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Hi, I'm Roberto

Roberto Saliola

Senior Full Stack Developer – Backend Focus at Colossus Digital

As a child, I used to watch my uncle, a computer technician, disassemble and reassemble computers, fascinated by every single component. That’s where my passion for technology began, growing over time until it became my profession.

I come from the hospitality industry, where I worked as a hotel receptionist, but after 2020 I decided to invest in my true passion: technology.

Today, at Colossus Digital, I design and develop robust backends and efficient APIs for high-availability distributed systems. I work with NestJS, MongoDB, and Angular on services handling thousands of concurrent requests.

Clean architecture, API design, and data modeling are my daily bread. Code must be sustainable over time, not just work today — that’s my philosophy.

When I’m not writing code, I enjoy walking in the countryside with my dog, experimenting in the kitchen (especially vegetarian dishes), and dedicating time to personal projects and experiments.

I’d love to connect. Reach out below!

Experience

1
Colossus Digital

March 2026 - Present

Rome, Italy (Hybrid)

Senior Full Stack Developer – Backend Focus

March 2026 - Present

Responsibilities:
  • Design and development of scalable, high-performance services in distributed environments in the blockchain world
  • Backend services with NestJS and MongoDB, focusing on API design, data modeling, and performance
  • Frontend development with Angular for reactive user interfaces
  • Strong emphasis on clean architecture, reliability, and maintainability
  • Key technologies: TypeScript, NestJS, MongoDB, Angular, Node.js, Blockchain
Accenture

May 2022 - March 2026

Rome, Italy (Hybrid)

Custom Software Engineering Analyst

July 2024 - March 2026

Responsibilities:
  • Design and development of a Backend-for-Frontend architecture for an internal application
  • Development and maintenance of the backend with NestJS and MongoDB
  • Collaboration with the frontend team on SvelteKit development, combining technical support and direct code contributions
Custom Software Engineering Analyst

January 2024 - March 2026

Responsibilities:
  • Development and maintenance of a CRM for a leading postal and logistics services company
  • Product evolution with Angular 15, RxJS, and NgRx, across bug fixing and new features
  • Technical lead role for a team of 6 developers, while staying close to the code
Application Development Associate

February 2023 - January 2024

Responsibilities:
  • Development of an onboarding platform for a public sector organization based on microservices and microfrontends
  • Delivery of frontend and backend components with React, Redux, Node.js, Express.js, and PostgreSQL
  • Contribution to performance and scalability improvements through targeted optimizations
Application Development Associate

October 2022 - February 2023

Responsibilities:
  • Refactoring of an internal application for a telecommunications operator
  • Frontend stack upgrade with React, TypeScript, SCSS, and Bootstrap
  • Direct contribution to the modernization of both the codebase and the application
Internship

May 2022 - October 2022

Responsibilities:
  • Frontend development of a web application with React
  • First hands-on experience in web development, with attention to clean and efficient code
2

Skills

JavaScript
JavaScript

A core language of the modern web, useful for building frontend and backend with speed and continuity.

TypeScript
TypeScript

Adds structure to JavaScript and makes code more reliable, clear, and maintainable.

React
React

An ideal library for dynamic interfaces and reusable components, helping keep products organized and easier to evolve.

Angular
Angular

A solid framework for complex applications, especially in enterprise contexts where structure and scalability truly matter.

HTML5
HTML5

The foundation of every web interface, essential for semantic, accessible, and well-structured pages.

CSS3
CSS3

Defines the visual layer of a product, with responsive layouts and a consistent experience across devices.

Node.js
Node.js

A modern backend environment that makes it possible to build services and APIs quickly and at scale.

NestJS
NestJS

A structured Node.js framework, useful for modular and maintainable backends designed to grow over time.

Express
Express

A lightweight framework for APIs and web services, effective when simplicity and flexibility are needed.

MongoDB
MongoDB

A NoSQL database suited to flexible data and modern applications, useful when speed and adaptability matter.

PostgreSQL
PostgreSQL

A reliable and mature relational database, ideal when robustness, data consistency, and advanced queries matter.

Git
Git

The standard for version control, essential for working in teams with order and traceability.

Docker
Docker

Containerization makes environments and releases more consistent, reducing friction between development and production.

AI
AI

AI tools like OpenCode accelerate analysis, iteration, and prototyping, increasing both productivity and quality of work.

Projects

Asteroids
Creator 2025

Classic Asteroids game implemented in Python with Pygame. An educational project demonstrating object-oriented programming, Pygame game loop, sprite systems, and collision detection.

personal python pygame game oop
ZSP
Creator & Maintainer 2024

Express-like mini framework for Node.js designed with a radical principle: zero external dependencies. The framework implements routing and request handling using exclusively Node.js native APIs.

personal javascript nodejs rest-api framework
Reservation App
Full Stack Developer 2025 - 2026

Event reservation system with multi-role authentication, event management, and real-time availability. A full stack monorepo that brings together Angular, NestJS, and MongoDB in a single project foundation.

personal typescript angular nestjs mongodb
Demo
AI Agent
Creator 2026

AI agent in Python integrated with Gemini 2.5 Flash, designed to read, write, and execute files, explore directories, and interact with the filesystem conversationally. A didactic project aimed at experimenting with simple, practical, and concrete AI workflows.

personal python ai gemini cli
Paladins Wheelspin
Full Stack Developer 2024

Full stack project organized as a monorepo, with a React and TypeScript frontend and an Express backend on SQLite. A practical base for coordinating interface, APIs, and data persistence within the same development flow.

personal typescript react express sqlite
Python Audio Splitter
Creator 2023

Python utility that splits an audio file into 10-second clips, with support for multiple formats and automatic output handling. A simple but concrete project focused on automation and productivity.

personal python audio automation pydub

Education

Boot.dev
January 2026-Present
Backend specialization program
Extracurricular Activities:
  • A learning path focused on deepening backend development and continuous technical growth
MongoDB University
July 2024
MongoDB Certifications
Extracurricular Activities:
  • Associate Developer
  • Associate Solution Architect
TSI Srl
November 2021-April 2022
.NET Developer Course + Internship
Extracurricular Activities:
  • A path focused on .NET development, completed with an internship experience
Archimede Informatica
February 2021-November 2021
Web Development and Web Design Course
Extracurricular Activities:
  • A training path dedicated to both web development and digital visual design
ITT Cristoforo Colombo
September 2010-July 2016
Technical Diploma in Tourism
Extracurricular Activities:
  • School education that strengthened language and interpersonal skills

Recent Posts

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I wrote an AI agent!

We now live surrounded by AI. We find it everywhere: in the browser, on our phones, even in our operating systems (coff coff Microsoft). Although I’m generally skeptical of the FOMO that often spreads through the tech world, one thing is hard to deny: AI is a powerful tool and it’s here to stay. For this reason, for some time I’ve felt the need to better understand how the tools we now use every day actually work: Claude Code, GitHub Copilot, OpenCode, and many others. And, as a programmer, the most natural way for me to learn something has always been the same: writing code.

    Thursday, March 12, 2026 | 5 minutes Read