Hire the Best Swagger Professionals

From startup MVPs and SaaS platforms to AI-powered applications and internal business systems, I've spent the last 8+ years building products that solve real business problems. I work with founders, startups, and growing companies that need more than just a developer - they need someone who can understand the product, make sound technical decisions, and build systems that are scalable, maintainable, and ready for growth. Whether you're launching a new SaaS product, building an MVP, expanding an existing platform, creating customer portals, developing APIs, implementing subscription systems, or integrating AI capabilities, I focus on delivering solutions that create long-term value rather than short-term fixes. My expertise spans the entire development lifecycle, from architecture planning and database design to frontend development, backend systems, cloud infrastructure, deployment, and ongoing product improvements. Over the years, I've built and contributed to: • SaaS Platforms & Startup MVPs • Multi-Tenant Applications • Customer Portals & Admin Dashboards • Internal Business Tools • Subscription & Billing Systems • API-Driven Applications • AI-Powered Products & OpenAI Integrations • Automation Platforms & Workflow Systems • Cloud-Native Web Applications Tech Stack: Frontend: Next.js, React, TypeScript, JavaScript, Tailwind CSS, Material UI Backend: Node.js, NestJS, Express.js, REST APIs, GraphQL, WebSockets Databases: PostgreSQL, MongoDB, MySQL, Redis, DynamoDB Cloud & DevOps: AWS, Lambda, EC2, S3, RDS, CloudFront, Docker, CI/CD, Vercel AI & Automation: OpenAI, ChatGPT Integrations, AI Workflows, Automation Systems I enjoy working on products where technology directly supports business growth, user experience, and operational efficiency. 📩 If you're looking for a developer who can take ownership, contribute beyond implementation, and help build a product that scales, let's discuss your project. 🔑 Keywords Full Stack Developer, SaaS Developer, Next.js Developer, React Developer, Node.js Developer, TypeScript Developer, JavaScript Developer, Web Application Development, SaaS Development, MVP Development, Startup Development, Dashboard Development, API Development, REST API Development, Backend Developer, Frontend Developer, NestJS Developer, PostgreSQL, MongoDB, AWS Developer, Amazon Web Services, Docker, OpenAI Integration, AI Developer, ChatGPT Integration, AI SaaS Development, Cloud Application Development, Microservices Development.

Ex-Walmart Global Tech Engineer (Fortune #1 Company) | Backend, Full Stack & Cloud Engineer 5+ years of software engineering experience delivering scalable backend systems, SaaS platforms, cloud-native applications, workflow automation solutions, AI-powered products, and production-grade APIs. I've worked across enterprise and startup environments, delivering 20+ projects involving microservices, workflow orchestration, cloud infrastructure, DevOps automation, AI integrations, marketplace platforms, analytics systems, and large-scale business applications. At Walmart Global Tech, I built scalable backend services, APIs, workflow systems, and data platforms supporting enterprise-scale operations. My work focused on performance optimization, workflow automation, system reliability, cloud-native development, and large-scale data processing. I specialize in turning complex business requirements into reliable, scalable, and maintainable software solutions. 🚀 Backend Engineering ⭐ Java & Spring Boot ⭐ Node.js & Express.js ⭐ Python (FastAPI, Django) ⭐ PHP & Laravel ⭐ REST APIs & Microservices ⭐ OpenAPI / Swagger ⭐ Apache Kafka ⭐ Event-Driven Architecture ⭐ Camunda BPM & Workflow Automation ⭐ Apache Airflow ⭐ Third-Party API Integrations ⭐ Distributed Systems ⭐ System Design & Scalability Key Impact: ✔ Developed 100+ production APIs and integrations ✔ Improved API response times by 20–30% through performance optimization ✔ Built scalable systems processing millions of records ✔ Automated business workflows reducing manual effort by 50%+ 🎨 Frontend Development ⭐ React.js ⭐ Next.js ⭐ JavaScript ⭐ TypeScript ⭐ HTML5 & CSS3 ☁️ Cloud & DevOps ⭐ AWS Cloud Infrastructure ⭐ Docker & Containerization ⭐ Kubernetes ⭐ Jenkins ⭐ GitHub Actions ⭐ GitLab CI/CD ⭐ Infrastructure Automation ⭐ Deployment Automation ⭐ Linux Administration ⭐ Monitoring & Production Support ⭐ DevOps & Release Engineering Key Impact: ✔ Reduced deployment effort by 80% through CI/CD automation ✔ Improved release reliability through automated deployment pipelines ✔ Supported highly available production environments with strong observability practices 🗄️ Databases & Data Technologies ⭐ PostgreSQL ⭐ MySQL ⭐ MongoDB ⭐ Redis ⭐ SQL Server ⭐ Oracle Database ⭐ Elasticsearch 🤖 AI & Automation ⭐ OpenAI APIs ⭐ AI Integrations ⭐ Workflow Automation ⭐ AI-Assisted Development (Cursor, Claude, ChatGPT, GitHub Copilot) Key Impact: ✔ Built AI-powered workflow automation platforms ✔ Integrated AI services into production applications ✔ Automated content processing and operational workflows 🏆 Recent Project Highlights ✔ AI-Powered Workflow Automation Platform * Reduced manual processing effort by 50%+ * Integrated AI-driven automation into business workflows ✔ Enterprise SaaS Management Platform * Built scalable backend architecture and APIs * Improved operational efficiency through workflow automation ✔ Marketplace & Matching Platform * Implemented provider matching, notifications, and transaction workflows * Designed scalable backend architecture supporting future growth ✔ Enterprise Data & Analytics Platform * Processed millions of records through automated ingestion pipelines * Reduced reporting turnaround time significantly through automation ✔ DevOps Automation & CI/CD Platform * Reduced deployment effort by 80% * Improved release quality and deployment consistency ✔ Cloud-Native Backend Infrastructure * Designed scalable microservices and API-driven architectures * Implemented monitoring, observability, and production support workflows ✔ WiCAN / OBD Diagnostic Platform * Built backend integrations and CAN communication workflows * Developed hardware-to-cloud communication systems Why Clients Work With Me ⭐ Ex-Walmart Global Tech Engineer ⭐ 4+ Years of Professional Experience ⭐ 20+ Successfully Delivered Projects ⭐ Strong Backend, Full Stack & Cloud Expertise ⭐ Fast Execution & Ownership Mindset ⭐ Clean, Scalable & Maintainable Code ⭐ Enterprise + Startup Experience ⭐ Production-Grade Cloud Infrastructure Experience ⭐ Strong Debugging & Root Cause Analysis Skills ⭐ End-to-End Product Delivery Whether you need a scalable backend, workflow automation platform, AI-powered application, cloud-native architecture, marketplace platform, enterprise dashboard, SaaS product, DevOps automation, or complex system integration, I can help transform requirements into reliable, production-ready solutions.

Graphic Designer · Video Editor · Social Media Manager for Growing Brands I help small businesses & startups look professional, grow online, and convert followers into customers. Most small businesses struggle with one painful truth: they have a great product but look unprofessional online — and that costs them customers every single day. I'm Yassine, a Top Rated freelancer with a 100% Job Success Score and 4+ years of experience turning small businesses into brands people trust. I combine graphic design, video editing, and social media management into one seamless service — so you get a consistent, polished presence across every platform without juggling 3 different freelancers. ✅ Graphic Design — Logos, brand kits, social media visuals, and marketing materials that make your business impossible to ignore. ✅ Video Editing — Reels, ads, and short-form content edited for maximum reach and engagement on Instagram, TikTok, and YouTube. ✅ Social Media Management — Strategy, scheduling, community building, and data-driven growth — your brand active and growing while you focus on the business. What makes me different? I don't just deliver files. I deliver results. Every design, every video, every post is built around one goal: growing your brand and attracting your ideal customers. Whether you're launching from scratch or leveling up an existing brand, I'll make sure your business looks the part — and performs even better. Ready to build a brand that actually grows? Send me a message — let's make it happen.

Hello! Thank you for visiting my profile. I am a Manual QA Engineer with experience in testing web and mobile applications. I help identify bugs, test functionality, and ensure that software works correctly and smoothly for users. My experience includes functional testing, regression testing, API testing, and detailed bug reporting. I work carefully with requirements and always focus on accuracy and clear documentation. I also have experience with data entry, web research, and information processing. I am reliable, detail-oriented, and always focused on delivering high-quality results. I will be happy to help you with your project.

Slow backend? Unclear architecture? Need a complete web application built and deployed — without managing three different contractors? I build production-ready Java + Spring Boot backends paired with clean React frontends, deployed on AWS or GCP. Six completed Upwork contracts, three cloud certifications (AWS Solutions Architect, Oracle Java SE, GCP Associate), and a consistent track record of shipping systems that work on day one and stay maintainable at month twelve. What I deliver end-to-end: — Spring Boot REST APIs with OpenAPI documentation and proper error handling — Secure authentication: JWT, OAuth 2.0, role-based access control — PostgreSQL / MySQL database design with clean data modeling — React dashboards, admin panels, and workflow UIs wired directly to your APIs — Docker containers deployed to AWS (EC2, ECS, RDS) or GCP — CI/CD pipelines so your team ships without manual steps What makes this engagement different: I write documentation. I design APIs before I build them. I flag problems before they become your emergency. And I don't hand off code — I hand off a system you can actually operate. Best fit for: - SaaS startups that need a reliable backend with a functional frontend in 2–6 weeks - Teams replacing spreadsheets or manual workflows with internal tools and admin panels - Technical founders who want one accountable engineer, not a fragmented team My specialty is projects where the backend has to be correct — auth flows, data integrity, business logic, third-party integrations. The frontend needs to be functional and maintainable. If you need pixel-perfect animations, I'll refer you to the right person and stay focused on what I'm actually great at. Three certifications. Six contracts. Zero missed deadlines. 📩 Send a brief on your project — I respond within 4 hours (9 AM–9 PM IST). I offer a free 20-minute scoping call for projects that are a clear fit.

Senior Fullstack Software Engineer | Java, Node.js, React | CMS & IoT Expert 🚀 About Me I am a Senior Fullstack Software Engineer with 4+ years of experience in developing high-performance web applications, CMS platforms, and IoT solutions. My expertise spans across Java Spring Boot, Node.js, React, Magnolia CMS, and cloud-based architectures. I have led teams, optimized complex systems, and built scalable solutions for enterprise-level clients. 🔹 Backend: Java Spring Boot, Node.js, NestJS, Microservices, GRPC 🔹 Frontend: React.js, React Native, Headless CMS 🔹 CMS: Magnolia CMS, Liferay, WordPress 🔹 Databases: MySQL, MongoDB, SQL Server 🔹 DevOps & Cloud: Docker, Kubernetes, GitLab CI/CD, AWS 🔹 IoT & AI: Zigbee, MQTT, OpenCV, AI-based detection systems 💼 Notable Projects ✅ MMP’s CMS Website: Built a Java Spring Boot-based CMS optimized for high traffic and large datasets. ✅ Dentsu’s Headless CMS: Developed a scalable API-driven CMS using Magnolia CMS and React. ✅ Yoolife & YooIOC Applications: Smart city applications for residential and operational management. ✅ IoT Platform for Smart Devices: Developed a gateway integrating Zigbee, Z-Wave, and BLE devices with AI-powered event detection. 🔍 Why Work With Me? ✔ Proven expertise in enterprise CMS solutions & IoT systems ✔ Strong problem-solving skills in system architecture & optimization ✔ Experience leading development teams & mentoring junior engineers ✔ Passionate about building scalable, high-performance applications Let’s connect and bring your ideas to life! 🚀