Hire the Best Backend Rest API Freelancers
in Argentina

✅ Top Rated Plus | ✅ 100% Success Score | ✅ Seasoned Professional - 30+ years in IT In the era of artificial intelligence, a comprehensive understanding of architecture, systems design, security, observability, and business requirements has become more valuable than specialized raw coding in software development. Experience plays a significant role in this field, and I am a seasoned professional with over three decades of experience in the IT industry. I work with Cursor & Claude Code and premium models. My current development stack: ✅ Python ✅ Django ✨Anthropic API ✨Gemini API ✨LangGraph/LangChain/LangSmith ✨CrewAI ✅ React ✅ Next.js ✅ HTMX ✅ JavaScript ✅ TypeScript ✅ Django Rest Framework ✅ Selenium Web Driver ✅ TastyPie API ✅ GeoDjango/Postgis My current infrastructure stack: ⚙️AWS Serverless: 👉 Lambda Functions 👉 Step Functions 👉 DynamoDB 👉 SQS 👉 Amplify ⚙️ Google: 👉 Oauth 👉 Google APIs ⚙️ Django Serverless: 👉 Heroku 👉 Railway.app 👉 Google App Engine ⚙️ Bare Metal/VPS: 👉 Linux 👉 PostgreSQL 👉 MySQL 👉 Mail Services 👉 Apache/NGINX Being in the industry since 1992, my career has demanded the development of both technical and commercial skills, as well as management abilities, particularly during the period I ran my own business from 2002 to 2015. Since 2022, I have been pursuing opportunities in software development as a freelancer.

I’m a Backend Developer focused on building reliable and scalable server-side applications using clean code and solid engineering principles. I have hands-on experience developing APIs and backend systems for real business use cases, working closely with teams and stakeholders to deliver practical, production-ready solutions. I mainly work with Python and FastAPI, building clean and efficient APIs for data integration, process automation, and AI-powered chatbot solutions, including integrations with services such as OpenAI to automate interactions and enhance user experiences. I also develop backend services using Java and Spring Boot, creating robust and well-structured solutions while applying SOLID principles and best practices to ensure maintainable and scalable systems. I have experience working with relational databases such as PostgreSQL, MySQL, and SQL Server, focusing on query optimization and overall system performance. Additionally, I deploy applications on AWS, using services like EC2, RDS, and S3, always following scalable and secure architecture practices. Throughout my experience, I’ve contributed to management systems, administrative platforms, and internal business solutions, collaborating closely with frontend teams to ensure the final product aligns with real business needs. As a freelancer, my goal is to deliver reliable, production-ready backend solutions with clear communication and a strong focus on adding real value. If you’re looking for a committed backend developer with solid technical foundations, I’d be glad to help with your project.

Serfe is an ISO 9001:2015 certified company that provides consulting and development services in information technology oriented to Internet. We specialize in the development of (1) websites with Wordpress, (2) E-Commerce stores with Magento, WooCommerce and PrestaShop, (3) develop and maintain large online systems using the latest available technologies (ie: React Native, Angular, NodeJS, PHP, Laravel, Ruby, Python, MySQL, PostgreSQL). Since 2003, we have served as a web and mobile development team to hundreds of companies all over the world, being repeatedly recognized for developing innovative solutions. We are responsible for full lifecycle development of next-generation software, from initial requirement gathering to design, coding, testing, documentation and implementation, merging business and user needs into high-quality, cost-effective solutions while keeping within budgetary constraints. We also known the importance of an effective communication. As we are in Argentina, we have a similar timezone with America and Western Europe, allowing us to take advantages of phone calls and video-conferences to be sure that we are always on the same page on every step we take. Please, contact us if you have any questions, we would be glad to help you.