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Experts in API Integration and Integration Architecture for complex business systems. When business systems must exchange data reliably, simple API connections are rarely enough. We design and build production-grade API integrations connecting ERP, CRM, e-commerce platforms, and internal systems — focusing on reliability, observability, and long-term maintainability. Our work centers on custom integrations that support real business operations, not fragile scripts or quick automation hacks. 🧩 What We Do 🔹 API Integration & System Connectivity Design and implementation of reliable API integrations between ERP, CRM, e-commerce, marketing, and internal systems using REST APIs, webhooks, and secure authentication. 🔹 Integration Architecture Design of robust integration architectures including data synchronization strategies, retry logic, monitoring, error handling, and long-term maintainability. 🔹 On-premise Integration Platforms Custom API integration hubs deployed on your infrastructure (Laravel / PHP), including scheduling, logging, monitoring, and full operational control. 🔹 API Development & Consulting End-to-end API development: REST API design, OAuth authentication, webhook processing, multi-system integration strategies, system audits, and integration consulting. 🔹 Data Synchronization Reliable data pipelines between ERP, CRM, analytics, and internal systems with validation, monitoring, and recovery mechanisms. ⚙️ Our Strengths ✅ Strong focus on API integration for complex business workflows (finance, e-commerce, logistics, marketing operations) ✅ Production reliability by default — logging, retries, monitoring, and alerts included ✅ Security-first architecture suitable for on-premise and private cloud deployments ✅ End-to-end ownership — from architecture and API development to deployment and long-term support 🧠 Tech Stack Languages & Frameworks: Laravel / PHP / Node.js / Python Integration Technologies: REST APIs, Webhooks, OAuth, event-driven integrations Platforms & APIs: HubSpot, QuickBooks Online, Xero, Shopify, Acumatica, BigCommerce, Airtable, Slack, Notion, Google Workspace Infrastructure: AWS, DigitalOcean, Docker, Linux 🌟 Why Clients Choose QPMSoft 💼 $400K+ earned on Upwork | 100% Job Success | 10+ years building integration systems 🤝 Clear communication, fast response times, and realistic expectations 🚀 Flexible engagement models — from focused API integrations to long-term integration platforms Whether you need API Integration, custom API Development, or reliable system integrations between ERP, CRM, and e-commerce platforms, we focus on building systems that are stable, maintainable, and production-ready.

✅ 50+ SaaS projects successfully completed, 14+ MVP done 2️⃣8️⃣ of them in the payments and fintech space - including PSP platforms, payment orchestration systems, hosted fields & checkout flows, and trading platforms for fintech clients. Hands-on integration experience with Stripe, Apple Pay, iDEAL, PayPal and other major payment gateways. 🏆 TOP RATED PLUS | In Top 3 Laravel Developer | Payment Systems Expert | AI-Powered SaaS Specialist | PHP Laravel Developer 💠 7+ Years Experience | Senior Architect specializing in scalable backend architecture and high-load PHP Laravel Developer ecosystems 💠 AI Strategist | Building AI-powered and AI-assisted workflows, integrating AI solutions for custom SaaS products and No-Code/Low-Code integrations 💠 Rapid MVP Delivery | From concept to production-ready launch in 4-6 weeks as a Full Stack Laravel Vue specialist 💠 Proven Track Record | 100% Job Success with 5-star feedback from enterprise and startup clients in the USA, Europe, and the UAE Hello to my future clients and collaborators! I'm Mike - a Senior Full Stack Laravel Vue Developer and Laravel Developer. As a Laravel consultant and Laravel expert specializing in AI-powered SaaS and Fintech, I build modern web applications combining powerful Laravel backend with clean Vue.js and React interfaces built with HTML5, CSS3, and Bootstrap. I also work with WordPress for content-driven platforms and Ruby on Rails for rapid application development. MY DEVELOPMENT JOURNEY Early in my career, I focused on mastering PHP, clean architecture, security and performance, and the Laravel ecosystem, including WordPress and Ruby on Rails projects. Today, as a PHP Laravel Developer, I lead complex projects using Laravel full stack, Vue, React, and Node-based APIs, delivering scalable and secure applications supporting real business growth. Whether it's a SaaS platform, admin panel, WordPress site, or integrating APIs-driven product, I work as a Laravel Developer who understands both business logic and technical scalability. All code is versioned with Git. WHAT I HELP WITH: 1️⃣. Laravel & Full Stack Web Development I'm a Full Stack Laravel Vue developer who builds everything from Laravel codebase to modern JavaScript interfaces, including WordPress themes and Ruby on Rails applications. As a PHP Laravel Developer and Laravel backend specialist, I specialize in: — Advanced Laravel development with Livewire, Filament, and Symfony — Frontend with Vue.js, React, Alpine.js, Tailwind CSS, Bootstrap, and CSS3 — WordPress custom themes, plugins, and CMS solutions — Ruby on Rails rapid application development — Clean architecture, security and performance-focused PHP — MySQL, PostgreSQL, MariaDB integration — Scalable backend architecture for long-term growth 2️⃣. RESTful & GraphQL API Development As a Laravel Developer and Laravel expert, I build robust backend API systems: — RESTful & GraphQL APIs with Laravel — Backend API and third-party services integrations for modern web applications — WebSockets for real-time Laravel platforms — Stripe integration, Firebase, Google Drive, integrating AI solutions via OpenAI API 3️⃣. SaaS Architecture As a Full Stack Laravel Vue developer, I design scalable and secure applications that scale: — Existing Laravel codebase modernization and extension — Multi-tenant architecture and multi-tenant SaaS dashboards — WordPress multisite and Ruby on Rails SaaS solutions — API-first architecture for React, Vue, and Node frontends 4️⃣. Performance & Code Quality As a Senior PHP Laravel Developer, I focus on: — Optimizing code for performance in Laravel and Ruby on Rails — MySQL and PostgreSQL database tuning — Frontend speed for React and Vue — WordPress performance optimization — Clean architecture, security and performance 5️⃣. Admin Panels & Back-Office Systems As a Laravel Developer, I build modern admin panels that help teams run operations smoothly with dashboards built with HTML5, CSS3, Bootstrap, and jQuery. I also deliver WordPress admin customizations and Ruby on Rails back-office solutions. I can help with: — Filament/Livewire admin panels with role-based access — Custom workflows, approvals, audit logs — PDF reports, analytics views, and operational dashboards 6️⃣. E-commerce, Payments & Subscription Systems If your business relies on payment gateway, subscription product, or checkout flows, I deliver as a Full Stack Laravel Vue expert who understands the full product lifecycle, including WordPress WooCommerce and Ruby on Rails e-commerce solutions: — Stripe integration, subscriptions, invoices, and webhooks in PHP Laravel Developer stack — Customer portals and secure checkout with HTML5 and CSS3 — Integrating APIs-first payment systems compatible with React and Vue Full Stack Specialist in Fintech, Payments, API Integration, Stripe, Payment integration, Payment Gateway, Wallets, API development, Checkout, Saas Fintech, Financial Services, Fintech Platform and Fintech SaaS MVP

🎯 I build apps that hold up when real users, real payments, and real traffic hit them. 🎯 12 years in software engineering, 9 years specialized in Bubble io, 150+ shipped projects — SaaS platforms, AI-powered apps, marketplaces, CRMs, and MVPs that made it past launch day, with 80% going on to raise investment. ⚒️ HOW I BUILD ✔️150+ products as a Bubble Full Stack Developer, Bubble Developer: Bubble, JavaScript, Java, PHP, Angular, MySQL, Responsive Design, custom plugin development. ✔️60+ AI systems as a Bubble AI Developer, No Code AI Developer: OpenAI GPT, Anthropic Claude, Gemini, RAG pipelines, AI agents, bubble ChatGPT integrations. ✔️40+ automation ecosystems as a Bubble Automation Developer, No Code Automation Engineer: n8n, Zapier, Make, Airtable, Zoho, Twilio, Stripe, Meta APIs — supporting $4M+ in client transaction volume. ✔️Engineering foundation: CS degree, Master's in Software Engineering, magento developer-level backend thinking applied as a Bubble No Code Developer. 🚚 WHERE I DELIVER ✔️As a Bubble Developer, Bubble io Developer — 150+ builds spanning Bubble MVP, Bubble SaaS Build, Bubble Marketplace, Bubble CRM Build, and Bubble Social Network projects generating $6M+ in combined client revenue. ✔️As a Bubble Full Stack Developer, No Code Full Stack Developer — database architecture, and workflow design inside Bubble, reducing dev costs by 30–50% vs. traditional stacks. ✔️As a Bubble MVP Developer, Investment-Ready MVP Builder — 80% of MVPs shipped went on to raise pre-seed or seed funding. ✔️As a Bubble AI Developer, AI Integration Developer — GPT, Claude, and Gemini integrations powering chatbots, RAG search, and AI agents inside live Bubble apps, lifting user retention by 22–30%. ✔️As a Bubble API Developer, No Code Integration Specialist — Stripe, Twilio, Meta, and custom third-party systems processing $4M+ in transactions across client platforms. ✔️As a Bubble Automation Developer, Workflow Automation Engineer — n8n, Zapier, and Make stacks handling lead capture, CRM routing, and internal ops automation, worth an estimated $500K+ in recovered labor cost. ✔️As an AI-Enhanced No Code Developer, Bubble Prototype Developer — using Lovable and modern AI tooling to accelerate Bubble development cycles by 40%, shortening time-to-revenue for clients. 🔥 ACHIEVEMENTS ✔️12 years as a software engineer, 9+ years as a Bubble Developer, Bubble io Developer, No Code Full Stack Developer, 150+ applications shipped from prototype to production. ✔️80% of MVPs built went on to raise investment — pre-seed to Series A — as a Bubble MVP Developer, Startup Bubble Developer trusted for fundable, demo-ready builds. ✔️$6.2M+ in client-side business impact, $1.4M+ direct project revenue, €780K paid MVP contracts, £18M annual business volume touched as a Bubble Full Stack Developer. ✔️30,000+ active users across bubble io web applications where backend architecture and API integrations cut load times by 35%+ as a Bubble Developer. ✔️60+ AI-powered Bubble apps built with OpenAI GPT, Anthropic Claude, and Gemini integrations as a Bubble AI Developer — chatbots, RAG pipelines, and autonomous AI agents driving $900K+ in automation-linked savings. ✔️40+ automation stacks delivered with n8n, Zapier, Make, Airtable, Zoho, and Twilio as a No Code Automation Developer, cutting manual workflow time by 50–75% and saving clients an estimated 12,000+ operational hours. ✔️35+ Bubble io SaaS Build and Bubble io Marketplace launches with Stripe and Meta API integrations, processing $4M+ in platform transaction volume as a Bubble No Code Developer, Bubble SaaS Developer. ✔️3–5 week average MVP to working prototype turnaround, 40% faster than industry standard, as a Bubble Prototype Developer, No Code Engineer. ✔️CS degree + Master's in Software Engineering — technical depth in JavaScript, Java, PHP, Angular, MySQL backing every build as a Bubble Full Stack Developer. ✔️99%+ delivery consistency across 25+ international clients in the US, UK, and Europe as a Bubble io Full Stack Developer, No Code Developer. 🏆 INDUSTRY IMPACT Startup MVPs, Fundable Prototypes, Pre-Seed to Series A builds — 80% investment-raise rate as a Bubble MVP Developer, Investor-Ready Bubble Developer. SaaS Platform, Internal Tools, Bubble io SaaS Build — 30,000+ users, $2.1M+ in ARR supported, 35%+ faster load times as a Bubble Full Stack Developer, SaaS Bubble Developer. B2B Marketplace, Bubble io Marketplace, Two-Sided Marketplace — thousands of listings, $4M+ GMV processed, 25%+ better lead-to-conversion as a Bubble Marketplace Developer, No Code Developer. AI-Powered Platforms, AI Agent Systems, RAG Chatbots — 60+ products, $900K+ in automation-driven cost savings as a Bubble AI Developer combining OpenAI, Claude, and Bubble backend logic. CRM Systems, Bubble io CRM Build, Workflow Automation — 50–75% less manual admin work, 12,000+ hours saved annually as a Bubble Automation Developer through n8n and Zapier automation.

I provide a Node.js Backend Developer team that ships production-grade SaaS, APIs and platforms. 11,000+ hours worked, 50+ Node.js Backend Developer projects delivered, 100% Job Success Score, Top Rated Plus. As CEO I scope and own every Node.js Backend Developer engagement we sign. I study the brief, run discovery with founders, match the right engineers and stay accountable for delivery. My team owns the code - I never touch it. So when a brief lands for a Backend Engineer, an API Developer or a full stack software engineer, I scope it and the team builds it. Why hire my team: - 20+ years of Node.js Backend Developer, Full Stack Developer and SaaS Developer delivery - 200+ Node.js Backend Developer and SaaS Developer projects shipped - Long-term clients on retainers (3 - 10+ years) Our Node.js Backend Developer team designs services, REST and GraphQL APIs, queues and event pipelines that hold up under real production load. A NestJS Developer on the team treats Node as a serious production runtime and owns the heavy backend modules. Typical engagements: multi-tenant SaaS APIs, real-time platforms, billing flows, data pipelines, AI-backed services. Stack: Node.js, NestJS, ExpressJS, TypeScript, PostgreSQL, Redis, Elasticsearch, AWS, GCP, Docker, Kubernetes. Our Full Stack Developer team owns systems end-to-end - one team handling Node.js services, React frontends, data models and infra. A React Node pairing is our default shape - a React Node frontend on a NestJS Developer backend, with a nextjs developer on SEO-critical pages. We replace fragmented setups where a website developer, web developer and front end specialist were stitched together. Adjacent angles I present daily: full stack developer saas for B2B platforms, python full stack developer pairings for data and AI, full stack developer ai integrations, full stack developer react teams for SaaS dashboards, full stack developer shopify extensions, full stack web developer rebuilds of legacy SPAs, full stack ai saas developer engagements where LLM features must ship at production standard. Our SaaS Developer team helps founders ship multi-tenant SaaS and B2B platforms. A SaaS Developer engagement covers auth and RBAC, Stripe billing, observability, anti-abuse and event tracking the saas marketing team can use. The team has shipped a webflow developer saas pairing, a b2b saas booking system developer engagement, a ui ux designer saas pipeline, a saas explainer video flow in onboarding and a saas sales console wired into the backend. On the API side a dedicated API Developer track owns contracts and versioning. A REST API Developer designs the REST API Developer surface - resources, pagination, idempotency, webhooks - and the API Developer keeps SDKs and docs honest. A Backend Engineer owns the data layer; a second Backend Engineer covers queues and workers so the API never blocks on jobs. Cross-language coverage. A python developer track owns scraping, ETL and AI workflows. python nodejs migrations land here when teams consolidate dual stacks. flutter node.js and vue.js node.js setups join the core when mobile or admin SPAs need a reactive layer. A react developer pairing handles SaaS dashboards on the API. A wordpress developer or shopify developer hand-off covers CMS migrations. A mobile app developer pairing extends the SaaS into iOS and Android. Clients hire me when they need: - a Node.js Backend Developer team that owns architecture, APIs and scaling - a back end developer node.js bench for high-traffic SaaS - a Full Stack Developer team replacing 3 - 5 contractors with one coherent system - a SaaS Developer team fluent in multi-tenancy, auth, billing and RBAC - an API Developer and Backend Engineer pair for a clean, versioned REST API Developer surface - a full stack software developer practice with CEO-level discipline on roadmaps - a website developer hand-off backed by the team Recent work my team shipped: - Cybersecurity SaaS. Node.js, NestJS, PostgreSQL, Redis on GCP + Kubernetes. 170M+ req/week, 500 RPS peaks, 1M+ MAU. - Device Verification SaaS. Single backend powering web, Telegram bot and Developer API. 4K+ DAU, 1M+ checks, 80%+ via API. - Clinic Enterprise platform. React, Next.js, Laravel, Node.js, Redis, AWS. REST API, queues, RBAC, 1C and lab integrations. MVP in 4 months for 500 patients/day, 500K records. - E-commerce Data Pipeline SaaS. 50M+ products, per-partner parsers, dedup. Cloud cost cut ~9x at sub-second search across 300 - 500K DAU. - Multi-currency Voting SaaS. Wallets, Stripe top-ups, real-time vote locking over WebSockets. 2M+ users in 10 countries, $2.5M+ revenue. Reliable SaaS comes from deliberate design - that's what my Node.js Backend Developer, Full Stack Developer and SaaS Developer team focuses on. Need a Node.js Backend Developer team, a Full Stack Developer team or a SaaS Developer partner that delivers on time and stays long-term - let's talk.

❗️Available for new projects❗️ I’m a Top Rated Full Stack Developer on Upwork with 100% Job Success, focused on React, Node.js, Next.js, TypeScript, SaaS platforms, admin dashboards, APIs, databases, integrations, and production-ready web and mobile products. As a Full Stack Developer, I help startups, product teams, clients like Rand McNally, Magna, Sharpen CX, HÖRMANN Intralogistics turn complex ideas into reliable software. I specialize in fleet management, logistics, location-based SaaS. I work with the Volpis team, a software development company with 9+ years of experience and 100+ completed projects across logistics, fleet, HealthTech, EdTech, marketplaces, SaaS, and enterprise tools. What I bring to your product as a Full Stack Developer: As a Full Stack Developer, I can own the product end to end: architecture, frontend, backend, database structure, API design, integrations, deployment, and long-term scaling. As a React Developer, I build web apps, SaaS dashboards, admin panels, customer portals, CRM systems, booking platforms, and data-heavy interfaces that are clean, fast, and easy to extend. As a Node.js Developer, I design backend systems with stable APIs, authentication, roles, permissions, real-time features, payment flows, notifications, background jobs, and third-party integrations. As a Backend Developer, I focus on business logic, database design, performance, security, data consistency, and maintainable architecture. As a SaaS Developer, I help build MVPs, internal tools, subscription platforms, marketplaces, dashboards, and scalable web applications from idea to production. Selected results from my development work: 100+ completed mobile and web projects Products used by thousands of active users Real-time GPS and location-based systems used in daily operations Mobile apps launched and supported on App Store and Google Play SaaS dashboards that replaced manual workflows Backend systems for maps, tracking, booking, payments, subscriptions, and notifications Enterprise experience where uptime, data consistency, and scalability matter My approach as a Full Stack Developer: Understand product goals, business logic, and technical constraints Choose architecture for current scope and future scaling Build frontend structure with reusable components and predictable state Design backend logic, APIs, database models, and integrations Keep performance, security, maintainability, and testing in mind Prepare the product for deployment, monitoring, release, and future iterations Tools and technologies: Frontend: React, Next.js, TypeScript, JavaScript, HTML, CSS, Tailwind CSS, responsive web design, component architecture, reusable UI components, state management, dashboards, admin panels, SaaS interfaces, customer portals, web apps, and performance-focused frontend development. Backend: Node.js, Express.js, NestJS, REST API, GraphQL API, WebSockets, authentication, authorization, roles, permissions, business logic, background jobs, notifications, payment systems, subscriptions, custom API development, API integration, and real-time functionality. Databases: PostgreSQL, MySQL, MongoDB, Redis, Prisma, relational database design, document-based data models, caching, indexing, data synchronization, reporting logic, and scalable data structure. Cloud and infrastructure: AWS, Heroku, Google Cloud, Firebase, Docker, CI/CD, deployment, server configuration, monitoring, app releases, production support, and performance optimization. Mobile and cross-platform: iOS, Android, Flutter, Kotlin Multiplatform, mobile backend integration, push notifications, offline-first behavior, background location, maps, GPS tracking, and shared business logic. Integrations: Stripe, Apple Pay, Payfort, Firebase, Google Maps, Mapbox, HERE, TomTom, analytics tools, CRM systems, email services, chat, payment gateways, and custom third-party APIs. Clients usually hire me as a Full Stack Developer, Full Stack Web Developer, React Developer, Node.js Developer, Backend Developer, Web App Developer, API Developer, SaaS Developer, or MERN Stack Developer when they need reliable product ownership. I’m useful when your product has complex logic, multiple user roles, dashboards, real-time data, maps, payments, subscriptions, booking flows, integrations, or backend-heavy features. Why hire me as your Full Stack Developer? 9+ years of product development experience through the Volpis team 100+ completed digital product projects Top Rated profile with 100% Job Success on Upwork Strong React, Node.js, Next.js, TypeScript, SaaS, API, and mobile backend experience Experience with logistics, fleet, healthcare, marketplaces, SaaS, and enterprise products Clear ownership and engineering decisions focused on long-term product quality If you’re looking for a Full Stack Developer who can build reliable software, improve existing systems, and turn complex requirements into a scalable product, send me a message or invite me to your project.

Senior Node.js Developer. Over 10 years building production Node.js, NestJS, and TypeScript backends end-to-end. Full-stack ownership across React, Angular, and the messy migrations between them. EdTech / healthcare: Ionic + web for education; HIPAA-oriented SaaS backend work. Mobile scale: backend optimization for a fitness product with 10M+ downloads and heavy transaction load. Angular: long-term products, migrations, enterprise UI, maintainable modules. Strong proof on large Angular codebases when that is the job. AI integration where it earns its keep: OpenAI / Gemini for document automation and workflow APIs. What I deliver: - Production Node.js + NestJS backends, TypeScript end-to-end - Express services, microservices architecture, REST and GraphQL APIs - Backend optimization at mobile-app scale (10M+ downloads case) - Angular front-ends and migrations when the project needs full-stack ownership - AI integration where it serves the product Tech stack: Node.js, NestJS, TypeScript, Express, Angular, React, MongoDB, PostgreSQL, REST/GraphQL, Firebase, Git. Senior Node.js Developer, Node.js Developer, NestJS Developer, Backend Developer, TypeScript Developer, Angular Developer, Full Stack Developer, Microservices Developer, Backend Architect.