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Hire the best API Developers in Buenos Aires, AR

Check out API Developers in Buenos Aires, AR with the skills you need for your next job.
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  • $80 hourly
    • 4.9/5
    • (15 jobs)
    Expert in Laravel, PHP, VueJS, Livewire, Filament, AWS, DigitalOcean, Puppeteer, Data Scraping. 2 times cofounder turned freelancer. I've been building software for over a decade now and been able to collaborate with teams distributed around the world. I can help you build your ideas, fix bugs, deploy products, automate processes.
    Featured Skill API Development
    Claude
    OpenAI API
    FFmpeg
    MySQL
    Tailwind CSS
    Vue.js
    Node.js
    PHP
    Laravel
  • $29 hourly
    • 5.0/5
    • (11 jobs)
    👋 Hey, I'm Luciano! I'm a Python Backend Developer turning complex requirements into elegant, scalable solutions. I'm passionate about best, agile and modern practices (weird, right?) and I've been Top-Rated by Upwork. 🎯 How Can I Help You?: Design & deploy FastAPI backends Build OpenAI integrations Create web scraping systems Set up cloud deployments (AWS, Vercel) Automate processes (Excel, Emails, other boring stuff) Design system architecture 💼 Currently working as a Backend Engineer at a leading FinTech and as a Python Developer at AgiraAI, developing customer intelligence systems using AI. 🔧 Tech Stack: FastAPI • Python • Backend Development • Web Scraping • PostgreSQL • Docker • AWS • GitHub • DevOps • Pydantic • OpenAI • MongoDB • SQL Let's build something great together.
    Featured Skill API Development
    Database
    RESTful API
    Python Script
    Software
    API
    API Integration
    Selenium
    Teaching Programming
    JSON
    Computer Engineering
    Python
  • $30 hourly
    • 5.0/5
    • (8 jobs)
    I’m a senior software engineer and technical leader with over 7 years of experience building scalable, high-performance web applications and APIs. My expertise lies in .NET Core, Angular, and React, but I’ve also worked with Node.js, Spring Boot, and Flutter to deliver end-to-end solutions. Throughout my career, I’ve successfully: Developed custom web applications and APIs for startups and enterprises. Integrated third-party platforms like Stripe, Calendly, and Facebook API for seamless functionality. Optimized database performance using SQL Server, MongoDB, and Redis. Led teams of up to 10 developers, focusing on architecture design, code reviews, and mentoring junior developers. My frontend expertise includes frameworks like Bootstrap, Angular Material, and Tailwind CSS, ensuring responsive and user-friendly interfaces. On the backend, I’ve built robust systems with .NET Core, Node.js, and Spring Boot, delivering scalable and maintainable solutions. Here’s what I bring to your project: High-Quality Code: Clean, maintainable, and scalable solutions tailored to your needs. Proven Results: Improved performance, seamless integrations, and on-time delivery. Technical Leadership: Experience managing teams and designing architectures for complex projects. Whether you need a custom web app, API integration, or a complete system overhaul, I’m here to help. Let’s work together to turn your vision into reality!
    Featured Skill API Development
    ASP.NET Core
    MongoDB
    ExpressJS
    MERN Stack
    MEAN Stack
    Microsoft SQL Server
    Web Development
    Node.js
    Next.js
    NestJS
    Angular
    React
    ASP.NET
    .NET Framework
  • $35 hourly
    • 5.0/5
    • (1 job)
    I am a seasoned blockchain developer with a passion for innovation and problem-solving. With over 5 years of experience in the industry, I specialize in Solana blockchain development, bot development, and a range of other cutting-edge technologies. My expertise lies in crafting efficient and secure solutions for various use cases, from decentralized finance (DeFi) to non-fungible tokens (NFTs) and beyond. I am committed to delivering high-quality work that exceeds client expectations and drives tangible results. Skills: Blockchain Development (Solidity, Rust, Solana, Ethereum) Solana, Orca dex Smart Contract Development Solidity, Rust Decentralized Finance (DeFi) Non-Fungible Tokens (NFTs) Bot Development (Discord, Telegram, Twitter) Web3 Development Cryptocurrency Integration Security Auditing API Development
    Featured Skill API Development
    LLM Prompt Engineering
    LLM Prompt
    AI Chatbot
    AI Bot
    Cryptocurrency
    Web3
    Bot Development
    Decentralized Exchange
    Smart Contract Development
    Blockchain Platform
    Blockchain Development
    Blockchain
  • $80 hourly
    • 4.9/5
    • (196 jobs)
    WordPress & WooCommerce developers with a passion for finding simple solutions to complex problems, and delivering high-quality products that meet your business goals. WHAT WE CAN HELP YOU WITH: Scoping services to help you determine your needs and understand your options. Comprehensive WooCommerce support, from setup to customization. Integration of your website with external systems such as payment gateways, shipping software, APIs, CRMs, and more. > Implementation of designs from PSD, Sketch, or Figma into WordPress. Development of custom plugins that bring unique, tailored functionality to your site. Customization of both paid and free themes and plugins to meet your needs. Assistance with membership, community, and subscriptions-based websites. Creation of powerful search experiences, even at a large scale. Migration services, including simple to complex migrations from other systems to WordPress and between WordPress sites. Performance optimization and bug fixing. Expert troubleshooting and technical support. Seamless website hosting migrations. WHY WORK WITH US: Over 40 years of combined experience in software development. Excellent English proficiency. A problem-solving mindset and a positive, can-do attitude. Regular project updates and progress reports. Personalized customer service. Reliability and timely delivery of results. Convenient business hours for clients in North America and Europe. Full-time freelancers who do all coding in-house. Multilingual abilities in English, Spanish, German, and Portuguese. Our expertise in tackling difficult projects that others may shy away from or be unable to solve.
    Featured Skill API Development
    WooCommerce
    WordPress Development
    WordPress Plugin
    WordPress Bug Fix
    JavaScript
    HTML
    WordPress Theme
    PHP
    WordPress Migration
    WordPress Multisite
    WordPress Consultation
    CSS
    WordPress
    WordPress Customization
  • $65 hourly
    • 5.0/5
    • (35 jobs)
    Svelte + ReactJS developer and SuiteCRM contributor with real-world experience. * Marketing automation stack - Mautic + SuiteCRM + Wordpress * CRM + Call center apps (100s of users/minute) * B2C CRM + Loyalty program ( more than 70 stores countrywide) * Wordpress apps/plugins for complex websites. Backends are done using Laravel, SuiteCRM or Wordpress. Frontend work is done using React.js + GraphQL. Created an open source SuiteCRM-Graphql interface - github : lionixevolve/GraphQLSuiteCRM
    Featured Skill API Development
    HTML5
    JavaScript
    SuiteCRM
    WordPress
    PHP
    RESTful API
    MySQL
    GraphQL
    React
  • $25 hourly
    • 5.0/5
    • (1 job)
    About Me I'm Fernando De Sena, a seasoned IT professional with a career spanning since 2004. My focus is on leveraging technological innovation to deliver the best solutions tailored to project needs and possibilities. Professional Experience For several years, I have worked as a developer specializing in C# with a strong emphasis on .Net Core and Entity Framework, alongside extensive experience with SQL Server databases. My expertise extends to full frameworks (versions 1.1, 2.0, 3.5, 4.0, 4.5) that preceded .Net Core, and I have also utilized MySQL and MongoDB in recent projects. Over the past six years, all my projects have been hosted on AWS, including: - A Finance PFM - A Fintech Banking CORE - A BTBTC application for well-being content with live streaming In recent years, I've also served as CTO for several companies, where I built products from scratch, led the hiring of entire dev teams, created comprehensive project roadmaps, and successfully achieved project milestones. My Team Today, I'm the co-founder of Spinlab, alongside other experienced professionals. Our DevTeam is based in Buenos Aires, and we're equipped to handle projects as a cohesive unit. Our expertise includes development, project management, and product discovery & UI/UX design, enabling us to take on MVPs and build projects from the ground up. Tech Stack Frontend: React, TypeScript, NextJS, Storybook, Jest, TailwindCSS, Eslint Backend: Node, NestJS, Jest, Yarn, Eslint Database: MongoDB, SQL (SQL Server, MySQL, Aurora, etc.) Cloud Architecture: AWS Additional Skills My experience also includes system integrations using REST and SOAP services, and working with RFID and other input/output sensors. Let’s Connect I’m always eager to explore new opportunities and bring innovative ideas to life. Feel free to reach out to discuss how we can collaborate on your next project.
    Featured Skill API Development
    Web Development
    .NET Core
    Website Redesign
    Netting
    SQL
    API
    Project Analysis
    Project Management
    Project Engineering
    Mobile App Development
    React
    Node.js
    MongoDB
    JavaScript
  • $20 hourly
    • 5.0/5
    • (2 jobs)
    I'm a software developer specialized in Backend for web applications and RESTful APIs. Additioanlly, I'm a teaching assistant in a programming course for Electronics at my university. I also program some calculus-oriented scritps as a hobbie for certain games' meta theorycrafting and some desktop applications at low-level scope, just for fun (not UI focused, only for running from terminal). I have experience mainly with Java and Spring boot ecosystem, C and Python. I also have some basic knowledges about software architecture, performance testing and Docker.
    Featured Skill API Development
    Docker
    pandas
    NumPy
    JUnit
    Object-Oriented Design
    Linux
    C
    Python
    Spring Boot
    Java
  • $31 hourly
    • 5.0/5
    • (1 job)
    With more experience in PHP frameworks such as Laravel, Symfony and Yii, I will assist clients to build RESTful APIs for beautiful sites and changing their ideas into reality. I am PHP expert so I am very confident to build the backend systems using PHP frameworks such as Laravel, Symfony and Yii, from RESTful API to integration Third party. If you have trouble in this field or want to build backend system in PHP, don't waste your time, just contact me and start our business. Delivery you full projects with high quality in a short time.
    Featured Skill API Development
    ChatGPT
    Stripe API
    Custom PHP
    Yii2
    Apache HTTP Server
    NGINX
    Amazon Web Services
    PostgreSQL
    GraphQL
    RESTful API
    PHP Script
    PHP
    Laravel
    Symfony
  • $30 hourly
    • 5.0/5
    • (11 jobs)
    I got graduated at University in 2009 as System Engineer.I have more than 10 years of experience working in teams from USA as Frontend Engineer and also doing QA of web applications. I have strong experience working Javascript (Angular, VueJS, NodeJS, React, Cypress)
    Featured Skill API Development
    Vuex
    API Documentation
    SQL
    Vuetify
    MongoDB
    Nuxt.js
    AngularJS
    Node.js
    Vue.js
  • $6 hourly
    • 0.0/5
    • (0 jobs)
    SUMMARY Full-stack developer graduated from Microverse where I built several projects (individual and in teams) and gained skills in JavaScript, React, Ruby, Ruby on Rails, Databases & Algorithms, Redux, SQL, HTML & CSS, and more than 1000 hours of remote work with people from all over the world.
    Featured Skill API Development
    Ruby on Rails
    PostgreSQL
    Ruby
    RSpec
    Heroku
    GitHub
    Bootstrap
    Redux
    JavaScript
    Responsive Design
    HTML5
    React
    CSS 3
    Git
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Living between Spain/Argentina. I am interested in long-term contracts/permanent (Remote, in USD/EUR), can be as an architect, leader or senior as self employed in Argentina or as a Spanish citizen. Also I can work with Upwork contracts. Despite my fullstack experience, I want to continue developing with JavaScript. More interest in PWA developments, in which all HTML functions are exploited (PushManager, Navigator, GPS, ServiceWorker, App Manifest, IndexedDB, etc.). I am against the use of Redux, React framework has cleaner and scalable ways to solve state management, Redux distorts the Framework standards and its use should have been stopped since version 16.8 (2019) of React. Even with my native experience, I'm more inclined to hybrid developments with Javascript (Ionic/React Native/Kotlin). Interested in exploiting all PWA tools. I also accept NodeJS. Professional AWS Serverless Lambda with NodeJS and mongodb/atlas. Bio: * Entrepreneur. * Looking for more work experience. * Pro-active. * Easy learning ability. * Experience in handling group. * I have been a permanent employee and trusted staff in every job I've had * Experience working remotely * Software development * Test Automation * Fan of automation processes * 6+ years as Project Technical Leader * Quick adaptation to the urgency and needs * Real FullStack (Web/Backend/Mobile/DevOps) * English Speaker * Freelancer Remote experiences * Scrum believer * SRP (Single Responsibility Principle) lover. * Everything should be reusable and scalable Overall Tech-Skills: 15+ years JavaScript (React, AngularIO, NodeJS, TypeScript, AngularJS, Jquery) 8+ years NoSQL (MongoDB) 5+ years (AWS, Serverless, APIGateway, S3, Recognition, Cognito, Lambda, EC2) 5+ years C# (MVC4,2, EntityFramework,Linq,ASP.NET,Windows Phone) 6+ years SQL (Microsoft 2006/2012, MySQL) 4+ years Java (Android Native,Applets, DesktopApps) 2+ years PHP (CodeIgniter, Laravel, Native) 2+ years iOS (Swift)
    Featured Skill API Development
    React
    Next.js
    Sequelize
    RESTful API
    Angular Material
    Progressive Web App
    API
    Node.js
    Angular
    Front-End Development
    Amazon Web Services
    Amazon S3
    Ionic Framework
    MongoDB
  • $15 hourly
    • 0.0/5
    • (1 job)
    Hello! My name is Oscar Espinoza, and I am a self-taught Full Stack Developer with a passion for bringing innovative technology-enabled products to life. As a CS graduate of Universidad de Nueva Esparta, I gained an understanding of the software development process from end to end. Currently, I am working on a variety of personal projects where I have honed my skills in both front-end and back-end technologies, including: Front-end: ReactJS | Redux | JQuery | Back-end: NodeJS | ExpressJS | PHP | Laravel Databases: MySQL | MongoDB Styling: CSS | Tailwindcss | Bootstrap Apart from my current projects, I am passionate about guiding people and have developed effective communication and problem-solving skills in my respective field. Like Abdul, I also find motivation in receiving words of appreciation from the people I serve. My working experiences have also helped me develop many skills that I use daily as a developer, including designing software solutions, code reviewing, remote pair programming, and teamwork. Tools & Methods: Git, GitHub, Heroku, Netlify, Github Pages, ESLint, Figma, Adobe Photoshop, chatGPT, GitHub Copilot. If you are looking for a developer, let's schedule a Zoom chat! You can also reach me at oscardavid2094@gmail.com to discuss any potential projects or collaborations!
    Featured Skill API Development
    PHP
    GitHub
    Full-Stack Development
    Tailwind CSS
    Docker
    Amazon Web Services
    ChatGPT
    MySQL
    MongoDB
    React
    Node.js
    JavaScript
  • $56 hourly
    • 0.0/5
    • (0 jobs)
    I'm a Professional Web Programmer with more than 15 years' experience building technology solutions. I have performed a wide range of projects, from custom websites for wholesale companies to bespoke software in connection with Insurance companies. I have experience working in teams and also in contact with end customers. My main goal is to produce high-quality and robust solutions, ensuring that the end customer gets an excellent product and the best user experience. My most recent role involved the integration of 23 distinct insurance companies into a unified core system. I am capable of developing manageable websites, APIs, and Microservices. This is my knowledge: Tech Path: Object Oriented Programming - Object Oriented Analysis and Design Patterns - Clean Code - SOLID - Software Architecture - Testing - Repository SVN Tech Stack: HTML - CSS - JAVASCRIPT - ANGULARJS - PHP - POO - LARAVEL - MVC - MYSQL - POSTGRESQL - API REST - MICROSERVICES - PATTERNS - TDD - GIT - GITHUB - DOCKER - LAMP - CENTOS UBUNTU DEBIAN SERVER Nationalities: German - Argentine I'm also available as a freelance to collaborate with Agencies and IT
    Featured Skill API Development
    Web Design
    Object-Oriented Programming
    LAMP Stack
    CMS Development
    JavaScript
    MySQL
    API Integration
    AngularJS
    Microservice
    PostgreSQL
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    Summary Experience focused on Brownfield and Greenfield projects using JVM languages like Java, Kotlin and Scala to build solutions like API RESTs applying agile methodologies, Having hands on tools like Maven, Gradle, Spring and others such as Docker, AWS. GCP, GIT, Jfrog, Sonar, Nexus. asynchronous process implemented on Kafka, applying techniques oriented to care code quality: peer programming, profiling, code review, clean code, check style, collaboration with teams with multiple profiles in order to solve, communicate, push and making the things happen, always in continuous learning.
    Featured Skill API Development
    IVR Software
    Google Chrome Extension
    Secure SDLC
    QA Software & Testing Tools
    MLOps
    DevOps
    PBX
    VoIP Administration
    FreePBX
    Apache Kafka
    Redis
    Microservice
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    Software Developer with 4 years of experience in developing complex systems and desktop/web applications. Proficient in Python, SQL, C++, and Django, with strong communication skills and a self-taught approach. I have worked on diverse projects, including creating a ticketing and credit control system for a whisky event in Ushuaia, developing software at the multinational Amdocs, and currently working on a core banking system using C++. I am seeking opportunities that allow me to continue learning, improve my skills, and grow professionally in the field of software development.
    Featured Skill API Development
    CSS
    HTML
    PostgreSQL
    Django
    Godot
    Web Development
    Scripting
    Script
    SQL
    Linux
    C++
    JavaScript
    Python
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Summary I've been working with PHP and web technologies for over 15 years now. As a developer I have the technical expertise in developing fully optimized sites and applications with customer-centric solutions. Over the last years I created and developed PHP/MySQL applications using services from different companies like Facebook, Google, Bing to display clear and accurate stats for our customers through a clientfacing scorecard using technologies like VueJS as well as RestFUL APIs with multi-tenancy infrastructure and databases. I want to find a position that is both challenging and rewarding, in order to continue to expand my knowledge and abilities as a Full Stack Software Engineer
    Featured Skill API Development
    Docker
    Agile Software Development
    Cross Functional Team Leadership
    SQL
    Vue.js
    API Documentation
    API Framework
    RESTful API
    English
    GitHub
    JavaScript
    MySQL
    PHP
    Laravel
  • $12 hourly
    • 0.0/5
    • (0 jobs)
    I am a backend software developer with experience creating scripts focused primarily on website scraping for those looking to collect information for educational, statistical, automatable, or machine learning purposes. Also have experience with REST API design and use.
    Featured Skill API Development
    JSON API
    API
    REST API
    English
    Spanish
    Scripting
    Script
    Web Scraping
    Python
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    Greetings! Are you in search of a brilliant and dynamic software engineer who can elevate your projects to new heights? Look no further! I am here to offer my expertise and passion for building exceptional software solutions. As a talented and driven software engineer based in the vibrant city of Buenos Aires, I bring a fresh perspective and youthful energy to every project I undertake. With an unwavering commitment to excellence, I thrive in fast-paced environments and tackle challenges head-on. My technical prowess is backed by a diverse and extensive tech stack. I am well-versed in TypeScript, Node.js, and Nest.js, which empower me to develop robust and scalable backend solutions. When it comes to crafting captivating user interfaces, I harness the power of React, React Native, and Next.js. With my expertise in tools like Tailwind CSS and Zustand, I ensure sleek designs and smooth user experiences. But that's not all! I possess a comprehensive understanding of essential DevOps practices. From managing SSH connections to containerization with Docker, I am adept at deploying and maintaining applications with efficiency and reliability. With my deep knowledge of version control systems like Git, I ensure seamless collaboration and code management. My track record of success is a testament to my dedication and skill. I have delivered exceptional software solutions for diverse industries, ranging from e-commerce platforms to social networking applications. My ability to analyze complex problems, devise innovative solutions, and implement them flawlessly sets me apart. Beyond my technical acumen, I am a natural collaborator and an effective communicator. I excel in cross-functional teams, fostering productive relationships and enabling smooth project coordination. By actively listening to client needs and leveraging my expertise, I consistently exceed expectations and deliver outstanding results. When you hire me, you're not just gaining a highly proficient software engineer but also a committed partner in your success. I am driven by the desire to create impactful solutions that make a difference in the lives of users. So, are you ready to take your projects to the next level? Let's collaborate and turn your visions into reality. Contact me today to discuss how I can contribute to your success as a dedicated software engineer. Hire me now, and together, we'll create software that will leave your competitors in awe. Looking forward to hearing from you soon! Maickol Vasquez Amador
    Featured Skill API Development
    API
    MongoDB
    Software Development
    RESTful API
    Linux
    NestJS
    FFmpeg
    Tailwind CSS
    HTML5
    Sass
    TypeScript
    JavaScript
    React
    Next.js
    Git
    CSS
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    I am a Backend developer with 4 years of professional experience in developing APIs, microservices, and performing refactoring. Additionally, I graduated from university with a degree in Computer Engineering. My main skills include: * NodeJS with NestJS and ExpressJS * Javascript and Typescript * MySQL and MongoDB * Docker * RabbitMQ * AWS Lambda and S3 *Mobile Apps with Flutter
    Featured Skill API Development
    Back-End Development
    FastAPI
    Flutter
    MongoDB
    MySQL
    Microsoft Azure SQL Database
    AWS Lambda
    RabbitMQ
    Docker
    JavaScript
    ExpressJS
    NestJS
    Node.js
    TypeScript
  • $24 hourly
    • 0.0/5
    • (0 jobs)
    I've been building web apps for more than 10 years and working professionally as a developer for over 5. I focus on writing clean, maintainable code with solid architecture—but always with a practical mindset.
    Featured Skill API Development
    Script
    LLM Prompt
    Node.js
    API Integration
    Software Design Pattern
    Object-Oriented Programming
    TypeScript
    JavaScript
    Scripting
    Web Development
    Web Application
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    ✅ Automation & API Expert | Zapier, Make.com, n8n, MuleSoft, Custom Integrations Hi! I'm a Cloud Architect and Automation Specialist with 15+ years of experience helping startups and enterprises simplify operations, connect systems, and save time through smart automation. I've worked with top global firms like Accenture and Deloitte, delivering reliable and scalable solutions using tools like: Zapier, Make.com, and n8n for no-code/low-code workflow automation MuleSoft and custom APIs for enterprise-grade integrations REST, JSON, webhooks, HTTP modules, and more for custom logic and connectivity 💼 What I Can Help You With: Automate repetitive tasks (CRM, email, marketing, lead gen, invoicing, etc.) Build API integrations across cloud tools (e.g. HubSpot, Notion, Slack, Google Suite) Troubleshoot or optimize broken automations Design robust workflows for SaaS, agencies, ecommerce, or internal tools Migrate or redesign outdated automation systems 🧠 Why Work With Me? I combine deep technical knowledge with business thinking. That means: You get solutions that scale with your business I communicate clearly, meet deadlines, and take ownership I bring enterprise-level standards to every project—big or small If you're looking for someone who can turn complex systems into smooth, automated flows, you're in the right place. 📩 Let’s talk about your goals and how I can help you move faster with automation.
    Featured Skill API Development
    n8n
    Zapier
    Make.com
    Python
    Node.js
    RAML
    API
    Mulesoft
  • $12 hourly
    • 0.0/5
    • (0 jobs)
    mi nombre es Nicolas Maximiliano Costabli con 10 años en el Mundo de la Tecnologia, Informatica y Hardware Gamer, con Muchos Cursos de Informatica y conosco mucho de PC
    Featured Skill API Development
    JavaScript
    Tailwind CSS
    CSS Grid
    CSS 3
    HTML5
    Blog Development
    Computer Maintenance
    Google Workspace
    Microsoft Office
    Administrative Support
    Email Management
    Data Entry
    Next.js
    Web & Mobile Design Consultation
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