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4+ Years of Backend & Cloud Expertise Backend Developer who turns complex logic into scalable, high-performance systems. 10+ Enterprise Projects | Millions of Records Optimized | AI-Powered Platforms Mobile & Web Solutions | Cloud-First Architectures I help startups, enterprises, and product teams build efficient, reliable, and scalable solutions. Whether you’re handling millions of users or fixing performance bottlenecks, I deliver results fast. Let’s talk before your competitors ship first. Certified in Software Development Lifecycle & Web Technologies Specialist in: Node.js • Python • Express • Next.js • React.js • AdonisJS • Nest.js Services Include Scalable Backend & API Development Modern Web & Mobile Apps Cloud & DevOps (AWS, GCP, Serverless) Database Design & Optimization QA, CI/CD & Full-Cycle Delivery As a Backend Developer, I’ve solved scaling issues for systems with hundreds of thousands of users, optimized databases with 500+ tables, and led projects from scratch to production. My experience spans finance apps, real estate platforms, healthcare systems, and AI-driven solutions. Tech Stack Programming: Node.js, Python, TypeScript, JavaScript Frameworks: Express, NestJS, Django, AdonisJS, Next.js, React.js Databases: PostgreSQL, MySQL, SQL Server Cloud/DevOps: AWS (Lambda, S3), GCP, Serverless, Docker, Kubernetes Others: GraphQL, NFC Apps, CI/CD Pipelines, SCRUM Agile Highlights Optimized large-scale systems (millions of records) for performance & scalability 1755366255035 Refactored legacy code reducing ~20% lines while improving clarity & speed Built AI Sign Language Recognition platform (SLOM) for the hearing-impaired Developed finance investment app with tailored fund recommendations Designed real-time bus/NFC system for safety & tracking Industries Served FinTech • Real Estate • Healthcare • AI & Ed-Tech • Transportation • Hospitality • Retail Let’s collaborate to build innovative, scalable, and future-proof solutions. Whether you need a custom CRM/ERP, a cloud-native backend, or an AI-powered platform, I can help you succeed. Backend Developer | Full-Stack Engineer | Cloud Solutions | Node.js Specialist

At Roobykon Software, I specialize in automating, scaling, and optimizing infrastructure and development workflows to help our clients achieve efficient, reliable software delivery. With over 10 years of hands-on experience as a Senior DevOps Specialist, I ensure robust integration and scalable operational environments for every project. Our team is dedicated to empowering companies to build and grow their marketplace businesses with cutting-edge DevOps solutions. 🏆 Area of expertise: • E-commerce (including multi-vendor marketplaces and product/service platforms) • FinTech (payment gateways, escrow systems, and custom financial solutions) • CRM Systems (tailored customer relationship management platforms) • Logistics (marketplaces for delivery, warehousing, and transportation) • Marketplace Development (B2B, B2C, peer-to-peer, product, service, and rental-based platforms using Sharetribe and custom-built solutions) • Travel and Tourism (booking platforms for accommodations, experiences, and tours) • Car Rent and Rental Websites (multi-vendor vehicle rental platforms) • Retail (multi-vendor e-commerce platforms, digital storefronts) • Construction and Real Estate (property listing marketplaces, contractor bidding platforms) • Aviation (charter services, private jet booking platforms) and boat rental (yacht, boats, jet ski) • Entertainment and Social Networking (event booking, ticketing, and social interaction platforms) • Marketing and Advertising (customized marketplaces for ad placements, influencer marketing platforms) • Insurance (platforms for comparing and purchasing insurance policies) • Industrial (B2B marketplaces for industrial goods and services) • Marketplaces for hospitality services, catering, and restaurant supplies • Mental Health and Healthcare (platforms for telemedicine, therapy services, healthcare provider listings) • Management (resource management platforms for HR, procurement, and project collaboration) Got an idea but unsure how to make it happen? We’ll provide tailored solutions to fit any budget and ensure everything is ready to go. With every project, we work as if it’s our own, always prioritizing your success. Buzzwords: Automation Continuous Integration Continuous Deployment (CI/CD) Infrastructure as Code (IaC) Microservices Orchestration Docker Kubernetes Monitoring Logging Containerization Scalability Load Balancing High Availability Disaster Recovery Fault Tolerance Infrastructure Automation Blue-Green Deployment Canary Deployment DevSecOps Secrets Management Immutable Infrastructure Jenkins Ansible Terraform GitOps Incident Management Rollback Auto-scaling EC2 S3 Lambda RDS Elastic Beanstalk CloudFormation ECS Fargate EKS Route 53 CloudWatch IAM SQS SNS CloudFront VPC Elastic Load Balancer (ELB) Redshift DynamoDB AWS Backup AWS CLI CloudTrail Security Groups DNS Management SSL Certificates Hosting Control Panel Domain Management Website Security cPanel Website Backup GoDaddy API Dynos Heroku Pipelines Add-ons Heroku Postgres Heroku Redis Heroku CLI Automated Deployments Buildpacks Git-based Deployments Jenkins CircleCI GitLab CI GitHub Actions Travis CI Pipeline Automation Continuous Testing Continuous Delivery Code Coverage Artifacts Rollbacks Webhooks Build Automation Docker Integration Deployment Automation Serverless Architecture Cloud Infrastructure Virtual Machines (VMs) Networking Configuration Load Balancers Storage Solutions Infrastructure Scaling VPC (Virtual Private Cloud) Network Security Monitoring Infrastructure as Code (IaC) Infrastructure Optimization Marketplace Development Multi-vendor Marketplace Sharetribe Go Sharetribe Flex Custom Marketplace Development Payment Gateway Integration Marketplace Scalability Sharetribe API Marketplace UX/UI Sharetribe Deployment MVC Architecture ActiveRecord Gem Bundler Action Cable RESTful APIs Convention over Configuration Rails Engines Active Job WebSocket Support Background Jobs TDD (Test-driven Development) Sharetribe Customization Sharetribe Expert Sharetribe Flex Sharetribe Go Sharetribe Expert Sharetribe Flex Developer Sharetribe Go Developer New Sharetribe

I’m Pavlo Pohuliailo, Founder of Deveteria (AI Development Team) - raised $100k in the financial year 2025-2026) Over the last few years, I’ve led 20+ AI solutions from idea to enterprise-grade production. With a team of 50+ experienced AI Engineers, AI Agent Developers, AI Researchers, IOS Mobile developers (Flutter, React Native), Frontend developers, Backend developers, Product Manager, DevOps, MLOPS, and many more. ✅ We are a fit if: Your company has a minimum of 5+ people already executing. You are the direct decision maker or can approve technical direction. Your project budget is at least $5,000 USD+ for the first phase. You aim for at least $10,000+ measurable efficiency or operational savings within 90 days from AI deployment. You are ready to begin within the next 2 weeks. ❌ We are not a fit if: Pricing is the primary factor above outcome, speed, and quality. You expect provable meaningful results inside 14 days or less. Your business falls under gambling, adult, or similar restricted categories. You are not collaborative or not open to strategic guidance. ⚡ Real Results ✅ TOINGG – Handles 10,000+ AI calls/min with 99.9% uptime ✅ AI Outreach Engine – Converted 200 cold messages → 8 booked meetings ✅ Trusted globally – by startups, agencies & enterprises across the US, UK, UAE, Australia and many more.. 🧩 Our Expertise 🔊 AI Voice & Communication - AI calling agents (TOINGG – our own product) - Voice interviewers & virtual receptionists - WhatsApp + Voice chatbot integrations - Sentiment-aware, memory-powered bots 🧠 Autonomous AI Agents - Multi-agent systems for recruiting, trading & operations - GDPR & EEOC-compliant recruiter AI - RAG pipelines + LLM-based decision logic - Hybrid human + AI workflows 🛍️ eCommerce & Retail AI - Shopify-integrated voice bots - Dynamic product recommendation systems - AI-powered sales & support automation 📊 AI Analytics & Insights - Personalized recommendation engines - AI-driven dashboards & business forecasting - Automated reporting with natural-language summaries 💼 Custom AI Use-Cases - Legal AI (Spanish law databases – RAG-based) - AI content & script generators for marketing - Healthcare marketplaces with smart matching 💡 How We Help 🔨 End-to-End Product Development - From idea → MVP → scale 👥 Team Augmentation - Add our vetted AI engineers or full dev pod to your team ⚙️ Optimize or Scale Existing Systems - We take over, refactor, and scale existing products seamlessly 🤝 Why Teams Work With Us ✅ Proven AI & Product Experience – not just prototypes, we ship in production ✅ Startup-Minded Speed – we build like cofounders, not contractors ✅ Enterprise-Grade Quality – security, compliance, uptime built-in ✅ Transparent Estimates – no surprises, every milestone defined ✅ Expert-Led Team – 32 vetted AI engineers & product specialists 💬 Let’s Talk We usually respond within minutes. Whether you’re building a new AI product or scaling an existing one — let’s make it production-ready. 📩 Message me today and let’s bring your AI vision to life.

With more than 18 years of experience - I represent a team of professionals that specializes in the healthcare and business and workflow automation domains. The team consists of experienced full-stack developers supported by senior system analysts who have developed multiple bespoke applications for Healthcare, Business Automation, Retail ,IOT , Ed-tech domains for startups and Enterprise Level clients. Our Healthcare expertise includes - Development of Cloud-based EHR Telehealth and Telemedicine Platform Development Electronic Medical Record (EMR) Development Electronic Health Record (EHR) System Development Practice Management System Billing Solutions Billing Management and EDI Processing Systems (EDI 837, 835, 270, 271, 276, 277, 999 etc.) Care Management Communication System Tele-Health, Tele-Medicine, Remote Monitoring SAAS Based Healthcare Systems Patient Portal and Document Management System Revenue Cycle Management SAAS Based Virtual Patient Monitoring System E-Prescription IoT remote monitoring Home Care Solution Mobile Applications and Device Integration Integrations like - Apple Health Samsung Health GoogleFit FitBit BlackBox RPM iHealth Devices (Glucometer, Oxymeter, BP Monitor) Workflow Automation Solutions Business automation & workflow development B2B/B2C Marketplace development POS Application Development CRM Development Retail Solutions Energy Management Systems (IOT Based) Lightning Control Systems (IOT Based) Real Time Dashboards MVP Development In sync with the latest standards and technologies in the industry, you can expect the excellence in all the aspect of IT Services & Solutions, be it Security (from HIPAA point of View), Turn Around Time (for innovative products), Cost-Effective, Industry-oriented, and User-Friendly. • Achievements - HIPAA Compliant Wellness and telehealth systems.WorkFlow Automation Solutions for healthcare segments , HIPAA Compliant Tele-Health Portal, Remote Patient Monitoring system • Onsite Visits (National/International both) I can demonstrate the applications, I have worked on and shall be happy to proceed further. Looking forward to a positive response.

☘ TOP RATED · 100% Job Success Senior System / DevOps Engineer with 13+ years of experience, specializing in the hosting industry, cloud infrastructure, and automation on AWS, GCP, and Azure. AWS Certified Solutions Architect – Associate. Core expertise: • Cloud & Infrastructure — AWS (EC2, VPC, RDS, Lambda, CloudFront, Route53, ELB, S3, ECS/ECR), GCP, Azure • Infrastructure as Code — CloudFormation, Terraform, Ansible • CI/CD & Automation — Jenkins, GitHub Actions, Bash, Python • Containers — Docker, Docker Compose, Kubernetes • Hosting & Web Stack — WordPress, Node.js, Ruby on Rails, .NET Framework / .NET Core Top projects: ☘ AWS Migration & Modernization — Migrated a production workload from AWS Lightsail to a multi-region AWS architecture (VPC, EC2 Auto Scaling, RDS Serverless v2, Route53, CloudFront, ELB, S3, Lambda). Fully managed as code with CloudFormation and automated via GitHub Actions and Python. ☘ Jitsi Video Platform — Provisioned, installed, and configured a production Jitsi deployment using Terraform and Ansible. ☘ Multi-Stack Web Hosting on OVH Cloud — Built, deployed, and managed JavaScript, Node.js, WordPress, and Ruby on Rails sites using Jenkins and Docker Compose. ☘ .NET on AWS — Dockerized and deployed .NET Framework and .NET Core APIs to AWS ECS/ECR with Jenkins and GitHub pipelines. I'm responsive throughout the day and happy to provide ongoing support after a project wraps up. Feel free to reach out any time — I'd be glad to help.

𝙄𝙛 𝙮𝙤𝙪 𝙣𝙚𝙚𝙙 𝙖 𝙛𝙖𝙨𝙩, 𝙢𝙤𝙙𝙚𝙧𝙣 𝙛𝙧𝙤𝙣𝙩𝙚𝙣𝙙 𝙩𝙝𝙖𝙩 𝙡𝙤𝙤𝙠𝙨 𝙜𝙧𝙚𝙖𝙩 𝙖𝙣𝙙 𝙨𝙘𝙖𝙡𝙚𝙨 𝙬𝙞𝙩𝙝 𝙮𝙤𝙪𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩 — 𝙮𝙤𝙪’𝙧𝙚 𝙞𝙣 𝙩𝙝𝙚 𝙧𝙞𝙜𝙝𝙩 𝙥𝙡𝙖𝙘𝙚. I’m Mudasir, a frontend developer specializing in React and Next.js. I build high-performance, scalable applications that load fast, rank well, and help businesses grow. 𝗪𝗵𝗮𝘁 𝗜 𝗛𝗲𝗹𝗽 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗔𝗰𝗵𝗶𝗲𝘃𝗲 ✅ Pixel-Perfect UI — From Figma to React / Next.js • Turn your design into real working code • Looks perfect on mobile, tablet, and desktop • Works smoothly on all major browsers • Clean and reusable code structure 𝗡𝗼 “𝗮𝗹𝗺𝗼𝘀𝘁 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲.” 𝗜𝘁 𝗺𝗮𝘁𝗰𝗵𝗲𝘀 𝘆𝗼𝘂𝗿 𝗱𝗲𝘀𝗶𝗴𝗻 𝗲𝘅𝗮𝗰𝘁𝗹𝘆. ✅ Fast & Smooth Websites • Improve website speed • Reduce loading time • Optimize images and code • Use Next.js features for better performance Result: Faster website, better user experience, better performance scores. ✅ SEO-Friendly & Accessible Websites • Clean and structured HTML • Mobile-first design • Accessibility best practices • Proper meta tags for better Google ranking Built to rank better and work well for all users. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 React.js | Next.js | TypeScript | Tailwind CSS Redux Toolkit | Zustand | React Query REST APIs | GraphQL | Git Figma to Code 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗜 𝗕𝘂𝗶𝗹𝗱 • SaaS Dashboards • Admin Panels • E-commerce Frontends • Landing Pages • Component Libraries • Progressive Web Apps 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗖𝗮𝗻 𝗘𝘅𝗽𝗲𝗰𝘁 • Clear communication • Realistic timelines • Clean, documented code • Regular updates • Long-term support • 40+ hrs/week availability 𝙄𝙛 𝙮𝙤𝙪 𝙣𝙚𝙚𝙙 𝙖 𝙧𝙚𝙡𝙞𝙖𝙗𝙡𝙚 𝙍𝙚𝙖𝙘𝙩 / 𝙉𝙚𝙭𝙩.𝙟𝙨 𝙛𝙧𝙤𝙣𝙩𝙚𝙣𝙙 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 𝙛𝙤𝙘𝙪𝙨𝙚𝙙 𝙤𝙣 𝙥𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚, 𝙨𝙘𝙖𝙡𝙖𝙗𝙞𝙡𝙞𝙩𝙮, 𝙖𝙣𝙙 𝙘𝙡𝙚𝙖𝙣 𝙐𝙄 — 𝙡𝙚𝙩’𝙨 𝙘𝙤𝙣𝙣𝙚𝙘𝙩.