I build scalable web and mobile applications with a strong focus on automation and product thinking. With experience in React, React Native, FastAPI, Supabase, Bubble, n8n and Airtable, I help founders and teams turn ideas into robust, maintainable solutions. My background in product and project management means I don’t just write code. I help define the right solution, structure the database properly from day one, and think through scalability and user experience. Whether you need an MVP, internal tool, automation system or full-stack application, I can help you design it right and build it efficiently.

I’m a senior full stack developer with over 20 years of experience designing, building, and scaling web applications across startups, agencies, and enterprise environments. I specialize in turning complex business requirements into clean, maintainable, and high-performing solutions. 🖥️ Full-Stack Development - Frontend development with React, Next.js, Angular and TypeScript — building fast, responsive, and highly intuitive user interfaces with modern UI architecture principles. - Backend engineering with Node.js, Laravel and Python — designing robust APIs and scalable systems powered by both relational and non-relational databases. - Performance optimization — improving load times, reducing bottlenecks, and ensuring smooth user experiences across devices and environments. - Clean architecture & maintainability — writing structured, modular, and testable code built for long-term scalability. - Security best practices — implementing authentication, authorization, data protection, and secure API design. 🤖 Advanced AI Systems & Intelligent Automation - AI Agents & Conversational Systems Autonomous AI agents for customer support, onboarding, internal ops, and knowledge assistance — built with memory, tool usage, and contextual awareness. - LLM-Powered Workflows & Decision Systems OpenAI / LLM integrations for intelligent summarization, data enrichment, classification, smart routing, semantic search, and automated decision-making across systems. - Retrieval-Augmented Generation (RAG) Architectures Secure AI systems connected to documents, knowledge bases, CRMs, and internal databases — enabling accurate, context-aware responses grounded in company data. - End-to-End Business Automation AI-enhanced CRM and campaign automation: adaptive email sequences, intelligent lead scoring, behavior-based tagging, predictive routing, and cross-platform data orchestration. - Scalable Automation Infrastructure Built using n8n, Node-RED, APIs, and custom orchestration layers to create resilient, scalable, and maintainable AI-powered operations. 🚀Over the years, I’ve: Architected and delivered full SaaS platforms from concept to production Refactored and scaled legacy systems serving thousands of users Built RESTful and GraphQL APIs Integrated third-party services, payment systems, and cloud infrastructure Led development teams and mentored junior engineers 💎Skills Frontend Systems — React, Next.js, Angular, TypeScript, scalable UI architecture, performance-focused rendering (SSR/ISR), responsive design. Backend & API Engineering — Node.js, Laravel, Python, REST/GraphQL APIs, microservices, event-driven systems, secure and scalable architecture. Database & Data Layer — PostgreSQL, MySQL, MongoDB, Redis, schema design, indexing, query optimization, caching strategies. Cloud & DevOps — AWS/GCP/Azure, Docker, CI/CD pipelines, serverless deployments, infrastructure scalability. AI & LLM Integration — OpenAI APIs, prompt engineering, function/tool calling, structured outputs, production-ready AI features. RAG & Intelligent Systems — Vector databases, embeddings, semantic search, knowledge-grounded AI workflows. Automation & AI Agents — Workflow orchestration (n8n/Node-RED), CRM automation, intelligent routing, AI-powered decision systems. Security & Architecture Standards — Authentication (OAuth/JWT), RBAC, encryption, clean architecture, maintainable and testable codebases. 🏆🏆🏆 I don’t just write code — I solve business problems. I communicate clearly, meet deadlines, and take ownership of projects from planning to deployment. If you’re looking for a reliable, experienced engineer who understands both technology and business impact, let’s connect.

Top Rated Salesforce Architect & RevOps Consultant | $800k+ Delivered for Global Clients | CRM, Automation & Revenue Strategy 𝗢𝘃𝗲𝗿𝘃𝗶𝗲𝘄 I help businesses unlock revenue growth and operational efficiency by building Salesforce and RevOps systems that scale. Whether you need a new Salesforce implementation, advanced automation, development or a full revenue process redesign, I bridge business strategy with technical execution. 📌 𝐁𝐚𝐜𝐤𝐠𝐫𝐨𝐮𝐧𝐝 • 10+ years of Salesforce & RevOps leadership across SaaS, Financial Services, Recruiting, EdTech, Media, Real Estate, Non-Profit, Professional Services, Manufacturing, and Retail.   • 50+ successful Salesforce & RevOps projects delivered for global clients (from startups to enterprise). • Managed clients ranging from $50K ARR to $50M ARR, tailoring Salesforce and RevOps strategies to fit their stage and scale. • End-to-end ownership: Salesforce architecture, product strategy, implementation, integrations, and long-term support. • Proven client outcomes: broke year-over-year revenue records for 5+ clients; reduced sales cycle times by 40%; delivered 3x faster lead routing; cut cost inefficiencies by 20%+. • Trusted advisor to founders, RevOps leaders, and GTM teams, aligning business strategy with technology. • Multi-role expertise: Architect, Developer/Admin, Business Analyst, Product Manager, and RevOps Lead. 💡 𝗛𝗼𝘄 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 • Salesforce Architecture & Admin - custom CRM setups, automation, workflows, approval processes. • RevOps Strategy - align marketing, sales & customer success for predictable revenue. • Integrations - experienced with 40+ tools across CRM, marketing, sales, analytics, finance, and support platforms (see below). • Dashboards & Analytics - data-driven insights to track pipeline, revenue, and performance. • Process Automation - eliminate manual tasks, reduce errors, and scale with confidence. ✅ 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗮𝗶𝗻 1. Revenue Growth - optimized lead-to-cash process. 2. Cost Savings - efficient, automated operations. 3. Clarity - real-time dashboards, compliance-ready reporting. 📬 𝐍𝐞𝐱𝐭 𝐒𝐭𝐞𝐩𝐬 Invite me to your job or send me a message. I’ll review your needs, share insights upfront, and ensure your Salesforce/RevOps setup drives measurable impact. (Resource Section) 🔗 𝐓𝐨𝐨𝐥𝐬 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 • CRMs: Salesforce, HubSpot, Pipedrive, Outreach • Marketing Automation: Salesforce Marketing Cloud, Pardot, MailChimp, HubSpot, Marketo, Constant Contact, ActiveCampaign • Data Enrichment & Prospecting: ZoomInfo, Apollo.io, Lusha, LinkedIn Sales Navigator • Sales Engagement: Outreach.io, Salesloft • Contract Management: CPQ (admin level), DocuSign, PandaDoc • Analytics & Reporting: Tableau, CRMA, Plecto, • Database / Project Management: Airtable, Asana, Notion, Trello • Customer Support & Service: Salesforce Service Cloud, Intercom • Finance: QuickBooks, NetSuite • Product Usage: Pendo • Forms: HubSpot Forms, GetFeedback, Pardot Forms • ETL / Data Management: Data Cloud, MuleSoft, Hevo, Snowflake, Databricks • Data De-duplication: RingLead (ZoomInfo), Cloudingo • Communication: Slack, Zoom • CTI: Vonage, Zoom, RingCentral, Aircall

OBJECTIVE: To obtain a challenging position in the field of Web Development. SKILLS Coding Experience: Responsive, Fluid, and Static Web Development experience, Web Based Point of Sale system creation, Stamps.com API, Authorize.net API, Amazon API, Paypal API, Login Systems, Multiple-Tiered Security Encryptions, SSL, AWS, Laravel, Node.js, Github, ReactJS, Redux, Gulp, PostCSS, GraphQL, Axios, MVC, CodeIgniter, Twilio API, OAuth, Puppeteer, Passport, Spark, Vue.js, Vuetify, Redis, MongoDB, Typescript, Unit Testing, Staart Framework, React Native, Express, Nuxt.js, Tailwind, Vite, Salesforce Languages: HTML/5, CSS/3, SQL, PHP, Javascript, JQuery, AJAX, command-line SCP, PDO, OOP Software: MS Access 2000/7, MS Word 2000/7, MS Excel 2000/7, MS PowerPoint 2000/7, Microsoft Visual Studio 2008, DreamWeaver, PuTTY, Amazon AWS, phpMyAdmin, WAMP, CPanel, Twitter Bootstrap, Laravel, Composer, Symfony, Redis, Pusher, ReactJS, Redux, Gulp, PostCSS, GraphQL, Axios, MVC, Docker, Vagrant, Heroku, BitBucket EM System Solutions 9/21 - current Lead Developer Developing their proprietary software across several versions. Maintained and optimized already existing code from previous developers for maximum efficiency and functionality. Managed all git branches, merges, and pushes to QA platforms and live. Performed all code review of other developers to ensure quality code was included, and bugs were found and fixed. Led a small team toward successful deadlines and pushes. Geisler Young 7/20-7/21 Web Developer Developed with several popular API frameworks including Twilio, Sendgrid, Mailgun, and AWS Created adaptable CRM system for multi-client structure for scheduling and booking appointments Edited existing and created new cron jobs for various requirements specified Applied custom form building system and structure from scratch for clients Updated and generated current and new database systems and structures for different projects Collaborated with other developers within the company to complete projects on schedule Designed API connection points to be used within separate applications in the company Led as project manager on several projects until successful completion Utilized my 10+ years of experience to help make business decisions for projects Communicated efficiently and effectively with team members daily to review and discuss work done Hub City Code 7/18-1/21 Web Developer Work on several large projects simultaneously while adhering to release schedules. Create and maintain Laravel backend systems, structures, and migrations Use Vagrant and Docker to create test servers locally for each project Vue.js and React.js front end frameworks for speed and optimization Code versioning using BitBucket, Github, and Heroku for projects OAuth authentication on server end, and using OAuth based API gateways Utilized Redis and MongoDB for a data retention project. Twilio API to send/receive and track text messages for client user-end software API/scraping data to create user analytics and transaction details DevelopVue applications using typescript and Express Created React Native android apps Lead several projects from start to completion and monitored all step throughout Gamers Paradise Inc. Rochelle Park, NJ 3/11-3/20 Lead Web Developer Created, Maintained, and Updated the Customer web site Developed E-commerce pages and developed backend and payment systems Built custom event booking systems and structures with detailed Calendar Made Custom Point of Sale system with payment, shipping, and analytics included Maintained all Database Structures and optimization Used PuTTY and phpMyAdmin to create and maintain Amazon AWS Servers Developed multiple levels of administrative analytics with different permission levels Created Online Shipping system and Return system with multiple tenders Developed automatic transaction/shipping creation from online orders through Amazon, Ebay

Top rated senior full stack developer, 🏆 12 years of full stack experience, delivering across web and mobile 🏆 One of the Top 1 % Full Stack Developers. 🏆 Developed more than 700 projects 🏆 Led teams of up to 20 people 🏆 Top-Rated Freelancer for a five Years High quality, in-time delivery, daily communication & forever relationship for updates are guaranteed. I’m a passionate and motivated engineer with over 12 years of experience in MEAN, MERN, MEVN, Full Stack, Spring Boot, Kotlin, OpenAI, JAVA Development Also, I have strong experience in developing mobile native/hybrid apps on iOS and Android. Currently working as a Senior Full Stack Developer. 🏆 Backend skills: ✅ PHP 7.x ✅ NodeJS/ExpressJS ✅ Laravel Framework ✅ Codeigniter ✅ Java ✅ Amazon Serverless ✅ AWS 🖼 Frontend skills: ✅ AngularJS ✅ React + Redux ✅ VueJS ✅ Vuex ✅ Require.js ✅ Material UI ✅ HTML5, СSS3, SCSS ✅ Vuetify ✅ Quasar ✅ Thunk, Saga, Observables ✅ JS Compilers: Babel.js, Gulp, Grunt, Webpack ✅ Adaptive layouts/frameworks - custom frameworks, Foundation, Bootstrap ✅ GruntJS/Gulp, WebpackJS 🎓 Expert CMS Development ( WordPress - Woocommerce and Shopify ) ✅ WordPress theme customization ✅ Wordpress Plugin Development ✅ eCommerce Solutions (Shopify / WooCommerce ) ✅ WordPress bug fixing & maintenance ✅ PSD to WordPress ✅ Html to WordPress theme ✅ WordPress child theme building ✅ WordPress responsive design ✅ Divi Theme ✅ Elementor ✅ WPbakery ✅ Avada ✅ Flatsome ✅ GeneratePress ✅ Beaver Builder ✅ WooCommerce Subscriptions ✅ Gravity Forms ✅ Genesis ✅ WPengine ✅ OceanWP ✅ Astra ✅ WPML ✅ CRM integration ✅ JackRabbit Class ✅ ACF ✅ Autoship ✅ Google Marketing Platform 📁 Databases: ✅ Mysql ✅ MongoDB ✅ SQLlite(for Android) ✅ NoSQL based ✅ Cassandra ✅ PostgreSQL ✅ Caching Engines: Redis, Memcached 💎 API Development: ✅ Twilio ✅ BrainTree ✅ Stripe ✅ Pyfolio ✅ Docusign API ✅ OpenCV ✅ Tesseract ✅ Tensorflow ✅ PyTesseract ✅ OpenGL ✅ Pusher ✅ Backtrader 🚀 Deploy: ✅ Amazon AWS ✅ Azure ✅ Google Cloud ✅ DigitalOcean ✅ Heroku 🧿 Version Control: ✅ GIT ✅ Git Hooks ✅ Git auto-deploy 🎥 Streaming: ✅socket.io + Pusher + PubNub ✅ Websockets ✅ Redis Pub/Sub ⏳ Dev-ops: ✅ AWS / s3 / Route 53 / ECS / EC2 / ECR / EKS / GCP ✅ Azure / Amplify ✅ AWS Serverless ✅ Linux/Apache/Nginx/Varnish Cache ✅ Docker and VirtualBox ✅ K8s Secrets / Namespaces ✅ Testing: Mocha, Jest, PHPUnit, Cypress ✅ Helm charts ✅ E2E/BDD/TDD Unit Testing ✅ Buddy/ Jenkins / Bamboo CI ✅ Protractor / Selenium ✅ Kubernetes ✅ Kubernetes Secrets management 📲 Mobile Application and Software skills: ✅ Java/Kotlin(Android) ✅ C/Swift(iOS) ✅ ReactNative ✅ Cordova/Ionic( 3.0/4.0) ✅ C/C++ (software/embedded platform) ✅ C# ✅ Mac OS X Development ✅ Cocoa/Carbon Application Development ✅ Cocoa Framework development (Frameworks for 3rd party apps) ✅ Objective C/ C++ ✅ iPhone/iPad Application Development ✅ Qt/Boost 🎮 Game Development ✅ Unity 3D (C#) ✅ Unreal Engine(C++) I believe in honesty and timely delivery of tasks. it would be my great fortune and pleasure to have a long term association with you as an individual or an organization.

I build high-performance digital infrastructure that drives revenue. Whether you need a complex B2B SaaS, an automated AI-agent integrated into your CRM or even a low-latency Web3 platform with automation smart-contract — I don't just write code, I engineer scalable systems. With a background as a Technical Team Lead managing distributed teams of developers, I understand that businesses don't buy code; they buy speed, security, and outcomes. My Core Expertise: - Web Architecture & Dashboards: Building lightning-fast, custom-coded web apps, admin panels, and SaaS dashboards using React, Next.js, and Tailwind CSS. (Focused on 100/100 PageSpeed and clean UI/UX). - AI & Process Automation: Advanced n8n and custom coded workflows, AI-Receptionists (Claude/GPT integrations), and automated lead-qualification systems that reduce response times to <5 seconds, documentation management and the most complex integrations - Web3 / Crypto: Custom Telegram Trading Bots, Solana ecosystem (QuickNode RPC, Meteora integration), memecoin launch infrastructure, and automated trading algorithms. - Technical Leadership: Architecture design, agile sprint planning, and system optimization. I can work solo as your lead engineer or seamlessly integrate with your existing team. I deliver clean, documented, and production-ready code. Let’s discuss your project constraints and hit your deadlines.

I build scalable marketing systems that drive revenue — not vanity metrics — by combining 17 years of strategic leadership with AI-powered execution. Most marketers strategize but can’t execute. Most creators execute but can’t drive revenue. I do both. 💡 What I Deliver ✅ Fractional CMO / GTM leadership
 ✅ AI-powered content + video production
 ✅ Demand generation & marketing automation
 ✅ KPI dashboards, analytics, attribution
 ✅ Full campaign execution (ads, content, funnels)
 ✅ CRM + automation systems (HubSpot, Zapier, n8n) 📈 Recent Results • +23% monthly user growth via AI marketing ops
 • $200k+ new monthly revenue from content systems
 • 162% audience growth (3.4M → 8.9M users)
 • 50% reduction in manual work via automations
 🎥 AI-Video & Content Execution • High-performance ad creatives
 • Founder-led content systems
 • Explainer video + UGC automation
 • Brand reels & short-form scaling
 ⚙️ Tools Runway, Descript, Midjourney, Adobe, HubSpot, Zapier, n8n, GA, SEMrush, Webflow, Canva 🚀 Ideal Clients • SaaS founders
 • Tech startups
 • Agencies + creators
 • Brands building AI-powered marketing
 Let’s build systems that scale revenue → fast. I've worked with world-renowned brands including Fortune 500 companies, leading AI platforms, and global media organizations. Company names available upon request to protect current partnerships.

If your organization is deploying AI, migrating to Azure, or struggling with cloud cost and governance, I help you design systems that scale securely and predictably. I am a Microsoft Certified Azure Solution Architect Expert with 30+ years of experience delivering mission-critical systems across financial services, healthcare, logistics, automotive, and government. My focus is not simply implementation — it is architectural clarity, cost discipline, and risk reduction at enterprise scale. Recent engagements include: • Designing secure Retrieval-Augmented Generation (RAG) architectures using Azure AI Search, OpenAI, and enterprise data stores. • Reducing Azure cloud spend by 40%+ through governance controls, policy enforcement, and FinOps optimization. • Leading disaster recovery and high-availability redesigns for regulated environments (HIPAA, SOC, CMMC). • Modernizing SQL Server and data platforms with performance and resiliency as first-class requirements. I combine deep hands-on expertise (C#, Python, Terraform, Azure AI) with executive-level architectural judgment developed over three decades. Clients typically engage me when: • AI deployments need enterprise security and compliance. • Azure costs are out of control. • Architecture has grown organically and requires rationalization. • Systems must scale without introducing operational fragility. If you need senior-level architectural oversight rather than task execution, I am available for fractional architecture engagements, modernization initiatives, and AI system de

I build 𝒎𝒐𝒅𝒆𝒓𝒏 𝒅𝒂𝒕𝒂 𝒑𝒍𝒂𝒕𝒇𝒐𝒓𝒎𝒔 and 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏-𝒈𝒓𝒂𝒅𝒆 𝑨𝑰 𝒂𝒈𝒆𝒏𝒕 𝒔𝒚𝒔𝒕𝒆𝒎𝒔 that turn messy enterprise data into reliable insights and grounded automation. Most AI projects die between the demo and production - the agent hallucinates, RAG drifts, and the underlying data was never trustworthy. I fix the foundation so AI actually ships. 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐢𝐧 𝐝𝐚𝐭𝐚 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐚𝐧𝐝 𝐚𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬. 𝐒𝐜𝐚𝐥𝐞𝐝 𝐁𝐲𝐭𝐞'𝐬 data platform through hypergrowth to a $1B exit, and led analytics and data integration at Ryman Hospitality. 𝑫𝒂𝒕𝒂 𝑬𝒏𝒈𝒊𝒏𝒆𝒆𝒓𝒊𝒏𝒈 Cloud warehouses and lakehouses on Snowflake (Cortex AI, AISQL, Cortex Analyst, Cortex Search) and Databricks (Unity Catalog, Mosaic AI, Delta Lake). Transformations and semantic models in dbt. Orchestration with Dagster, Airflow, Prefect, Azure Data Factory. Ingestion through Fivetran, Airbyte, dlt, CDATA. Open table formats on Iceberg and Delta. Data quality and observability with Great Expectations and Monte Carlo. Infrastructure as code in Terraform. 𝑨𝑰 𝑨𝒈𝒆𝒏𝒕𝒔 & 𝑮𝒆𝒏𝑨𝑰 Production agents built on LangGraph, CrewAI, Claude Agent SDK, Microsoft Agent Framework (Semantic Kernel + AutoGen), Pydantic AI. LLM integrations across Claude (Opus, Sonnet), GPT-4o and o-series, Gemini, Llama, Mistral. MCP (Model Context Protocol) servers for governed tool and data access. RAG systems with hybrid search, reranking, agentic retrieval, and evaluation harnesses. Vector stores including Pinecone, Qdrant, Weaviate, Chroma, pgvector. Observability and evals through LangSmith, Langfuse, Arize. 𝑩𝒖𝒔𝒊𝒏𝒆𝒔𝒔 𝑺𝒚𝒔𝒕𝒆𝒎𝒔 & 𝑩𝑰 Integrations across NetSuite, Shopify, Salesforce, AXS, HubSpot, marketing platforms, and custom APIs. Power BI semantic models, governed metric layers, and natural-language interfaces over warehouse data. 𝐏𝐫𝐨𝐛𝐥𝐞𝐦𝐬 𝐈 𝐬𝐨𝐥𝐯𝐞 - AI prototypes that fail in production, agents hallucinating without grounding, disconnected ERP/CRM/e-commerce data, fragile pipelines, dashboards no one trusts. 𝐎𝐮𝐭𝐜𝐨𝐦𝐞𝐬 - AI agents grounded in clean enterprise data, 30–50% reduction in manual reporting, production reliability with evals and guardrails built in, a single source of truth for both humans and agents. 𝐁𝐞𝐬𝐭 𝐟𝐢𝐭 𝐞𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭𝐬 - Snowflake or Databricks platform modernization, AI agent development, RAG and knowledge base builds, MCP server development, system integrations feeding BI and AI workloads, Power BI semantic layer rebuilds. If your AI use case is stuck in prototype, or your data foundation can't support what you're trying to build, let's talk.

Trusted by teams at Microsoft, BCG, ASU, Overjet, Stanley Black & Decker, Halliburton, and Toptal. I help founders and high-growth startups turn ideas into investor-ready products without wasting capital on the wrong roadmap, the wrong architecture, or the wrong team. As a Fractional CPO and Fractional CTO, I work across AI product strategy, product discovery, technical strategy, and solution architecture. I help startups decide what to build, how to build it, and how to move from concept to a scalable AI MVP with less rework, less technical debt, and better execution. I lead Vinci Labs, an AI-focused product and technology consultancy that helps founders bridge the gap between idea and execution. My work combines product leadership with deep technical direction so startups can validate faster, scope smarter, and build with confidence. I work across AI agents, agentic systems, RAG pipelines, LangChain, LangGraph, AI automation, AI integration, and startup MVP architecture. That includes shaping product requirements, defining system design, reviewing technical tradeoffs, aligning teams, and guiding delivery toward practical business outcomes. I am typically brought in when a company needs: • Fractional CPO or Fractional CTO leadership • AI product strategy and roadmap definition • AI Architect support for MVP and scale decisions • Build AI MVP guidance from concept to delivery • Technical due diligence, architecture review, or code audit • Alignment between founders, product, engineering, and business teams My background includes work across healthcare, SaaS, EdTech, e-commerce, HRTech, real estate, AgriTech, government, and defense-linked environments, including products with privacy, security, compliance, and governance requirements. I also bring the perspective of a founder and startup advisor. As Director at Founder Institute, I understand the pressure founders face when capital is limited, timelines are tight, and the wrong product or technical decision can become very expensive later. Selected client feedback: • “Exceptional attention to detail in translating complex, deeply customized software into clear, user-friendly content.” — Shirsesh B., Principal Data Scientist, BCG • “Provided essential structure and direction when I was lost, turning my dream app into something real and achievable.” — Ivan B. Senior Casting Producer, Disney • “Invaluable at bridging the gap between business needs and technical teams.” — Boris S., Chief Knowledge Officer, Enlight If you need a Fractional CPO or CTO to shape the roadmap, de-risk the build, and lead execution toward an investor-ready MVP, send an invite or book a consultation.