Payment Gateway Integration Engineers For Hire
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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 Tafsol
TAFSOL TECHNOLOGIES Group!! Aiming to deliver $10M+ Projects in 2026–2027 Proud Official Odoo Partner — delivering intelligent, enterprise-grade ERP & CRM solutions for global business excellence. 26th profound member of the OpenJS Foundation, among tech giants like Google, Microsoft, IBM, Uber, and...TAFSOL TECHNOLOGIES Group!! Aiming to deliver $10M+ Projects in 2026–2027 Proud Official Odoo Partner — delivering intelligent, enterprise-grade ERP & CRM solutions for global business excellence. 26th profound member of the OpenJS Foundation, among tech giants like Google, Microsoft, IBM, Uber, and Coinbase. Actively contributing to Official WordPress, the platform powering millions of websites. TAFSOL Technologies is an Award-Winning Digital Agency recognized by Clutch.co and Manifest as: 1. TOP B2B SERVICES by Clutch.co in Mobile App Development 2. MOST REVIEWED COMPANIES by The Manifest in Software Development Our team of skilled professionals has extensive experience in providing a wide range of digital services such as: ✅ AI Development & Integration to transform your business ✅ Mobile App Design and Development ✅ Vibe Coding & AI-Powered Development using Lovable, Claude Code, Bolt.new, Base44, Cursor, and other AI-assisted development tools for Rapid MVPs, SaaS Platforms, Web Apps, Mobile Apps, and Business Automation ✅ CRM Design and Development ✅ SAAS-based platform Design and Development ✅ ERP solutions Design and Development ✅ Website Design and Development ✅ Blockchain and smart contracts Development on Ethereum, BNB Smart Chain, Solana, Polygon, etc. ✅ Logo and Graphics Designing ✅ Linux recovery, database repair, and website rebuilds. Tech Stack We Are Proficient In: Frontend Development Frameworks ✅Reactjs ✅Nextjs ✅Vuejs ✅Angular ✅React Native ✅TypeScript ✅Tailwind CSS ✅Bootstrap ✅Storybookjs Backend Development Frameworks ✅Nodejs ✅Expressjs ✅Nestjs ✅Typescript ✅ASP.net ✅Core PHP ✅PHP Laravel ✅Python ✅Django ✅FastAPI ✅REST APIs ✅GraphQL ✅SOAP APIs Mobile Development ✅React Native ✅Flutter Databases ✅PostgreSQL ✅MongoDB ✅MySQL ✅SQL ✅Redis ✅Supabase ✅Neo4j (Graph Database) ✅Pinecone ✅Weaviate ✅FAISS ✅Chroma ✅pgvector Cloud and DevOps ✅AWS ✅Google Cloud ✅Microsoft Azure ✅Docker ✅Kubernetes ✅CI CD pipelines ✅Nginx AI and Automation ✅OpenAI APIs ✅RAG pipelines ✅Vector databases ✅LangChain ✅AI agents ✅OCR pipelines ✅Computer vision integrations CMS and Ecommerce ✅WordPress ✅Shopify ✅WooCommerce ✅Headless CMS ✅Sanity ✅Strapi Payments and Integrations ✅Stripe ✅PayPal ✅Affirm ✅Twilio ✅SendGrid ✅Google Maps API ✅Zapier What We Offer: ✅ 100% Client Satisfaction Rate ✅ 200+ Years of Accumulated Team Experience ✅ 1500+ Satisfied Clients ✅ 140+ In-house Resources ✅ Clients in 55+ Countries ✅ Quick Response Time < 2–3 Hours ✅ 5-Star Rated Profile Across All Platforms ✅ Dedicated Project Managers with Fluent English ✅ Support 5 Days/Week in EST, PST, MST, GMT Let’s start a chat here on Freelancer to discuss your project and share our ideas with you. Thanks for Visiting our Profile!! less -
Hire ranjika08
I have been offering expert website development, digital marketing, and business automation services for businesses in various niches for the last 12+ years. During these years, I have gained expertise in the following fields: 1. Website, Software & Design and Development: WordPress website development, redesign,...I have been offering expert website development, digital marketing, and business automation services for businesses in various niches for the last 12+ years. During these years, I have gained expertise in the following fields: 1. Website, Software & Design and Development: WordPress website development, redesign, and complete makeovers Shopify and WooCommerce ecommerce website design Wix and Squarespace website design Custom-coded websites (Laravel, React, Vue, Node, Angular, PHP) Responsive, mobile-friendly design Figma/XD to responsive web design Full website testing and QA Software Development (SaaS, ERP, CRM, HRM, POS and other softwares) Mobile Application Development (Android, iOS, Flutter, Kotlin, Java) Desktop Application Development 2. Website Support & Maintenance: Bug fixing, malware removal, and speed optimization Site migrations and checkout/webmail troubleshooting Monthly maintenance plans (updates, backups, uptime, security) 3. Search Engine Optimization (SEO): Expert SEO audits and technical SEO Increase website traffic and Google ranking Local SEO and Google Business Profile management Competitive keyword research Backlinking, content strategy, and blog outreach 4. Marketing & Growth: Paid campaigns across Google, Facebook, Instagram, LinkedIn, and TikTok Social media management Content writing for websites and blogs Qualified lead generation Platform setup and troubleshooting: Google Merchant Center, Google Ads, GA4, Tag Manager, Search Console, Meta Business Manager & Pixel, TikTok Ads/Shop, Bing/Microsoft Ads 5. Graphic Design & Branding: Logo design and brand identity UI/UX design for websites and apps Banner, brochure, and business card design Brand books and branding guidelines Corporate Identity, Design suite, Catalog Design Adobe Illustrator, Adobe Photoshop, Adobe Indesign 6. AI & Automation: Chatbot setup (rule-based, AI-powered, or hybrid) Chatbot integrations: payment links, CRM data submission, owner notifications AI automation for platforms like Notion, HubSpot, and CMS tools Full business process automation across multiple workflows Ongoing automation and chatbot maintenance My services are outcome driven and I love to keep myself updated with the latest tools and trends. No matter the current standing of your website or business, I will bring visible improvements to its design, performance, and growth — and with the right mix of marketing and automation, I will make sure your visitors turn into customers, faster. Use the "HIRE ME" button at the right to start the process of turning your dream into a reality. less -
Hire BuildWithDesign
BuildWithDesign BuildWithDesign
$25 USD / hour
Visual Alchemist & Digital Architect | 15+ Years🌟United StatesHey Visionary, Joy here, Currently based in Margate, Florida, but mentally everywhere your brand needs to be. While others were still figuring out their career paths, I was already orchestrating visual revolutions. My journey began in 2008 with a BFA in Graphic Design, but here's the twist, I didn't just design; I...Hey Visionary, Joy here, Currently based in Margate, Florida, but mentally everywhere your brand needs to be. While others were still figuring out their career paths, I was already orchestrating visual revolutions. My journey began in 2008 with a BFA in Graphic Design, but here's the twist, I didn't just design; I decoded the DNA of brands. Six years of pure creative exploration taught me that great design isn't about aesthetics, it's about creating emotional real estate in someone's mind. Then came the pivot that changed everything. I went back to university for Computer Science, not because I wanted to code, but because I wanted to speak the language of the future. While my classmates saw ones and zeros, I saw infinite possibilities to merge art with algorithms. ➣ What happens when you hire me? Your brand gets a PhD-level education in standing out. I don't just create logos, I architect visual identities that become cultural shorthand. Your website becomes a digital embassy that converts visitors into ambassadors. Whether it's WordPress, Shopify, Squarespace, or a custom solution, I build digital experiences that make algorithms fall in love with you. ➣ The Joy Difference: ● Symphonic Approach: Every pixel, every line of code plays in harmony with your brand's core frequency ● Cross-Continental Wisdom: My designs live everywhere from Miami startups to Mumbai enterprises ● Future-Proof Aesthetics: I design for the screen you're using tomorrow, not just today ● Zero Generic Zone: If it looks like a template, it's not leaving my studio I've watched brands transform from local players to global conversations. I've seen websites evolve from digital brochures to revenue-generating ecosystems. But my favorite moment? When clients realize their visual identity has become so powerful, their competitors start copying them. Ready to create something that makes your competition wonder how you leveled up overnight? Let's build digital alchemy together. P.S. I work with founders who understand that great design isn't an expense, it's the most profitable investment they'll ever make. 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 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 ePlatinum
🚀 Savo Technologies | Your End-to-End Digital Transformation Partner Technology is evolving rapidly, and businesses need more than just developers—they need a trusted technology partner. At Savo Technologies, we help startups, SMEs, and enterprises transform ideas into innovative digital products that drive growth,...🚀 Savo Technologies | Your End-to-End Digital Transformation Partner Technology is evolving rapidly, and businesses need more than just developers—they need a trusted technology partner. At Savo Technologies, we help startups, SMEs, and enterprises transform ideas into innovative digital products that drive growth, improve efficiency, and create lasting business value. With a multidisciplinary team of developers, designers, AI specialists, marketers, and branding experts, we deliver complete digital solutions under one roof. From strategy and design to development, deployment, and ongoing support, we're committed to building products that are scalable, secure, and future-ready. 💼 Our Core Services ✔ Artificial Intelligence & Automation ✔ Custom Web Development ✔ Mobile App Development (Android, iOS & Cross-Platform) ✔ UI/UX Design & Product Design ✔ SaaS Product Development ✔ CRM, ERP & Enterprise Solutions ✔ eCommerce & Marketplace Platforms ✔ API Development & Third-Party Integrations ✔ SEO, AEO & GEO Optimization ✔ Digital Marketing & Growth Strategy ✔ Branding, Logo Design & Corporate Identity ✔ Ongoing Maintenance & Technical Support ⚙️ Technologies We Work With React.js • Next.js • Node.js • Express.js • Laravel • PHP • Flutter • React Native • Android • iOS • Python • MongoDB • MySQL • Firebase • AWS • OpenAI • ChatGPT • Claude • Gemini • REST APIs • Git • Docker • Figma • Adobe Creative Suite 🚀 Our Approach Every successful project starts with understanding your business, goals, and users. We combine strategic thinking, modern technologies, and industry best practices to deliver solutions that create measurable results. ✅ Discovery & Business Consultation ✅ Planning & Solution Architecture ✅ UI/UX Design & Prototyping ✅ Agile Development ✅ Quality Assurance & Security Testing ✅ Deployment & Launch ✅ Continuous Support & Future Enhancements 🌍 Industries We Serve Healthcare • Finance • Real Estate • Retail • eCommerce • Education • Manufacturing • Logistics • Hospitality • Travel • AI • SaaS • Professional Services • Startups • Enterprise Businesses ⭐ Why Clients Choose Savo Technologies ✔ End-to-end digital solutions from a single trusted partner ✔ Experienced team across multiple technologies ✔ Business-focused approach with scalable architecture ✔ Clean code, modern design, and high-performance applications ✔ Transparent communication and milestone-based delivery ✔ Strong commitment to quality, security, and innovation ✔ Long-term support with continuous improvements ✔ Dedicated to building lasting client relationships 🚀 Ready to Start Your Project? Let's turn your vision into a powerful digital solution. We're here to deliver innovation, quality, and results. Contact us today, we'd love to work with you! less -
Hire vladang
I’m a Senior Software Engineer with 10+ years of experience building secure, scalable, and high-performance web, mobile, and AI-powered applications that solve real business problems and drive measurable results. I specialize in end-to-end development — from planning and architecture to deployment, optimization, and...I’m a Senior Software Engineer with 10+ years of experience building secure, scalable, and high-performance web, mobile, and AI-powered applications that solve real business problems and drive measurable results. I specialize in end-to-end development — from planning and architecture to deployment, optimization, and long-term support. Whether you need a modern website, SaaS platform, mobile app, AI-powered solution, eCommerce store, custom CMS, API integration, automation workflow, or enterprise application, I deliver reliable, scalable, and future-ready solutions tailored to your goals. My expertise includes: • Frontend: React.js, Next.js, Vue.js, Nuxt.js, Angular, TypeScript, JavaScript, Tailwind CSS, shadcn/ui, responsive UI/UX, performance optimization. • Backend: Node.js (Express, NestJS), Python (Django, Flask, FastAPI), PHP (Laravel), C# (.NET), REST APIs, GraphQL, microservices, authentication, real-time systems. • Mobile: React Native, Flutter, Native Android (Java/Kotlin). • WordPress & CMS: WordPress, WooCommerce, Elementor, Gutenberg, ACF, custom themes/plugins, Sanity, Strapi, Contentful, Payload CMS, Directus, Storyblok, Builder.io, and headless CMS architectures. • Shopify & eCommerce: Shopify, Shopify Plus, Liquid, Hydrogen/Oxygen, custom apps, WooCommerce, Stripe, PayPal, subscriptions, and conversion-focused stores. • AI & Automation: OpenAI GPT, Claude, LangChain, Llama, RAG, AI chatbots, intelligent workflows, automation, and custom AI solutions. • Cloud & DevOps: PostgreSQL, MySQL, MongoDB, Firebase, Supabase, Docker, CI/CD, AWS, Azure, GCP, Vercel, and scalable cloud infrastructure. I focus on building clean, maintainable, and business-focused solutions with strong communication, reliable delivery, and attention to detail. From startups and MVPs to enterprise systems and long-term product development, I help turn ideas into scalable, high-quality products. If you’re looking for an experienced expert who can handle everything from modern web platforms and mobile apps to AI integrations, WordPress, Shopify, CMS development, and complex custom solutions — let’s build something exceptional. less -
Hire flapjakc
MapleStack builds fast, reliable web and mobile applications end to end - from architecture through launch. What sets us apart: Full-stack range - 8+ years across SaaS platforms, e-commerce, and AI-integrated web apps. Core stack: WordPress, WooCommerce, Shopify, PrestaShop, Laravel, Node.js, React, and Next.js,...MapleStack builds fast, reliable web and mobile applications end to end - from architecture through launch. What sets us apart: Full-stack range - 8+ years across SaaS platforms, e-commerce, and AI-integrated web apps. Core stack: WordPress, WooCommerce, Shopify, PrestaShop, Laravel, Node.js, React, and Next.js, plus REST API integrations, payment gateways, headless CMS, and custom CRMs. Business-first approach - With a Bachelor of Commerce (Marketing) and a BSc in Psychology, we understand user behavior and business strategy, not just code. Certified professional - Google Ads Search Certified, Google Analytics Qualified, and Microsoft 365 SMB Masters Sales Professional. Speed and quality - We deliver quickly and aim to exceed expectations on every build, with clean, maintainable code. If it's technically possible, we can build it - from your first idea to a live product. less -
Hire isyncevolution
❤️ iSyncEvolution Pvt Ltd - Top 3 ➡️ https://www.freelancer.com/search/users ❤️ ➡️ Profile Info:- ✅ 20+ years experience in IT Consultant Services ✅ 90+ skilled professional resources ➡️ Services:- ✅ Website Development ✅ Android & IOS App Development ✅ Graphic Design ✅ SEO , SMO , SMM ✅ Content Writing ✅ Server...❤️ iSyncEvolution Pvt Ltd - Top 3 ➡️ https://www.freelancer.com/search/users ❤️ ➡️ Profile Info:- ✅ 20+ years experience in IT Consultant Services ✅ 90+ skilled professional resources ➡️ Services:- ✅ Website Development ✅ Android & IOS App Development ✅ Graphic Design ✅ SEO , SMO , SMM ✅ Content Writing ✅ Server Administrator ➡️ Expertise:- ✅ Website Development : Laravel , Shopify , Magento , React.js , Angular , Python , ROR ✅ Mobile App : Kotlin , Swift , ReactNative , Flutter ✅ Graphic Design : Layout Design , Logo , Banner , Flyer , Brochures , Adobe Photoshop , Adobe.xd , Figma ✅ Web Design : PSD to HTML Page , Mobile Responsive Page , HTML , CSS , Bootstrap ✅ SEO : On Page , Off Page , SEO , SEM , SMM , PPC ✅ Hosting : Domain , Hosting , Email , SSL ➡️ Statistic:- ✅ 100% Project Complete ✅ 130+ Reviews in quick time ✅ 5 / 5 Ratings in all reviews ➡️ Achievement:- ✅ 5 star ratings & reviews ✅ Top Rated Freelancer ✅ Verified Profile ➡️ Education:- ✅ Bachelorette Computer Science ➡️ You will get:- ✅ Quality Service ✅ Timely Delivery ✅ Regular Status Updates ✅ Effective Communication ✅ NDA securities ➡️ Please hire me. less
