Services

Software Development

Software Development

I specialize in building web applications for businesses of all sizes. Whether you need a simple landing page or a robust system like an ERP, I can assist with every stage: design, development, deployment, hosting, and ongoing maintenance. Let’s turn your ideas into reliable, scalable software solutions tailored to your needs.

IT Support

IT Support

I enjoy solving technical challenges and can assist with a wide range of computer issues, including hardware diagnostics, software troubleshooting, and customer support. If you’re facing any IT problem—big or small—feel free to reach out for fast and friendly help.

Teaching

I am passionate about sharing knowledge and helping others learn. I offer tutoring and guidance in mathematics, physics, programming, software engineering, data analysis, machine learning, and artificial intelligence. Whether you’re a beginner or looking to deepen your expertise, I can support your learning journey.

Contact me 📧

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About me

Who I Am

Hello! My name is Sebastian Aranda Sanchez, I’m from Chile 🇨🇱️ and I work as a Fullstack Software Engineer 👨‍💻️. I’m passionate about Science, Technology, Astronomy, Artificial Intelligence and Education. I studied Computer Engineering at the Federico Santa Maria Technical University (UTFSM, by its acronym in Spanish) in Chile, where I learned the fundamentals of Mathematics, Physics, and Chemistry, and took engineering courses in Computing and Programming, Project Management, Artificial Intelligence (AI), and Machine Learning (ML). At the UTFSM, I got closer to the world of computing and astronomy through the Chilean Virtual Observatory (ChiVO, by its acronym in Spanish) project. I’ve been working for about 8 years as a Software Engineer, mostly as a Fullstack Web Developer, but I enjoy engaging in various areas of computer science and software development. I like working in multidisciplinary teams, learning from others, and creating solutions collaboratively — that’s what motivates me. I’m highly structured, committed, and disciplined in my work, always focused on achieving objectives aligned with the mission of the organization I’m part of. I currently work as a Fullstack Software Engineer at the Vera C. Rubin Observatory 🔭️✨️, where I collaborate with an amazing and diverse team of engineers, astronomers, and scientists, contributing a grain of sand to the discovery of our beautiful and vast universe. I invite you to visit my professional profile on LinkedIn to learn more about what I’m doing.

I also dedicate part of my time to volunteering in social projects. Right now, I’m one of the coordinators of an educational project that belongs to a non-profit foundation: Escuelas Recrear, where I contribute to supporting immigrant children in Santiago, Chile.

In the future, I’m interested in taking technical leadership roles, such as Tech Lead or Software Architect, to help define scalable solutions and guide development teams. You can check out my resume here: CV.

My Skills

I am a fullstack software engineer with comprehensive experience in web development, DevOps, distributed systems, and technology integration projects. Throughout my career, I have been involved in complex projects ranging from user interface development and systems integration to working with sensors and external hardware, always with a pragmatic, collaborative, and solution-oriented approach. In addition, I have experience in technical project management, leading development teams, coordinating multidisciplinary efforts, and ensuring the delivery of solutions aligned with the strategic goals of each organization.

Fullstack Software Engineering

  • Design, development, and maintenance of web applications using modern Frontend and Backend technologies.
  • Design, modeling, and integration of SQL and NoSQL relational databases, including PostgreSQL, MySQL, SQLite, MongoDB, and Redis, with an emphasis on performance, integrity, and scalability.
  • Development of responsive and accessible user interfaces with React and other tools from the JavaScript ecosystem.
  • Implementation of server-side logic with Node.js, Django, FastAPI, and Flask.
  • Building and consuming RESTful and GraphQL APIs for client-server communication.
  • Development of real-time and event-driven systems using WebSockets, Redis Pub/Sub, and brokers like Kafka or MQTT.
  • Automation of processes and backend script development in Python for interaction with hardware via protocols such as Modbus or TCP/IP.
  • Use of version control tools like Git and collaboration platforms like GitHub and GitLab.
  • Collection and processing of data from environmental, industrial, and audio sensors (e.g., microphone outputs).
  • Writing unit, integration, and end-to-end tests to ensure code reliability.
  • Application optimization in terms of performance, scalability, and security.
  • Active participation in code reviews and technical documentation.
  • Integration of third-party services and APIs.
  • Close collaboration with product managers, designers, and other engineers to define and implement technical solutions.

DevOps and Distributed Systems

  • Deployment and monitoring of applications in containerized infrastructure: Docker, Kubernetes, Helm, and ArgoCD.
  • Maintenance of CI/CD pipelines using tools like Jenkins and GitHub Actions.
  • Environment management (development, staging, production) following best practices in access control, isolation, and secrets management.
  • Monitoring system performance and availability with tools like Prometheus and Grafana.

Project Management

  • Experience using agile methodologies like Scrum and Kanban, easily adapting to dynamic contexts and evolving project needs.
  • Experience leading teams in planning, executing, and delivering complex projects, ensuring alignment with strategic goals and customer satisfaction.
  • Coordination of multidisciplinary teams, facilitating communication and collaboration between developers, designers, and other stakeholders.
  • Experience with use and administration of project management tools like Jira, Trello, Confluence, and Docushare.

Artificial Intelligence and Machine Learning

  • Knowledge of AI, Machine Learning, and Data Science fundamentals, acquired through coursework and hands-on projects.
  • Experience using libraries and frameworks like TensorFlow, PyTorch, and scikit-learn for building predictive and classification models.
  • Implementation of AI solutions in web applications, integrating trained models for specific tasks such as data analysis, image analysis or natural language processing.

Hobbies and Interests

I’ve always been curious about our place in the Universe, so I enjoy learning about Astronomy, Nature and Sciences in general. I love watching documentaries on science and technology, as well as reading books and articles on these topics.

As a mileniall and a digital native, I have a strong interest in Technologies and how they can be used to improve our lives. I’m particularly fascinated by the potential of Artificial Intelligence, Machine Learning, and Data Science to transform industries and create innovative solutions. I also have a passion for Open Source Software and believe in the power of community-driven development. Likewise I’ve recently become interested in Blockchain technology and its potential to revolutionize various sectors, including finance, supply chain, and digital identity.

In my free time I like playing Video Games, watching Movies, Series and Documentaries, and spending time with my family. I enjoy listening to Hip Hop, Rap, and Electronic music. I also love Cycling and Hiking in the nature. I also have a strong interest in Education particularly in its role as a tool for social change and empowerment. I believe in the value of sharing knowledge and helping others learn, and I actively seek opportunities to contribute to educational initiatives, whether through mentoring, volunteering, or participating in community-driven teaching projects.