    Landing Page
    Page Speed Optimization
    Website Migration
    Bug Fix
    Web Development
    Web Application
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    Hello! 👋 Thank you for visiting my profile! As a proficient Full-Stack Developer with expertise in modern web technologies, I create scalable, effective, and clean solutions to realize your ideas. With a solid front-end and back-end programming background, I make excellent web apps customized to meet your business or personal requirements. 🌟 Client satisfaction is my top priority, and I strive to ensure 100% happiness with every project. 🎯 Technical Expertise 👨‍💻 Frontend Development: • React, Next.js, Vue.js • HTML, CSS3, Tailwind CSS • Firebase Authentication (Google, Facebook, Apple, etc.) 🛠️ Backend Development: • API Development & Integration • Debugging & Performance Optimization 🚀 Deployment: • Netlify, Vercel, Heroku, Render • Google App Engine, Docker ⚡️ My Services • Custom Web Application Development: Tailored solutions to meet your unique requirements. • Single Page Application (SPA) Development: Fast and seamless user experiences. • Progressive Web App (PWA) Development: Reliable, fast, and engaging web applications. • Responsive Web Design: Ensuring your app looks great on all devices. • Code Review & Refactoring: Clean and maintainable code. • Website Testing: Debugging and QA to ensure smooth functionality. • Search Engine Optimization (SEO): Enhancing online visibility. • Figma/Sketch to React/Next.js Conversion: Pixel-perfect and efficient implementation. • Microservices Architecture Development: Scalable and modular system design. • Third-Party Service Integration: Seamless integrations to extend functionality. With a commitment to excellence, I ensure timely delivery and a collaborative development process. Let’s build something amazing together! Contact me today to discuss your project. 🚀
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Tailwind CSS
    CSS 3
    HTML5
    Netlify
    Supabase
    Firebase
    MySQL
    PostgreSQL
    TypeScript
    Node.js
    Laravel
    Next.js
    React
    Web Application
  • $25 hourly

    • 4.7/5
    • (4 jobs)
    ⚡⚡⚡ Newly Activated Profile. Your support in hiring me would be highly appreciated. ⚡⚡⚡ Hello! I'm a full stack developer and graphic designer with over 10 years of experience. I specialize in custom web and mobile app development, using a range of technologies including WordPress, Shopify, Webflow, Wix, Squarespace, PHP, MySQL, PostgreSQL, MongoDB, Laravel, CodeIgniter, React JS, React Native, Next JS, Ionic/Angular, Python, Django, and Rest APIs. As a graphic designer, I excel in using Adobe Photoshop and Figma to create wireframes, mockups, logos, responsive website designs, mobile app designs, brochures, and business cards. My creative vision and attention to detail ensure that all of my designs are not only visually stunning but also user-friendly and effective. I also have expertise in API development with the best possible security measures to ensure that all data is secure. If you're looking for a professional who is passionate about coding and designing, always learning new skills to grow, and never says "impossible," then I'm the perfect fit for your project.
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Core PHP
    React
    WordPress e-Commerce
    Custom PHP
    React Native
    API Development
    Vue.js
    WordPress Multisite
    Plugin Development
    WordPress Theme
    Webflow
    Shopify
    WordPress Plugin
    Theme Customization
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    I’m a Software Developer with a strong background in desktop application development, AWS cloud services, macOS, and API integrations. My goal is to create efficient, reliable, and maintainable solutions that help businesses streamline workflows and deliver real value to their users. Over the years, I’ve built a variety of projects—ranging from custom desktop tools that automate repetitive tasks to cloud-based applications that integrate multiple APIs for real-time data processing. I’m passionate about delivering clear communication, clean code, and solutions that align with each client’s unique needs. What I Can Do for You - Develop or refine your desktop app to ensure a smooth user experience - Integrate and automate third-party APIs, saving time and reducing errors - Deploy and manage your application on AWS for cost-effective, scalable performance - Provide technical guidance and troubleshooting to keep your project on track I’m dedicated to meeting deadlines, exceeding expectations, and fostering open communication every step of the way. If you need a reliable partner to take your project from concept to completion, let’s connect and discuss how I can help. I look forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon API Integration
    Data Analytics & Visualization Software
    Web Development
    Web API
    Full-Stack Development
    Django
    Python Asyncio
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork 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 API Integration Freelancer near Chicago, IL on Upwork?

You can hire a API Integration Freelancer near Chicago, IL on Upwork in four simple steps:

  • Create a job post tailored to your API Integration Freelancer project scope. We’ll walk you through the process step by step.
  • Browse top API Integration Freelancer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top API Integration Freelancer profiles and interview.
  • Hire the right API Integration 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 API Integration Freelancer?

Rates charged by API Integration 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 API Integration Freelancer near Chicago, IL on Upwork?

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

Can I hire a API Integration Freelancer near Chicago, IL 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 API Integration Freelancer proposals within 24 hours of posting a job description.

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