API Integration Experts para contratar
Mostrando 613 resultados
Freelancers patrocinados
-
Contratar webbookstudio
We are Ukrainian based IT-company Webbook Studio that provides highly professional services in the IT-sphere for international business. WORKING TIME: 11:00 - 20:00 GMT+3 (by Kyiv) (Monday to Friday) PLEASE BE PATIENT, WE WILL ANSWER YOU! Quick facts at a glance: - Year Founded: 2008 - Number of Employees: 30 -...We are Ukrainian based IT-company Webbook Studio that provides highly professional services in the IT-sphere for international business. WORKING TIME: 11:00 - 20:00 GMT+3 (by Kyiv) (Monday to Friday) PLEASE BE PATIENT, WE WILL ANSWER YOU! Quick facts at a glance: - Year Founded: 2008 - Number of Employees: 30 - 11+ years on this platform - More than 500+ projects were done - 11 successfully completed certifications on freelancer We work with: - CMS: Wordpress, Shopify, Opencart, Magento, Drupal, Joomla, ModX - Mobile Development: iOS/Android, iPhone, React Native, React.js, Angular.js - From 'scratch' with core php - Php-frameworks: Yii/Yii2, Laravel, CodeIgniter - Front-end: JavaScript, jQuery, AJAX, HTML5, CSS3, Bootstrap - Javascript-frameworks - Design: Figma, Adobe Photoshop, Adobe Illustrator, Gimp We provide the next solutions for our clients: - Development of web-sites, portals, modules, themes - Development of Mobile Apps (iPhone/Android) - development of E-commerce - development of CRM- and ERP-systems - IaaS, SaaS and PaaS solutions - design of Brand Book, design of web-sites, 3d-design menos -
Contratar iosifpeterfi
CompTIA Security+ and Microsoft MCSE/MCSA/MCITP certified, with 15+ years of experience, 100+ delivered projects, and a 4.9 Freelancer rating across 101 reviews. I help businesses build, improve, and maintain software and infrastructure they can rely on. Clients usually come to me when they need someone who can take...CompTIA Security+ and Microsoft MCSE/MCSA/MCITP certified, with 15+ years of experience, 100+ delivered projects, and a 4.9 Freelancer rating across 101 reviews. I help businesses build, improve, and maintain software and infrastructure they can rely on. Clients usually come to me when they need someone who can take ownership—not just complete isolated technical tasks. I help launch new platforms, modernize existing systems, improve reliability and performance, automate operations, and solve problems that are slowing the business down. My focus is always the outcome: stable systems, smoother operations, less downtime, easier maintenance, and a setup that can grow with the business. I'm based in Germany and communicate fluently in English (C2), German (C1), and Romanian (native). I also operate my own hosting infrastructure, which can be useful for development, staging, testing, and deployment when a project needs it. You can expect clear communication, realistic commitments, and dependable follow-through. I'm also available after delivery for ongoing development, maintenance, monitoring, improvements, and long-term technical support. If you need someone experienced who can take responsibility for the technical side and stay involved long-term, I'd be glad to help. menos -
Contratar Hrolgar
I'm a backend engineer with a full-time role in the Norwegian financial sector, building production .NET systems where reliability and correctness aren't optional. I freelance on focused project work where the job is to solve a real problem and ship something that works. You get someone who reads the spec properly,...I'm a backend engineer with a full-time role in the Norwegian financial sector, building production .NET systems where reliability and correctness aren't optional. I freelance on focused project work where the job is to solve a real problem and ship something that works. You get someone who reads the spec properly, asks the right questions, and hands back clean code without needing to be managed. My background is enterprise software: C#/.NET, ASP.NET Core, Entity Framework, background services, and the kind of API and data work that has to survive real users and real money. I bring that same standard to freelance projects: clean architecture, sensible error handling, and no shortcuts that bite you in production. What I build: • APIs and integrations. REST API design, third-party platform integrations, OAuth, webhooks, payment and booking flows. If it needs to talk to another system reliably, that's my lane. • C#/.NET backends. ASP.NET Core services, EF Core, migrations, background jobs and scheduled workers. • Python backends and automation. FastAPI services, data pipelines, scrapers, and automation scripts. Practical Python that does a job, not a science project. • SaaS and web apps. Full-stack work with React front-ends on Python or .NET backends, including multi-tenant systems and property-management and channel-sync platforms with live third-party data. • AI integrations. Assistants and MCP servers that answer from your own database or documents instead of guessing, and AI steps inside workflows you already run, with every query logged. • Infrastructure. Docker, Ansible and OpenTofu, high-availability database clusters, CI/CD and monitoring, so the thing I build keeps running after handover. • Web automation and browser extensions. Chrome (Manifest V3) extensions and Playwright automation for sites and web apps you have access to. How I work: I scope honestly up front. If something's a bad idea, I'll tell you before you pay for it. I favour the simplest solution that solves the actual problem over the most impressive-looking one. Communication is clear and async, no daily standups required and no chasing me for updates. A good share of my clients here come back for another project. From my latest large project: "Helgi embraced every challenge and consistently delivered beyond our expectations." If you've got a backend, API, integration, or automation problem, send me the details. I'll tell you straight whether I'm the right fit, what it'll take, and how long. menos -
Contratar sptechnocrats
Shanti Infosoft (formerly Shanti Infotech) is a CMMI Level 5 software team that builds AI products, apps, and automation for growing companies across the US, UK, Europe, Australia, and the Middle East. Idea to production — web, mobile, and AI — shipped on time, with code you fully own. Over 12+ years and 600+...Shanti Infosoft (formerly Shanti Infotech) is a CMMI Level 5 software team that builds AI products, apps, and automation for growing companies across the US, UK, Europe, Australia, and the Middle East. Idea to production — web, mobile, and AI — shipped on time, with code you fully own. Over 12+ years and 600+ delivered projects, we've built our reputation on three things: code that holds up under real users, communication that never goes silent mid-project, and delivery that lands on the date we promised. WHAT WE BUILD • AI & Automation — LLM apps (Claude, OpenAI, Gemini), RAG pipelines, AI agents & chatbots with memory, document & workflow automation, AI-assisted internal tools • Web apps — React, Next.js, Node.js, Laravel, PHP, headless CMS • Mobile apps — Flutter, native iOS & Android • SaaS, CRM & ERP platforms; cloud, DevOps & migrations • UI/UX design & brand identity WHY CLIENTS CHOOSE US • CMMI Level 5 — the top ~1% of software teams for process maturity • Preferred Freelancer, 4.9★ across 650+ reviews, 99% job completion • A full team on every project — BA, PM, designers, DevOps & QA — not a lone coder • A dedicated project manager, so you always know status without chasing us • We flag risks early instead of going quiet — the #1 thing clients say they were burned by before • You own 100% of the code — no lock-in Industries: Healthcare, Fintech, E-commerce, Logistics, EV/Mobility, Education, SaaS We're the right fit if you want a team that thinks about your product, not just your ticket — one that tells you what to build with AI, and what not to. Tell us what you're building and we'll reply within a few hours. menos -
Contratar juanpablomacf
I transform complex business challenges into scalable AI solutions that deliver measurable results. With over a decade of experience in both full-stack development and AI implementation, I bridge the gap between ambitious ideas and production-ready systems. 🏆 Proven Impact Across Industries FinTech: Built trading...I transform complex business challenges into scalable AI solutions that deliver measurable results. With over a decade of experience in both full-stack development and AI implementation, I bridge the gap between ambitious ideas and production-ready systems. 🏆 Proven Impact Across Industries FinTech: Built trading dashboards processing 50,000+ daily transactions with real-time analytics MedTech: Developed AI diagnostic assistants that reduced analysis time by 65% LegalTech: Implemented RAG systems that cut legal research from hours to minutes SaaS: Scaled platforms from MVP to 100,000+ users with integrated AI capabilities 🔧 Technical Expertise AI & Machine Learning AI Agent Systems: Multi-step reasoning and workflow orchestration RAG Pipelines: LangChain, LlamaIndex, Pinecone, ChromaDB (95%+ retrieval accuracy) LLM Integrations: GPT-4, Claude 3, LLaMA fine-tuning and optimization Voice AI: Twilio integration and real-time call processing Full-Stack Development Frontend: React/Next.js, TypeScript Backend: Node.js, Python, FastAPI DevOps: AWS, Docker, Kubernetes, CI/CD pipelines Automation: n8n workflows, custom API integrations 🚀 Recent Deliverables • AI Customer Support: Reduced ticket volume by 75% with bots handling 15,000+ monthly conversations • Document Intelligence: Built legal document analysis that cut review time from 4 hours to 15 minutes • Trading Analytics: Delivered real-time dashboards with 99.9% uptime for financial clients • Workflow Automation: Saved 200+ manual hours monthly through n8n-powered processes 🎯 My Approach Strategy & Planning Technical feasibility analysis and ROI-focused project scoping Scalable architecture design for long-term growth Execution & Delivery AI-enhanced development using Cursor and Copilot Agile methodology with transparent weekly progress updates Comprehensive testing and quality assurance Production Excellence Robust monitoring, logging, and error handling Performance optimization and thorough documentation 📈 Why Choose Senior Expertise? I architect systems that scale, implementing proper error handling, security protocols, and maintainable codebases. My clients avoid technical debt while accelerating their AI roadmap with production-ready solutions. I'm available for full-time engagements and ready to discuss how I can help bring your AI vision to life. menos -
Contratar Herculesz
PHP, Desarrollo Web, Desarrollo de Aplicaciones, Desarrollo de apps móviles, Arquitectura de softwarePrincipal / 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. menos -
Contratar vasundhara19
📌13+ Years Experience • 4.9★ Rating • 179 Freelancer Reviews • Certified Developers Vasundhara Solutions Lab LLP 🚀 builds AI-powered applications, mobile apps, SaaS platforms, full-stack web applications, APIs, and scalable custom software. Our expertise includes AI Development, Generative AI, LLMs, RAG, AI Agents,...📌13+ Years Experience • 4.9★ Rating • 179 Freelancer Reviews • Certified Developers Vasundhara Solutions Lab LLP 🚀 builds AI-powered applications, mobile apps, SaaS platforms, full-stack web applications, APIs, and scalable custom software. Our expertise includes AI Development, Generative AI, LLMs, RAG, AI Agents, AI Chatbots, AI Assistants, Vector Search, OCR, Computer Vision, and AI workflow automation. For Mobile App Development, we work with Flutter, React Native, Android, Kotlin, iOS, Swift, SwiftUI, Firebase, APIs, payments, subscriptions, GPS, chat, live streaming, and audio/video calling. For Full Stack & SaaS Development, we work with React.js, Next.js, TypeScript, Node.js, Python, Django, PHP, Laravel, PostgreSQL, MongoDB, MySQL, Firebase, Supabase, Redis, REST APIs, and cloud infrastructure. We can help with: ✅ AI Applications & AI Integration ✅ AI Agents, LLM & RAG Solutions ✅ Flutter & React Native Apps ✅ Native Android & iOS Development ✅ Full Stack Web Development ✅ SaaS Platforms & MVP Development ✅ React.js & Next.js Applications ✅ Node.js & Python Backend Development ✅ REST APIs & Third-Party Integrations ✅ Marketplace, CRM & Booking Platforms ✅ E-commerce & Subscription Applications ✅ Admin Panels & Business Dashboards ✅ Existing App Upgrades & Maintenance ✅ UI/UX, QA, Deployment & Scaling Why work with us? 1️⃣ 13+ years of software development experience 2️⃣ 177 Freelancer reviews with a 4.9★ rating 3️⃣ Certified Android & iPhone Development expertise 4️⃣ Dedicated AI, Mobile, Web, Backend, UI/UX & QA teams 5️⃣ Experience from MVP development to scalable production platforms 6️⃣ Long-term maintenance, optimization and scaling support 🕹️Our game development studio was featured in Google’s #WeArePlay program in 2023. 🏢 Industries: AI | SaaS | Healthcare | Education | Fitness | Marketplace | Booking | CRM | E-commerce | Social Networking | Streaming | Automation Have an AI, Mobile App, Full Stack, SaaS or MVP project? Share your requirements and let’s discuss the right technology and development approach 🎯 menos -
Contratar AdeelAslam4
We're BrainX, a Pakistan-based software team that builds and maintains mobile apps people actually use. Baritastic, a HIPAA-compliant bariatric care app we've maintained for over 5 years, has 500,000+ installs and a 4.6 rating on Google Play, with native iOS and Android builds, wearable integrations across Fitbit,...We're BrainX, a Pakistan-based software team that builds and maintains mobile apps people actually use. Baritastic, a HIPAA-compliant bariatric care app we've maintained for over 5 years, has 500,000+ installs and a 4.6 rating on Google Play, with native iOS and Android builds, wearable integrations across Fitbit, Garmin, and Apple HealthKit, and a provider dashboard for care teams. That's not the only one live today: • Ponder, an AI voice-therapy app on both app stores • CaloTracker, an AI-powered calorie and nutrition tracker built in Flutter, with photo and barcode scanning and Apple Health sync • LUMP, a cross-platform Flutter social meetup app with a Node.js and MongoDB backend, live on both stores • RollStrong, a Flutter fitness app with a working subscription model, live on both stores • SwapDotz, an app using native NFC integration to verify and trade physical collectibles Clients back this with real budgets: one mobile app project came in at over $17,000, another at over $4,000, both five-star reviews specifically praising our delivery and communication. AI development is core to what we build into mobile • MathAMentor, an AI maths tutor students talk to through a live avatar • Call Sling, an AI agent that answers and routes inbound calls • DocuMed, AI medical transcription with mobile, web, and offline support • RAG assistants, document and workflow automation, and support bots running across websites and WhatsApp for live clients Also part of what we do: Web Development • Next.js, React, Node.js, Python, and Laravel Shopify & Custom eCommerce • Custom storefronts and eCommerce builds UX/UI Design • Full product design from concept through interface Tell us what you're building and we'll walk you through how we'd approach your mobile app. menos -
Contratar visionvivante
AI-Powered SaaS, Web & Mobile Apps | Full-Stack Agency | 50+ Countries Vision Vivante is an India-based agency that turns ideas into scalable, high-performance SaaS platforms and AI-powered products. With a strong foundation in strategy, design, and engineering, we help businesses launch faster, simplify complexity,...AI-Powered SaaS, Web & Mobile Apps | Full-Stack Agency | 50+ Countries Vision Vivante is an India-based agency that turns ideas into scalable, high-performance SaaS platforms and AI-powered products. With a strong foundation in strategy, design, and engineering, we help businesses launch faster, simplify complexity, and grow with confidence. ✅ End-to-End Product Services Product strategy and MVP development Concept-to-launch delivery Roadmaps, user flows, and wireframing Technical architecture and agile team assembly ✅ SaaS & Custom Software Development Multi-tenant SaaS platforms with subscription billing Full-stack web and mobile applications Marketplaces and internal business tools API integrations, DevOps, and cloud infrastructure ✅ AI-Powered Solutions AI chatbots and virtual assistants AI voice agents and automated calling workflows Document analysis, data extraction, and smart search LLM integrations (OpenAI, Claude, and other APIs) built into your product AI-driven recommendations, scoring, and workflow automation ✅ Tech Stack Expertise Frontend: React.js, Vue.js, Next.js Backend: Node.js, Laravel, Python 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 and multi-vendor systems Payment gateway integration (Stripe, CashApp, M-Pesa, Mada, HyperPay, and more) ✅ Enterprise & Operational Systems ERP, CRM, and warehouse management Stock control, route planning, payroll, and ledgers Driver and customer apps with live tracking ✅ Industries Served E-commerce • Fintech • Logistics • Travel • Legal • Education • Real Estate • Healthcare • Fitness • Marketplaces • Social Platforms • SaaS • Pickup & Delivery • POS Why Vision Vivante? ✅ Strategy-first execution ✅ Cross-platform development experts ✅ Practical AI integration that solves real business problems ✅ Agile teams and transparent collaboration ✅ Deep technical and business understanding ✅ Global clients in 50+ countries ✅ Fast turnarounds and scalable, maintainable codebases ✅ Dedicated PMs, engineers, and designers ✅ Flexible engagement models Ready to Build? From SaaS platforms to AI-powered products and complex enterprise systems, Vision Vivante turns your vision into a living, working product. Work with a team that is technical, strategic, and invested in your success. Send us a message or invite us to your job, and let's explore how we can build it together menos -
Contratar mojjammil
I build and ship full-stack applications that work in production—not just prototypes. My core stack is React, Next.js, Node.js, and PostgreSQL. I develop complete systems including backend APIs, frontend interfaces, mobile apps (React Native), and deployment pipelines using Docker and Amazon Web Services. I’ve...I build and ship full-stack applications that work in production—not just prototypes. My core stack is React, Next.js, Node.js, and PostgreSQL. I develop complete systems including backend APIs, frontend interfaces, mobile apps (React Native), and deployment pipelines using Docker and Amazon Web Services. I’ve worked on SaaS products, dashboards, and eCommerce platforms with real users, integrating payments (Stripe), authentication, and third-party APIs. I focus on performance, scalability, and clean code so your product doesn’t break as it grows. No hand-holding needed - I can take your idea from concept to deployed product. menos
