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I am a full-stack software engineer with over seven years of experience building and managing web applications. Passionate about solving real-world challenges through code, I specialize in developing scalable, efficient, and user-friendly solutions. My expertise spans multiple technologies, and I am committed to continuous learning to stay ahead in the ever-evolving tech landscape. Technical Expertise Frontend Development Proficient in HTML, CSS, JavaScript, TypeScript, and modern frameworks such as React.js, Redux, Next.js, and React Native. Experienced with UI libraries like Bootstrap, Material UI, Tailwind CSS, Semantic UI, and Styled Components. Backend Development Skilled in Node.js, NestJS, Express.js, Python, and Django, designing and implementing powerful backend systems that ensure performance and scalability. Mobile Development Experienced in React Native and Expo, crafting responsive and intuitive mobile applications. Databases Proficient in MongoDB, MySQL, PostgreSQL, and GridDB, ensuring efficient and well-structured data storage solutions. CMS & No-Code Solutions Capable of developing and customizing web solutions using WordPress and Wix. APIs & Development Tools Well-versed in RESTful APIs, GraphQL, authentication (JWT, Passport.js), file handling (Multer, Cloudinary), email services (Nodemailer), testing (Jest), version control (Git, GitHub), and payment gateway integration (Paystack API). Technical Writing Experience Beyond software development, I have over six years of general writing experience, including three years focused on technical content creation. I have collaborated with tech companies such as Cloudinary and Bunzz, producing clear and engaging content on topics like blockchain, video streaming, and software development. My expertise includes writing API documentation, user guides, FAQs, knowledge base articles, and technical blogs, ensuring complex concepts are accessible to diverse audiences. Work Ethic & Collaboration I am a detail-oriented, responsible, and reliable professional with excellent communication and time management skills. I thrive in collaborative environments and am always open to learning and adapting to new challenges. Let’s Connect If you're looking for a skilled full-stack developer or an experienced technical writer, I’d love to collaborate. Feel free to reach out for a discussion—I’m available for chat or video calls and respond promptly to inquiries. Looking forward to building exceptional solutions together!
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.
I am a Senior Software Engineer with 5 years of experience in Flutter development, specializing in cross-platform mobile applications. I have expertise in UI/UX design, state management, and API integration.
Reach out anytime at david@objective.enterprises I am a React and TypeScript engineer with over 10 years experience. I have extensive background with tools like HTML, CSS, JavaScript, NextJS, ExpressJS, PostgreSQL, MongoDB, and Google Firebase. My specialties are absolute beginners, small businesses, and aspiring engineers. I have guided hundreds of students into their first development job. I provide full support to development job-seekers, from mock interviews to career coaching. I can help you fix bugs quickly and fully understand each part of the solution. I offer tutoring services including, bootcamp support, long-term mentoring, and a complete educational experience. I have directed teaching programs and led classroom instruction in fullstack development, professional strategies, and game development. I also started without a formal background in computer science. I know you can cross that gap in an engaging, accessible, and fun way. Everyone that wants to make great software should be able to. I can help you learn to make apps with the features you want and explain exactly how they work. If you want to become a professional software engineer or entrepreneur and are eager to gain the necessary knowledge, I would be honored to help you improve your understanding, code, or career. I can help you assemble and manage a team of developers or coach you through an individual project. I offer pair-programming, consulting, and architectural planning alongside direct management and training. I can help key contributors or entire teams deliver features and understand how their solutions work. I can guide decision makers through complicated technical challenges to confidently determine the best course of action.
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.
🏆 **Top-Rated** | ✅ **100% Client Satisfaction** | 🔥 [**200K+ Subscribers on YouTube**](https://www.youtube.com/@heyflutter) 💼 **6+ Years in Software Development** | 📱 **25+ High-Quality Applications Developed** --- --- Hi there! I help startups, entrepreneurs, and growing businesses **build beautiful, high-performance applications**. Whether you’re launching an MVP or scaling a product, I bring the **technical expertise** and **design-first mindset** to deliver stunning user experiences—on time and on budget. --- --- ### **What I Can Do for You:** ✅ Cross-Platform App Development 👉 Web App Development 🚀 MVP Launch & Rapid Prototyping 🎨 UI/UX Design with Figma 📲 App Store & Play Store Deployment ⚡ Performance Optimization --- --- ### **About Me** I began my career building real-world solutions—customer management systems, e-commerce platforms, and on-demand service mobile apps. Over the past 6+ years, I’ve grown into a results-driven mobile app engineer, delivering seamless, high-performance applications that solve complex business problems and create lasting value for users worldwide. My passion for Development also led me to work with [**HeyFlutter.com**](https://www.youtube.com/@heyflutter), a YouTube channel where I taught app development using Flutter to a community of 200K+ developers.
Senior iOS developer and team lead with 12 years of experience developing and maintaining mobile apps for enterprise clients
Hello! I'm an accomplished **Frontend Engineer** specializing in crafting intuitive, high-performance web applications. With over **5 years of experience**, I excel in **React**, **Next.js**, **TypeScript**, and **UI/UX design**, helping clients bring their visions to life efficiently and effectively.
I started my career as a web developer 12 years ago. I like challenges where I can use my skills to develop outstanding web applications in look, performance, and efficiency. I am specialized in Front-End and back-end web technologies. For more details about technologies I know, see the expertise section below. I can help you with: • New projects or features • Front-End/Back-End development • Mentoring • UX/UI Design • Bug fixes and issue resolving If I missed something you need help with, please drop me a message and I will look for a solution.
I love to solve issues and debug problems that might arise into smaller solutions that make it well clear and more meaningful for anyone. I have vast knowledge with over 6 years of experience in programming with different technologies
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The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance UI design project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance UI design request on Codementor, check out our article.
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We do a comprehensive technical and communications screen of all UI design developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing UI design developers’ user satisfaction rates.
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