API Integration Experts For Hire
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Sponsored Freelancers
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Hire sagar12222
بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ My name is SAGAR AHMAD. 100% Honest Freelancer ✨10+ years of experience✨ I am an expert on this web Designing, programming and developing world. Also, I have gathered vast knowledge about using coding, designing, markup languages and other things that are related to this sector....بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ My name is SAGAR AHMAD. 100% Honest Freelancer ✨10+ years of experience✨ I am an expert on this web Designing, programming and developing world. Also, I have gathered vast knowledge about using coding, designing, markup languages and other things that are related to this sector. I am always updated with new string of coding and browser compatibility. I love learning and implementing according to time. On time Percentage of jobs completed by the agreed deadline 96% On budget Percentage of jobs completed by the agreed price 97% FEATURED REVIEW: Sagar was very professional and flexible in his approach towards the project, completed things before time, understood requirements very clearly and was supportive during the entire project journey. great work by Sagar. Definitely recommended for projects. Anoop. What Makes Me The Best Choice for your project? ✨Creativity ✨Experience ✨Fast & Reliable Delivery ✨Complete Design Copyright to the Client ✨Completed 100+ Project's ✨24/7 Support ✨See my skills ✨ ✨Expert Frontend developer✨ HTML5/CSS , Figma/Adobe XD/PSD to HTML5 , Bootstrap , Landing Page Design python, React.js , Next.js , Angular , JavaScript , Vue.js , Nest.js , Typescript , Tailwind Logo Designing , Graphics Designing ✨Expert Backend developer✨ Node.js , DJANGO ✨Expert PHP developer✨ PHP , API Development && RESTful APIs , Wordpress && Theme Customization Laravel , Codeigniter , Symfony , WooCommerce , Shopify store setup Chatbot , Malware removal , Website speed optimization , ERP ✨SEO Expert✨ ✨Expert DataBase Developer✨ Data Management SaaS Development , MongoDB , Postgres , MYSQL ✨App✨ Flutter React Native Android ✨Another tech✨ Server Migration , Server Configuration , Networking Security and Setup AWS , Github, Bitbucket, Gitlab Trello, Jira Fulfilling clients need: I have always satisfied my past clients with my work. Thats why all of them gave me a five-star rating which of course is a huge achievement for me. They also recommended me for web programming projects. I always meet deadlines. Never hesitate to make the best use of my skill and knowledge in order to complete a project successfully. I believe I would be the best person in your project, and I am waiting for a positive response from you very soon. I am active on the internet. Thank you in advance for your time and consideration. regards, SAGAR AHMAD less -
Hire CVInfotech
Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 512 reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread...Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 512 reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread across ten platforms. What we build Custom software and SaaS platforms. Full stack, scalable, built to hand off cleanly. AI native products. ChatGPT, Claude and Gemini integrations, AI chatbots, voice agents, workflow automation. Ecommerce and marketplaces. Shopify, WooCommerce, multivendor platforms. WordPress, Laravel, React, Next.js and Node.js. Production grade, not template work. You will work directly with Akash (CTO, 14 years on this platform) and Shubham or Divya (client relationship leads, named by clients in reviews going back years). The same people from your first message to final delivery. No account handoffs, no rotating project managers. 152 professional recommendations back that consistency. 100% in house team. No outsourcing. We treat every project as if we are the ones maintaining it three years from now, because often we are. Some clients have stayed with us since 2012. If your project does not need custom development, we will tell you before you spend the money. Core expertise Frontend: React, Next.js, Vue, Angular, TypeScript Backend: Node.js, Express, NestJS, Laravel, FastAPI, Core PHP Mobile: React Native, Flutter Databases: PostgreSQL, MongoDB, MySQL, Supabase Cloud: AWS, Google Cloud, Docker AI and Automation: OpenAI, Claude and Gemini APIs, RAG pipelines, LangChain, AI agents CMS and Ecommerce: WordPress, Shopify, WooCommerce, Wix, Squarespace, BigCommerce, Magento, Joomla, OpenCart, Weebly, Webflow, GoDaddy Website Builder, headless CMS Payments, Billing and Subscriptions: Stripe, Stripe Connect, PayPal, Razorpay, WooPayments, NOWPayments, ccBill, LemonSqueezy, Peppol Voice and Telephony: VAPI for inbound and outbound call orchestration with function calling, Twilio for phone number provisioning CRM and Automation: HubSpot, Zapier Lead Generation and Landing Pages: HubSpot, Odoo, Webflow, GoHighLevel, Apify, Outscraper Email and Communication: Postmark, Nodemailer, Mailivery, Gmail API, Microsoft Graph API, Yahoo IMAP, SendGrid AI Assisted Development: Cursor, Replit, Bubble, WeWeb, Lovable, Bolt, Base44 Let's talk about what you are trying to build. less -
Hire Herculesz
Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces,...Principal / Head AI & Full-Stack Engineer with 25+ years of experience architecting, building, and scaling complex software systems across web, mobile, cloud, CMS/eCommerce, and AI-driven platforms. I specialize in delivering production-ready applications from concept to launch, including SaaS platforms, marketplaces, admin dashboards, mobile applications, automation systems, APIs, CMS websites, eCommerce stores, and intelligent AI-powered workflows. I bring a strong combination of full-stack engineering, cloud architecture, DevOps, CMS/eCommerce development, and AI/LLM expertise, with a proven ability to transform complex business requirements into scalable, secure, and user-focused digital products. My experience covers frontend architecture, backend engineering, database design, third-party integrations, real-time systems, performance optimization, CI/CD, observability, and production deployment. Technical Expertise: Frontend: React, Next.js, Vue.js, TypeScript, JavaScript, Tailwind CSS, Material UI, responsive UI/UX implementation Backend: Node.js, NestJS, Express.js, Laravel, PHP, Python, REST APIs, GraphQL, microservices, server-side architecture Mobile: Flutter, React Native, Expo, iOS, Android, cross-platform mobile app development CMS & eCommerce: WordPress, WooCommerce, Shopify, Wix, Webflow, custom theme development, plugin/app integrations, payment setup, product catalogs, checkout flows, landing pages, blog systems, and SEO-friendly website architecture Databases: PostgreSQL, MySQL, MongoDB, Firebase Firestore, Supabase, Redis, database design, optimization, migrations, and data modeling Cloud & DevOps: AWS, Google Cloud, Azure, DigitalOcean, Docker, Kubernetes, Nginx, CI/CD, GitHub Actions, server deployment, monitoring, logging, and observability AI & LLMs: OpenAI API, LangChain, RAG pipelines, AI copilots, conversational agents, semantic search, embeddings, prompt engineering, fine-tuning, Pinecone, pgvector, vector databases, and agentic workflows Payments & Integrations: Stripe, PayPal, Twilio, SendGrid, Firebase, Google APIs, third-party APIs, webhooks, CRM integrations, automation platforms, and API-based business workflows I have a strong track record of designing and delivering scalable SaaS platforms, marketplace systems, mobile apps, admin dashboards, CMS websites, eCommerce stores, automation tools, and AI-driven products that support real business operations. My work combines clean frontend experiences, secure backend systems, optimized databases, cloud-ready infrastructure, flexible CMS solutions, and practical AI innovation. As a hands-on technical leader, I am experienced in mentoring engineers, leading cross-functional teams, making architecture decisions, and aligning technical execution with business goals. I am passionate about building high-quality software that is scalable, maintainable, and ready for real-world users. less -
Hire Hubready
A US-based engineering team — in business since 2008, registered in South Florida. Clients bring us in when systems become too complex, too slow, or unreliable — or when an AI idea needs to become a real, production-ready product, not just a prototype. We don't just write code — we build systems that work in the...A US-based engineering team — in business since 2008, registered in South Florida. Clients bring us in when systems become too complex, too slow, or unreliable — or when an AI idea needs to become a real, production-ready product, not just a prototype. We don't just write code — we build systems that work in the real world. We're a senior Full-Stack & AI engineering team with deep experience designing, building, and scaling production-grade software across AI automation, SaaS platforms, data pipelines, and high-volume e-commerce. We bring both an engineering and a business mindset, so what we deliver is technically sound, maintainable, and ROI-driven. ✓ What we do best – AI & Automation • LLM integrations (OpenAI, RAG pipelines, embeddings, copilots) • Intelligent workflow automation and data processing • AI-powered internal tools and dashboards • Zapier, n8n, Selenium, Python, Beautiful Soup • Stock trading algorithms/bots for Schwab, E*TRADE, and more – Backend & Data Engineering • Custom APIs and event-driven architectures • PostgreSQL at scale (partitioning, optimization, analytics) • ETL pipelines across Shopify, Salesforce, ERP, and custom systems • Node.js, Python, TypeScript – Frontend Development & UX • Modern, responsive frontends built for real users • React, Next.js, and component-driven UI architecture • Data-heavy dashboards built for performance • Clean UI/UX that balances usability, speed, and clarity – Mobile App Development • Cross-platform apps for iOS & Android • React Native, Flutter, and modern mobile stacks • Secure API integration and real-time data sync • Built for performance, stability, and growth – Cloud, DevOps & Reliability • Docker / Podman, CI/CD pipelines, secure deployments • Observability, logging, and performance tuning • Systems designed to scale without constant maintenance ✓ How we work • Clear communication and structured milestones • Production-ready code — no shortcuts or fragile builds • Proactive technical guidance when we see risks or better paths • Long-term thinking: solutions that grow with your business Working with a US company since 2008 means accountability, clear English-language communication, and a team that's still here to support what we build. If you need a senior team that can own frontend, backend, data, mobile, and AI end-to-end — and deliver clean, scalable results — let's build it right. Message us with your project and we'll tell you honestly how we'd approach it. less -
Hire visionvivante
VISION TO REALITY Preferred Freelancer by Freelancer Vision Vivante is an agency in India dedicated to transforming ideas into scalable, high-performance platforms. With a strong foundation in strategy, design, and technology, we help businesses accelerate growth, simplify complexity, and thrive in the digital...VISION TO REALITY Preferred Freelancer by Freelancer Vision Vivante is an agency in India dedicated to transforming ideas into scalable, high-performance platforms. With a strong foundation in strategy, design, and technology, we help businesses accelerate growth, simplify complexity, and thrive in the digital age. ✅ End-to-End Services: -- Product Strategy & MVP Development -- Concept-to-Launch Solutions -- Product Roadmaps, User Flows & Wireframing -- Technical Architecture & Agile Team Assembly ✅ Custom Software Development: -- Full-Stack Web & Mobile Applications -- SaaS Platforms | Marketplaces | Internal Tools -- API Integrations, DevOps, Cloud Infrastructure ✅ Tech Stack Expertise: -- Frontend: React.js, Vue.js, Next.js -- Backend: Node.js, Laravel -- Mobile: Flutter, React Native -- Database: PostgreSQL, MySQL, MongoDB -- CMS: WordPress, Shopify, Magento, Prestashop, Custom CMS -- Infra: AWS, GCP, CI/CD, Serverless ✅ E-Commerce & Business Platforms: -- Shopify, WooCommerce, Magento -- Auction & Multi-Vendor Systems -- Payment Gateway Integration (incl. Stripe, CashApp, M-Pesa, Mada, HyperPay) ✅ Enterprise & Operational Systems: -- ERP, CRM & Warehouse Management -- Stock Control, Route Planning, Payroll, Ledgers -- Driver & Customer Apps with Live Tracking ✅ Industries Served: >> E-commerce | Fintech | Logistics | Travel | Legal | Education | Real Estate | Healthcare | Fitness | Marketplaces | Social Platforms | SaaS | Pickup and Delivery | POS (Point of Sale) Why Vision Vivante? ✅ Strategy-First Execution ✅ Cross-Platform Development Experts ✅ Agile Teams & Transparent Collaboration ✅ Deep Tech + Business Understanding ✅ Global Clients in 50+ Countries ✅ Fast Turnarounds, Scalable Codebases ✅ Dedicated PMs, Engineers & Designers ✅ Flexible Engagement Models Ready to Build? From digital products to complex systems, Vision Vivante turns your vision into a living, breathing platform. Work with a team that’s technical, strategic, and obsessed with your success. Let’s explore how we can collaborate. less -
Hire vasundhara19
We help startups and growing businesses build AI-powered SaaS platforms, mobile apps, and web applications, from MVP to scale, with a focus on speed, performance, and real business outcomes. With 13+ years of experience and 500+ successful projects delivered, we don’t just develop software, we build products that are...We help startups and growing businesses build AI-powered SaaS platforms, mobile apps, and web applications, from MVP to scale, with a focus on speed, performance, and real business outcomes. With 13+ years of experience and 500+ successful projects delivered, we don’t just develop software, we build products that are designed to grow, handle scale, and deliver measurable impact. 🔹 Proven Results ➜ 500+ applications delivered globally ➜ MVPs launched in 30–45 days ➜ Apps scaled to 100K+ users ➜ AI solutions reducing manual work by up to 40% ➜ 4.9★ rating across 170+ client reviews 🔹 What We Do Best SaaS & MVP Development ➜ MVP development (idea → launch) ➜ Multi-tenant SaaS platforms ➜ Subscription & billing systems ➜ Admin dashboards & analytics ➜ Scalable backend architecture Mobile & Web App Development ➜ Flutter apps (iOS & Android) ➜ React Native cross-platform apps ➜ High-performance web applications ➜ App deployment & optimization AI-Powered Solutions ➜ AI-integrated web & mobile apps ➜ Chatbots & AI assistants ➜ LLM-based solutions (RAG, automation) ➜ Intelligent workflows & automation 🔹 Tech Stack ➜ Frontend: React.js, Next.js, Angular, Vue.js ➜ Backend: Node.js, Python (Django), Laravel ➜ Mobile: Flutter, React Native, Swift, Kotlin ➜ Databases: PostgreSQL, MySQL, MongoDB ➜ Cloud: AWS, Docker, DigitalOcean ➜ AI: LLMs, RAG pipelines, automation tools 🔹 Why Clients Work With Us ➜ MVPs delivered in 30-60 days ➜ Built for scale from day one (no rebuild later) ➜ Focus on business outcomes, not just code ➜ Clean, maintainable, production-ready systems ➜ Clear communication & daily updates ➜ Long-term support & product growth 🔹 Industries We Serve ➜ SaaS & Startups ➜ FinTech & Healthcare ➜ E-commerce & Marketplaces ➜ Logistics & Transportation ➜ Education & Fitness ➜ AI-driven platforms 🔹 We Are a Great Fit If You: ➜ Want to launch your MVP quickly and correctly ➜ Need to scale an existing product ➜ Want to integrate AI into your business ➜ Care about long-term product quality 🔹 Not the Right Fit If: ➜ You are looking for the cheapest option ➜ You need quick, low-quality solutions ➜ Budget is your only decision factor 🔹 What You Can Expect ➜ Transparent communication & daily updates ➜ Strong ownership of your project ➜ On-time delivery with proper QA ➜ Scalable, future-ready architecture ➜ Ongoing support after launch 🔹 Let’s Build Something That Scales If you're looking to build: ➜ AI-powered SaaS platform ➜ Mobile app (Flutter / React Native) ➜ Web application ➜ Startup MVP Send us a message or invite us to your project. Let’s turn your idea into a scalable, successful product. less -
Hire johnnier3
Hi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack engineer. For 10+ years I've shipped web, mobile, and emerging tech for startups and Fortune 500 companies, on time and without surprises. What I build: - Pixel-perfect web and mobile apps (React, Next.js, React Native, Flutter) scoring 98-100 on...Hi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack engineer. For 10+ years I've shipped web, mobile, and emerging tech for startups and Fortune 500 companies, on time and without surprises. What I build: - Pixel-perfect web and mobile apps (React, Next.js, React Native, Flutter) scoring 98-100 on Lighthouse - Secure, scalable backends in Node.js/NestJS, Java/Spring Boot, .NET, and Python - High-performance Shopify and WordPress stores, custom apps, and headless setups - Blockchain dApps, smart contracts, and Web3 integrations - Automation bots, scrapers, and AI workflows - AWS infrastructure with 99.99%+ uptime and auto-scaling How I work: Daily updates, live demos, direct access (no middlemen). I act as your technical partner, flagging risks early and writing clean, documented code built to last. Clients come back because I ship faster, cleaner, and more reliably. Ready to start? Message me. I reply fast and can begin immediately. less -
Hire dreamerherry
✨ Welcome to Empiric Infotech: AI-Powered Mobile, Web & Full-Stack Development ✨ Most AI and software projects don’t fail because of ideas, they fail because of slow execution, weak architecture, and systems that don’t scale. With 12+ years of experience, a 5.0 rating across 67 client reviews, and a consistent...✨ Welcome to Empiric Infotech: AI-Powered Mobile, Web & Full-Stack Development ✨ Most AI and software projects don’t fail because of ideas, they fail because of slow execution, weak architecture, and systems that don’t scale. With 12+ years of experience, a 5.0 rating across 67 client reviews, and a consistent record of 100% on-time and 100% on-budget delivery, Empiric Infotech helps startups and enterprises turn ideas into reliable, scalable, production-grade AI and software products. We are a full-service AI, SaaS, and product engineering agency trusted across the US, UK, and Europe. As an Official FlutterFlow Expert Agency Partner, we also accelerate MVP and mobile product delivery, helping founders launch faster, validate sooner, and scale confidently. Our core competencies include: ✅ AI Development & Machine Learning: LLM-powered applications, AI agents, RAG pipelines, AI chatbots, and intelligent systems using OpenAI, Claude, Gemini, GPT-4, LangChain & LangGraph, enabling automation, decision intelligence, and conversational AI solutions. ✅ MVP & SaaS Development: Rapid MVP development and scalable SaaS platforms with multi-tenant architecture, subscription systems, and production-ready deployment using modern engineering practices. ✅ Full-Stack Web Development: High-performance web applications built with React, Next.js, Node.js, FastAPI, and scalable backend architectures integrated with PostgreSQL, Firebase, and AWS. ✅ Mobile App Development: Native-quality iOS and Android applications using Flutter & FlutterFlow, optimized for performance, UX, and rapid go-to-market product launches. ✅ API Integration & System Engineering: Seamless third-party and custom API integrations including Stripe payments, CRM systems, ERP platforms, WebRTC, and enterprise-grade services, ensuring smooth system interoperability. ✅ AI Workflow Automation: Intelligent business automation pipelines using n8n, Make, and Python, streamlining operations across marketing, sales, support, and internal workflows. ✅ Cloud & DevOps Infrastructure: Scalable deployments and cloud-native systems using AWS, Firebase, Docker, and CI/CD pipelines, ensuring reliability, security, and performance at scale. ✨Specialties: From a simple landing page to a complex AI-powered enterprise SaaS, we deliver scalable, production-grade systems with clean code and seamless handoff. 🏆Recent Work: • AI health diagnostics platform (HIPAA-compliant, multi-tenant) • Multi-channel AI conversation web app • PDF automation saving legal teams 20+ hrs/week • B2B e-commerce platform with AI-assisted procurement 📩 Have an AI, SaaS, or app idea? Share it with us and we’ll respond with a clear technical plan, realistic scope, and transparent pricing. less -
Hire teodorgeorge
I am an experienced Senior full stack Developer with a strong background in designing and developing dynamic web applications for over 7 years. I am skilled in JavaScript, PHP and various web frameworks such as React/Express/Laravel/Vue.js. And have proven ability to deliver high-quality, scalable solutions within...I am an experienced Senior full stack Developer with a strong background in designing and developing dynamic web applications for over 7 years. I am skilled in JavaScript, PHP and various web frameworks such as React/Express/Laravel/Vue.js. And have proven ability to deliver high-quality, scalable solutions within tight deadlines and excellent problem-solving and communication skills, with a passion. I am a dedicated team player who thrives in collaborative environments and continually seeks opportunities for professional growth. less -
Hire novaascend
When your business needs a digital solution built to perform not just to look good you need a team that's delivered for 600+ clients across three continents. NOVA ASCEND DYNAMICS is a Virginia-based software development agency ranked in the Top 3% of freelance talent globally. We specialize in custom web development,...When your business needs a digital solution built to perform not just to look good you need a team that's delivered for 600+ clients across three continents. NOVA ASCEND DYNAMICS is a Virginia-based software development agency ranked in the Top 3% of freelance talent globally. We specialize in custom web development, mobile app development, and enterprise software engineering for startups, SaaS companies, e-commerce brands, healthcare businesses, and Fortune-class enterprises. What we build: → Full stack web applications using React JS, Next.js, and Node.js → Shopify and WooCommerce stores engineered for conversion, not just aesthetics → Wix development and advanced Wix Velo solutions → SaaS platforms with scalable, multi-tenant architecture → Custom CRM development and ERP solutions that automate workflows and reduce overhead → React Native mobile apps for iOS and Android → UI/UX design systems grounded in user psychology and business metrics → API integration, business automation, and digital transformation consulting Why clients choose us: We don't recycle templates. Every engagement starts with a strategic discovery phase to understand your business model, your users, and your growth targets then we engineer a solution that earns its ROI. Our codebase is documented, maintainable, and built to scale. Our clients include early-stage startups that needed an MVP in 6 weeks and global brands that needed a platform overhaul in 6 months. We adapt to your timeline, not the other way around. Credentials: ✔ Top 3% Freelancer verified platform ranking ✔ 600+ projects delivered worldwide ✔ Virginia, USA English as primary business language ✔ Full-stack capability: frontend, backend, cloud, and mobile If you're evaluating development partners, let's talk. The consultation is free. The outcome isn't. less
