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Heyther
@heyther_blanco
Software Developer
Colombia
Spanish, English
About me
I'm Heyther, a professional Software Developer with experience building scalable and secure web applications using Java (Spring Boot), .NET (C# / ASP NET Core), and Nodejs (Nest / Express).
I specialize in microservices architectures, event-driven systems (Kafka, RabbitMQ, MQTT), and secure API design with REST, GraphQL, and gRPC. I apply modern engineering principles like Hexagonal, Clean, and Vertical Slicing architectures, and I’m comfortable deploying solutions on Docker, AWS, Azure, and Firebase.
Whether you need a new backend from scratch, API integrations, or help improving.
Skills
Heyther
Offline •
Average response time: 1 hour
See my services
Full Stack Web Applications
I will fullstack web application with angular
API & Integrations
I will build scalable backend, rest API, graphql or microservices
Portfolio
Work experience
Freelancer Developer
Upwork • Freelance
Jan 2025 - Present • 1 yr 8 mos
I design and build distributed systems, web applications, APIs, and end-to-end software solutions focused on efficiency, scalability, and usability. My work often involves modernizing legacy systems, handling complex data migrations, and ensuring secure, compliant data architectures. I focus on creating intuitive platforms that not only support daily operations but also provide meaningful insights through data. With a background in the software development industry and experience working through platforms like Upwork, I bring a practical, results-driven approach to every project, delivering solutions that are reliable, scalable, and built to last.
1 Reviews
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woowreal
Spain
Ongoing collaboration
Good communication and fast delivery. I would hire him again—he's a very good worker.
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