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Upwork Profile: [https://www.upwork.com/freelancers/~017c52f0d690bf476e](https://www.upwork.com/freelancers/~017c52f0d690bf476e) Hi I'm a web developer with **7+ years of experience**. I have a proven track record in several industries such as web3, AI, eCommerce, automation, and IoT. I have a strong focus on creating great user experiences and I'm known for my ability to deliver clean, scalable, and maintainable code. I follow a very simple yet effective code of conduct: I always listen to my clients before making decisions and value their time by being upfront about my skills and competencies. I'm fluent in english speaking and writing, I **will come on Zoom/Meet without any problems or hesitations for demos and progress updates.** ### ✅ MY SKILLS ◆ I have worked with MERN stack for frontend and backend development for more than 7 years to build high performance IoT backend as a service. I have 4+ years of experience in IoT and 2+ years in LLM. ◆ I've worked with ReactJS, Javascript, HTML5, CSS, Bootstrap, TailwindCSS for Frontend development ◆ I've worked with PostgreSQL, MySQL, MongoDB, Redis, for the database caching and queuing. ◆ I have integrated different payment gateways such as Stripe, [authorize.net](http://authorize.net/), GooglePay, Apple Pay, and many others. ◆ I've deployed applications on Digital Ocean, Heroku, Google Cloud servers, EC2, and EKS. ◆ I've Integrated lots of 3rd party APIs like Google Maps, LinkedIn, DocuSign, Youtube, Facebook, X (Twitter), and many more. I've deep knowledge to work with the latest technologies. ◆ I have worked with web3 including CoinGecko, DexTools, DexScreener, Covalent, BitQuery, and more. ◆ I have built social and crypto bots for X, Telegram, Whatsapp, Slack, and Discord. ◆ I've broken monoliths architectures into microservices using Redis or Kafka at the core, and Kubernetes to manage the cluster. ### ✅ MY TECK STACK **◆ Frontend:** React, Tailwind, Next, Radix UI, Shadcn/ui. **◆ Backend:** Express.js, MongoDB, Node.js, Nest.js, Postgres, Redis. **◆ No Code:** Webflow, Retool, Graphana. **◆ LLM:** OpenAI GPT, GPT4o, Claude, Meta Llama, Google Vertex, ChromaDB. PineconeDB, LangChain, AI agents, prompt engineering **◆ DevOps (CI/CD):** Kubernetes, Cloud build, Nginx, GitHub Actions. Vercel **◆ Documentation:** Docusaurus, Nextra. **◆ Protocols:** REST, WebSockets, GraphQL, OAuth, OAuth2.0. **◆ Analytics:** PostHog, Google Analytics, Mixpanel, Moesif, June. I'm one of the makers of [grandeur.dev](https://grandeur.dev/), an IoT platform that packs away the complexities of IoT development and gives engineers a way to build IoT apps, connect real devices, and monitor/control them in real time. It has builtin auth, connectivity, storage, drag and drop app building, over-the-air software upgrades, APIs, and more. It's an extremely ambitious project, AND MY BRAINCHILD and you can access it at [console.grandeur.dev](https://console.grandeur.dev/). ### ✅ FIVE REASONS WHY YOU SHOULD CHOOSE ME ◆ I will communicate frequently and do project check-ins so you know the progress of my work every step of the way. ◆ I'll work till the end and after to ensure that your site is not just developed but lasts the test of time. ◆ I will never have you feel that I am burning through your time or cash. ◆ I've been able to produce sites with extremely small deadlines. ◆ And yes, I can do a quick sample work according to your need. I'm always interested in connecting with new people and exploring new opportunities. Feel free to reach out to me for any queries even if you don't have any formal requirements yet! You can come to me with a problem and I'll help you develop solutions. Let's get in touch!
Experienced **Senior Backend Engineer** with 10+ years of experience in **Java (Spring Boot)** and **5+ years in Python AI/ML systems**, delivering production-grade APIs, microservices, and LLM integrations. Specializes in **FastAPI**, **LangChain**, **OpenAI**, and **vector database pipelines**. Strong background in building secure, scalable platforms that integrate AI models, handle real-time data processing, and serve global users.
Highly experienced Java Software Engineer with over 9 years of expertise in designing and implementing enterprise-level identity and access management (IAM) systems. Proven track record of leading complex software projects, from concept to deployment, utilizing a deep knowledge of distributed systems, microservices, and secure authentication protocols. Adept at managing cross-functional teams, conducting detailed code reviews, and driving continuous improvement in software development practices. Passionate about solving challenging technical problems and delivering scalable, high-quality software solutions. Currently focused on advancing my career in software engineering and project management.
I’m a passionate C# software engineer with nearly 12 years of experience building robust, maintainable applications using .NET, WPF, and modern development practices. I specialize in guiding developers through complex problems and teaching best practices for scalable, high-quality code. As a mentor, I bring a collaborative approach, offering clear explanations and practical techniques like 'characterization tests' to navigate and improve unfamiliar codebases safely. My goal is to empower mentees to solve challenges confidently and grow their technical skills. I see Codementor as the perfect platform to give back to the developer community while building meaningful connections. I’m open to 1-on-1 mentoring and code reviews.
You can understand it! Whether you're catching up in a coding bootcamp, or nailing a bug — reach me in the chat and we'll figure it out. I know you can, because I see it everyday! I enjoy explaining basics patiently, or move to advanced topics in my expertise anytime. Got a project idea? I can help you code it during a session or multiple sessions! If you feel overwhelmed about any of these — Javascript, CSS, React, Node, Firebase, web technologies in general — or actually just want someone to be around while you are figuring them out and point you in the right direction, just let me know. *BUILD & LEARN — one-on-one pair-coding learning experience with a mentor* Web development is my life, since 2002. For over decade I'm excited to work on the full stack of web sites and applications. With more focus on Front-end and Javascript full stack in recent years. **Practice Javascript** Javascript is probably the most versatile programming language that anyone can start even without installing any specialized software, as the developer tools are built into every browser nowadays. Your browser is a great playground to learn and understand Javascript, HTML and CSS, while also possibly making your experience with the web better. Install Node.js and enable the power of using the same language to access files on your computer and automate your workflow. Node comes with NPM - access to a repository of plethora of Javascript utilities for any task. **Practice HTML & CSS** CSS can be hard sometimes, but it's well defined with great tools to understand it built into the browser. Skills of building UI with HTML & CSS can now be reused not only for websites and web apps, but also mobile and desktop apps. And also your TV, your fridge and your nearby ATM. **Practice React** React provides building blocks to create components, where every component has UI defined with HTML & CSS, with Javascript logic attached to it. Scaling UI for a web app, mobile or desktop app becomes a no-brainer. Practice building on the web platform with me, I'll watch you 👀 and make your learning faster. **Let me hold your hand** (virtually) I know what it's like - to know how to do it, but still feel burnt out. Too easy to fall into an infinite loop of procrastination. Just schedule a session and let me be your focus buddy. I've seen work done in no time after a wait too long. ---- **How to call**: let me know in the chat what you need help or tutoring with. **Before the call**: message me, I may be available immediately, but most likely not—it's generally better to schedule a session, ask me for my availability (after telling me which technologies you need help with). **During the call**: In the codementor session room press "set up zoom", it will launch Zoom where you can share your screen. **If you messaged me and I didn't answer**: Don't be discouraged! There's a high chance I missed your message — feel free to message me again! Sorry, sorry, sorry! But do give a little bit of intro, so it's easier for me to answer whether I can help or not. ---- I only provide help during online sessions where you can share your screen and discuss the issues. ---- My focus: ● **HTML, CSS ● Javascript**, ES6 ● **⚛ React**, JSX, React-Router, Redux, Material-UI ● **Firebase for Web**: Database, Auth, Storage, Hosting, Functions ● jQuery, Backbone, Marionette ● AJAX, Axios, fetch ● async ● Git, Github ● npm, yarn ● Chrome DevTools ● **CSS Frameworks**, Tailwind, Bootstrap, SASS ● Handlebars ● **NodeJS**, ExpressJS, MongoDB ● Webpack, Browserify, Gulp, Bower, Require.js ● Jekyll ● Feel free to message me in the chat anytime — just tell me which topics you need help with — and we'll go from there. ---------------✁------------------------- If you are beginning your journey into web-development and need a longer session to go through the basics of technologies and tools listed below, then I am happy to offer my encouragement with about 20% off my usual rate. * Only applies to **longer sessions** of 1 hour and more. * Only applies to **practice sessions**, where you need help with fundamentals of the technologies listed below. Welcome to discuss or learn these technologies with me. * **Does not apply to commercial** work. The discount doesn't always get applied automatically, so feel free to ask and remind me about it after a session. To get the discount: - **Let me know** that you are a beginner, need a longer session and that a discount would help - **Be nice**, positive and respectful Please only contact me if you actually need help understanding the following technologies, and not just have someone complete your student homework on your behalf! I'm happy to offer a lower rate to guide you through the basics of these technologies: - HTML, CSS, Javascript: building web-pages and understanding all the concepts to make them work beautifully and efficiently - Javascript basics, intermediate and advanced - Javascript libraries and frameworks: jQuery, Backbone, React - Firebase for Web: Database, Auth, Storage, Hosting, Functions - Backend Javascript with Node.js and Express.js - CSS Frameworks: Tailwind, Bootstrap - CSS Tooling: SASS, Stylus - Web-dev tools basics: npm, browserify, webpack - Web-dev concepts, such as AJAX - Command line basics and Git - Basics of hosting your static website for free - Using template engines such as Handlebars - Creating website with Jekyll and host on Github - Basics of automated Javascript testing ---------------✃------------------------- Over the years, I have: - Developed hundreds of HTML/CSS/JS Mockups (since 2002) - Wrote several large Backbone.js/Marionette.js javascript applications, for web and mobile (since 2010) - Developed Node.js/MongoDB applications - Developed dozens of CakePHP/MySQL applications (2006-2010) - Installed dozens of Wordpress websites - Worked with large data sets and developed social network-like websites - Developed projects with Laravel, Zend Framework - Developed several popular extensions for Textpattern CMS (2006) - Got experience with video and audio production, screen recording I am keen on advanced web-development tools for front-end and back-end development. Git, Chrome DevTools NPM, Browserify, Grunt, Gulp, Bower, Require.js I feel comfortable working on both small and large websites. Jekyll, Bootstrap jQuery, AJAX Preprocessors: SASS, Stylus, CoffeeScript Done a lot of projects in PHP earlier, but switched to more javascript work in recent years. I am a mac guy, and I manage Debian virtual servers for private projects. $$ Money-back guaranteed – just let me know if you're not happy and your money stay with you. Feeling unproductive? Schedule a session for some quality focus time.
Finally started sharing my bash knowledge (sadly in Spanish): youtube.com/@chanchuscript Master in Computer Science. 25+ years as dev and teacher elementary to university. Java, PHP, Python, Ruby, C, C++, Bash, JavaScript, and much more. QA oriented. Always become the de-facto mentor for juniors in all my jobs. known for my ability to clarify with analogies. I've been a teacher assistant on Algorithms and Data Structures at University of Buenos Aires. Will find a trade-off between teaching the fundamentals and getting work done. It is very useful that you send your project description and your current code and what exactly is blocking you. This will help us get things done faster.
Builder, and Tinkerer with experience working in AI, Robotics, Finance, and Logistics. I specialize in converting problems to integrated solutions that go beyond demos of cool technology
I'm a senior frontend engineer with over a decade of experience building robust, high-quality web and mobile applications. I specialize in React and JavaScript, with deep expertise in React Native, GraphQL, and scalable architecture. My broad technical background — from SDK development to cross-platform apps — allows me to deliver fast without compromising on quality. Over the years, I’ve led both projects and teams, taking products from concept to production in fast-paced, high-stakes environments. I’ve built entire platforms solo, mentored other developers, and collaborated with cross-functional teams across time zones. Whether I’m architecting a system, optimizing performance, or shipping pixel-perfect UIs, I focus on creating clean, maintainable code that drives real business value. **TL;DR:** I’m a highly dependable engineer who ships fast, leads effectively, and builds with excellence.
Hey there! I'm Scott Engemann and I'm so glad you're taking some time to learn more about me! From a young age I've always been fascinated by building things with legos (that may or may not be true to this day). Having a thought in your head and being able to bring that idea out into the physical world still excites me. I've found that front-end web development was the perfect way to express this love that I have. Over the years of experience and witnessing the evolution of the web, I have grown with a more sophisticated desire to bring the best experience to users. To paraphrase Liam Neeson from the movie "Taken" - "I obtained a very particular set of skills, skills I have acquired over a very long career. Skills that make me a dream for people like you to work with." - Angular: I have worked with every version of Angular from the glory days of AngularJS (think of this as version 1) all the way to the latest release at this time of Angular 19 - MEAN Stack Development: I love that I'm able to develop both front-end and back-end systems to create web applications. MEAN stack has really helped me venture into writing RESTful APIs - Data Visualization: With the help of HighCharts, I discovered that DATA IS BEAUTIFUL... Or at least, it can be. It's astonishing to see something as simple a numbers be translated into eye-pleasing charts and elegant graphs to better explain the meaning of the 1's and 0's.
I am a seasoned engineering leader with nearly three decades of experience delivering innovative, scalable software solutions and managing large-scale projects. I have led teams of up to 35 engineers, fostering collaboration, mentoring talent, and aligning technical roadmaps with organizational goals. My expertise includes overseeing Azure cloud architecture, driving modernization efforts, and transforming legacy systems into efficient, modular microservices. Recognized for empathetic and forward-thinking leadership, I inspire teams to push boundaries, maintain a culture of excellence, and deliver impactful results that elevate organizational success.
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