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Hire the best JavaScript Developers in Madrid, ES

Check out JavaScript Developers in Madrid, ES with the skills you need for your next job.
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Clients rate JavaScript developers
Rating is 4.8 out of 5.
4.8/5
based on 339 client reviews
  • $50 hourly

    • 5.0/5
    • (26 jobs)
    With expertise in JavaScript, TypeScript, and Python, I excel in backend frameworks like Flask, FastAPI, Express.js, and Fastify. I’m also a Certified AWS Solution Architect, skilled in AWS services like Lambda, S3, and DynamoDB to create scalable and secure cloud solutions. 💻 Core Skills: 🔹 Backend Development: JavaScript, TypeScript, Python, Flask, FastAPI, Django, Django-Rest 🔹 Cloud Solutions: AWS 🔹 Databases: PostgreSQL, MySQL, MongoDB, Redis 🔹 Containerization: Docker for smooth deployments and kubernetes 🔹 Frontend Mastery: Next.js, React, Vue, Nuxt, Astro, Tailwind CSS 🔹IaC: aws-cdk, terraform, pulumi, sls I’m passionate about crafting beautiful, high-performance websites that integrate frontend and backend seamlessly. Let’s discuss how I can bring your project to life! 💬✨
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Python
    React
    Solution Architecture
    AWS Amplify
    Amazon S3
    Data Scraping
    PostgreSQL
    Web Crawling
    API
    AWS Lambda
    AWS AppSync
    Node.js
    API Development
    Serverless Stack
  • $40 hourly

    • 5.0/5
    • (2 jobs)
    🎖️ 15+ Years of Experience in Full Stack Development 💯 300 + Projects completed with client and company 🕒 Less than 1 Hour Response Time I have over 15 years of experience in Software Engineering and now I am working as a Full Stack Developer. 𝐌𝐲 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 𝐭𝐨 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 From a young age, I loved computer science. My parents, however, wanted me to work in the medical field. Despite their wishes, I followed my passion and decided to study computer science. I went to university and learned everything I could about programming and technology. After graduating, I started my career as an Android developer. As I gained more experience, I expanded my skills and became a full-stack developer, working on both front-end and back-end projects. Today, I am a successful software engineer. My parents now understand and support my choice. They see how much I enjoy my work and how it has brought me success and happiness. My journey from a young computer enthusiast to a skilled software engineer shows the importance of following your dreams. It wasn't always easy, but staying true to myself and working hard paid off in the end. My story proves that pursuing your passion can lead to a fulfilling and rewarding career. 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬/𝐀𝐏𝐈𝐬 Node.js, React, REST APIs, REST APIs, jQuery, React Router, MobX, Facebook API, Antd, Sidekiq, Puppeteer, Playwright, FedEx API, SendGrid API, Stripe API 𝐓𝐨𝐨𝐥𝐬 Git, Terminal, Redux, NPM, Prisma, Helm, Microsoft Excel, Webpack, Babel, Stylelint, Docker Compose, Make, TeamCity, Slack, Zoom, Ansible, Btcd 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 CSS, JavaScript, GraphQL, TypeScript, HTML, Python, Ruby, TypeScript, Java, C, Go, C#, SQL, HTML5, Bash 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 Next.js, Vue.js, React Native, Redux, .NET, Angular, Jest, Bootstrap, Hadoop, tRPC, Tailwind CSS, Express.js, Django, Cuba, Cypress 𝐒𝐭𝐨𝐫𝐚𝐠𝐞 RDBMS, Relational Databases, MongoDB, PostgreSQL, MySQL 𝐏𝐚𝐫𝐚𝐝𝐢𝐠𝐦𝐬 Event-driven Architecture, Agile, CRUD, Testing, Object-oriented Programming (OOP), REST, Microservices, Continuous Integration (CI), Model View Controller (MVC), Automation, 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Heroku, Ubuntu, MacOS, Oracle, Vercel, SalesforceDocker, Kubernetes, iOS, Android, Amazon Web Services (AWS) 𝐎𝐭𝐡𝐞𝐫 Leadership, APIs, CI/CD Pipelines, Styled-components, Web Scraping, Conflict Resolution, ESLint, APIs, Single-page Applications (SPA), Full-stack, Full-stack Development, Economics, Computer Science, Servers, Responsive UI, User Interface (UI), User Experience (UX), CSS Modules, Entertainment & Leisure, Storybook, Authentication, Algorithms, Data Structures, Graphs, Movie Magic, Scenechronize, Drafting, Code Review, Documentation, Containers, Container Orchestration, Orchestration, Back-end, Bitcoin, Peer-to-peer Networking, High-availability Clusters, Docusaurus, UI Animation, Bitcoind, Infrastructure as Code (IaC), Mobile-first Design, Code Generators, WebSockets, Technical Hiring, Interviewing, AWS DevOps, OpenAI GPT-3 API,
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Live Stream Customization
    WebRTC
    PostgreSQL
    MySQL
    Java
    API Integration
    Node.js
    Web Scraping
    Automation
    Bot Development
    Python
    Web Development
  • $75 hourly

    • 4.6/5
    • (61 jobs)
    With over 14 years in full-stack development and a strong design background, the focus is on building lean, scalable MVPs and automating workflows that drive growth. As the founder of a design agency and an insure-tech startup, along with an MBA from a top business school, I bring a unique blend of technical, strategic, and aesthetic insight. Comfortable working with international clients, with near-fluent comprehension in English, Russian, French, and Spanish, to deliver solutions that align with business goals. Specialties I take a balanced approach to development, favoring custom code for flexibility while leveraging low-code solutions where they make sense. Rather than ‘drinking the Kool-Aid’ of any one approach, I choose tools based on each project’s specific needs, avoiding one-size-fits-all solutions. My goal is to ensure the best fit for scalability and minimal vendor lock-in. Skills & Expertise - Frontend: React ( Next), Modern Static Website Generators (Hugo, 11ty, Jekyll), UX/UI Design (Figma, Affinity) - Backend: Python (Fastapi, Serverless, Automation), NodeJS (NestJS, Golang - Automation: Airtable, Zapier, Make.com, Pipedream - Databases: MongoDB, Postgres, DynamoDB,, - Cloud & Devops: GCP, AWS, CI/CD Experience & Industries I’ve worked across diverse industries, from tech startups to nonprofits building custom solutions for unique business needs. AI Video Generation SaaS: - Developed frontend and microservices for scalable, automated video generation. Media Buying Portal: Designed and developed a portal tailored for ad agencies and ecommerce vendors - Survey and Focus Group Automation: Built a robust backend and management panel for complex survey distribution and focus group management - Custom SEO Tools: Implemented Webvitals optimizations and structured data (JSON-LD) for improved search visibility - Automation Consulting for NGOs: Streamlined NGO operations through low-code automation and workflow improvements Why Work With Me Clients choose me for my balance of design sensibility and engineering expertise, a proactive approach, and my commitment to delivering scalable, user-centered solutions. My entrepreneurial background means I understand the needs of growing businesses and focus on creating efficient systems that last, able to evolve and be maintained. Let’s connect if you’re seeking a developer who combines technical expertise with a holistic view of business.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Database Design
    Hugo
    AWS Lambda
    Serverless Stack
    API Integration
    Responsive Design
    Automation
    Management Skills
    Web Design
    Airtable
    Python
    Zapier
  • $25 hourly

    • 4.9/5
    • (65 jobs)
    ► 4 years of experience in Shopify, Shopify App, Shopify Plus, Liquid Coding, Shopify custom apps development, and API development. ►Completed 50 projects with nice feedback and review on Upwork. My Work experience includes: ► Shopify | Shopify 2.0 | Shopify App | Shopify Plus | Liquid Code. ► Shopify Store Creation from Scratch. ►Shopify App Creation from Scratch using Laravel, CodeIgniter Framework and Integrated Shopify Store. ► Increase website performance. ► Bold, Recharge subscriptions. ► Integration of custom payment gateway in Shopify store. ► Skadate | Oxwall. ► Custom checkout integration in Shopify ► QuickBooks | Zapier | Paypal IPN. ► API Integration and Development. My experience includes collaborating with small to medium sized teams working with Vue js , Node.js , React , React Native, Wordpress, APIS, Shopify and pure HTML, CSS, PHP and JS. I always start the project immediately they hardly contact me. I have also helped clients with general troubleshooting, bug fixing. Project from scratch with design in Figma, normally I do, I do all the development so that the owner or manager can customize everything from the customizer of the theme I'm creating in both shopify theme and wordpress with ACF blocks or Gutenberg Blocks :) Overall I like to involve with projects as if they were my own, and I am very committed to achieving the best possible outcome to, at the end of the day, create a website that does Not Only look pretty but also meets business goals efficiently and increases conversion rates. I have several years old creating and working App collaborations, Websites and Landing Pages professionally. PPS: If you want someone that will NEVER ghost you and will always be responsive, but also that delivers great quality FAST, then contact me at +61 420 638 248. Expertise: - ExpressJs React Navigation - Handlebars. - UI with Storybook. - Node.js Firebas. - GraphQL Apollo Realm. - HTML5 CSS3 SASS LESS Bootstrap. - Complete Shopify store setup - Shopify Programming in liquid. - Apps and Theme installation and customization - Setup Product - Setting up Shipping Rules - Custom Shopify Theme development - Slate theme development
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Front-End Development
    Liquid
    API Integration
    Shopify Templates
    Shopify Theme
    Vue.js
    Page Speed Optimization
    Shopify Plus
    Shopify Apps
    Ecommerce Website Development
    User Experience Design
    Web Design
    Figma
    Landing Page
  • $45 hourly

    • 4.1/5
    • (10 jobs)
    🔷 Top Rated Talent Tired of software project delays, ineffective communication, and bug-ridden code? With over 10 years of experience and a background in a large company with 30 million users, I offer quick and high-quality solutions. I work independently, handle emergencies promptly, and my attention to detail prevents future issues. I help businesses drastically improve their software performance without spending hundreds of thousands of dollars on complex systems, leveraging my 10 years of experience and background in a large company with 30 million users.. Here are some of the results my clients are getting: 🏅 "I would 100% recommend him for front end related work." - Rapid problem-solving 🏅 "Great communication and so helpful." - Exceptional communication skills 🏅 "He went above and beyond to meet my expectations." - Exceeding expectations 🏅 "Carlo is patient, diligent and knowledgeable." - Patience, diligence, and expertise 🏅 "Carlo's ability to work independently while understanding when to look for feedback." - Independent work and team integration 🏅 "Carlo's technical expertise in Node.js, JavaScript, and React was evident throughout the project." - Technical expertise and efficient project execution I've helped my clients reduce their bug count to zero, achieve pixel-perfect front end designs, and build robust back ends using the best patterns like TDD, CI/CD, etc. This has resulted in flawless software performance, improved user experience, and robust, scalable systems. We may be a great fit if you are thinking: 🔑 "Every time we encounter a bug, we lose productivity and potential revenue." 🔑 "We have a great product, WHY aren't we maximizing its potential?" 🔑 "I'm NOT a software expert, and I don't have time to mess around with code!" 🔑 "The last project we did had TERRIBLE issues - I don't want that EVER again." 🔑 "I need someone to take this project, and get it done RIGHT - the first time!" Working with me, you will: 🎉 STOP STRUGGLING with your software issues. 🎉 Maximize your product effectiveness through best-in-class solutions. 🎉 Get delivered turnkey projects - all you have to do is press “Launch”. With 10 years of software engineering experience, a degree in Computer Engineering, and a master's in Machine Learning, I've built hundreds of software solutions from scratch. I've worked at Klarna for 3 years, the largest fintech in Europe and a unicorn with 30 million active users. ✅ 10+ years of experience as a Software Engineer ✅ 10+ years of backend programming experience ✅ 10+ years of expertise in JavaScript/Typescript ✅ Proficient in Node.js ✅ Experience in React and React Native ✅ Crafted hundreds of backends using Express.js ✅ 7 years of experience in creating web apps with React ✅ 5 years of using React Native to build mobile applications ✅ Capability to integrate the front-end with APIs ✅ Experience in using Figma for front-end design ✅ Expert in SQL relational databases and NoSQL databases like Postgres and MongoDB ✅ Experience in creating Chrome extensions and use of Zapier ✅ Experience in Machine Learning and new LLM technologies like ChatGPT, Langchain, AutoGPT, Pinecone, LLAMA 2, MemGPT ✅ Fine-tuned several models like Mistral ✅ 5 years of experience in Python and Web Scraping ✅ Experience in Trading System with Multicharts and Python ✅ Mobile application development experience on Android and iOS platforms ✅ Familiar with Java/Kotlin for Android app development ✅ Familiar with ObjectiveC/Swift for iOS app development ✅ Experience as a Prompt Engineer, having created various chatbots SOUND LIKE A FIT? NEXT STEPS: Click the green ‘Invite to Job’ button in the top right-hand corner, send me a message and let’s organize a call!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Trading Automation
    Algorithm Development
    Web Scraping
    Machine Learning
    Prompt Engineering
    React Native
    Full-Stack Development
    RESTful API
    Google Chrome Extension
    Python
    React
    Node.js
    TypeScript
  • $25 hourly

    • 4.9/5
    • (15 jobs)
    Multiple published web games. From scratch to host them on servers. Going through the whole process of designing the mechanics, drawing the graphics and animating them, introducing visual improvements and effects. Implemented all the development with Javascript or Typescript, using the Pixi.js graphics library, to produce light games with almost no loading times and with an immediate game response. Games can be played with keyboard and mouse and/or touch controls. Adapting the display to all types of screens and aspect ratios, either making a fixed aspect ratio or filling the screen intelligently, according to the client's preference.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    HTML5 Canvas
    PixiJS
    Node.js
    Mobile UI Design
    Game Design
    Game Development
    HTML5
    TypeScript
  • $80 hourly

    • 4.8/5
    • (4 jobs)
    ✅ 8+ years as .NET Core Full Stack Developer I have completed an ERP project from scratch, .NET Core was used in the back-end. MSSQL with Entity Framework and MongoDB noSQL were the database engines. The project used Dependency Injection and microservices. For the front end, a combination of Javascript (jQuery), HTML, CSS(Bootstrap) was used. To conclude I have long experience with the full life cycle of a software, with clean, easy to maintain and well documented code.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Algorithm Development
    .NET Core
    C#
    SQL
    .NET Framework
    API
    Microservice
    Entity Framework
    Microsoft SQL Server
  • $40 hourly

    • 4.8/5
    • (26 jobs)
    Very good at handling data projects and very creative to come up with new ideas on how to work with that data. Always eager to learn new technologies or methodologies.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Data Visualization
    Data Science
    RESTful API
    D3.js
    Git
    HTML
    Amazon Web Services
    Flask
    Docker
    Python Script
    Visualization
    Data Analysis
    MySQL
    Python
  • $50 hourly

    • 5.0/5
    • (2 jobs)
    🏆 Top Rated PLUS | ✅ 100% Job Success Hello there! I'm a professional developer with over 6 years of experience, specializing as a Full Stack developer. My primary expertise lies in the following technologies and stacks: • Node.js (4+ years) • React.js (4+ years) • React Native (2+ years) • MongoDB (3+ years) • Express (4+ years) • JavaScript (5+ years) • HTML and CSS (5+ years) • PHP (5+ years) • MySQL (5+ years) • Python (3+ years) • AWS (3+ years) • VPS (5+ years) • Linux (5+ years) • Git (3+ years) • WordPress (5+ years) My skills cover everything from backend development and building APIs to front-end web and mobile development, using a wide range of languages and technologies. In terms of my experience, I've successfully completed numerous projects as a full-stack developer, consistently using Agile Methodologies to ensure the smooth progress of each project. Two standout projects I've worked on include: • An international platform where I was responsible for the end-to-end development, workflow definition, and implementation using technologies like Node.js, React, and MongoDB. • Several e-commerce systems where I developed administrative panels, integrated plans and packages, and utilized technologies such as Node.js, React, MongoDB, Express, and React Native for mobile iOS development. Some projects also involved technologies like WordPress and PHP. When it comes to language skills, I have: • Advanced proficiency in English (speaking, reading, and writing) • Advanced proficiency in Spanish • Basic knowledge of Japanese • Native proficiency in Portuguese My strong problem-solving and analytical skills facilitate effective communication with clients and stakeholders, ensuring project success. I thrive on creativity, strategic thinking, and continuously learning new languages and technologies. Feel free to check out my GitHub profile. For any inquiries, please don't hesitate to contact me through the following channels: • Portfolio: pabloitalo.com/project • GitHub: github.com/pabloitaloac
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    AWS Development
    Back-End Development
    Front-End Development
    iOS
    Android
    API
    React Native
    Full-Stack Development
    Web Development
    WordPress
    PHP
    TypeScript
    React
    Node.js
  • $50 hourly

    • 5.0/5
    • (2 jobs)
    Need a profesional to bring your business idea to life with Bubble.io, without breaking the bank? With almost 2 years of experience, I'm your go-to person! Let's make your MVPs happen quickly, easily, and affordably. Ready to start building? 🚀 I excel at grasping your vision and turning it into a reality. My focus is on crafting efficient, pixel-perfect, and easily scalable apps. With experience in developing various apps, including marketplaces, social platforms, and specialized internal tools, I ensure your ideas come to life seamlessly. Benefits to expect from my work: ✅ End-to-end web application with a sleek UI/UX ✅ Complex, scalable, and high-performing database design. ✅ Third-party API integrations (Calendly, Zapier, chatGPT, etc). ✅ Payment processing gateways (Stripe, Paypal, etc). ✅ Responsiveness for mobile and tablet. ✅ Login and Sign up with Social Authentication. ✅ Robust email /messaging notification systems. ✅ Account Manager and Dashboard pages. ✅ Functional plugins (photo-video-document upload, signature pad, rich-text editor, etc). ✅ Deployment and Version Control Management. Do we match well? My clients typically share the following traits: 🎯 Value quality work and are ready to invest appropriately for the job. 🎯 Punctuality is crucial, and you can trust me to meet deadlines and keep your project on schedule. 🎯 Communication is essential. I provide daily updates on the project's status, allowing you to focus on your priorities. 🎯 Have a clear and defined vision. It's important to articulate your ideas effectively, enabling me to deliver the best results. About me: I'm Julian, a Computer Science student at Spain's top university. I've been passionate about developing web apps for over three years. Recently, I came across Bubble and recognized its numerous advantages, such as cost reduction, time efficiency, and maintaining effectiveness as a full-stack solution. While I consider myself an expert, I always strive for continuous learning and improvement. Cool, what's next? Let's chat quickly. Reach out or invite me to talk about what you need. I'm ready to help you succeed. 🚀🫡
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    SaaS Development
    Figma
    Project Management
    HTML
    CSS
    UI/UX Prototyping
    Linux
    C
    Java
    Bubble.io
  • $50 hourly

    • 4.9/5
    • (19 jobs)
    # Roles - Agile project manager / engineering manager / lead developer / developer. # Current availability - Part-time. # Current interests - Web3, DeFi, Blockchain, Fintech, Crypto. - Software development productivity and good practices for small to mid-sized teams. - Challenging projects and learning new things (any role, including developer). - React.js, Angular.js, Nest.js, Express.js, Node.js, MongoDB, cloud (Docker, Kubernetes). # Experience - December 2021 - current: crypto market and modern banking startup. Project manager / engineering manager / technical director directly reporting to the CEO & founders. - March 2017 - May 2020: Power Software Consulting. Lead developer (MEAN stack) for a complex multimedia CMS. - August 2011 - August 2014: MockupScreens.com. Project manager. - July 2005 - current: Freelancer.com and other markets. Freelance developer. More than 400 projects successfully completed, being one of the top-rated developers. # Education - 2003-2009 Public University of Spain: Technical Engineer in Telecommunications (BSc. Degree equivalent in the USA). # Languages - English: - Writing: almost native. - Speaking: good. - Spanish: native. # Other - I have been using (GNU?/)Linux as my main OS for many years, and I have a preference for open-source software.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Blockchain
    Smart Contract
    NestJS
    Agile Software Development
    React
    Angular
    MongoDB
    AngularJS
    PHP
    Node.js
    MySQL
    Java
  • $45 hourly

    • 5.0/5
    • (4 jobs)
    Hi there, I am Fawad, a software engineer with over 5 years of accumulative industry experience at companies like Amazon, TomTom and CERN, With my experience of hands-on on a variety of small to large scale projects, spanning from frontend design systems and component libraries to backend legacy monolithics and microservices, I've got the skills and knowledge to tackle your project. Technical Proficiencies: • Programming Languages: TypeScript, Java, Kotlin, JavaScript, C++ • Web Frameworks/Libraries: Spring Boot, React, Angular, Node.js, GraphQL, JUnit, Mockito, Jest • Databases: PostgreSQL, MySQL, MongoDB • Infrastructure/DevOps: Docker, AWS, Azure, Linux, GitLab CI/CD, GitHub Actions, Jenkins Why Choose Me? • Versatility: Covering all aspects of software engineering, from feature development to design and testing. • Attention to Detail: Crafting elegant, efficient code with scalability and maintainability in mind. • Collaborative Approach: Embracing feedback for a collaborative and innovative project journey. Feel free to reach out and connect for discussion on your specific project.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    GIS
    OpenCL
    C++
    Kotlin
    Spring Boot
    Java
    TypeScript
    Angular
    WebGL
    Three.js
    React
    Node.js
  • $50 hourly

    • 5.0/5
    • (10 jobs)
    Hey there! 👋 I'm Pablo, a Full Stack Developer from Spain 🇪🇸. I've been in the software engineering field for over 6 years, working in big companies and leading teams of developers. I've built lots of different projects, and I'm pretty flexible. If you need help with something, chances are I already know a bit about it. The common theme in all my projects is automation. I love making things like data scrapers, bots, and tools to make work easier and faster. Nowadays, with the latest AI advances, I'm focusing on projects related to Large Language Models (LLMs), such as building LLM-powered chat applications and performing data scraping and extraction to construct RAG embeddings for vector databases. Here's some of what I've done: 🏡 Made web scraping tools to find real estate leads. 🏆 Created chatbots that won awards and saved a lot of time for customer support. ⚙️ Built browser add-ons that do repetitive tasks much faster. 💬 Programmed bots for Telegram, WhatsApp, and Discord to help manage communities. 🦾 Set up systems to handle sales and marketing tasks automatically, increasing sales. 🚀 Made APIs that can handle millions of users without any problems. I know a lot of different technologies. I'm really good with Node.js, TypeScript, and React, but I can also use Python, Golang, and whatever databases or cloud systems you like. I take pride in my work and always try to do even better than expected. Communication is super important to me. I speak Spanish 🇪🇸 and English 🇬🇧 fluently, and I'm available 24/7. I'm in the CET timezone, but I can be flexible to work with different schedules, including those in EST to PST timezones. Let's work together and make something great! ↗️
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Back-End Development
    Web Development
    Artificial Intelligence
    Next.js
    React
    Front-End Development
    Node.js
    ChatGPT
    Bot Development
    Amazon Web Services
    Automation
    Data Scraping
    API
    Python
  • $85 hourly

    • 5.0/5
    • (26 jobs)
    𝗧𝗼𝗽-𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗳𝗼𝗿 𝗼𝘃𝗲𝗿 𝟭𝟬 𝘆𝗲𝗮𝗿𝘀, consistently recognized in the 𝘁𝗼𝗽 𝟯% 𝗼𝗳 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀. Hi! I’m a results-oriented graduate engineer who loves software development! I’m self-motivated and a quick learner. I enjoy applying my knowledge and best practices to create solutions that really make a difference. I've been working as a software developer for many years by implementing the following technologies: React/React Native, Django, Python, Vue, JavaScript, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, TypeScript, Express.js, GraphQL, AWS, Google Cloud Platform, Ruby on Rails, Bootstrap, CSS, HTML5, Artificial Intelligence, Machine Learning, LLM, Rest APIs, Heroku, Git, Microservices, NX, RabbitMQ, Redis, jQuery, Social Networks, etc. Sr. DevOps Engineer I have extensive experience ensuring the smooth operation of software systems from development to deployment. I have a track record of satisfied clients, and I have earned over $300,000 on Upwork to demonstrate my expertise. This includes designing, implementing, and maintaining infrastructure, as well as ensuring the quality and reliability of software applications. Key Responsibilities: * Infrastructure as Code (IaC): Design and implement infrastructure using tools like AWS CloudFormation and Terraform. * Containerization: Use Docker to containerize applications and ensure efficient deployment, including Kubernetes orchestration. * Continuous Integration & Continuous Delivery (CI/CD): Implement CI/CD pipelines using tools like Jenkins, CircleCI, or GitLab CI/CD. * Monitoring & Observability: Use tools like New Relic, Datadog, Prometheus or OpenTelemetry to monitor and analyze system performance. * Security & Compliance: Ensure compliance with security standards and implement security measures using tools like HashiCorp Vault AWS IAM. * Collaboration & Communication: Work closely with development teams to ensure seamless integration and communication. Skills: * Programming languages: Python, JavaScript, Ruby. * Cloud platforms: AWS and GCP. * Containerization: Docker and Kubernetes. * Infrastructure as Code (IaC): AWS CloudFormation and Terraform. * CI/CD tools: CircleCI, GitHub Actions, GitLab. * Monitoring & Observability: OpenTelemetry, New Relic, Datadog, Prometheus * Security & Compliance: HashiCorp Vault, AWS IAM * Collaboration & Communication: Agile, Scrum, Kanban. Sr. Database Administrator Senior database administrator with vast experience in relational and non-relational databases. Expertise in SQL, PostgreSQL, MySQL, MongoDB, AWS Aurora, Amazon RDS, Redis, etc. I have spent more than 15 years working on data modeling, database administration, ETL, ORM, and query optimization. Data Scientist Highly skilled data scientist with expertise in machine learning, supervised learning, and neural networks. Proficient in developing and deploying AI models using LLM and ChatGPT. Implemented OpenAI technologies to integrate AI-driven insights into trading strategies, analyze user behavior in e-commerce, and use NLP for sentiment analysis. LLM Chatbot Development Developed and deployed several LLM chatbots using LangChain's advanced language processing capabilities. These chatbots utilize vector embeddings to capture the meaning of text and are designed to understand and generate human-like responses. Key Skills: Machine Learning (ML) Generative AI Supervised Learning Neural Networks Large Language Models (LLM) ChatGPT OpenAI Vector Embeddings LangChain
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    API
    TypeScript
    Vue.js
    Amazon Web Services
    Unit Testing
    Kubernetes
    Node.js
    Terraform
    PostgreSQL
    MongoDB
    React
    Django
    Ruby on Rails
    React Native
    Python
  • $60 hourly

    • 5.0/5
    • (7 jobs)
    I am expert in Python and javascript with 5+ years of experience and also specializes in Golang, C/C++, C# and Java. - Python Libraries / Frameworks Django, Flask Scrapy, BeautifulSoup 4, Selenium Numpy, Pandas, Scipy, IPython, Matplot Boto3 PySide/PyQt Celery Pillow - Ruby / Ruby on Rails - Frontend Libraries / Frameworks Angular, React Javascript/jQuery Bootstrap Framework - Database Relational: Mysql, Postresql NoSQL: MongoDB, Django ORM, Elasticsearch - Linux Administration C/C++ Bash scripting Server Administration - Other Languages Golang, Java, C, C#
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Data Scraping
    Data Science
    Bash
    Django
    Python
    C++
    Golang
    C#
    Java
  • $15 hourly

    • 5.0/5
    • (6 jobs)
    Python | Svelte | C# | HTML | CSS | Node.js | SQL | JavaScript | Unity Name: Maxim Languages: English (fluent) Spanish (proficient) Age: 20 *Professional Summary* - Pro-active and business-focused Software Developer with 2+ years of experience seeking a mid-level position to utilize skills in coding, troubleshooting, and developing desktop and mobile solutions. - IT professional with a Bachelor of Computer science degree and good knowledge and understanding of software development technologies, applications, and methods. - Excellent communicator with fluent English able to build long-term effective relationships with clients, stakeholders, and colleagues. - Strong interpersonal skills with the capability to work independently or in a team with substantial time management and organizational skills. Education 2022 Bachelor of Computer Science, Anglia Ruskin University, Cambridge, UK 2020 C# Programming, Udemy, online 2020 JavaScript, Udemy, online 2018 Secondary School, Wingate School, Tenerife, Spain Additional Information Languages: English – fluent, Spanish – advanced. PC: MS Office, Adobe Photoshop. Adobe Illustrator, WordPress.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    API Integration
    Google Chrome Extension
    Bot Development
    Node.js
    Raspberry Pi
    Python
    C#
    Svelte
    SQL
    HTML5
    GIMP
    CSS
  • $20 hourly

    • 5.0/5
    • (2 jobs)
    Creative graphic and web designer with extensive experience in brand development, digital strategy, and user experience design
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Salesforce
    Shopify
    WordPress
    UX & UI
    TypeScript
    CSS
    HTML
    Front-End Development
    Graphic Design
    Web Design
  • $35 hourly

    • 5.0/5
    • (1 job)
    I am a full-stack developer with a Bachelor's Degree of computer science. I would prefer React/Angular for the front-end and Node/ASP.NET for the back-end, but I am perfectly comfortable with the other JavaScript frameworks as well. Front end development up to and including CSS/CSS3, Bootstrap 3/4 and jQuery are also technologies that I have experience with. I can help you to find the best solutions to build the basic and advanced web applications perfectly with well-structured and easy reusable code. Thank you in advance for your time and consideration. I look forward to working with you soon. Best Regards.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    CSS
    CSS 3
    ASP.NET
    Angular
    jQuery
    Bootstrap
    HTML
    React
    Node.js
  • $45 hourly

    • 4.2/5
    • (62 jobs)
    As an experienced Algorithm Developer, I specialize in creating optimized, efficient, and scalable algorithms tailored to solve complex problems across various domains. My core strengths lie in algorithm design, data structures, and mathematical modeling, which I have honed through years of rigorous practice and application in both academic and professional settings. Skills: - Algorithm Design & Optimization: Expertise in designing algorithms that are both efficient and effective, minimizing computational time and resource usage. - Data Structures: Proficient in utilizing advanced data structures to optimize performance and solve intricate problems. - Mathematical Modeling: Strong foundation in mathematics, allowing me to create models that accurately represent real-world scenarios. - Programming Languages: Proficient in Python, C++, and C#, with a deep understanding of their application in algorithm development. - Machine Learning Algorithms: Experience in developing and optimizing machine learning models, including supervised and unsupervised learning techniques. Projects & Accomplishments: - Martingale Grid Algorithm for Crypto y Forex markets in MQL5 (C++ Fork) - Crypto Portfolio Manager to buy any crypto currency that gets devaluated against the current capital crypto currency developed from scratch using python - Crypto Arbitrage Software to execute a buy a sell in different crypto exchanges to generate an edge when there is a difference in the prices between the ask and bid in different exchanges I am committed to delivering high-quality, robust solutions that meet client needs and exceed expectations. Let's collaborate to bring your project to life with precision and efficiency.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    PHP
    C#
    MySQL
    Scripting
    MQL 4
    MetaTrader 4
    NinjaTrader
    MQL 5
    Forex Trading
    .NET Framework
    C++
    pandas
    Python
  • $10 hourly

    • 5.0/5
    • (4 jobs)
    Hello, I am freelance web developer with experience in designing and developing pages in Webflow, Squarespace, Shopify. I have good knowledge of CSS, HTML and JavaScript, Bootstrap. If something is wrong with your Squarespace, Webflow, or Shopify site, I can probably fix it for you. I will also give recommendations for improvements for any place I work on. I can create themes and website which will seo friendly, which helps to increase website ranking on Google.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Polish to Spanish Translation
    General Transcription
    Figma
    UX & UI
    Bootstrap
    Squarespace
    CSS
    Shopify
    Webflow
    HTML
  • $50 hourly

    • 5.0/5
    • (3 jobs)
    I am really happy to have opportunity to develop and launch projects on wide range of applications. I had the chance to be a jack of all trades delivering many projects. I am well experienced in web development especially expert in javascript frameworks like React.js and Vue.js, also with backend frameworks like node.js, python and asp.net. Also I am expert in e-commerce platform development using shopify or other framework.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Redux
    HTML
    PHP
    Tailwind CSS
    React
    Node.js
    ASP.NET
    CSS
    Vue.js
  • $20 hourly

    • 5.0/5
    • (5 jobs)
    I consider myself as a highly skilled professional with a strong background in technical problem-solving, team leadership, and software development. My expertise spans across multiple programming languages, including C, JavaScript (ES6), C# on Unity, and Python, along with a solid foundation in IT troubleshooting and operating system configuration. With extensive experience in application testing and development, I bring a deep understanding of the software development lifecycle, particularly in quality assurance processes. My technical toolkit includes a wide array of tools and technologies such as HTML, CSS, React, Redux, UIkit, Bootstrap, Docker, Nginx, and WordPress. Additionally, I have experience working with databases like SQL Server, MongoDB, and MySQL, including database design. I am passionate about the intersection of technology and creativity, with particular interest in video game quality assurance, mobile applications, and web development. My commitment to continuous learning and my ability to quickly adapt to new challenges make me a valuable asset in any technical role.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    React
    Game Development
    C
    Game Design
    Unity
    HTML
    Python
    SQL
    C#
  • $35 hourly

    • 5.0/5
    • (1 job)
    Hello. For many years, I have worked as a full-stack developer and have done many projects until now. I want to introduce myself about my skills and services. Here are my skills: ♛ Web Technologies ✮ Backend - PHP(Laravel), Python(Django, Flask), Node.js(Express) ✮ Frontend -TypeScript, Angular 4, 6~11, Angular Material, JavaScript, ES5+, React, Redux, React Hooks, Vue.js, HighChart, HTML5, CSS3/SCSS, Bootstrap, jQuery ♛ Desktop Technologies ✮ C/C++, C#, Qt5 ♛ Hybrid Technologies ✮ React Native, Ionic ♛ Other Technologies ✮ Data Analysis ✮ Scraping and Automation using several Technologies ✮ Database management ✮ Server Configuration and Management Best Regards.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    PostgreSQL
    Machine Learning
    HTML
    API
    MySQL
    MongoDB
    SQL
    PHP
    Python
  • $20 hourly

    • 4.9/5
    • (3 jobs)
    I have a strong foundation in programming languages such as Java and Python, and I am always eager to learn more. In my studies, I have completed coursework in data structures, algorithms, and computer systems, giving me a well-rounded understanding of the field. In addition to my technical skills, I am a hard-working and dedicated individual with excellent communication and collaboration abilities. I am confident that my skills and experience make me a valuable asset for any project. I am excited to apply my knowledge and skills to new challenges and opportunities on Upwork. Thank you for considering me for your project.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Discord Bot Development
    MongoDB
    MySQL
    HTML
    English
    React
    C#
    Web Development
    PostgreSQL
    API
    Django
    Flask
    C++
    Python
  • $40 hourly

    • 0.0/5
    • (1 job)
    Hey everyone, My name is Martin, a software developer from Spain with a decade of experience in software development, a Master's Degree in Computer Science, and 2 published papers. I also lead a team of highly skilled developers at Kairox Apps, a mobile and AI applications development company. We focus on working with and leveraging the latest technologies - AI, VR, AR, WEB 3.0 - to make your product stand out. Capabilities: - AI, ML Application Development - 2D and 3D Game Development - App development in AR/VR - Mobile Application Design, Development, Publishing - Web apps development What we need: -Full/Partial specs of the project you would like to develop -Designs if you have them ready If I or my colleagues could be of help to you, let me know, and we can discuss your project and requirements further. Telegram: @martinpellon
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Desktop Application
    Software Development
    C#
    Web Application
    React
    PHP
    AI Consulting
    Game Development
    Unity
    Python
    AI Development
    AR & VR
    Mobile App Development
    Artificial Intelligence
  • $65 hourly

    • 0.0/5
    • (1 job)
    Experience more than 5 years. I have been active for 3 years now. I am engaged in software development and development. I am ready for any amount of work, I am discovering a new platform and I hope for good cooperation. Have a nice day
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Selenium
    Web Service
    JUnit
    Spring Framework
    Java
    HTML
    SQL
  • $30 hourly

    • 5.0/5
    • (3 jobs)
    Hi, I´m Jorge! I'm a Full Stack Software Engineer, I have experience building big scale applications and taking care of : - Front ( React + JS) - Back ( Node + Express + ts) - CI/CD ( Jenkins + AWS) Deep knowledge of video streaming ( OTT, VOD, Playback) including - Streaming playback ( HLS, DASH, Smooth Streaming) - Players ( Hls.js, dash.js, shaka) - DRM ( Widevine, Fairplay, PlayReady, Verimatrix) - Platforms ( Xbox, Ps4, Lg (WebOS), Samsung (Tizen), Foxxum) - Browsers, Ads, optimization,..
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    GraphQL
    Video Stream
    Microsoft IIS
    Dash
    FFmpeg
    Streaming Platform
    Swagger
    C#
    DevOps
    Web Development
    TypeScript
    Jenkins
    Node.js
    React
    HTML5
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