More than 10 years of experience and Expert Ruby Developer Here. Developed various web projects in Ruby. Followed best practices to develop Secure, Scalable, and Reliable Web Applications. Hands-on Skill set: ✅ Extensive knowledge of web application architecture. ✅ Docker, Docker Compose, and Kubernetes ✅ AWS Lambda, EC2, ECS, S3, RDMS, ✅ DigitalOcean and Heroku Deployment. ✅ Comprehensive knowledge of Web and Mobile backend APIs, particularly Sinatra, GrapeAPI and Rails framework. ✅ Authentication endpoints using Devise, Devise-JWT, OmniAuth, JWT Token ✅ Databases PostgreSQL, MySQL, MongoDB ✅ Designing REST APIs for both web and mobile applications. ✅ Sidekiq, Delayed Job for long-running background jobs. ✅ RabbitMQ for message broking. ✅ Redis for in-memory caching, database caching, and message broking ✅ Designing scalable backends using microservices architecture ✅ NGINX, unicorn, Apache ✅ Reactjs, HTML, CSS, Bootstrap, ERB, HAML, JQuery I look forward to the opportunity to contribute to your projects. Prakash

I help businesses turn ideas into scalable, revenue-generating products. With 8+ years of experience, I’ve built and shipped production-grade applications for SaaS platforms, e-commerce businesses, and enterprise systems across industries like healthcare, fintech, and digital products. I focus on writing clean, maintainable code, designing scalable architectures, and delivering solutions that actually solve business problems — not just technical ones. 🔧 Tech Stack Frontend: React.js, Next.js, Vue.js, TypeScript, Tailwind CSS, React Native Backend: PHP (Laravel), Node.js, Ruby on Rails, Python (Django, FastAPI) Databases: MySQL, PostgreSQL, MongoDB DevOps & Cloud: AWS, Docker, CI/CD Pipelines, Git 🚀 What I Can Help You With: Building SaaS platforms from scratch Scaling existing applications API development & integrations (Stripe, PayPal, etc.) Performance optimization Cloud infrastructure & deployments If you're looking for someone who can own the development process and deliver real results, let’s talk. 👉 Click “Invite to Job” and share your idea — I’ll help you turn it into a working product.

Dreamy, proactive, hardworking, self-taught and with the dream of becoming a polyglot programmer. I have a fascination for learning. I have over 9 years of experience in various areas in Web Development. I worked on projects for customers located in Colombia, Canada, Puerto Rico, Australia and the United States. I worked in this highlight projects: - tecdonor.com platform for volunteers. - oyelomio.com platform for musical talent in Puerto Rico. - vancalab.com Web page of courses for national test in Colombia. - purina.com Working at Ansira company, developing new features for a coupon platform APIs I've used: - OpenAI - Mailgun - Mailchimp - Stripe - ePayco - Github - Gmail - Google Maps My skills in Backend: - Laravel - PHP - Rails (Ruby) - Python My skills in Frontend: - Html5 - Css3 - Javascript - Jquery - React - Vue My skills in Databases: - Postgresql - Mysql. My skills in Web servers: - Apache - Nginx My skills in OS Servers: - Ubuntu - Centos My skills in DevOps: - Digital Ocean Servers/databases and spaces - AWS I will be happy to work with you

🚀 Welcome to my Upwork profile! 🚀 Hi! I'm an expert full-stack developer with plenty of expertise in modern web technologies. I use my expertise in Ruby, Ruby on Rails, React, and Python to build dynamic, scalable, and user-friendly web applications. While expert in these core languages, I have additional experience in frameworks like Next.js, Express.js and Django depending on project needs. My Services: 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: I craft beautiful and responsive user interfaces using ReactJS, make sure a smooth user experience across all devices. 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: I build robust and efficient APIs using Ruby on Rails and Python, enabling smooth data flow and server-side logic. 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: I smoothly integrate frontend and backend components, delivering a cohesive and high-performing application. Why Choose Me? 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐌𝐚𝐬𝐭𝐞𝐫𝐲: I handle both frontend and backend development, providing a single point of contact for your project. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐀𝐠𝐧𝐨𝐬𝐭𝐢𝐜: I adapt my skillset to your project needs, using the most suitable technologies (React, Ruby, Ruby on Rails, Python). 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞-𝐃𝐫𝐢𝐯𝐞𝐧: I prioritize clean code, efficient architecture, and using solutions to make sure a fast and reliable user experience. 𝐂𝐥𝐞𝐚𝐫 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧: I believe in open communication and work collaboratively with clients to translate their vision into reality. Ready to build your next game-changing web application? Let's discuss your project! 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Full-Stack Developer, React, Ruby, Python, Ruby on Rails, Web Development, APIs, User Interface, User Experience, Web Development, APIs, User Interface, User Experience

How to turn what it seems to be impossible on your project into nice, clean, and functional code by hiring Deyvid Arauz the heroic soldier and biggest commander and front man of the new wave of Top-Quality developers of Latin America. Dear potential client and future business associate, I would appreciate a couple of minutes of your time and attention to accompany me with the reading of these lines in a small journey through my professional profile, goals, aspirations, personal standards and characteristics that represent me as scholar and lover of the universe of web development, in order to help you get to know me as an engineer and developer, this being a selection tool with which you can make the best decision for your project to be successful through my services and added values to your assignment. Whenever I start a new assignment or project, I first focus on knowing its objective, the scope it will have, the requirements that the client has, with these ideas already clear, I begin the work of transforming the client's abstract ideas into a most viable conception for development without abandoning the essence of the client's idea and pursuing as the main goal the purpose that the owner of the project wants to obtain, always taking care of the profitability of the assignment. Once the coding plan is clear, I design a project planning route so that the work carried out has a successive and understandable order for anyone, with or without knowledge of web development or previous experience in the field. Time management to meet expectations and deliveries with a deadline is of the utmost importance to maintainthe expected international standards, which is why I always make a task execution plan, dividing them into priorities adjusted to the different requested delivery dates. by clients, in addition to dividing the tasks into small subtasks that allow me to have a visual of more organized progress. If it is necessary in some very particular aspect of the needs of our clients, I have no problem with creating the code from scratch and totally customized to the client's needs. Clients can expect from me the complete execution of their primary ideas, the ability to take an abstract idea and turn it into a reality, flashes of idea owners' mental insights into marketable functionality. United with the common thread of a formal, polite, respectful, constant, and continuous relationship to be aware of the changing needs of our clients, I believe that constant communication with the client and with all the members of the team are key to success in customer management and is key to maintaining business relationships. Thank you for staying with me until this advanced distance in our journey, at this moment I will take a few more moments of your time to tell you about my professional experience in the world of development, all my participation. 1-Lolo-car is a vehicle rental service where as a user you have the possibility of making your personal vehicle available to be rented or to be able to rent the vehicle of another user, it has an online payment service through the MercadoPago platform, implements validation of the user profile through a service called Metamap, which is responsible for validating the identity of the users through some data that they provide to the application, once the users are verified they have the possibility of leasing the vehicles of other users, see the earnings 2. React To-Do App. It is an application whose main function is to provide us with control of our daily activities, through the intelligent organization of the task list controlled by a set of functionalities designed with tools and time management principles in order to obtain a better use of it, within some of these functionalities: we have the ability to visualize our pending tasks, they can be grouped by priorities and make subcategories based on other priorities within the groups, it is a simple human empowerment tool in relation to the use of time. The React To-Do App also has a Quotes API. This project is an api that has phrases of success and personal development from different experts in the field of empowerment of thought, productivity and success in business, with the main purpose of being used freely to be able to display a new phrase every day. For more technical details about my experience, please check my portfolio as well! Experience is a good that is obtained with years of practice and repetition of an action, the accelerated learning capacity and adaptability with which I was endowed from a very early age allow me to have extremely small learning curves that to a certain extent compensate for the lack of experience. I know that at this point, you are more ready to make the right decision for your project. These lines have the sole purpose of facilitating your decision and helping you to be successful through me in your project.

You've found a sound technical architect / backend developer skilled with AI automations, LLM models, Data DevOps and Cloud Ops. I am the guy who works around business agility and use-case development. Someone who not only contributes with testable codes, scalable structure but also contributes in validating approaches and MVPs / MBIs. I am a multi-stack lead Backend developer (Ruby on Rails / Laravel / Python / NodeJS) with more than 15 years of exhaustive experience building complex and large / scalable products. Complex most structures ranging from Enterprise B2B / B2C solutions including Open Source and custom coded solutions for almost all industries. For the past 10 years I've led various teams across the globe. I've worked with almost every API on the web, I've worked with (almost) every E-commerce solution, LMS / E-Learning Platform, every single IDX/ MLS Property Feed, every CRM and social platform APIs and code management systems. I am pretty versed in DevOPs for GCP and AWS. I love taking on complex problems because that's what excites me and keeps me moving. It is my diverse experience that allows me to code faster and code it right and I religiously believe in testable codes. I'm available between 6am to 5pm US Eastern time as those are my usual work hours.

Specialized Discourse developer with 5+ years of experience in plugins, themes, migrations, SSO, and custom integrations. I help businesses build, customize, migrate, and maintain Discourse communities — from initial setup to advanced platform development. What I Can Help You With: Custom Discourse plugin development Theme & theme component development Advanced Discourse customizations Community platform migrations to Discourse SSO implementation API & third-party integrations AI integrations & automation Docker setup & deployment Performance optimization Upgrades & maintenance Community Migration Expertise: I can migrate virtually any community platform to Discourse while preserving users, posts, categories, permissions, and SEO structure. Migration experience includes Invision Community (IPB) XenForo phpBB vBulletin Vanilla Forums wpForo bbPress Flarum NodeBB Custom-built platforms I also handle URL redirect preservation Data cleanup & restructuring Plugin compatibility Theme recreation Post-migration optimization Open Source Contributions: Active contributor to the Discourse ecosystem with contributions to Discourse core Theme components User support Feature improvements Client Feedback: "I highly recommend Jahan to anyone facing challenges in transferring forums from IPB 4.x — your expertise and support are truly invaluable." "I've dealt with numerous developers over the years and Jahan was by far the best I've ever worked with. Completed the project quickly and at an excellent price. A+++++++++" "Communication was on equal terms and everything was super relaxed. Definitely recommendable!" If you need a dedicated Discourse specialist for development, migration, integrations, or long-term maintenance, I’d be happy to help.

Upwork Skill Certified - Ruby Preferred Stack: React + Rails + TailwindCSS Full stack software developer Languages: Ruby, Javascript, C, Python Frontend: React, Redux, HTML, CSS, TailwindCSS, Backend: Ruby on Rails, FastAPI Databases: PostgreSQL, Redis Testing: RSpec Other: Git

I'm an enthusiast software engineer. Strong in design and integration problem-solving skills. Expert in Ruby on Rails, Node.js, React.js with database analysis and design. Skilled in developing business plans, requirements specifications, user documentation and architectural systems research. Strong written and verbal communications.. Services Offered: - Backend server development using Ruby on Rails | Node JS. - Frontend development with React/Next JS. Completed Projects domains: - Healthcare - Fintech - Interior designs - Fitness industry - Ecommerce - Real estate - Automobile industry I take immense pride in delivering innovative solutions that exceed client expectations. I am committed to staying up-to-date with the latest advancements in technology, which allows me to offer cutting-edge and future-proof products and services.

7+ Years of AI & Machine Learning Experience | AI Developer | Data Scientist | Generative AI Expert | LLM Engineer $1.2M+ Revenue Generated for Clients Through AI-Powered Solutions I help startups, SaaS companies, and enterprises build AI systems that increase revenue, automate workflows, and turn data into business growth. Over the past 7+ years, I’ve worked with Fortune 25 companies and fast-growing startups to develop scalable AI products, predictive analytics systems, LLM applications, and intelligent automation solutions serving 10M+ users. If your business has data but isn’t leveraging AI for growth, I can help. ━━━━━━━━━━━━━━━━━━━━ AI & MACHINE LEARNING SERVICES ━━━━━━━━━━━━━━━━━━━━ AI Development & Machine Learning • Custom Machine Learning Models • Predictive Analytics & Forecasting • Deep Learning Solutions • Classification & Regression Models • Fraud Detection Systems • Customer Segmentation • Recommendation Engines • AI Model Deployment & Optimization Generative AI & LLM Development • OpenAI GPT-4 Integration • Claude API & Gemini AI Integration • AI Chatbot Development • AI Agents & Workflow Automation • RAG Pipelines using LangChain & LlamaIndex • AI Assistants for SaaS & Business Operations • Prompt Engineering & Fine-Tuning Data Science & Analytics • Data Analysis & Visualization • Predictive Modeling • Business Intelligence Dashboards • ETL Pipelines • Feature Engineering • Data Warehousing • Real-Time Analytics Systems Natural Language Processing (NLP) • Sentiment Analysis • Text Classification • Named Entity Recognition (NER) • AI Document Processing • OCR & Intelligent Automation Computer Vision • Image Classification • Object Detection • OCR Systems • AI Vision Applications ━━━━━━━━━━━━━━━━━━━━ TECH STACK ━━━━━━━━━━━━━━━━━━━━ Languages: Python, SQL, R AI/ML Frameworks: TensorFlow, PyTorch, Scikit-learn, XGBoost, Hugging Face LLM & Generative AI: OpenAI GPT, LangChain, LlamaIndex, Claude API, Gemini AI Big Data & Data Engineering: Apache Spark, Hadoop, Kafka Cloud & MLOps: AWS SageMaker, GCP Vertex AI, Azure ML, Docker, Kubernetes Databases: PostgreSQL, MySQL, MongoDB Visualization: Power BI, Tableau, Plotly, Matplotlib ━━━━━━━━━━━━━━━━━━━━ RESULTS & ACHIEVEMENTS ━━━━━━━━━━━━━━━━━━━━ • Generated $1.2M+ revenue through AI-driven solutions • Increased client revenue by 8%–32% using predictive analytics • Built ML systems supporting 10M+ active users • Delivered 50+ AI, ML, and Data Science projects • Worked with Fortune 25 companies on enterprise AI initiatives ━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━ Results-Focused AI Solutions I build AI systems that improve business KPIs, not just model accuracy. End-to-End AI Development From data collection to deployment and scaling, I handle the complete AI lifecycle. Clear Communication No technical confusion. I explain everything clearly and keep projects transparent. Fast Execution Startup speed with enterprise-level quality and scalability. ━━━━━━━━━━━━━━━━━━━━ I CAN HELP YOU WITH ━━━━━━━━━━━━━━━━━━━━ • AI Chatbot Development • GPT-4 & Generative AI Integration • Machine Learning Model Development • Predictive Analytics & Forecasting • AI Automation Systems • NLP & Text Analysis • Recommendation Systems • Data Science & Business Intelligence • Computer Vision Applications • End-to-End AI Product Development ━━━━━━━━━━━━━━━━━━━━ Ready to build AI solutions that generate real business impact? Send me a message with your project details, and I’ll show you how we can turn your data into a competitive advantage.