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I’m a Senior Software Engineer and Team Lead with 6+ years of experience building scalable, cloud-based web, mobile, AI agents, and AI-powered applications. I specialize in Node.js, TypeScript, React/Next.js, React Native, and AWS architectures, with proven expertise in designing microservices, cloud solutions, and AI/LLM integrations. I help startups and enterprises accelerate product development, optimize cloud costs, and implement intelligent automation systems. My experience spans: • Full-stack web & mobile applications with modern frameworks • AI agents, workflows, LLM integrations, and vector-based search systems • Scalable microservices, APIs, and DevOps automation • Cloud architecture, migration, and performance optimization I deliver clean, maintainable code, take ownership of projects end-to-end, and ensure your software scales efficiently. Let’s build something impactful together.

I am serving as a Full Stack developer and have worked on comprehensive applications for different market verticals in last 7 years. My core expertise has been delivering bespoke solutions that meet the client's requirements. Here's a quick brief about my technical skills: - MEAN/MERN Stack (Node.js, Express, Angular.JS, MongoDB, ReactJS). - RESTfull APIs and GraphQL. - Responsive Design. - Version Control - Git, SVN. - Photoshop, UI/UX, Graphics Designing. - Experience using third party APIs. - Developing jank free websites that load faster. I am capable of assisting my clients with entire development cycle starting from requirements gathering, application GUI, application front-end and back-end development. I have developed simple to complex web application using ReactJS, Angular, NodeJS, MongoDB, ExpressJS. As a full stack developer, am responsible for writing server-side web application logic and the front end part too. I develop back-end components, connect the application with the other (often third-party) web services, and integrate with the front end components of the application.

Full Stack Engineer & AI Developer | 8+ Years Building Production Systems I build full stack web apps, AI tools, and automated workflows that handle real traffic, real users, and real money. What I specialize in: AI & LLM Applications including RAG pipelines, AI chatbots, conversational AI, document processing, semantic search, and AI agents. Production-grade tools, not API wrappers. Full Stack Web Applications from MVPs to enterprise platforms. Shipped fintech apps, SaaS products, healthcare systems, e-commerce stores, dashboards, and real estate platforms. Workflow Automation with n8n and AI that replaces hours of manual work. Email triggers, PDF parsing, data extraction, Slack notifications, CRM updates, invoice processing, web scraping, all on autopilot. GoHighLevel (GHL) CRM & Sales Ops covering sub-account setup, opportunity pipelines, Conversation AI for SMS and web chat, Voice AI agents that answer calls and book appointments, workflow automations, missed-call text-back, round-robin assignment, nurture sequences, A2P 10DLC, and white-label SaaS-mode rebilling. Tech I work with: Frontend: React, Next.js, Angular, Vue, TypeScript, Tailwind, Redux Backend: Node.js, NestJS, Express, Django, FastAPI, Flask, Python, .NET, C#, REST, GraphQL AI/LLM: LangChain, OpenAI, Claude API, Gemini, Hugging Face, Pinecone, RAG, vector databases, prompt engineering Automation & CRM: n8n, GoHighLevel (GHL/HighLevel), Zapier, Conversation AI, Voice AI, A2P 10DLC, Twilio, LC Phone, LC Email, webhooks, web scraping Databases: PostgreSQL, MongoDB, Redis, Supabase, MySQL, Elasticsearch Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, CI/CD, Vercel Not limited to these. I pick whatever works best for your project. Some things I've done over the past 8 years: Built a fintech trading platform that processed $15M+ in transactions Shipped a SaaS product to 10,000+ active users with 99.9% uptime Set up n8n pipelines that killed 20+ hours/week of manual data entry Built RAG systems that improved search accuracy by 85% for enterprise clients Migrated a legacy Python 2.7 codebase to Python 3.10 in under 2 months Improved React frontend load times by 40% through performance work Built a full GoHighLevel system for roofing companies with opportunity pipelines, Conversation AI, Voice AI for inbound calls, missed-call text-back, and round-robin routing that turned after-hours leads into booked appointments How I work: Honest timelines, not padded ones. Daily updates, clean code, and a product that actually works. Most projects fail because of poor communication, not bad code, so I overcommunicate. 30 days of bug fixes after launch because I don't disappear once the project is done. Got a project in mind? Send me the details and I'll get back to you within a few hours. Keywords: Full Stack Developer, React Developer, Next.js Developer, Angular Developer, Node.js Developer, NestJS, Python Developer, Django, FastAPI, TypeScript, .NET Developer, C# Developer, ASP.NET Core, GraphQL, REST API, AI Developer, AI Engineer, LLM Application Developer, RAG Developer, LangChain, OpenAI, Claude, Gemini, Pinecone, Vector Database, Prompt Engineering, AI Chatbot, Conversational AI, AI Agent, Generative AI, n8n, Workflow Automation, Web Scraping, Zapier, GoHighLevel, GoHighLevel Expert, GHL, GHL Expert, GHL Developer, HighLevel, GHL Snapshot, GHL Workflows, GHL Voice AI, GHL Conversation AI, Voice AI Agent, Opportunity Pipelines, CRM Automation, Sales Funnel Automation, Missed Call Text Back, A2P 10DLC, LC Phone, LC Email, Twilio, SaaS Mode, White Label CRM, Lead Generation Automation, Round Robin Lead Routing, Appointment Booking Automation, Roofing CRM, Contractor CRM, Med Spa CRM, Real Estate CRM, Agency CRM, PostgreSQL, MongoDB, Redis, Supabase, Elasticsearch, AWS, GCP, Azure, Docker, Kubernetes, Stripe, Shopify, WordPress, Microservices, SaaS Development, Bot Development, WebSockets, DevOps, CI/CD, Clean Architecture, JWT, OAuth, Vercel

Most AI products fail not because the technology is wrong but because nobody thought through how people would actually use them. That's the gap I fill. I'm a Full Stack AI Engineer working with startups and businesses to build AI Agents, SaaS products, and automation systems that solve real operational problems not just demos that look good in a pitch deck. From architecture and backend to frontend and deployment, I take end-to-end ownership. You don't need to manage five different contractors I handle the full build. ━━━ WHAT I BUILD ━━━ 🤖 AI Agents & Workflow Automation Custom AI agents that handle real business workflows lead qualification, document processing, customer support, internal operations. Built with LangChain, OpenAI, and n8n so they actually run reliably in production. 🚀 AI-Powered SaaS & MVPs From idea to deployed product I architect and build multi-tenant SaaS platforms, RAG-based knowledge systems, and custom GPT applications that are clean, scalable, and built for growth. ⚙️ Backend & API Development FastAPI, Python, PostgreSQL, MongoDB solid backend foundations with clean architecture so your product doesn't break when it scales. ━━━ TECH STACK ━━━ OpenAI • LangChain • Python • FastAPI • React • Next.js • Node.js • PostgreSQL • MongoDB • Firebase • Stripe ━━━ WHO I WORK WITH ━━━ Founders validating an MVP, startups scaling a product, and businesses automating workflows if you need a technical partner who takes ownership and ships fast, send me a message and let's build something that actually works.

Senior Full Stack & AI Engineer - Ex American Airlines and Ericson Canada Senior Software Engineer. I've spent 10+ years shipping Full Stack AI Solutions to production. At American Airlines, I worked on the booking platform that moves millions of travelers across the US. At SolarWinds and Ericsson Canada, I built infrastructure and data pipelines at enterprise scale. Since then I've taken that same discipline into startups and product companies and building from zero, taking over broken codebases, and shipping things that stay shipped. Production work I own today: a programmatic ad exchange with real-time bidding and Stripe Connect payouts, an AI voice agent on OpenAI Realtime hitting sub-35ms response handling live business calls with no human in the loop, a HIPAA-compliant healthcare platform with HL7 and FHIR integration, a real-time geospatial mobile app, and a fintech SaaS processing real transactions. All live. All mine to maintain. Here is what I bring to your project: Full stack engineering: React, Next.js 14/15, Node.js, NestJS, TypeScript, PostgreSQL, MongoDB, Prisma, Supabase, Redis, REST APIs, GraphQL. I have owned monorepos end to end, not just the frontend, not just the deploy pipeline, the whole thing. I can debug a React rendering bug in the morning and reason through a Postgres migration in the afternoon. AI and automation: OpenAI API, Anthropic Claude, LangChain, RAG pipelines with vector retrieval and re-ranking, autonomous agents, multimodal systems, n8n workflow automation, Twilio voice and SMS. I build AI systems that run in production under real load, not just in a notebook. Claude Code and Cursor are open on my machine every day — I use them to move faster, not to ship code I don't understand. Payments and billing: Stripe Connect, subscription billing, metered billing, trial-to-live transitions, webhook idempotency, failed payment recovery, multi-party payouts, proration logic. I have rebuilt broken billing systems mid-flight with active subscribers. This work touches real money and I treat it that way. Backend infrastructure: NestJS microservices, AWS EC2, S3, RDS, Lambda, CloudFront, IAM, Docker, Railway, Vercel, CI/CD pipelines. I have run zero-downtime database migrations on live systems using expand/contract patterns with staged rollbacks not maintenance windows. I work directly with founders, CTOs, and product leads. No agency, no middlemen, no hand-holding required. I read your codebase, understand the architecture, and start contributing in days. I make pragmatic decisions, flag risks early, and own my work until it is stable in production. If you are looking for someone to take a task and disappear I am not that. If you need a senior engineer who thinks about the whole system and shows up when it matters that is exactly what I do. Toronto-based. EST. Available full-time or part-time.

If you want production software that scales without rework: I'm a Full Stack Developer and CTO who builds React and Node.js web applications end to end. ✅ $𝟭𝟲𝟲K+ on a single SaaS build, architected and led from zero ✅ 𝟮𝟱,𝟬𝟬𝟬+ active users on a platform I designed and scaled ✅ 𝟭𝟬+ years in full stack web development across SaaS, FinTech, EdTech, banking, IoT, and AI I'm a business-oriented software engineer and senior full stack developer. I help startups and SMBs turn ideas into production web applications, end to end. Most of my recent work is React and Node.js, with SaaS platforms and AI integrations making up the bulk of it. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗢𝗩𝗘𝗥𝗩𝗜𝗘𝗪 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Full stack developer with 10+ years in web development across SaaS, FinTech, EdTech, banking, IoT, and AI ▸ Core stack: React, Node.js, TypeScript, Next.js, and React Native, with PostgreSQL, MongoDB, and AWS on the infrastructure side ▸ I run a complete delivery team - frontend, backend, mobile, QA, design, and PM - so you get full stack web development, not a solo dev who hands off when things get complex ▸ Every project starts with architecture decisions: I map the system, define the API contracts, and set up a structure your team can maintain after handoff ▸ AI developer experience: LLM integration, voice agents (TTS/STT), NLP, and LangChain in production products ▸ Strong track record of taking products from zero to launch and leading them through scale ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗪𝗛𝗔𝗧 𝗜 𝗗𝗢 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Full stack web development - React, Next.js, Node.js, and TypeScript from frontend to backend ▸ SaaS development - multi-tenant architecture, workspaces, billing, role-based access, and scalable data models ▸ Backend and API development - Node.js, REST APIs, PostgreSQL, MongoDB, and AWS ▸ AI development - LLM integration, AI agents, voice interfaces (TTS/STT), NLP, LangChain, and computer vision ▸ Mobile development - React Native and Flutter apps sharing one backend with the web application ▸ Web application architecture and technical leadership at a CTO level, from system design to API contracts ▸ Legacy refactors and code audits - React cleanup, TypeScript migration, and state management fixes ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Frontend: React, Next.js, TypeScript, JavaScript, Vue.js, HTML5, CSS ▸ Backend: Node.js, REST APIs, PostgreSQL, MongoDB, PHP ▸ Mobile: React Native, Flutter ▸ Cloud and infrastructure: AWS ▸ AI: LLM integration, LangChain, NLP, TTS/STT voice, computer vision ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗦𝗘𝗟𝗘𝗖𝗧𝗘𝗗 𝗪𝗢𝗥𝗞 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ A social media SaaS platform with 25,000+ active users, architected and led from zero on a single build over $166K ▸ A React admin platform for a trading company with 8,000+ monthly users, with live data and administrative controls ▸ The digital onboarding flow for one of the largest retail banks in the UAE ▸ An AI video agent combining LLM, TTS/STT voice, and Unreal Engine for a French tutoring product ▸ Multi-tenant SaaS web applications with tenant-scoped queries, PostgreSQL row-level security, and new-tenant onboarding in under five minutes ▸ IoT dashboards with live occupancy visualization and trend charts, built in React and React Native on a shared Node.js and MongoDB backend ▸ A complex React frontend rebuilt to a clean atomic-design structure with Redux Toolkit and progressive TypeScript coverage ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Architecture first. I map the system, define the API contracts, and set up a maintainable structure before writing feature code. You get clean, typed code, clear communication, and a web application your team can extend after I hand it off. 📩 𝗟𝗘𝗧'𝗦 𝗖𝗢𝗡𝗡𝗘𝗖𝗧 Send me a sentence or two on what you're building. I'll reply the same day with examples from similar work, and we can book a short consultation to scope it. 𝗪𝗮𝗿𝗺 𝗥𝗲𝗴𝗮𝗿𝗱𝘀, Anton