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Is your AI-powered MVP built on a fragile 'vibe-coded' foundation? Are you struggling to scale a prototype that was built with lightning speed but is now plagued by bugs, security holes, and technical debt? I transform brittle AI prototypes into robust, **production-ready applications**. As a senior AI engineer specializing in the **Node.js** and **React** ecosystem, I bridge the gap between rapid, AI-assisted development and the disciplined engineering required for scalable, secure software. But robust software is only half the battle. The other half is making it *work for your business*. I design and implement **intelligent automation workflows** that connect your apps, eliminate manual tasks, and free up your team to focus on high-impact work. Whether you need to rescue a failing project, automate a core business process, or build a scalable MVP from the ground up, I provide the expert oversight to ensure your AI initiatives deliver real, measurable value. **My Core Services:** * **🤖 AI Code Rescue & Remediation:** I conduct deep **AI code audits** to debug, refactor, and secure fragile codebases (especially those built with LangChain.js). I turn unmaintainable prototypes into stable, scalable assets ready for real users. * **⚙️ Intelligent Workflow Automation & Integration:** I design and build digital assembly lines for your business. I offer a full spectrum of automation solutions: * **Rapid Integration:** Using **Zapier, Make.com & n8n** to connect your existing tools and solve immediate process bottlenecks. * **Custom API Development:** Building custom **Node.js** APIs and webhooks to connect proprietary systems or handle complex logic that no-code tools can't. * **AI-Powered Decisions:** Infusing your workflows with intelligence using the **OpenAI API** to triage support tickets, qualify sales leads, or generate content automatically. * **🚀 Custom AI Solution Development:** I architect and build bespoke AI solutions from scratch, from **Custom GPTs** and intelligent **AI Agents** to complex RAG (Retrieval-Augmented Generation) pipelines that leverage your private data. * **👨🏫 AI Engineer & Career Mentorship:** I provide 1-on-1 coaching to help developers navigate the AI landscape, master tools like LangChain.js, and build a successful career in AI engineering and automation. **My Tech Stack:** * **Languages:** Node.js, TypeScript, JavaScript * **Frameworks:** React, Next.js, Express.js, NestJS * **AI / LLM:** LangChain.js, OpenAI API, LlamaIndex, Vector Databases (Pinecone, Qdrant) * **Automation Platforms:** Zapier, Make.com, n8n Ready to move past the prototype phase and build a real business? **Send me a message with your project details or book a session to get started.** --- ### Service Packages * **Package 1: AI Code Audit & Production-Ready Roadmap** * **Description:** Have an AI-generated MVP that feels unstable? I'll perform a comprehensive review of your codebase. You'll receive a detailed report identifying security vulnerabilities, performance bottlenecks, and a concrete, actionable roadmap to make your application **production-ready**. This is the perfect first step to de-risk your project. * **Package 2: Intelligent Automation Workflow** * **Description:** Let's put a core business process on autopilot. We'll map out a high-impact workflow and I'll build a robust automation to solve it. Ideal for **automating lead qualification**, **triaging customer support tickets**, or **streamlining content pipelines** using the best tool for the job—Zapier, Make, or custom Node.js scripts. * **Package 3: Scalable AI MVP Development** * **Description:** Need to build an MVP the *right* way? I'll architect and develop a **scalable MVP** from day one, using professional, spec-driven development practices. We'll build a strong foundation with clean, documented code and a modern stack (Node.js, React) to avoid the technical debt that plagues "vibe-coded" projects.
_Full-Stack Web Application Developer & SaaS/PaaS Product Architect with engineering leadership over distributed, remote, offshore, and onsite teams of front-end coders and back-end developers._
I'm Matei, a full-stack developer with over 10 years of experience, specializing in JavaScript, React, and Node.js. I help developers at all levels overcome challenges, from debugging complex issues to understanding core concepts. My approach is patient and tailored to your needs, ensuring you gain confidence and clarity in your coding journey. Format: - regular (long term) or one-time - for any level (beginner/intermediate/advanced) - personalized take-home tasks & resources - 45-90min sessions, up to 6hrs/day on request - first session of week: 60$/hr, after that 30$/hr Availability: - 4:00-18:00 UTC on workdays - irregular on weekends - last minute or late night sessions on request (email matei@copot.eu) Technologies: - JavaScript: ESNext, NodeJS/Deno, TypeScript, React, Vue, NodeMCU, & more - Front-end Web Dev: HTML5, CSS3, responsive design, PWAs, SPAs, & more - Back-end Web Dev: Express/NextJS APIs, Python, AWS, Docker, SQL, PHP, & more - App Dev: Mac/Linux & Android, Electron, Expo, Python, Stripe, UX, & more - others: always curious about other technologies, e.g. haskell, ruby, WASM, WebGL... = Why me? I'm typically paid €100/hr by top companies, so the lower rate here means you're getting top-tier expertise at an accessible price. I enjoy mentoring because it brings variety and a more collaborative and relaxed dynamic. I have a proven track record of guiding learners from zero experience to landing high-paying jobs. My teaching adapts to your pace and goals — you'll always get honest, actionable advice, including what’s realistic and what’s not. If you're serious about growing your skills or career in tech, I’d be glad to support your journey.
Hi! My name is Ethar, though you'll get away with pronouncing it "Ether". "I love coding!" and despite that intro, I don't like sounding like Donald Trump. Not that you could ever confuse us two really :) I've been a full stack guy for over 20 years and these days, churn out JS, Node, C#, both SQL & NoSql and run on AWS, including developing IoT platforms and Alexa skills. As well as coding help, I also encourage developers and architects to look at problems differently. Committing to effective, clean, value driven solutions is crucial and my experience both in code and business provides a unique slant on why code is written in the first place. I also regularly recruit, so understand the needs of folk trying to break into the industry. Despite over 22 commercial years in the IT industry, holding very senior roles, and running companies and organisations, I still prefer coding. I've spent a lot of time doing complex computing tasks and building circuits, and work across IoT, AI/Machine Learning, High performing computing and use Lean-EA and Lean Startup to help enterprises and startups alike work more effectively. Many of my calls end in YAGNI (You Ain't Gonna Need It), which saves on unnecessary costs elsewhere. Ethics? Plenty. Probably to my own detriment. Projects: Contributed to OSS including JabaJS and a local community tech calendar Alexa Skill OSS project called "WhatGeeks" (accepting PRs if you're interested).
Seasoned software engineer with more than a decade of hands-on international market experience in technology and a strong academic business management background from one of the best business schools in Brazil. Holds multiple technology and business-related certifications, speaks several languages, and loves to bring elegant solutions to complex problems. Technology is supposed to improve people's lives, and I am always studying to enhance my knowledge, overcome new challenges, and do my best in every creation.
Expert - React, React Native, NodeJS, Python, GraphQL, JavaScript, HTML, CSS/SCSS, MongoDB, Postgresql, MySql, Redis, Shell Script, AWS, Azure, Digital Ocean, JSON, PHP, Linux, If you're not fully satisfied with the work, I'll refund you the entire amount
I build mobile apps from scratch, with supporting backends based on GCP/Firebase. Currently, I focus on Dart and Flutter, but I also have over 14 years of experience in JavaScript, 2+ years of React Native, and experience with Node.JS, MongoDB, and Python. A little background I started to code when I was 6, worked with 30+ different programming languages, and built my own called ObjectPath available in Python and Javascript. I hold BSc in computer science. I've been building commercial software since 2004 and was CTO of two startups.
Experienced Senior Software Engineer with 15 years of proven expertise in developing robust and scalable applications using React. Adept at working in diverse environments, ranging from large enterprises to small startups, and across industries such as SaaS, retail, and military. Demonstrated success in leading and contributing to the full software development lifecycle, from concept to deployment. Proficient in crafting efficient and maintainable code, implementing best practices, and collaborating with cross-functional teams to deliver high-quality solutions. Passionate about staying current with industry trends and technologies to drive innovation and excellence in software development.
Developer with nearly a decade worth of experience in full-stack web development and Open Source. Reach out to me with your queries related to: - Angular or React - NodeJS - JavaScript, TypeScript - RxJS - GraphQL - Unit Testing using Karma, Jasmine, Jest, React Testing Library, Enzyme or E2E Testing using Cypress - Git - Firebase - Web Development in general. **Angular Ninja** on *Stack Overflow*, with a reputation score of **35,000+**. I've built scalable and compelling web experiences while working on several digital transformation engagements. Let me help you out building something similar for you as well. 🙂 I am also a mentor, I love teaching programming, especially programming in Angular, React, TypeScript, and JavaScript. I **authored a best-seller course about Angular on Udemy** My **57,000+ Students** can vouch for my mentoring skills. 😇 I have been teaching and mentoring since my college days and I have around ***10 years of experience*** doing just that. I also have a lot of Angular related videos on my YouTube Channel. I write articles about Angular on Dev.to, Indepth.dev, and Medium. You can find me almost anywhere on the web with ***SiddAjmera*** I love empathizing with people to figure out how they see their world, their problems, and then help fill in the gaps. Through mentoring, I accelerate my own constant learning, because there is always something that you want to do better when teaching that knowledge to others!
• Expert full-stack Python & JavaScript developer • Full DevOps: project architecture to production deployment at scale (whether VMs, Docker containers, cloud services, or on-prem) • Outstanding trouble-shooter and "OMG! Everything is on fire! HALP!!" first responder • Strong web app, data structures, data science, and visualization skills • Enjoy complex integration and automation challenges • Love mentoring. Half-price ($60/hr) for all genuine students
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