Hello there! 8 years ago, I wrote my first line of code. Today, I architect systems that handle millions. But here's what hasn't changed: my belief that great products deserve obsessive attention. I treat your vision like it's my own; because in our partnership, it is. I’m Harshad Ladva, a Top 1% Expert-Vetted Senior Developer with over 𝟖 𝐘𝐎𝐄 building 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐚𝐧𝐝 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐰𝐞𝐛 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬. I don't just write code; I architect business-critical digital products using a future-forward stack that includes 𝐀𝐈-𝐝𝐫𝐢𝐯𝐞𝐧 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (𝐕𝐢𝐛𝐞 𝐂𝐨𝐝𝐢𝐧𝐠), 𝐬𝐞𝐫𝐯𝐞𝐫𝐥𝐞𝐬𝐬 𝐜𝐥𝐨𝐮𝐝 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞𝐬, 𝐚𝐧𝐝 𝐜𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐦𝐨𝐛𝐢𝐥𝐞 𝐟𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬. ✅𝐌𝐲 𝐂𝐨𝐫𝐞 𝐕𝐚𝐥𝐮𝐞 𝐏𝐫𝐨𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧: 𝐀𝐈-𝐀𝐮𝐠𝐦𝐞𝐧𝐭𝐞𝐝 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Leveraging Vibe Coding (Replit, Lovable.dev), AI-driven programmers (Cursor Pro, Windsurf), and AI agent automation (n8n, CrewAI) to accelerate development, enhance code quality, and automate complex workflows. 𝐄𝐧𝐝-𝐭𝐨-𝐄𝐧𝐝 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: From Mobile App Development (React Native, Flutter) and Web Development (Next.js, React) to Backend Engineering (NestJS, Node.js, Python) and Cloud DevOps (AWS, Vercel, Kubernetes); I own the entire product lifecycle. 𝐒𝐭𝐫𝐚𝐭𝐞𝐠𝐢𝐜 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐏𝐚𝐫𝐭𝐧𝐞𝐫𝐬𝐡𝐢𝐩: I function as your on-demand Lead Developer, ensuring your architecture is scalable, your codebase is maintainable, and your product evolves with market needs. ✅𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤 & 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 ▪️ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Web: Next.js, React.js, TypeScript, Angular, Vue.js, Remix, Astro Mobile: iOS, Android, React Native, Flutter, Expo, Ionic, Progressive Web Apps (PWA) UI/UX: Tailwind CSS, Material-UI, Shadcn/UI, Framer Motion, Figma to Code Modern Practices: Server-Side Rendering (SSR), Static Site Generation (SSG), Jamstack Architecture ▪️ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: Primary: Node.js, NestJS, Express.js, Python (FastAPI, Django), Go API Design: RESTful APIs, GraphQL, tRPC, WebSockets (Real-time features) Microservices & Serverless: AWS Lambda, Vercel/Netlify Functions, Microservices Architecture ▪️ 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠: AI-Powered Development: Vibe Coding (Replit, Lovable), Cursor AI, GitHub Copilot, Claude Code, Amazon Q Developer AI Agent & Workflow Automation: n8n, LangChain, CrewAI, AutoGPT workflows, Custom AI agent development AI Integrations: OpenAI API, Anthropic Claude, Gemini API, Vector Databases (Pinecone, Weaviate), LLM fine-tuning ▪️ 𝐃𝐚𝐭𝐚, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝: Databases: PostgreSQL, MongoDB, MySQL, Redis, Firebase, Supabase, Prisma ORM, Drizzle Cloud & DevOps: AWS (Amplify, EC2, S3, RDS), Vercel, Google Cloud Platform, Docker, Kubernetes, CI/CD (GitHub Actions, GitLab CI) Monitoring & Performance: DataDog, New Relic, Lighthouse, Core Web Vitals Optimization ✅𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈’𝐦 𝐓𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐀𝐈: 𝐄𝐝𝐓𝐞𝐜𝐡: AI tutors, adaptive learning platforms, automated grading & content personalization 𝐅𝐢𝐧𝐓𝐞𝐜𝐡: Intelligent fraud detection, automated compliance workflows, AI-driven financial assistants 𝐇𝐞𝐚𝐥𝐭𝐡𝐓𝐞𝐜𝐡: Diagnostic support agents, patient journey automation, HIPAA-ready clinical platforms 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐌𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞𝐬: Hyper-personalized recommendations, AI merchandising, automated vendor onboarding 𝐏𝐫𝐨𝐩𝐓𝐞𝐜𝐡: Smart property matching, predictive maintenance, AI document processing for leases 𝐋𝐨𝐠𝐢𝐬𝐭𝐢𝐜𝐬 & 𝐒𝐮𝐩𝐩𝐥𝐲 𝐂𝐡𝐚𝐢𝐧: Route optimization agents, real-time tracking, demand forecasting ✅𝐖𝐡𝐲 𝐈'𝐦 𝐖𝐨𝐫𝐭𝐡 𝐌𝐨𝐫𝐞 𝐓𝐡𝐚𝐧 𝐌𝐲 𝐑𝐚𝐭𝐞 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 – Deliver superior quality at accelerated timelines, reducing your development costs. 𝐅𝐮𝐥𝐥-𝐂𝐲𝐜𝐥𝐞 𝐎𝐰𝐧𝐞𝐫𝐬𝐡𝐢𝐩 – From initial concept and technical specification to deployment, monitoring, and iterative improvement. 𝐂𝐥𝐞𝐚𝐫 & 𝐏𝐫𝐨𝐚𝐜𝐭𝐢𝐯𝐞 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 – Daily updates, transparent timelines, and strategic recommendations. Fluent in English. 𝐅𝐮𝐭𝐮𝐫𝐞-𝐏𝐫𝐨𝐨𝐟 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 – Build with scalability, security, and maintainability as first principles. 𝐅𝐢𝐱𝐞𝐝-𝐏𝐫𝐢𝐜𝐞 & 𝐀𝐠𝐢𝐥𝐞 𝐌𝐢𝐥𝐞𝐬𝐭𝐨𝐧𝐞 𝐌𝐨𝐝𝐞𝐥𝐬 – Flexible engagement models tailored to your project needs and risk tolerance. ✅𝐖𝐡𝐚𝐭'𝐬 𝐘𝐨𝐮𝐫 𝐕𝐢𝐬𝐢𝐨𝐧 𝐖𝐨𝐫𝐭𝐡? This isn't an expense; it's your most leveraged investment. Every dollar spent with me returns in accelerated time-to-market, reduced technical debt, and scalable architecture. I don't just build software; I build compound interest for your digital assets. Let's discuss your ROI.

🔸 IQ 145-163 🔸 26 years of experience 🔸 547 completed projects on Upwork 🔸 Magento | Hyvä | Adobe Commerce: top 10 worldwide, 130 open-source modules 🔸 Shopify   ▹ Migrations from Magento (data mapping, SEO preservation, API sync)   ▹ Liquid programming   ▹ API integrations   ▹ Headless (GraphQL Storefront API, Next.js)   ▹ Custom app development   ▹ Online Store 2.0 (theme app extensions, app blocks)   ▹ Checkout UI extensions   ▹ Web Pixels   ▹ Data Modeling (metaobjects, metafields)   ▹ Functions (backend logic)   ▹ Flow (custom triggers & actions) 🔸 E-commerce analytics   ▹ Google Analytics (including server-side integrations via the Measurement Protocol)   ▹ Google Tag Manager (including server-side tagging/containers)   ▹ Google Ads   ▹ BigQuery   ▹ Meta Ads Manager: Meta Pixel & Meta Conversions API 🔸 E-commerce technical audit   ▹ Codebase & technical debt   ▹ 3rd-party integrations   ▹ Platform-specific health check (Magento / Shopify / WordPress)   ▹ Security, PCI DSS   ▹ Infrastructure & scalability   ▹ Database 🔸 E-commerce UX/CRO audit   ▹ Conversion rate optimization   ▹ Checkout friction & cart abandonment analysis   ▹ Payment gateway & transaction flow audit 🔸 Dashboards & reports   ▹ Google tools: Data Studio (Looker), Analytics, Ads   ▹ Microsoft Power BI   ▹ Grafana 🔸 Technical SEO   ▹ Google Search Console   ▹ Core Web Vitals / PageSpeed Insights   ▹ Schema(.)org & JSON-LD (E-commerce Rich Snippets)   ▹ Crawl budget optimization & log analysis 🔸 Business Intelligence   ▹ Cohort analysis   ▹ Customer lifetime value modeling   ▹ Profitability & margin tracking 🔸 Website Performance   ▹ Google tools: Lighthouse, PageSpeed Insights, Core Web Vitals   ▹ Server tuning: Varnish, Nginx, Linux, MySQL, MariaDB, Elasticsearch, PostgreSQL   ▹ PHP code profiling: Xdebug 🔸 Google Shopping   ▹ Merchant API   ▹ Content API for Shopping   ▹ Dynamic product feeds (XML, JSON, API-driven)   ▹ Automated catalog sync 🔸 Amazon Selling Partner API (SP-API)   ▹ Order synchronization (FBA, FBM, Seller Fulfilled Prime)   ▹ Multi-channel fulfillment integrations   ▹ Catalog, feeds & listings Management   ▹ Dynamic pricing   ▹ Financial & settlement reports automation   ▹ Inventory & replenishment sync   ▹ Amazon Ads API (PPC automation & metrics) 🔸 Amazon Web Services (AWS)   ▹ Elastic Compute Cloud (EC2)   ▹ Elastic Load Balancing (ELB)   ▹ Simple Storage Service (S3)   ▹ Elastic File System (EFS)   ▹ Auto Scaling   ▹ Relational Database Service (RDS, Aurora)   ▹ ElastiCache (Redis) 🔸 Cloudflare   ▹ Advanced caching   ▹ Bot management   ▹ Web Application Firewall 🔸 Elasticsearch   ▹ E-commerce catalog search optimization   ▹ Faceted navigation & filtering performance   ▹ Relevance tuning (query boosting, synonyms, fuzzy matching)   ▹ Autocomplete & instant search implementation 🔸 Make(.)com | Zapier | n8n   ▹ ERP, CRM, PIM & WMS integrations (NetSuite, Salesforce, HubSpot, Akeneo, etc.)   ▹ Omnichannel order, inventory & fulfillment synchronization   ▹ Automated customer onboarding, segmentation & retention workflows   ▹ B2B & B2C automated invoicing and financial reporting   ▹ Custom API connections, HTTP modules & Webhooks (REST, GraphQL, SOAP)   ▹ Custom app / node development (JavaScript / TypeScript / Python)   ▹ Advanced workflow architecture: iterators, routers, parallel processing   ▹ Error handling, logging, auto-retry 🔸 WordPress custom programming 🔸 Discourse (forum) custom programming 🔸 PHP | Python | JavaScript | TypeScript | SQL | Ruby 🔸 GitHub: 52K+ public commits (since 2009) 🔸 Master of Science in Computer Science and Mathematics, specializing in AI 🔸 117 items in my Upwork portfolio 🔸 Publications   ▹ mage2.pro?order=views   ▹ df.tips?order=views   ▹ dmitry.ai?order=views   ▹ discourse.pro?order=views   ▹ oplatform.club?order=views 🔸 Certifications   ▹ PyTorch | TensorFlow | Keras | Machine Learning   ▹ React | Vue.js | Node.js | Angular   ▹ Microsoft: Azure Architect | Azure Data Lake | SQL Server | Power BI   ▹ AWS Cloud Architect   ▹ Elasticsearch | MongoDB | MariaDB | MySQL   ▹ Python | WordPress | PHP

I have over a decade of experience working with technology and managing software projects. I have supervised and led the technical execution of multimillion-dollar contracts for my clients with tech companies such as Microsoft, Google and AWS as well as public entities such as the Swedish government. My greatest satisfaction is using state of the art technology to bring competitive innovation to businesses. I have supervised research papers from different universities in Sweden regarding machine learning and statistics, as well as successfully leading and managing distributed teams of software developers. My experience includes but is not limited to: -Data Extraction from PDFs using RAG -LLM Applications -Efficient Interfaces for Data Labeling at Scale -Automatic Speech Recognition Software -Inference and Productization of Machine Learning Models -R&D Management

⚡️𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 ⚡️𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 ⚡️𝐉𝐚𝐯𝐚 𝐄𝐱𝐩𝐞𝐫𝐭 ⚡️𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐄𝐱𝐩𝐞𝐫𝐭 Are you ready to dive into the world of 𝐫𝐨𝐛𝐮𝐬𝐭, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐮𝐬𝐞𝐫-𝐜𝐞𝐧𝐭𝐫𝐢𝐜 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬? Look no further! With over 15+ years of hands-on experience, I'm here to craft software that exceeds your expectations at every turn. 🔧 Technical Expertise: On the backend, I'm a maestro with Java EE/Spring Boot, building servers that are as sturdy as a fortress. Wrangling databases is my forte; SQL is my language, and MySQL, PostgreSQL, and Oracle are my playgrounds. Frontend? Piece of cake! I whip up sleek interfaces using HTML5, CSS3, and dance with JavaScript frameworks like Angular and React. 🏢 Industry Expertise: Finance, e-commerce, healthcare, telecommunications – you name it, I've been there! I know the ins and outs of various industries like the back of my hand. Need secure payment gateways, HIPAA-compliant apps, or turbocharged telecom systems? I've got you covered! 🌟 Why Me? I don't just meet expectations; I exceed them. My commitment to excellence knows no bounds. Collaboration is my middle name. I'm all about teamwork, communication, and getting things done. I live and breathe innovation. Staying ahead of the curve is my jam, ensuring your projects are always cutting-edge. 💼 Let's Collaborate: Ready to elevate your digital presence and drive business growth? Let's team up and make magic happen! Your vision, my expertise – together, we'll create something truly extraordinary. Let's make your next project a resounding success! 🎉 𝗕𝘂𝘇𝘇𝘄𝗼𝗿𝗱𝘀: Full-Stack Development | MERN Stack | MEAN Stack | React.js | Vue.js | Angular | Node.js | Express.js | Next.js | Nuxt.js | RESTful APIs | GraphQL | MongoDB | MySQL | PostgreSQL | Firebase | Docker | Kubernetes | AWS | Azure | GCP | CI/CD | Agile Methodologies | TDD | BDD | DevOps | Microservices | Responsive Design | UX/UI Design | Web Applications | Progressive Web Apps | Single Page Applications | Serverless Architecture | Cloud Computing | Version Control | Git | Frontend Development | Front-End Development | Front End Development | Backend Development | Back-End Development | Back End Development | API Integration | Security Best Practices | Performance Optimization | Scalability | Cross-Platform Development | Mobile App Development | HTML | CSS | JavaScript | TypeScript | SASS | LESS | Bootstrap | Tailwind CSS | Webpack | Babel | SEO Optimization | User Authentication | Authorization | WebSockets | Real-Time Applications | Test Automation | Unit Testing | Integration Testing | End-to-End Testing | Code Review | Continuous Integration | Continuous Deployment | Technical Documentation | Software Architecture | System Design | Project Management | Collaboration Tools | Jira | Trello | Asana | Slack | Python | Django | Flask | Ruby | Ruby on Rails | PHP | Laravel | Symfony | Java | Spring Boot | Kotlin | Swift | Objective-C | C# | .NET | ASP.NET | VB.NET | Go | Golang | Rust | Elixir | C++ | C | Scala | Perl | Haskell | R | MATLAB | Julia | TensorFlow | PyTorch | OpenCV | Xamarin | Ionic | Apache | Nginx | Redis | Elasticsearch | RabbitMQ | Kafka | Jenkins | CircleCI | Travis CI

🔹 What I build I build production backend systems that handle real-time distributed traffic at scale using Golang, Python and Node.js. I focus on systems where latency, reliability, and throughput directly impact production outcomes under high concurrency and event-driven workloads. I design and implement blockchain integration layers that connect backend systems with Ethereum-based transaction and wallet workflows in production environments. 🔹 Production impact Focused on building production-grade systems that improve reliability, throughput, and system resilience under real-world traffic conditions. Built real-time backend systems using Go, Node.js, and Python with Redis Pub/Sub and SSE for high-volume event-driven communication Designed and stabilized high-throughput API systems and microservice architectures under concurrent production traffic Developed blockchain transaction and wallet integration systems using Node.js and Ethereum-based stacks in production environments Implemented smart contract interaction layers and backend services for token and transaction workflows Built payment and external API integration systems with strong consistency, idempotency, and failure recovery requirements Operated cloud backend systems on AWS/GCP with scaling, monitoring, and production observability 🔹 Core engineering focus Distributed backend systems (Go / Node.js / Python) Event-driven architecture (Redis Pub/Sub, SSE) Blockchain transaction systems (Ethereum / Web3 integration) Backend ↔ on-chain data flow design High-concurrency API systems Production reliability, scalability, and latency optimization 🔹 How I work I identify bottlenecks in production systems across latency, throughput, and data consistency. I implement changes that improve system stability and performance across backend and blockchain layers without disrupting production traffic. 🔹 Availability Available for backend architecture, blockchain integration, system scaling, and production refactoring projects.

🏆 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 💯 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | ⭐ 𝟖𝟒 𝐉𝐨𝐛𝐬 · 𝟔,𝟎𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬 · $𝟏𝟎𝟎𝐊+ 𝐄𝐚𝐫𝐧𝐞𝐝 I'm a Senior Full-Stack Developer helping SaaS, FinTech, and TravelTech companies build secure, scalable web applications, with 12+ years of experience delivering for global clients. One client trusted me with a single project for 1,730+ hours. Others describe the experience as "dependable, perfect communication, completed quickly and efficiently" and "a great developer with in-depth experience." I'm Jehanzeb (Jazz), specializing in Laravel, PHP, React.js, Vue.js, and Python (FastAPI/Flask) development, REST and GraphQL API integration, and AI automation. Whether you're launching a new product or rescuing a stalled one, I architect the backend, integrate complex APIs, automate workflows with AI, and deliver clean, tested, maintainable code. 🚀 𝐖𝐡𝐞𝐫𝐞 𝐈 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐭𝐡𝐞 𝐦𝐨𝐬𝐭 𝐯𝐚𝐥𝐮𝐞 💳 𝐅𝐢𝐧𝐓𝐞𝐜𝐡 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 — Secure payment gateway integration (Stripe, PayPal, Plaid), digital wallets, transaction ledgers, and compliance features. Built PayGreenCard, a multi-tier digital wallet with seamless, secure transactions. 🧩 𝐒𝐚𝐚𝐒 & 𝐄𝐑𝐏 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 — Multi-tenant SaaS applications with role-based access control, subscription billing, workflow automation, and real-time features. Built Teamery, a team collaboration and task management platform with real-time communication. 📲 𝐒𝐌𝐒 & 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐀𝐏𝐈𝐬 — High-volume messaging platforms with A2P/P2P SMS, OTP, bulk routing, and analytics. Built an SMS routing and delivery analytics platform designed for scale and reliability. ✈️ 𝐓𝐫𝐚𝐯𝐞𝐥𝐓𝐞𝐜𝐡 & 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 — Hotel and flight booking engines using Hotelbeds, Expedia Rapid, Amadeus, Sabre, and Skyscanner APIs for real-time rates, search, and ticketing. 🤖 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 — AI chatbots, AI agents, and workflow automation that save clients time and money: • OpenAI and LangChain chatbots that reduced response times by 40% • Document summarization workflows that reduced review time by 50% • Automation systems built with n8n, Make, Zapier, and Python that reduced manual effort by 70% ✅ 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐤𝐞𝐞𝐩 𝐫𝐞𝐡𝐢𝐫𝐢𝐧𝐠 𝐦𝐞 • Proven success on large, long-running contracts (1,730+ hours on a React/Next.js/PHP platform) • Clean, modular, well-tested, scalable code your team can maintain • Clear, proactive communication and reliable on-time delivery • Full post-launch support and maintenance — I don't hand off and disappear ⚙️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: Laravel • PHP • CodeIgniter • Livewire • React.js • Vue.js • Next.js • Alpine.js • Python • FastAPI • Flask • OpenAI • LangChain • n8n • Make • Zapier • MySQL • PostgreSQL • MongoDB • Redis • AWS (EC2, Lambda, S3) • Docker • CI/CD • REST APIs • GraphQL • Stripe • PayPal • Plaid Looking for a Laravel developer, React developer, API integration specialist, or AI automation engineer who delivers enterprise-grade quality? 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 𝐰𝐢𝐭𝐡 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐠𝐨𝐚𝐥𝐬 𝐚𝐧𝐝 𝐈'𝐥𝐥 𝐫𝐞𝐩𝐥𝐲 𝐰𝐢𝐭𝐡 𝐡𝐨𝐰 𝐈'𝐝 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐢𝐭. Laravel, PHP, React, Vue.js, Full-Stack Development, API Integration, REST APIs, Python, FastAPI, AI Agent Development, Stripe, Payment Gateway Integration, SaaS, AWS, Automation

I’m a Senior Java Backend Engineer with over 14 years of experience building mission-critical systems in fintech, with a strong focus on payments, lending platforms, and core banking solutions. I specialize in Java and Spring Boot, and design backend systems that are secure, scalable, and capable of handling high-volume financial transactions with consistency and reliability. I’ve worked on systems involving payment processing, transaction workflows, loan management, and integrations with external financial services and APIs. This includes designing and building robust microservices architectures that support real-time and asynchronous processing, ensuring data accuracy, fault tolerance, and seamless service communication. I understand the importance of idempotency, transaction integrity, and failure handling in financial systems where even minor inconsistencies can have significant impact. Security and compliance are central to my approach. I have strong experience implementing secure authentication and authorization using Spring Security, token-based systems, and role-based access control. I build APIs and backend services that align with financial industry expectations around data protection, auditability, and reliability. From a technical standpoint, I bring deep expertise in Spring Boot, microservices, REST API design, JPA/Hibernate, and relational databases like MySQL and PostgreSQL. I’m comfortable designing systems from scratch as well as improving and scaling existing platforms, optimizing performance, and ensuring stability under load. I also have hands-on experience with AWS and Google Cloud, and have worked on deploying and managing backend systems in cloud environments. I understand how to design cloud-ready architectures, implement CI/CD pipelines, and ensure systems are resilient, observable, and production-ready. What sets me apart is my ability to think beyond just implementation. In fintech systems, correctness, reliability, and long-term maintainability matter more than quick fixes. I focus on building clean, well-structured systems that not only meet current requirements but are also prepared for future scale, regulatory needs, and product evolution. If you’re building or scaling a payments platform, lending system, or core banking backend and need someone who understands both the technical and domain challenges, I’d be glad to contribute.

👋 Hi, I’m Budianto – Senior DevOps Engineer | Docker Expert | Linux & Cloud Infrastructure Specialist Since graduating with a degree in Informatics in 2008, I’ve been building and optimizing software systems with precision and passion. Starting my career as a developer, I evolved into a DevOps Engineer in 2015, bringing a unique blend of software development expertise and deep infrastructure knowledge to every project. 🔧 What I Do Best: I help businesses automate, scale, and secure their infrastructure across cloud environments. Whether you're deploying a modern PHP app, optimizing AWS services, or tightening Linux server security, I deliver solutions that are reliable, maintainable, and tailored to your needs. 🚀 My Core Skills & Expertise DevOps & Infrastructure Automation - Docker & Docker Swarm containerization - CI/CD pipelines: GitHub Actions, GitLab CI/CD, Bitbucket Pipelines, Capistrano - Infrastructure-as-code with Puppet - Server orchestration and scaling using HAProxy, Load Balancers, and Auto Scaling groups Cloud Platforms & Services - AWS: EC2, Lightsail, S3, RDS, CloudFront, Route 53, ELB, Auto Scaling - Cloudflare: DNS management, caching, WAF, Page Rules, Workers, Pages - Other Cloud Providers: Digital Ocean, Linode, Vultr, Contabo, GoDaddy, BlueHost, Dreamhost Linux System Administration - Distributions: Ubuntu, Debian, CentOS, AlmaLinux, Fedora - Bash scripting and server automation - LAMP/LEMP stack management with Apache or Nginx - SSL configuration, cron jobs, backup strategies, firewall setup Database Management - MySQL, MariaDB, SQL Server, MongoDB - Database optimization, replication, and secure access controls Email & Monitoring - Mail Servers: Exim, Dovecot - Log Monitoring: ELK Stack (Elasticsearch, Logstash, Kibana), Graylog - Error Reporting: Integrated with Sentry.io for real-time issue tracking 📈 What Makes Me Different? - 15+ Years of Real-World Experience – I’ve seen the evolution of infrastructure firsthand - Full-Stack Infrastructure Knowledge – From coding to deployment and monitoring - Cloud-Native Approach – Optimized for high availability, low latency, and cost-efficiency - Problem Solver – I love untangling complex problems and building scalable solutions - Trusted by Clients – 5⭐ feedback from long-term Upwork clients since 2015 🔍 Looking For: - Clients who need a proactive, hands-on expert in: - DevOps implementation & automation - Secure and scalable AWS infrastructure - Cloudflare and CDN configurations - Dockerized application deployment - Linux server optimization and hardening - Web server troubleshooting (Apache/Nginx) 🤝 Let’s collaborate to take your infrastructure to the next level—secure, scalable, and future-ready.

🏆 Top-Tier AI Solution Architect, Data Engineer, Automation Expert, PHP Expert, System Architect, Laravel Developer, Vue.js, REST API Integration, Machine Learning, Prompt Engineering, Agentic AI, Eloquent ORM expert, Odoo Developer, web services, Zapier, Make, Airtable, AWS, Webhooks, CRM, MySQL, Python, ChatGPT, OpenAI API, Flask, FastAPI scripting, Airflow, Kafka, PySpark, Prefect, ETL, Wordpress, Woocommerce and web development with cumulative revenue of over $300K and over 500 projects completed successfully with ⭐⭐⭐⭐⭐ rating. 🏅 Web and REST API Integration tools PHP, Node.js, Express, Django, Python, Angular and Bootstrap. Specialization: AI, data engineering, backend solutions, automation, CRM development and implementing robotic process automation. Reddit API & AI Automation Expert | Sentiment Analysis & Community Intelligence Reddit API / PRAW (Python Reddit API Wrapper) 🏅 Relational Databases MySQL, Supabase and PostgreSQL. 🏅 NoSQL Databases MongoDB, Redis, DynamoDB, Firebase 🏅 Vector Databases Chroma, Weaviate, Pinecone, FAISS, and Elasticsearch 🏅 Data Warehouses Snowflake, BigQuery, Databricks, ClickHouse & Amazon Redshift Cloud data pipelines, ETL workflows, and modern data warehousing solutions. 🏅 No-Code or Low-Code Expertise in Make, n8n, Pabbly and Zapier. CMS platforms/Shopping carts/Tools: 1. Joomla 2. Magento 3. Wordpress 5. OpenCart 6. Shopify 7. Noloco Frameworks: 1. Zend 2. Laravel - Passport, Sanctum 3. Codeigniter 4. Phalcon 5. Django REST Framework 🏅 API Tools and Platforms: 1. Zendesk 2. Zapier 3. Batchbook 4. BigCommerce v3 API 5. Networx 6. Google Maps 7. Dropbox 8. Podio 9. Twilio 10. Underground Weather API 11. Mailchimp 12. Jotform 13. Infusionsoft 14. Paypal 15. Sendy - Amazon SES 16. Limelight CRM 17. Active Campaign 18. Wufoo 19. GetResponse API 20. ConstantContact 21. Mailgun 22. Dropbox 23. Etsy 24. Zoho 25. 3rd Vista 26. Sonar 27. SparkPay 28. Strategic Funding Source (SFS API) 29. Chaskify API 30. Currencylayer API - Exchange rates REST API 31. Shopify Webhooks API and Shopify Admin API 32. Clearbit API 33. Trello for project management 34. AgileCRM API 35. SendOwl API 36. ChartMogul API 37. ShipStation API 38. Hubspot CRM API 39. Prosperworks API 40. Clio API 41. Hoopla Development 42. Plivo API 43. Nexmo API 44. Coinbase API 45. CryptoCompare API 46. Formdesk 47. Drip 48. Tableau visualization and integration 49. SurveyAnyPlace API webhook 50. Ontraport API 51. Brivity CRM API 52. Facebook REST API, Twitter API, Linkedin API 53. Google Data Studio 54. Forex data API - 1Forge 55. Aircall 56. Integromat 57. automate_io 58. Acuity Scheduling 59. TextMagic SMS API 60. Bandwidth - Messaging API 61. Airtable Base Design and Automation 62. Amazon Gateway API 63. Pipedream 67. KuCoin 68. Zapier Custom Coding 69. WordPress REST API 70. Monday API 71. TikTok API 72. Terraform 73. Postman 74. Insightful 75. Teachable 76. Bubble 77. Make 78. Karbon API 79. GoHighLevel 80. Braze API 81. RecruitCRM API 82. Helpscout API 83. Givecloud API 84. Sendinblue API 85. Pabbly Connect 86. MPesa - Daraja API 87. ElevenLabs API 88. Supabase 89. Retool 90. Memberpress 91. Jobber API 92. Prisma 93. Salesforce API and Apex Scripting 94. CallRail API 95. No Code using Softr 96. n8n Automation Specialist 99. Housecall Pro API 100. JIRA Automation and API 101. Unbounce API 102. TradingView ERP 1. Odoo 2. Microsoft Dynamics 365 Business Central 3. ERPNext Source Code Management Tools 1. Github 2. Bitbucket Project Management Tools 1. Jira 2. ClickUp 3. Asana 4. Trello Data Engineering Tools 1. Talend Open Studio 2. Apache NiFi 3. Hadoop 4. AWS Glue 5. Azure Data Factory 6. Google Cloud Dataflow 7. Apache Airflow 8. Apache Spark 9. BigQuery 10. Hevo 11. Dbt (Data Build Tool) 12. Airbyte 13. Looker Studio 14. Dagster 🏅Engineering Lead - AI | Data Engineering | Software Engineering 🌟🌟🌟🌟🌟 Solid expertise in AI, data engineering, and software development - specializing in Retrieval Augmented Generation - RAG, LangChain, LlamaIndex, OpenClaw, Agentic AI, and robust API integrations. I build intelligent systems that connect seamlessly with real-world platforms. From fine-tuning open-source LLMs and deploying deep learning models to extracting insights from unstructured data (PDFs, raw text). Skilled in: ➜ LLM app development (open-source & proprietary models) ➜ AI Voice Agent ➜ Prompt engineering & model fine-tuning ➜ OCR, classification, NER, and neural machine translation ➜ Building and integrating APIs ➜ Implementing Enterprise RAG solutions (LLMs, vector search, embeddings) ➜ Scalable model training and deployment ➜ AI Tools: ChatGPT, MCP, Gemini, Air AI, VAPI AI, Bland AI, ElevenLabs, Claude, Retell AI, AWS Bedrock, OpenAI Assistants API using vector stores, threads, messages and runs. Core AI MCP server & AI agent connector development AI-ready data pipelines & real-time agent data infrastructure Agentic workflow orchestration & multi-system AI automation

Top-Rated Plus, Upwork Top 1 Percent, Highly recommended. What do I offer: 1- 100% work satisfaction 2- 24/7 Support 3- On-time delivery 4- Enterprise quality Cloud Architect with 7+ years of DevOps experience, specializing in scalable, platform-agnostic cloud infrastructures. Proven track record in high-scale environments. Proficient in Infrastructure as Code, automation, and scripting, with expertise in CI/CD, Cloud Services, and Infrastructure Automation. Skilled in building, deploying, and managing applications on AWS, GCP, Azure, and OCI, with a focus on robust monitoring and observability. ➜ Zazmic Inc, San Francisco, CA • Automation Tools: Terraform, Ansible • Cloud Platforms: GCP • Containerization: Docker, Helm charts • CI/CD: GitLab CI • Monitoring: HPA, Cloud Armour • Databases: Different kinds of databases on GCP ➜ Tripleseat, Concord, Massachusetts • Cloud Platforms: Azure, GCP • Containerization: Docker • CI/CD: Azure Pipelines, Azure DevOps • Monitoring: Grafana, Prometheus ➜ Century Communities, Inc., Greenwood Village, CO • Cloud Platforms: AWS, Oracle Cloud • Automation Tools: Lambda functions, Ansible • Containerization: Docker, AWS ECS, EKS • CI/CD: CircleCI, GitHub Actions, AWS CodePipeline • Monitoring: CloudWatch, CloudFront ➜ Summary: • Proficient in Kubernetes, I architect and manage clusters to facilitate agile and scalable application deployment. • Skilled in Infrastructure as Code (IaC), I employ Terraform, Ansible, and Chef to automate configuration and ensure uniform environments. • With hands-on experience in CI/CD pipeline creation and maintenance using Jenkins, GitLab CI, and Azure DevOps, I ensure the efficient and reliable delivery of software products. • Possessing a robust background in Linux/UNIX system administration, including expertise in managing RHEL environments. • Armed in scripting with Bash and Python to streamline automation processes and optimize operational efficiency. • Good Know how of monitoring and logging tools such as Elasticsearch, CloudWatch, Prometheus, and Grafana, enabling proactive monitoring of infrastructure and application health. • Experienced in VMware virtualization, proficiently managing VMs, executing V-motion operations, and maintaining Snapshots. • Adaptable to fast-paced 24/7 production environments, providing responsive on-call support, including weekends. • Successfully deployed and managed scalable microservices on Kubernetes clusters across GCP and AWS platforms. • Expertise extends to migrating on-premises workloads to the cloud, focusing on performance optimization and cost efficiency. • Possess proactive problem-solving and troubleshooting skills essential for maintaining high-quality production environments. • Strong communication and collaboration abilities, facilitating effective bridging of the gap between development and operations teams. ➜ Tools: Git, Ansible, AWS CloudFormation, ELK, GitLab, GitLab CI/CD, Terraform, Docker Compose, Grafana, Telegraf, CircleCI, Traefik, Amazon CloudWatch, Amazon Elastic Container Service (Amazon ECS), GitHub, VPN, AWS Fargate, Amazon CloudFront CDN, AWS IAM, Amazon Virtual Private Cloud, Docker Swarm, NGINX, Puppet, Jenkins, Amazon EKS, Amazon Simple Queue Service, RabbitMQ, Celery, TeamCity, Nagios, Makefile, AWS CodeDeploy, Confluence, AWS CodeBuild ➜ Platforms: Linux, Docker, Amazon Web Services, AWS Elastic Beanstalk, Amazon EC2, Kubernetes, AWS Lambda, Windows, Apache Kafka, JVM, Heroku, Azure, WordPress, New Relic, Windows Server, Google Cloud Platform, Blockchain, Rancher ➜ Storage: Amazon Aurora, Amazon S3, MySQL, MongoDB, InfluxDB, Redis, On-premise, Amazon DynamoDB, Redis Cache, Elasticsearch, MySQL, Databases, PostgreSQL ➜ Languages: Python, Bash, Java, PHP, Markdown, Go, JavaScript, SQL, TypeScript ➜ Frameworks: Flask, Django, Windows PowerShell, .NET, Serverless Framework ------------------------------------------------------------------------------------------------------ #CloudArchitect #DevOps #Kubernetes #Terraform#Azure #GCP #Docker #CI_CD #InfrastructureAsCode #CloudMigration #DevOpsEngineer #Automation #CloudInfrastructure #Microservices #CloudSecurity #NetworkSecurity #AWSCloud #AzureCloud #Serverless #AWSLambda #AzureDevOps #GitLabCI #GitHubActions #Linux #Unix #Bash #Python #GoLang #Java #Git #Ansible #Jenkins #NGINX #ApacheKafka #Databases #SQL #MySQL #PostgreSQL #MongoDB #Redis #DynamoDB #CloudStorage #S3 #CloudWatch #BackendInfrastructure #WebInfrastructure