FinTech, Marketplace and SaaS developer. 19 years. $10M+ earned on Upwork via Ronas IT — 1,829 jobs, 100% Job Success Score, Top Rated. I lead a remote team. I'm hands-on on every FinTech build - solution architecture, scope, and release sign-off. Cases: - US neobank - 7-microservice core, Bond + Persona + Sardine + Plaid, SOC 2 path passed on our side - EU neobank - 6-month MVP under PSD2 / AMLD / GDPR, Solaris BaaS + Trulioo KYC - AU travel payments - Stripe + 3DS2 + PayTo / PayID + FingerprintJS Pro, 10 weeks kickoff-to-launch - Docky - Malta yacht-berth marketplace on Stripe SetupIntent + Identity - Hamperapp Miami - on-demand marketplace - Lainappi Finland - P2P rental marketplace on Stripe Connect - UAE marketplace - Arabic RTL + English LTR with OpenAI shopping assistant - $130K B2B SaaS - real-time project management dashboard adopted by 100+ teams - 8-year forex / social-trading platform - real-time trading dashboard - KYC redesign for Digital Finance International - review collapsed from hours to ~1 minute - 14-year FinTech engagement with AA Global Group (London) Stack: - Backend - Node.js, Laravel, Django, PHP, Python, Express, NestJS, FastAPI - Frontend - React, Next.js, TypeScript, Tailwind, REST API, GraphQL - Mobile - React Native, iOS, Android, Expo, EAS, Firebase - Data - PostgreSQL, MongoDB, Redis, Elasticsearch, Supabase - Cloud - AWS, GCP, Vercel, Docker, Kubernetes, Terraform - Architecture - Microservices, Multi-tenant SaaS, Real-time, Cross-platform mobile - Payments - Stripe, Stripe Connect, Plaid, 3DS2 - AI - OpenAI, Generative AI, AI Agents, RAG, LangChain - Compliance shipped - PSD2, AMLD, GDPR, PCI DSS, SOC 2 path, HIPAA, ISO 27001 Ronas IT - 50-70 remote specialists, Estonian entity in Tallinn, Google Cloud Partner, Awwwards Honorable Mention 2024. I'm CEO and co-founder since 2007. Same engineers scope and ship your build - no handoff from sales to delivery. How I work - discovery sprint, architecture + threat model, MVP, audit readiness. Engaged from $5K prototype to $300K neobank build. Send the regulator letter, the audit finding, the integration spec, or just a 3-line problem statement.

I help startups and businesses build SaaS products, automate workflows, integrate third-party systems, and launch scalable software platforms. 🏆 Top Rated Plus • $200K+ Earned • 180+ Projects Completed • 15+ Years Experience What I can help you build: ✅ SaaS Platforms & Multi-Tenant Applications ✅ AI-Powered Features & OpenAI Integrations ✅ CRM, ERP & Business Management Systems ✅ API Integrations & Workflow Automation ✅ Custom Dashboards & Admin Portals ✅ Marketplace & Platform Development ✅ Subscription & Billing Systems ✅ Cloud-Based Web Applications My typical clients hire me when they need more than just a developer—they need someone who can understand business requirements, design scalable architecture, make technical decisions, and deliver production-ready software. Technical Expertise: • React, Next.js, TypeScript, Vue • Laravel, PHP, Node.js, NestJS • PostgreSQL, MySQL, MongoDB • REST APIs, GraphQL, Webhooks • OpenAI, Claude & AI Integrations • AWS, Docker, CI/CD Over the years I've built SaaS products, marketplaces, automation systems, customer portals, reporting dashboards, payment integrations, and enterprise business applications. Whether you're launching a new product, modernizing an existing platform, integrating third-party systems, or scaling a growing SaaS business, I can help turn requirements into reliable software that is secure, scalable, and maintainable. Let's discuss your project and create a solution that supports your business growth. 𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬 SaaS Platforms • AI-Powered Applications • API Integrations • Business Automation • CRM & ERP Systems • Custom Web Applications • Marketplace Platforms • Multi-Tenant SaaS • Workflow Automation • React.js • Next.js • Node.js • Laravel • PHP • TypeScript • JavaScript • REST APIs • OpenAI API • AWS • PostgreSQL • MySQL • MongoDB • System Architecture • Cloud Infrastructure • Full Stack Development

I build production-ready SaaS applications on Bubble for founders and businesses who need to move fast without cutting corners. With over 5000+ hours delivered on Upwork, Bubble Certified status, and a 97% Job Success Score, I have helped clients across legal tech, wellness, logistics, e-commerce, and AI tooling go from concept to live product. What I build: AI-integrated SaaS platforms, two-sided marketplaces, client portals, internal tools, booking and scheduling systems, and MVP applications ready for investment or user acquisition. My technical stack goes beyond Bubble. I work with Supabase for scalable databases, FlutterFlow for mobile applications, OpenAI and RAG pipelines for AI features, Stripe for payments, and custom API integrations across the board. I have shipped real products used by real users across industries including construction law, wellness coaching, labour hire, golf services, pre-planning, and generative AI tooling. What you get working with me: clear scope definition from day one, proactive communication throughout the project, and a developer who treats your deadline as seriously as you do. I do not do cookie-cutter builds. Every project is scoped, architected, and delivered with the specific business goal in mind, whether that is launching an MVP to attract your first 100 users or scaling an existing platform to handle thousands. If you are building a SaaS product, marketplace, or AI-powered application and need a partner who has shipped products like yours before, send me a message describing what you are working on.

Hi there, I'm the CEO of a company specializing in web and mobile development, UI/UX design, ERP and CRM systems, and Property Management Systems software development. Our company has been helping businesses of all sizes transform their digital presence and streamline their operations for over a decade. We are a team of highly skilled developers, designers, and project managers who are passionate about delivering exceptional software solutions to our clients. Our goal is to create software that not only meets the needs of our clients but exceeds their expectations in terms of usability, functionality, and design. We take a user-centric approach to our work, which means that we prioritize the needs of the end users when designing and developing software. Our team of UI/UX designers works closely with our clients to understand their brand and user requirements and then create designs that are visually stunning and easy to navigate. Our ERP and CRM systems expertise has helped our clients streamline their operations and manage their customer relationships more effectively. In addition, we have developed Property Management software that has helped real estate businesses manage their properties more efficiently. Our software is designed to be easy to use and provides real-time information about property occupancy, maintenance requests, and financial reporting. We are dedicated to providing our clients with exceptional software solutions to help them achieve their business goals. We take pride in our work and are committed to delivering projects on time and within budget. What we do: ✔️ ERP ✔️ CRM ✔️ SaaS ✔️ Property Management System ✔️ Construction Management platforms ✔️ Logistics solutions, Fleet and Freight Management Software ✔️ B2B / B2C Marketplaces ✔️ HealthTech solutions Let's get things done together!

You’ve found someone who can take ownership of your AI, SaaS or full-stack product from architecture to deployment making the right technical decisions & build system that scale to 𝐦𝐢𝐥𝐥𝐢𝐨𝐧𝐬 𝐢𝐧 𝐫𝐞𝐯𝐞𝐧𝐮𝐞. 👉 Hit "Invite to Job” - discuss your solution 🎖 Top 3% on Upwork · 100% Job Success 💼 Magisch Maastricht Vrijthof · Netherlands · €30M+ revenue My work sits between AI engineering and full-stack product development. That means you get the AI layer, backend logic, frontend experience, database structure, integrations, and deployment — not just a quick demo that breaks when real users start using it. ───────────────────────────────────── 𝐖𝐡𝐚𝐭 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐒𝐚𝐲: ───────────────────────────────────── ➞ Abdullah was excellent to work with as an AI Engineer. He played a key role in building our AI-powered SaaS platform. Highly recommended for SaaS, automation, full-stack, and AI projects. ➞ He delivered excellent SAAS development and has been proactive all the way, sharing new ideas and solutions to elevate the value of the project. ➞ Working with Abdullah was an absolute pleasure! He developed a fantastic full-stack application for us, integrating an AI chatbot that exceeded our expectations. ───────────────────────────────────── 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝: ───────────────────────────────────── 𝐀𝐈 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐬 -- AI chatbots, assistants, RAG systems, AI agents -- OpenAI, LLMs, NLP, ML, Python, automation 𝐒𝐚𝐚𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 -- SaaS MVPs, multi-tenant apps, dashboards -- Subscriptions, payments, user roles, admin panels 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐀𝐩𝐩𝐬 -- React, Next.js, Node.js, NestJS, Python -- APIs, databases, WebSockets, real-time workflows 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 -- CRMs, webhooks, Google APIs, Slack, third-party tools -- Workflow automation, data processing, API integrations 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 𝐀𝐩𝐩𝐬 -- Electron apps for Windows, macOS, and Linux -- Offline-first workflows, POS systems, business tools ───────────────────────────────────── 𝐁𝐢𝐠𝐠𝐞𝐬𝐭 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬: ───────────────────────────────────── ➞ Multi-Tenant POS SaaS — Deployed across 100+ locations, processed millions of transactions, contributing to $30M+ revenue. ➞ Advertising AI SaaS Platform — Built with Python, React & Node.js for 1,000+ advertisers, generating 50K+ bookings, increasing vendor growth by 40%. ➞ Education AI SaaS Platform — Python, React & Node.js serving 120+ institutions and 10K+ users with scalable backend systems and intelligent data processing, automation workflows, and AI-ready architecture. ───────────────────────────────────── 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: ───────────────────────────────────── 𝐀𝐈, 𝐌𝐋 & 𝐏𝐲𝐭𝐡𝐨𝐧 -- Python, Machine Learning, Data Science, NLP, OpenAI, LLMs, RAG, AI Agents, AI Chatbots, AI Assistants, AI Automation, vector databases, embeddings, prompt engineering, API-based AI systems, intelligent data processing 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 -- React.js, Next.js, JavaScript, TypeScript, Redux, Tailwind CSS, Material UI, responsive UI, dashboards, admin panels, customer portals 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 -- Node.js, Express.js, NestJS, REST APIs, GraphQL, Python APIs, authentication, authorization, business logic, real-time workflows, scalable backend architecture 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 -- PostgreSQL, MongoDB, Redis, Firebase, Supabase, database design, query optimization, multi-tenant data structure 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 -- Electron, cross-platform apps, iOS apps, Android apps, desktop applications, offline-first workflows 𝐒𝐚𝐚𝐒, 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 -- Stripe, PayPal, subscriptions, webhooks, Twilio, WebSockets, OAuth, CRMs, Google APIs, Slack, automation tools, third-party API integrations 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 -- AWS, Docker, CI/CD, deployment, cloud infrastructure, performance optimization, monitoring, scalable production setup If you need an AI product, SaaS platform, web app, chatbot, RAG assistant, automation workflow, dashboard, or existing system improved, send me a message and I’ll help you figure out the best way to build it. Keywords to find me: Full-Stack Development, SaaS Development, AI Development, React, Node.js, Python, AI Chatbot, Large Language Model, Generative AI, AI App Development, AI Agent Development, AI Model Integration, API Integration, Web Application Development, Next.js, NestJS, TypeScript, JavaScript, Machine Learning, Electron

Full Stack Developer SaaS focused on turning complex product ideas into stable, scalable platforms Recent Client Results: ✔️ launch SaaS products in 6-10 weeks ✔️ improve API performance by 30-45% ✔️ reduce manual operations by 40-60% ✔️ build platforms ready to support 10k+ users. As a Full Stack Developer React Node and SaaS Developer I help startups and established businesses. I bring 16+ years in software development, 225+ delivered products and 9+ years of hands-on Node.js experience. As a Certified Full Stack Developer React Node and Web Full Stack React Developer, I focus on business outcomes first: launching SaaS MVPs 30–40% faster, improving release stability, building scalable architecture, and reducing costly rework as products grow. My experience as a Full Stack React JS specialist allows me to deliver production-ready solutions with React.js, Node.js, Next.js, Nest.js, and modern JavaScript Developer workflows, supporting platforms with 10k+ users, 99.9% uptime targets, and integrations across APIs, payments, CRMs, and AI tools. As a Backend Developer Nest.js with strong TypeScript Backend Development skills, I design maintainable server-side application architecture, secure APIs, and clean business logic for SaaS, internal tools, marketplaces, and custom platforms. As a Node js Developer, Nodejs Developer, and Nodejs Backend Developer, I use Node.js to simplify complex workflows, improve backend stability by 30–45%, and support products built on both SQL and NoSQL databases. My Typescript Nodejs background helps teams move 25–35% faster with modular services, readable code, and easier long-term maintenance. I also build advanced integrations with Stripe, third-party services, and node.js graphql solutions for scalable product ecosystems, including platforms with 10k+ users, 99.9% uptime targets, and 20+ API/payment/CRM integrations. I’m a Full Stack Developer React Node with deep experience in scalable web application development across SaaS platforms, CRM systems, dashboards, admin panels, internal tools, and custom business products. My React js Node js work is focused on shipping fast, usable, and maintainable solutions that support real business goals. As a React Developer and Full Stack Developer React Node, I build responsive, scalable interfaces using React, JavaScript, Node.js, and Next.js. My work as a React JS Developer and React JS / Next.js / NestJS Developer focuses on creating fast, user-friendly products that improve usability, support growth, and reduce friction across the customer journey. I also work as a React Native Developer ( Full Stack Developer SaaS ) when a product needs mobile-first extensions or companion app experiences aligned with the main platform. As a Full stack AI SaaS developer, I help businesses with scalable SaaS Projects, Edtech Products with dashboards and payment flows, advanced e-commerce solution beyond CMS limits, Corporate Websites with strong backend logic, marketplace platforms with secure transactions, Authentication and Security with JWT-based access control, API Development and Integration, GraphDB, REST API, node.js graphql, CRM Development, Payment Gateways Stripe Paypal Liqpay, Database Management & Optimization and ongoing Deployment & Maintenance. I also bring practical experience with PHP, Laravel, Python, Vue.js, Angular, React, Node.js, JavaScript, MySQL, WordPress, Tailwind CSS, Bootstrap, HTML, HTML5, CSS and CSS 3, TypeScript, Redux, jQuery, Responsive Design, Web Design, PHP, MongoDB, Next.js My work covers Full-Stack Development for modern Web Application products, including custom API development and API Integration, while Git supports a clean and reliable delivery workflow. I also bring strong Web Design awareness, helping create interfaces that are not only functional, but also responsive, polished and user-friendly. 👉If you need a Full Stack Web Developer who can launch faster, improve performance, stabilize architecture, and build for long-term growth - let’s discuss your product.

I help founders turn ideas into production-ready SaaS products and AI applications that can scale. Top Rated Plus freelancer with $400k+ earned, 107 completed projects, and 11,000+ hours delivering software for startups, SMBs, and enterprise clients. Over the last 12+ years, I've helped businesses launch MVPs, modernize legacy systems, build AI-powered products, and scale SaaS platforms used by thousands of users. What I build: ✅ AI-Powered SaaS Applications ✅ React & Next.js Frontends ✅ FastAPI, Node.js & Spring Boot Backends ✅ OpenAI, Claude & AI Agent Integrations ✅ Internal Business Platforms & Admin Dashboards ✅ Multi-Tenant SaaS Products ✅ Marketplace Platforms ✅ API Integrations & Automation Workflows Tech Stack: • Frontend: React, Next.js, TypeScript, Tailwind CSS, shadcn/ui • Backend: FastAPI, Node.js, NestJS, Spring Boot • Database: PostgreSQL, Supabase, MySQL, Redis • Cloud: AWS, Docker, CI/CD, Cloudflare, Vercel • AI: OpenAI, Claude, LangChain, RAG, Vector Databases Why clients hire me: • Strong product thinking, not just coding • Clear communication and weekly progress updates • Scalable architecture from day one • Fast execution without sacrificing quality • Proven track record across 100+ successful projects Whether you need an MVP built from scratch, AI features integrated into an existing product, or a SaaS platform scaled for growth, I can help you move from idea to production efficiently. Let's discuss your product and define the fastest path to launch.

What you get working with me: ① Any job done within full stack development: PHP, Laravel, Node.js, React, Vue.js, Angular ② A SaaS or Logistics platform that works exactly the way your business operates. Any stack the project requires, no limitations. As a welcome bonus on Upwork get a FREE consultation from an architect level full stack developer. I am a Full Stack Developer and Managing Partner leading a small team of senior engineers. No middlemen. I scope the project, I ship it, I own the result. We are small – you don't pay an "agency tax". We use AI where it actually helps. No "95% done but stuck." No surprises at launch. Clean code, predictable timelines, working demos every two weeks. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 ➤ SaaS Platforms (MVP to Scale) As a Full Stack Developer, I own the entire platform — from database architecture to UI. Rapid MVPs: Your idea validated in weeks, with a robust core. Complex Logic: Multi-tenancy, RBAC, and secure data isolation done properly from the start. Modernization: Legacy or unstable systems refactored into something maintainable and fast. ➤ Logistics & Supply Chain (Deep Domain Expertise) I know logistics operations from the inside. Custom TMS / WMS: One unified platform instead of 5-10 disconnected tools. Real-time Operations: GPS tracking, warehouse management, route optimization, document automation (BOL, POD). ➤ Smart Automation & AI Integrations (Engineering Approach) I add AI where it solves a real problem — not where it looks impressive on a slide. LLM API Integrations: OpenAI, Claude, Gemini connected to your actual workflows. Agentic Workflows: Automation and AI integrated directly into business processes and products. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 (𝗙𝗼𝗰𝘂𝘀𝗲𝗱 & 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲) - Back-End: PHP, Laravel, Symfony, Node.js (NestJS) - Front-End: React, Vue.js, Angular, TypeScript, JavaScript - Mobile: Flutter, React Native, Swift, Kotlin - API Development: Node/Express, Firebase, REST, GraphQL, etc. - Databases: MySQL, PostgreSQL, MongoDB, Supabase, Elasticsearch - AI Integrations: Anthropic Claude, OpenAI ChatGPT, Google Gemini, Llama, RAGs - Cloud: AWS, Google Cloud, Docker, Kubernetes 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? ✔️ Senior-Level Full Stack Developer on Your Project: you get my personal lead and a team of senior-only engineers. ✔️ System-First Approach: I define data flows and logic boundaries before writing code to ensure long-term stability. ✔️ Business-Driven Solutions: you get a product focused on ROI and operational efficiency. ✔️ Absolute Transparency: clear technical roadmaps and estimates, and 2-week delivery sprints with live demos. 𝐇𝐨𝐰 𝐖𝐞 𝐆𝐞𝐭 𝐒𝐭𝐚𝐫𝐭𝐞𝐝 ① Chat and/or Discovery Call: We analyze your vision, goals, and current bottlenecks. ② Technical Blueprint (48h): You receive a clear structure plan, roadmap, and fixed estimate. ③ Iterative Execution: 2-week sprints with working demos, keeping you in full control. Click "Message" to discuss your project. I'll provide an honest technical analysis of your idea and a FREE consultation to ensure your project is built to last.

Top Rated | 100% JSS | 50+ Projects | SaaS & VC-Backed Startups Frontend engineer focused on building fast, scalable SaaS products that are ready for real users - not just demos. I work with startups, founders, and product teams to turn ideas, Figma designs, and existing products into polished, production-ready web apps using Vue/Nuxt and React/Next.js. Over the last 5+ years, I’ve built SaaS dashboards, internal tools, client portals, MVPs, AI tools, fintech platforms, marketplaces, and marketing platforms (multi-page websites + CMS systems) for VC-backed startups ($25M+ funding) What I can help you build: - SaaS dashboards & admin panels - MVPs for fast launch and validation - AI-integrated web applications - Fintech & analytics platforms - Internal tools & business platforms - Marketplaces & booking systems - CRM / ERP interfaces - Real-time apps with WebSockets - Mobile-ready apps with Capacitor - Landing pages with strong UX & conversion focus - Complex frontend architectures - Pixel-perfect UI from Figma - Responsive, mobile-first applications - API integrations & third-party services - Performance optimization & frontend scaling What clients value about working with me: - Clean, scalable, maintainable code - Fast communication and consistent updates - Strong product thinking, not just coding - Attention to UX, performance, and details - Ability to work independently without micromanagement - Production-focused mindset from day one - Reliable delivery and ownership of features - Focus on long-term scalability, not quick hacks I don’t just build interfaces - I help create products that feel fast, modern, and reliable for real users. Core stack: Frontend: Vue, Nuxt.js React, Next.js, TypeScript Capacitor, React Native JavaScript Pinia, Vuex, Zustand, GSAP, Three.js, Anime.js Backend & APIs: Node.js, Express, Hono Python, Django, REST APIs, GraphQL Supabase, PostgreSQL Firebase, Auth systems, Realtime data UI & Performance: Tailwind CSS, SCSS, CSS Modules Responsive design, animations, optimization SSR, SPA, PWA Tools & Workflow: Git, GitHub, GitLab CI/ID Vercel, Netlify, Docker Figma-to-code workflows Agile / Startup environments Good fit if you need: - A frontend developer who can own features end-to-end - A reliable engineer for a long-term SaaS product - Someone who understands startup speed and priorities - A developer who can turn designs into polished production UI - Fast execution without sacrificing scalability - Clean frontend architecture for growing products If you need a fast, scalable SaaS frontend or MVP built properly from the start - send me a message.

I build AI powered web applications and SaaS platforms. If you need a product that works reliably, scales cleanly, and ships fast, that's what I do. Over the past 5 years, I've built and maintained production systems, including multi-tenant SaaS platforms, CRM systems, event management tools, e-commerce platforms, and learning management systems, most from architecture through deployment. Where I'm strongest: - AI integration - OpenAI API, AI powered chatbots, intelligent automation workflows, and AI driven features inside existing products. I help teams add AI capabilities that actually solve problems, not just look impressive. - SaaS application development - multi-tenant architecture, subscription logic, role-based access, API first design. I've built platforms handling real users and real transactions, not just demos. - Fast, production ready delivery - I move quickly without shortcuts. Clean architecture, well structured code, proper deployment. Most clients are surprised by how fast the first working version lands. Tech stack: - Backend: Node.js, Express, JavaScript, TypeScript - Frontend: React, Next.js, Vue.js, Nuxt.js - Database: MySQL, PostgreSQL, MongoDB, Supabase - Styling: Tailwind CSS, HTML, CSS, ShadCN - Cloud and Tools: Vercel, AWS, Docker, GitHub, Firebase, CI/CD - AI Tools: Claude, Copilot, Codex, Cursor, v0, Lovable, OpenAI API If you're building a SaaS product or adding AI features to an existing application, send me a message with a short overview. I'll tell you honestly whether I'm the right fit and how I'd approach it.