Most developers build what you ask for. I build what your business actually needs. With a 98% Job Success Score, Top Rated Plus status, and 23 completed projects across 3,200+ hours of real delivery, I've spent 6 years helping startups and product teams ship SaaS platforms, AI-powered applications, and scalable web systems that hold up under real-world load. My core stack is React, Next.js, Node.js, and MongoDB; but the last couple of years, most of what I build sits at the intersection of full-stack engineering and AI. GPT-powered workflows, intelligent document processing, LangChain integrations, chat systems, automation pipelines. Features that used to require a dedicated ML team now ship in weeks when the architecture is right. One thing I do differently: I use AI-assisted development tools like Cursor, Claude, and GitHub Copilot as part of my actual workflow; not as a talking point. This means faster iteration cycles, cleaner code on first pass, and fewer back-and-forth revision rounds for you. A few things from recent projects: - Built a FinTech lending platform handling multi-step loan origination, KYC verification, and payment processing; serving thousands of active borrowers with zero downtime across 18 months. - Developed a telemedicine platform with real-time video consultation, EHR integration, and HIPAA-aligned data handling; onboarding 2,500+ patients in the first quarter post-launch. - Shipped a SaaS LMS for an EdTech company with course builder, assessment engine, progress tracking, and Stripe subscription billing; from MVP to 4,000+ enrolled users in 8 months. - Built an AI-powered document processing system using OpenAI and LangChain that reduced manual review time by 70%, processing 10,000+ documents per month automatically. - Delivered a marketplace platform with multi-vendor support, role-based dashboards, advanced search, and integrated payments; scaled to 8,000+ active users within 6 months of launch. What I typically work on: - Full-stack SaaS platforms; auth, subscriptions, multi-tenancy, role-based access, API integrations, the full product. - AI features and integrations; OpenAI APIs, LangChain, chat systems, document processing, workflow automation that replaces real manual work. - Scalable backend systems; clean modular architecture, PostgreSQL and MongoDB, AWS and Docker, CI/CD pipelines, and code that doesn't fall apart when traffic doubles. - Cross-functional product work; I've worked across FinTech, HealthTech, EdTech, and marketplace products. I understand the compliance requirements, the UX constraints, and the business logic specific to each. Why clients come back: - 98% Job Success Score across 23 projects isn't luck. It comes from taking full ownership of the outcome; not just the code. I flag problems before they become expensive, write architecture that the next developer can read, and stay accountable long after the final delivery. If you're building a SaaS product or AI-powered application and want someone who takes the whole thing seriously; send me a message. I'll come back within a few hours with a straight assessment of what it would take to build it right.

🔥 Having 20+ years of solid Technology R&D experience, I've been delivering global SaaS products as a full stack developer, versatile web developer, expert software developer, and dedicated saas developer. I partner with startups and F500 clients (Pfizer, Deutsche Bank, ING, Upwork, KLM, Ford) who need a complete full stack developer and mobile app developer proficient in React, vue, angular, Node.js, and Python. Whether your web project requires a highly interactive frontend engineered by a specialist react developer using vue and angular, a scalable .NET or golang architecture, a custom CMS built by a senior wordpress developer, or a dedicated Back End Developer to build secure Rust and solana microservices, my role as your full stack developer and software developer ensures immediate success. I bring deep expertise in JavaScript, PHP, and AI integrations, while also understanding the business side of saas sales and saas marketing, to build high-performance SaaS applications, proving that a seasoned full stack developer, web developer, and saas developer is the key to true digital web transformation. ⭐ Certified full stack developer, react developer, software developer, & saas developer Top Rated+ | 🏆 100% full stack developer Success for every SaaS contract utilizing React, vue, angular, Node.js, Python, golang, and Rust | ⭐ 5-star Rating for web, mobile app developer projects, AI, Web3 via solana, and SaaS | 💰 $300K+ earned delivering excellence as an elite full stack developer, web developer, software developer, and wordpress developer. My Python, JavaScript, .NET, golang, and PHP web solutions are built to scale globally and accelerate your saas sales and saas marketing efforts as a premier full stack developer and mobile app developer. ⭐ Extensive full stack developer and software developer expertise across web, mobile, and SaaS platforms. I serve as a complete full stack developer, web developer, Back End Developer, and saas developer, seamlessly integrating AI models and Web3 components (including solana smart contracts) into robust web systems. My technical arsenal for full stack developer projects includes the MERN stack using React and Node.js (excelling as a lead react developer), modern frontend frameworks like vue and angular, enterprise-grade .NET and golang Web APIs, scalable CMS platforms as a wordpress developer, and memory-safe Rust modules for solana ecosystems. By combining core JavaScript, advanced React, vue, and angular ecosystems, scalable Node.js and golang microservices, stable PHP databases, and smart AI features, I deliver exactly what every client wants from a top-tier full stack developer, cross-platform mobile app developer, software developer, and Back End Developer. Whether architecting a new SaaS platform in .NET, optimizing core financial engines in Rust or golang, deploying a custom theme as a wordpress developer, boosting technical infrastructure for saas marketing and saas sales, or scripting in Python for complex data processing, my full stack developer and saas developer approach covers all web and AI requirements. 🤖 Solid full stack developer and software developer experience across various high-load SaaS domains (Finance, PropTech, HRTech, Travel, eCommerce) relying heavily on flawless custom full stack developer execution. I thrive specifically as a dedicated React full stack developer, react developer, Node.js Architect, elite Back End Developer, and strategic saas developer, seamlessly blending AI performance, golang APIs, and Rust (including solana blockchains) into traditional SaaS workflows. My background as a full stack developer, web developer, and mobile app developer means I confidently utilize Python, golang, and Rust for heavy FinTech data analytics, .NET and PHP for robust eCommerce SaaS web portals, versatile CMS setups as a wordpress developer, and modern JavaScript, vue, angular, and React for interactive PropTech web dashboards. 🔥 Certified full stack developer Engineering and Solution Architect Expert (Ph.D. CS, PMP, CSP, CSM, CSPO, ICP-PPM, MCP). I deliver Agile/Scrum SaaS solutions as a lead full stack developer, dedicated react developer, software developer, and saas developer focused on web, AI, React, vue, angular, Rust, solana, golang, and .NET innovation. Managing cross-functional teams as a full stack developer, I ensure strict coding best practices across dynamic React, vue, and angular UIs, iOS/Android builds guided by a senior mobile app developer, Node.js, golang, and PHP backends, Web3 solana integrations, legacy .NET migrations, bespoke CMS builds managed by a wordpress developer, and sophisticated Python integrations designed to maximize your saas sales and saas marketing ROI. Every SaaS interface, web module, and Back End Developer component I architect meets the rigorous standards expected from a master full stack developer, saas developer, and web developer utilizing JavaScript and Rust. *Last Updated: 07.07.2026

🚀 Full-Stack AI SaaS Developer | MERN, HubSpot, Office.js & Fintech Hi, I'm Abdul Rehman — a Full-Stack SaaS Developer specializing in AI-powered SaaS platforms, HubSpot apps, Office.js add-ins (Excel & PowerPoint), and fintech automation. Since 2019, I've helped startups, agencies, and fintech teams ship production-ready MERN SaaS MVPs and AI tools built on OpenAI, ChatGPT, and LLM APIs. ✅ What I Do Best: - AI SaaS Platforms — Immerseo, an AI SaaS platform built with OpenAI and ChatGPT APIs, combining real-time SERP analysis, keyword clustering, automated content publishing, and search indexing. - HubSpot Apps & API Integrations — Currently building public HubSpot apps with AWS Lambda, Chargebee integration, and custom subscription billing workflows for B2B SaaS clients. - MERN SaaS MVPs — Built complete production platforms like ClikDone (SMB website builder with Stripe Connect, referral flows, and ERP features) and Mate Studio (social media content SaaS used in Germany). - Office.js Add-ins & Fintech Automation — Lead developer at AlphaScript, building Excel and PowerPoint add-ins (Office.js) for investment banking automation, integrating Redis, Airflow, RabbitMQ, and AI workflows. 🛠️ Tech I Use Daily: React, Next.js, Node.js, Express, NestJS, TypeScript, MongoDB, PostgreSQL, OpenAI, ChatGPT API, LLM Integrations, HubSpot API, Office.js, AWS Lambda, Chargebee, Stripe Connect, Redis, RabbitMQ, Docker, Tailwind, FastAPI, Playwright. 🎯 Why Work With Me? - 6+ years building production SaaS MVPs, AI-powered platforms, and HubSpot apps - Long-term reliability — multiple active contracts spanning fintech automation, HubSpot development, and Office.js add-ins - Strong payment integration background — Stripe Connect, Chargebee, subscription billing, and referral flows - Scalable infrastructure expertise — AWS Lambda, Docker, CI/CD, NestJS, MongoDB, PostgreSQL - Clear communicator — daily standups, async updates, and thorough documentation 📌 Looking for: AI SaaS builds, HubSpot app development, Office.js add-ins, fintech automation, and long-term SaaS partnerships. Let's build something impactful — I'll help you turn complex ideas into scalable, production-ready software.

Your product idea deserves more than a freelancer. I lead an AI-first full-stack team of developers and designers who turn business ideas into production-ready SaaS platforms and B2B applications — on time, on budget, every time. We use AI-powered development tools to accelerate delivery and maintain code quality at every stage — so you get faster turnaround without cutting corners. 192 completed projects. Clients include HIPAA-compliant healthcare platforms, B2B e-commerce systems, enterprise web applications, and custom SaaS tools built for thousands of concurrent users. "Working with this team has been an outstanding experience from start to finish." — verified Upwork client, 2026 "Outstanding Full-Service Project Delivery. I am extremely satisfied with the work — they exceeded all expectations and delivered everything." — verified Upwork client, 2025 And much more reviews since 2013 when I statrted here - currently 141 review and the average 4.9 stars. --- WHO WE WORK WITH We're the right fit if you are: — A SaaS founder moving from idea or prototype to a production-ready product — A B2B company that needs a custom platform, internal tool, or client portal — An e-commerce brand outgrowing your current setup (Shopify Plus, headless, custom) — A startup or scaleup that needs a reliable technical partner, not just a developer --- WHAT WE DELIVER SaaS Development Full-cycle product development: architecture, UI/UX, backend, infrastructure. Built to handle growth from day one — no expensive rewrites later. Stack: React, Next.js, Node.js, NestJS, PostgreSQL, AWS. AI Integration We integrate OpenAI, Google Vertex AI, and custom ML pipelines into your product — chatbots, smart search, recommendation engines, process automation. AI as a real business feature, not a demo. B2B Web Platforms Marketplaces, client portals, CRMs, LMS, internal tools — systems that connect your users, data, and business processes in one place. E-Commerce (Shopify / WooCommerce / Headless) Custom storefronts, Shopify Apps, WooCommerce platforms, headless commerce with Hydrogen or Strapi. Focused on conversion, performance, and ease of management. --- HOW WE WORK Every project follows a structured process: 1. Requirements gathering and business analysis 2. Proposal with timeline and budget estimate 3. Design (Figma) + Development with QA at each phase 4. Launch + post-launch support 5. Next phases — we build for the long term You get clear communication, weekly updates, and a team that treats your product like it's their own. --- TEAM Senior full-stack developers · UI/UX designers · DevOps/AWS engineers Tools: Figma · React · Next.js · Node.js · NestJS · PostgreSQL · AWS · Shopify · WordPress · OpenAI API --- Ready to discuss your project? Message us — scoping call and intro estimate are free. Updated: July 7, 2026

🔥15+ years, idea -> MVP -> production 🔥 I build scalable SaaS platforms, modern web applications, and backend systems from architecture to production deployment. With 15+ years of experience in full stack development, I help startups and product teams move from idea -> MVP -> production with clean architecture, reliable APIs, and scalable infrastructure. Most of the projects I work on involve building complete platforms from scratch, including frontend systems, backend APIs, database architecture, and cloud deployment. Typical projects I build: • SaaS platforms with multi-tenant architecture • Startup MVP development • React / Next.js web applications • Node and Python backend systems (Express, FastAPI / Django) • Admin dashboards and analytics tools • Payment and subscription platforms (Stripe billing) • Scalable REST and GraphQL APIs • Cloud deployments with Docker and AWS I focus on building systems that are maintainable, scalable, and production-ready from the beginning. Core Technology Stack Frontend Architecture: React, Next.js, TypeScript, Tailwind CSS, Shadcn, Component driven UI systems, SSR/ISR rendering, optimized frontend performance Backend Systems: Python (FastAPI, Django), Node.js, REST and GraphQL API, Authentication, RBAC, and scalable service layers Data & Storage: PostgreSQL, MySQL, Redis caching, Efficient data modeling and query optimization Infrastructure & Deployment: Docker, AWS, CI/CD pipelines, Production monitoring and scalable deployments Payments & Integrations: Stripe subscriptions and billing systems, Third party API integrations, Webhook based event systems Typical Project Experience Multi-Tenant SaaS Platform: Designed and developed a full SaaS platform with tenant-based architecture, subscription billing, user roles, and an admin dashboard. Implemented scalable APIs, secure authentication, and Stripe billing for subscription management. Stack: Next.js, Python FastAPI, PostgreSQL, Stripe, Docker AI Lead Gen Platform: LinkedIn tracking SaaS that monitors profiles, scores engagement signals with AI, and surfaces high-intent prospects in real time. Stack: Python, React, MongoDB, PostgreSQL, AWS Real Estate Capital Platform: Private marketplace connecting brokers with vetted investors, with AI deal matching and real-time portfolio analytics. Stack: FastAPI, PostgreSQL, Redis --- If you're building a SaaS product, MVP, or complex web platform, I can help design the architecture and deliver a production-ready system from start to deployment. Feel free to send a message and tell me about your project. Keywords Full Stack, SaaS, Python, JavaScript, React, Next.js, FastAPI, Django, API, OpenAI, Web Application, MVP Developer, Startup, Supabase, PostgreSQL, Docker, AWS

Looking for a 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 who can ship production-grade SaaS and AI integrations on time? You're in the right spot. 🏆 𝟭𝟬+ years as a Full Stack Developer (ex-Microsoft Bing, Princeton CS) 📊 $𝟮𝟬𝟬𝗞+ earned on Upwork across 𝟮𝟴 Full Stack Developer projects 🎯 Top Rated Plus with 𝟭𝟬𝟬% Job Success Score ⚡ 𝟲𝟬+ production SaaS and AI integration builds as lead Full Stack Developer ✅ Full Stack Developer for React, TypeScript, Node.js, Python, FastAPI 💼 Ubiquify Digital LLC (Austin, TX) | Full Stack Developer with Princeton CS ⭐⭐⭐⭐⭐ 𝑨𝒘𝒂𝒊𝒔 𝒂𝒏𝒅 𝒕𝒉𝒆 𝒕𝒆𝒂𝒎 𝒅𝒆𝒍𝒊𝒗𝒆𝒓𝒆𝒅 𝒂 𝒄𝒐𝒎𝒑𝒍𝒆𝒙 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 𝒃𝒖𝒊𝒍𝒅 𝒖𝒏𝒅𝒆𝒓 𝒂 𝒕𝒊𝒈𝒉𝒕 𝒕𝒊𝒎𝒆𝒍𝒊𝒏𝒆 𝒘𝒊𝒕𝒉 𝒄𝒍𝒆𝒂𝒏 𝒄𝒐𝒅𝒆, 𝒔𝒕𝒓𝒐𝒏𝒈 𝒂𝒓𝒄𝒉𝒊𝒕𝒆𝒄𝒕𝒖𝒓𝒆, 𝒂𝒏𝒅 𝒓𝒆𝒔𝒑𝒐𝒏𝒔𝒊𝒗𝒆 𝒄𝒐𝒎𝒎𝒖𝒏𝒊𝒄𝒂𝒕𝒊𝒐𝒏 𝒕𝒉𝒓𝒐𝒖𝒈𝒉𝒐𝒖𝒕. 𝑾𝒐𝒖𝒍𝒅 𝒉𝒊𝒓𝒆 𝒂𝒈𝒂𝒊𝒏 𝒘𝒊𝒕𝒉𝒐𝒖𝒕 𝒉𝒆𝒔𝒊𝒕𝒂𝒕𝒊𝒐𝒏 𝒇𝒐𝒓 𝒂𝒏𝒚 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝒑𝒓𝒐𝒋𝒆𝒄𝒕. (Marcus T., Upwork, 2025) As a Senior Full Stack Developer with a Princeton Computer Science background and 4 years as a Microsoft Bing engineer, I build production SaaS platforms and AI integrations for founders who need senior-level Full Stack Developer execution. My team and I work at the intersection of Full Stack Development and AI: React and TypeScript frontends, Python and Node.js backends, and AI layers built to hold up under real load. Full Stack Developer-first, agency-grade. 🔶 𝗖𝗥𝗘 𝗗𝘂𝗲 𝗗𝗶𝗹𝗶𝗴𝗲𝗻𝗰𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 (𝟯𝟮𝟱 𝗵𝗿𝘀): Lead Full Stack Developer on a commercial real-estate data platform for a US fund. B2B SaaS, complex data model, React, TypeScript, Python. 🔶 𝗥𝗲𝗮𝗰𝘁 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁 𝗦𝗮𝗮𝗦 ($𝟲𝟮𝗞, 𝟮,𝟬𝟳𝟴 𝗵𝗿𝘀): Full Stack Developer from zero to shipping for a production SaaS build. Full-stack React, TypeScript, Node.js. 🔶 𝗗𝗿𝘆𝗷𝗲𝗰𝘁 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴 𝗧𝗼𝗼𝗹 (𝟰𝟴𝟭 𝗵𝗿𝘀): Full Stack Developer build of an internal ops dashboard with reporting, data pipelines, and automation. 🔶 𝗠𝘂𝗹𝘁𝗶-𝗣𝗿𝗼𝗳𝗶𝗹𝗲 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗦𝗮𝗮𝗦 𝗕𝘂𝗶𝗹𝗱𝘀: Full Stack Developer on multiple AI integration, workflow automation, and SaaS MVPs. 🚀 𝗦𝗮𝗮𝗦 & 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 ✔️ Full Stack Developer for AI integration, agentic workflows, and LLM features ✔️ OpenAI API, Claude API, RAG systems with prompt reliability and context management ✔️ Full Stack Developer on FastAPI, Node.js, Django, Next.js, and PostgreSQL 🔄 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 ✔️ Full Stack Developer for n8n, Zapier, and Make . com at scale ✔️ Full Stack Developer integrations: CRMs, databases, payments, email, AI services ✔️ Idempotent workflows, retry logic, and data consistency across systems ⚡ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗕𝘂𝗶𝗹𝗱𝘀 𝗳𝗿𝗼𝗺 𝗭𝗲𝗿𝗼 𝘁𝗼 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 ✔️ Full Stack Developer on React, TypeScript, Vue.js, Python, MVP to production ✔️ Multi-tenant architecture, auth, permissions, API design ✔️ DevOps and deployment on AWS, Vercel, Railway, and GCP 🎯 𝗪𝗵𝗼 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗮𝘀 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 🔹 Founders building Full Stack SaaS products from scratch 🔹 Agencies needing Full Stack Developer capacity on complex builds 🔹 Series A to C startups scaling production systems 🔹 Operators replacing broken workflows with a senior Full Stack Developer 𝗡𝗼𝘁 𝗮 𝗳𝗶𝘁 𝗶𝗳: you need a solo Full Stack Developer for a simple landing page, WordPress theme work, or crypto/trading systems. 💡 𝗛𝗼𝘄 𝘄𝗲 𝘄𝗼𝗿𝗸: ✔️ Day 1-3: Discovery call, architecture doc, and scoped milestones from your Full Stack Developer team ✔️ Week 1: First working increment deployed to staging ✔️ Ongoing: Weekly demos, async updates, documented handoffs from the Full Stack Developer lead ✔️ What you get: Production Full Stack Developer output, full source, handoff docs, direct team access 📞 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗺𝗼𝘃𝗲? Send the job details and we will reply with a scoped plan within 24 hours. Need a Full Stack Developer who ships? Let's talk.

I help startups, founders, and businesses build 𝗦𝗮𝗮𝗦 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀, 𝗔𝗜 𝗮𝗴𝗲𝗻𝘁𝘀, 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, and 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 from idea to production. Over the last 8+ years, I have helped startups and established companies launch, scale, and improve software products by combining strong full-stack engineering with practical AI solutions that solve real business problems. I have worked on SaaS platforms, AI-powered applications, marketplaces, dashboards, internal tools, workflow automation systems, and customer-facing products across healthcare, fintech, education, real estate, and enterprise software. 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵: • AI Agents & Agentic Workflows • OpenAI & Claude Integrations • RAG & Knowledge-Based Systems • MCP & Tool-Calling Applications • AI Automation Platforms • SaaS Product Development • Startup MVP Development • Dashboards, Portals & Internal Tools • Marketplace & Directory Platforms • API Integrations & Backend Systems • Cloud Infrastructure & Deployment 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 & 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 𝗔𝗜 & 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺𝘀: OpenAI API, Anthropic Claude API, AI Agents, Agentic Workflows, MCP, RAG, LangChain, Vector Databases, AI Chatbots, Prompt Engineering, Multi-Agent Systems, AI Automation. 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 & 𝗦𝗮𝗮𝗦: React, Next.js, TypeScript, Node.js, Python, FastAPI, PostgreSQL, MongoDB, Supabase, Firebase, AWS, Docker, Vercel, REST APIs, Third-Party Integrations, Cloud Architecture, SaaS Development. If you are building a new AI product, scaling a SaaS platform, automating business workflows, or looking for a long-term technical partner, I can help take your product from concept to production. Let's connect.

I am a highly-skilled Python developer with more than 10 years of proven experience with Python and 8+ years of working with web development. I have built many web and mobile application backends of various complexity levels. Likewise, I have worked with individual entrepreneurs and with organizations in distributed teams of 25 people from all over the world. I have experience building SaaS and Enterprise projects in different niches. Like: ad-tech, healthcare, fintech and real estate. I often use these libraries during development: - Python: Django, Django Rest Framework, FastAPI, Flask, Pyramid, Asyncio, Aiottp, Tornado, Sqlalchemy, Graphene, Pydantic, Uwsgi, Django ORM, Bottle, Celery, Airflow, Dramatiq, Django channels, Sanic, Twisted. - Server-side: MySQL, PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ, ELK, ElasticSearch, AWS, AWS Lambda, AWS S3, Azure, GCP, REST API, GraphQL, Microservices, Docker, Docker compose, Kubernetes, AWS EC2, WebSockets, Nginx, SSH, Third-party API, PubSub, Debug, Facebook API, Google API, Twitter API, Outlook API, Vagrant, Nginx. - DevOps: AWS, Azure, GCP, Kubernetes, Docker, Docker compose, Prometheus, Grafana, Linux, UNIX, Jenkins, GitLab CI, Github Actions, Bitbucket pipelines, Terraform, Ansible, Bash, CI/CD, Load Balancing, Nginx, Apache. - BigData: Apache Spark, Apache Druid, Cassandra, DynamoDB, Clickhouse - I’m also proficient in JavaScript/NodeJS, Vue, Angular, and React. On Upwork, I hope to find challenging tasks to deepen and expand my server-side development skills, particularly Python. Also, I’m into DevOps engineering and am open to collaboration.

🔥 Send me your idea — and I’ll give you a free initial consultation with practical thoughts, possible solutions, and a rough time and cost estimate. Legacy systems draining budget, slowing delivery, and blocking growth? At OSKI Solutions, we help companies modernize legacy applications and build scalable cloud-ready products with our 3x delivery strategy: experienced engineers + AI-assisted coding + disciplined execution. That means you get more than just developers. You get a team that can move significantly faster on implementation, reduce repetitive work through AI-assisted workflows, and still keep architecture, maintainability, and business priorities under control. Most of our engineers are from Ukraine, and we’ve built a delivery model that combines strong technical talent with modern AI tools to help clients ship faster without sacrificing code quality. Over the past 20+ years, I’ve worked as a senior engineer, architect, and ex-CTO, helping startups, SMBs, and enterprise clients rebuild outdated systems into secure, scalable, future-ready platforms. We work hands-on with .NET, Node.js, React, and modern cloud infrastructure to turn brittle systems into products that are easier to maintain, extend, and grow. What we do best Backend Development .NET Core, ASP.NET MVC, C#, Entity Framework Node.js, Express, REST APIs, GraphQL APIs Microservices, event-driven systems, business-critical backend logic Frontend Development React, Next.js, TypeScript, Redux Angular, Vue.js, SPA and PWA development Responsive interfaces, Tailwind, Material UI Legacy Modernization Legacy .NET and custom business platform modernization Monolith to modular/cloud migration Performance, maintainability, and technical debt reduction CMS & Business Platforms Umbraco CMS, Umbraco Cloud, migrations, custom development ERP-related systems and workflow platforms Internal tools, client portals, dashboards, admin systems Cloud & DevOps Azure, AWS, Google Cloud Docker, Kubernetes, CI/CD pipelines GitHub Actions, GitLab CI, deployment automation Databases SQL Server, PostgreSQL, MySQL MongoDB, Redis, caching and query optimization API Integrations & SaaS Stripe, PayPal, Twilio, SendGrid Slack, Shopify, Zoom, QuickBooks, Google Maps SaaS integrations, workflow automation, external service connectivity Why clients choose OSKI Solutions 3x delivery strategy: senior engineers + AI-assisted coding + structured execution 20+ years of experience modernizing complex systems CTO-level thinking focused on business outcomes, not just tickets Full-cycle delivery from architecture to deployment Lean, practical approach that keeps MVPs and modernization efforts within scope Clear communication with weekly demos, tracked hours, and transparent reporting Selected results One Motion Technologies — designed and built ERP system from scratch TutorPro — helped scale a SaaS platform, supporting 3x adoption growth in 2 years Umbraco platforms — delivered 15+ CMS and business platforms, including cloud migrations and integrations What our 3x approach means in practice We use AI to accelerate coding, prototyping, refactoring, and repetitive engineering tasks — but not to replace engineering judgment. The result is: faster delivery, cleaner implementation, better budget efficiency, and a stronger technical foundation for future scaling. 💬 Send me a message, and I’ll review your project, suggest the best approach, and give you a realistic next-step plan.

Fullstack SAAS Developer | Laravel, React, Next.js, Node, Claude, AI Expert I am a Fullstack SAAS Developer specializing in Laravel/React.js/Next.js and modern web based application development with API integration, helping startups and businesses build scalable, high-performance SAAS platforms. I have experience building SaaS platforms, dashboards, automation tools, and AI-powered applications using modern frontend and backend technologies. My focus is on creating clean, scalable architectures and intuitive user interfaces that deliver real business value. On the frontend, I develop responsive and interactive applications using React.js, Next.js, TypeScript, and modern UI frameworks. On the backend, I build reliable APIs and services using Laravel, Node.js, Python, and cloud-ready SAAS architectures. I’ve worked on projects such as AI property platforms, healthcare AI systems, analytics dashboards, and full SaaS products, handling everything from product architecture to deployment. What I can help you with • Fullstack SAAS web application development • React.js frontend development • SaaS development • SAAS Dashboard and admin panel development • API development and integrations • Scalable SAAS backend systems • AI and automation integrations Tech Stack Frontend: React.js, Next.js, JavaScript, TypeScript, Tailwind CSS Backend: Laravel, Node.js, REST APIs, PostgreSQL Other: Cloud deployment, authentication systems, scalable SaaS architecture I focus on clean code, performance optimization, and building production-ready SAAS applications that scale as your product grows. Keywords (for Upwork search) Full Stack Developer Laravel Developer Backend Developer React Developer React.js Developer Next.js Developer Frontend Developer JavaScript Developer Node.js Developer SaaS Developer SAAS Expert Fullstack SAAS Developer Web Application Developer API Developer Dashboard Developer SAAS Data Analytics Developer SAAS CRM SAAS MVP SAAS Driven SAAS Software