</> Let's Build Something

SOFTWARE DEVELOPER

Building end-to-end solutions with modern web and mobile stacks. From fullstack business platforms to 3D-printable Spotify keychains, I ship products that people actually use.

5+

Years Experience

3+

Projects Shipped

4+

Companies

sebastian@portfolio:~
$ whoami

Sebastian De Leon — Fullstack Developer @ Reispsolutions

$ cat stack.txt

frontend  Next.js · React · Angular · React Native

backend   .NET · ASP.NET · Node.js · Express

database  MS SQL Server · MongoDB

language  TypeScript · JavaScript · C# · Python

mobile    React Native · Android Jetpack Compose

$ echo $status

Open to new opportunities ✓

Experience

Reispsolutions S.R.L.

Reispsolutions S.R.L.

Junior Software Engineer

  • Demonstrated code agnostic problem-solving by identifying and resolving critical bugs across legacy and modern tech stacks.
  • Operating within Agile methodologies and managing sprints.

Fullstack Developer

  • Architected and developed end-to-end business solutions in collaboration with senior engineers.
  • Engineered cross-platform integrations, streamlining e-commerce data flow and inventory management.
  • Worked on mobile development initiatives to deliver modern, responsive user interfaces.
  • Conducted peer code reviews and assisting in task delegation to optimize workflow efficiency.
Apolo 27 (INTEC)

Apolo 27 (INTEC)

Manufacturing Assistant

  • As manufacturing Assistant in the Remote Controlled Division I worked with a team designing, building and coding a remote controlled rover that is capable of traversing different simulated terrain of mars and Earth's moon and complete complex tasks.
  • Managed the development of the official website and our own games to divulge STEM in the Dominican Republic community.

Telemetry Assistant

  • As part of the Telemetry subteam, I worked on the design and development of the frontend and backend of the official Apolo 27 website and developed an interactive simulation for the NASA Human Exploration Rover Challenge.
Bioingenious Smart Solutions S.R.L

Bioingenious Smart Solutions S.R.L

Biomedical Technician

  • At Bioingenious Smart Solutions (BSS), I collaborated in the medical survey in hospitals and maintenance of medical equipment.
  • I also worked on programming the company's website, successfully integrating it with the company's database through Odoo. This integration improved the online user experience and made it easier to manage and update business information in real time. Additionally, I used Odoo to design custom invoices and efficiently manage the invoicing workflow, thus optimizing administrative and financial processes.

Projects

Printune

Printune

A web application for generating Spotify songs, albums or playlists 3d printable keychains.

Next.jsTailwind CSSThree.jsPythonFastAPI
Apolo 27 website

Apolo 27 website

Official website of Apolo 27 team for NASA HERC 2024 and 2025.

Next.jsTailwind CSS
Clinic Administrator

Clinic Administrator

Simple Web Application to manage a hospital. (CRUD).

ReactTailwind CSSMongoDBExpressNode.js