Andrea is available for hire
Hire AndreaAndrea Reni
Verified Expert in Engineering
Back-end Developer
Milan, Metropolitan City of Milan, Italy
Toptal member since October 10, 2022
Bio
Andrea is highly passionate about the software engineering industry. He loves building and working on colossal and complicated infrastructures. Andrea has a background in mathematics and is proficient in a range of programming languages. He is an AWS Certified Solutions Architect, a Google Cloud Certified Engineer, and an Anthropic Claude Certified Architect. For more than 20 years, he has been delivering high-quality and user-rich solutions for clients all around the globe.
Portfolio
Assist Digital SpA
Cloud Architecture, Google Cloud Platform (GCP), Azure...
Assist Digital
Amazon CloudFront CDN, Amazon Cognito, Amazon DynamoDB...
Nebula 7
TypeScript, Node.js, MongoDB, MySQL, REST APIs, GraphQL, JavaScript, Docker...
Experience
- JavaScript - 12 years
- REST APIs - 12 years
- TypeScript - 8 years
- Node.js - 8 years
- Amazon Web Services (AWS) - 5 years
- Claude API - 2 years
- Agentic Workflow Design - 2 years
- AI Agents - 2 years
Work Experience
Solutions Architect
2024 - PRESENT
Assist Digital SpA
- Designed and managed scalable and resilient architectures.
- Ensured optimal performance, security, and flexibility.
- Worked with technologies like Terraform, GCP, Azure, and AWS.
Technologies: Cloud Architecture, Google Cloud Platform (GCP), Azure, Amazon Web Services (AWS), AWS Lambda, Full-stack Development, API Integration, OpenAI, Back-end, Terraform, Cloud Infrastructure, Back-end Development, Design Patterns, Object-oriented Programming (OOP), Microservices, Scalability, SQL, Database Design, Database Management, Redis Cache, Microservices Architecture, Artificial Intelligence (AI), Amazon S3 (AWS S3), Slack, OpenAI API, Slack API, Data Pipelines, SaaS, Large Language Models (LLMs), Data Encryption, Generative Artificial Intelligence (GenAI), ISO 27001, Kubernetes, On-premise, Redis, Apache Kafka, OpenAI SDK, AI Integration, GitLab CI/CD, Distributed Systems, Distributed Architecture, Cloud, Web Scalability, OpenAPI, Technical Leadership, Swagger, Agentic AI, CI/CD Pipelines, Infrastructure
Senior Back-end Engineer
2023 - PRESENT
Assist Digital
- Designed, developed, and deployed the whole infrastructure for delivering the AI services built by the AI team.
- Designed, developed, and deployed the public API offered by the SaaS.
- Developed, designed, and deployed an array of custom products and solutions that use Artificial Intelligence for very different types of clients.
Technologies: Amazon CloudFront CDN, Amazon Cognito, Amazon DynamoDB, Amazon Simple Queue Service (SQS), Amazon Cognito User Pools, Amazon Web Services (AWS), API Gateways, AWS SDK, AWS Command Line Interface (CLI), JavaScript, Node.js, TypeScript, REST APIs, Puppeteer, Minimum Viable Product (MVP), DevOps, Continuous Delivery (CD), Continuous Development (CD), Amazon Simple Notification Service (SNS), Serverless Framework, Software Architecture, Architecture, APIs, Cloud Architecture, Cloud Computing, AWS Lambda, Full-stack Development, Lambda Functions, Stripe API, API Integration, PayPal API, OpenAI, Back-end, Terraform, Cloud Infrastructure, Back-end Development, Design Patterns, Object-oriented Programming (OOP), Microservices, Scalability, SQL, Database Design, Database Management, Redis Cache, Microservices Architecture, Artificial Intelligence (AI), Amazon S3 (AWS S3), Slack, OpenAI API, Slack API, Data Pipelines, SaaS, Large Language Models (LLMs), Generative Artificial Intelligence (GenAI), ISO 27001, Kubernetes, On-premise, Redis, Apache Kafka, OpenAI SDK, AI Integration, Distributed Systems, Distributed Architecture, Cloud, Web Scalability, OpenAPI, Technical Leadership, Swagger, Agentic AI, CI/CD Pipelines, Infrastructure
Senior Solutions Architect
2015 - PRESENT
Nebula 7
- Passed the AWS Certified Solutions Architect exam.
- Built an application for Campari's most qualified bartenders' secret club.
- Created an interactive video installation for the Venice Biennale of Architecture.
- Trained a generative adversarial neural network with TensorFlow at Ars Electronica using the supercomputer of ETH University in Zurich.
- Developed an augmented reality (AR) application for an exhibition in Saint Petersburg.
- Built a framework used by hundreds of websites and eCommerce that made my clients earn more than €1 million.
- Won the Best Website of the Day and the Best Developer of the Day awards given by Awwwards, a professional web design and development competition body.
- Developed a digital synthesizer downloaded by hundreds of people.
Technologies: TypeScript, Node.js, MongoDB, MySQL, REST APIs, GraphQL, JavaScript, Docker, Bash Script, Rust, Apollo Server, GLSL, Cloud Firestore, PostgreSQL, Express.js, Knex.js, Konva, Puppeteer, TensorFlow, Docker Compose, Firebase, Amazon Web Services (AWS), Google Cloud Platform (GCP), Azure, HAProxy, Touch Design, Max/MSP/Jitter, Arduino, Raspberry Pi, GPG, Vim Text Editor, FFmpeg, SOX, Systemctl, Launchd, Zsh, Minimum Viable Product (MVP), DevOps, Continuous Integration (CI), Continuous Delivery (CD), Continuous Development (CD), Architecture, APIs, Cloud Architecture, Cloud Computing, AWS Lambda, Full-stack Development, Lambda Functions, API Integration, Netlify, Mailgun, Retool, OpenAI, Back-end, Data Scraping, Web Scraping, Terraform, Cloud Infrastructure, WhatsApp API, Back-end Development, Design Patterns, Object-oriented Programming (OOP), Microservices, Scalability, SQL, Database Design, Database Management, Redis Cache, Microservices Architecture, Amazon S3 (AWS S3), Slack, OpenAI API, Slack API, Data Pipelines, SaaS, Large Language Models (LLMs), Generative Artificial Intelligence (GenAI), Prompt Engineering, On-premise, Redis, Web Development, Payment Gateways, Web Scalability, Video Processing, Video Streaming, Videos, OpenAPI, Swagger, Internet of Things (IoT), Agentic AI, CI/CD Pipelines, Infrastructure
Senior Back-end Engineer
2022 - 2023
Botshelf.ai
- Designed, developed, and deployed the whole infrastructure for delivering the AI services built by the AI team.
- Designed, developed, and deployed the public API offered by the SaaS.
- Developed and designed the platform's billing system for accepting the final user's credit cards.
Technologies: Amazon Web Services (AWS), TypeScript, Amazon DynamoDB, Amazon CloudFront CDN, Amazon Cognito User Pools, Amazon Simple Queue Service (SQS), Amazon Cognito, AWS Command Line Interface (CLI), AWS SDK, Amazon Simple Notification Service (SNS), Serverless Framework, Serverless Architecture, Software Architecture, Continuous Delivery (CD), Continuous Integration (CI), Continuous Development (CD), API Gateways, APIs, Cloud Architecture, Cloud Computing, AWS Lambda, Full-stack Development, Lambda Functions, Stripe API, API Integration, PayPal API, Stripe, OpenAI, Back-end, Data Scraping, Web Scraping, Terraform, Cloud Infrastructure, Back-end Development, Design Patterns, Object-oriented Programming (OOP), Microservices, Scalability, SQL, Database Design, Database Management, Microservices Architecture, SaaS, Large Language Models (LLMs), Generative Artificial Intelligence (GenAI), AI Integration, Cloud, Payment Gateways, OpenAPI, Swagger, CI/CD Pipelines, Infrastructure
CTO
2014 - 2023
Socialrise
- Developed and deployed dozens of websites and web apps for clients worldwide.
- Created an augmented reality application for the fashion brand Fila.
- Built an augmented reality application for the fashion brand Santoni.
- Made an audio installation for the brand Nemozena at Dubai Design Week.
Technologies: JavaScript, TypeScript, MySQL, MongoDB, Docker, PHP, WebGL, Augmented Reality (AR), Docker Compose, Google Cloud Platform (GCP), Apache, cPanel, Web Host Manager (WHM), REST APIs, Minimum Viable Product (MVP), Full-stack, APIs, Full-stack Development, API Integration, PayPal API, Stripe, Netlify, Mailgun, Back-end, Data Scraping, Web Scraping, Back-end Development, Design Patterns, Object-oriented Programming (OOP), Microservices, SQL, Database Design, Database Management, Microservices Architecture, SaaS, Vercel, Web Development, Payment Gateways, Web Scalability, Video Processing, Video Streaming, Video Uploading, Videos, OpenAPI, Internet of Things (IoT), CI/CD Pipelines, Infrastructure
Lecturer
2020 - 2020
Architectural Association
- Acted as a lecturer at the Architectural Association School of Architecture for the Psychotropic Topologies summer program.
- Taught the students how to develop Python patches for TouchDesigner.
- Held lessons to the students on the basics of Python programming language.
Technologies: Touch Design, Full-stack Development, Mailgun, SQL
Software Architect
2010 - 2016
x71c9
- Developed 100+ websites for clients all around the globe.
- Built a framework used by hundreds of websites and eCommerce that helped my clients earn more than €1 million.
- Developed dozens of eCommerce solutions with a framework I built in PHP, MySQL, and JavaScript.
Technologies: Amazon Web Services (AWS), PHP, Node.js, TypeScript, Minimum Viable Product (MVP), Full-stack, APIs, Full-stack Development, Stripe API, API Integration, Stripe, Netlify, Mailgun, Back-end, SQL, Database Design, TypeORM, Data Encryption, Vercel, Astro, Web Development, Video Uploading, Videos, Internet of Things (IoT), Robotics
Lecturer
2012 - 2015
IED
- Acted as a lecturer on the Web Communication course. The full path of the course allows students to address all phases of developing an internet website.
- Held classes for dozens of students in the programming language PHP and the database MySQL.
- Taught dozens of students the markup languages HTML, sheet style language CSS, and programming languages JavaScript.
Technologies: PHP, MySQL, JavaScript, SQL, Database Design
Software Engineer
2010 - 2011
Man-Super
- Designed and developed a new open-source CMS called Camargue.
- Developed and deployed a website and web apps using Camargue.
- Sharpened my PHP, MySQL, JavaScript, HTML, and CSS programming skills.
Technologies: JavaScript, SQL, Database Design
Software Engineer
2009 - 2010
Klever
- Implemented web services with technologies like Apache Axis 2.
- Gained skills in the implementation of web services with technologies such as JAX-WS.
- Developed a software called Documentum in Java. The software was a document manager used by big companies.
Technologies: Java, SQL, Database Design
Project History
Uranio Framework
https://github.com/x71c9/uranio-cliUranio is an ultra-lightweight, type-driven ORM/ODM for TypeScript, supporting MongoDB and MySQL. It automatically generates a fully typed database client by parsing your TypeScript interfaces—there is no need for a custom Data Access Layer (DAL).
Tempesta
https://github.com/x71c9/tempestaTempesta is a fast, lightweight CLI bookmark manager written in Rust, inspired by pass. It embraces the Unix philosophy with intuitive commands and seamless Git integration. Bookmarks are stored in ~/.bookmark-store, where you can easily add, edit, and open URLs—all version-controlled with Git.
Princess of Asturias Awards
https://www.fpa.es/en/princess-of-asturias-awards/A video installation for the Princess of Asturias Awards 2021 in Oviedo, Spain, for the commissioned MAEID project Sylva. The project was launched in collaboration with LOREM.
Nemozena
https://x71c9.com/nzenaIn 2018, I created an immersive audio installation for Nemozena's pavilion during Dubai Design Week.
I developed software connected to six speakers and six motion sensors. The visitors were triggering the sounds as they walked along the perimeter of the installation. Each sensor controlled a different speaker, generating a 3D sound environment. The people were in control of the outcome.
I developed software connected to six speakers and six motion sensors. The visitors were triggering the sounds as they walked along the perimeter of the installation. Each sensor controlled a different speaker, generating a 3D sound environment. The people were in control of the outcome.
Virtua Posse
https://x71c9.com/virtua-posseVirtua Posse is a collective I founded in 2019 with Jacopo Tripodi and Gianluca Lonigro. They mainly focus on extreme aesthetics and coding.
We were asked to host an exhibition at FFTN in Saint Petersburg and showcase our work. For this project, I made an augmented reality experience and a video demo that was shown at RAF25, a techno club inside a Soviet bunker.
We were asked to host an exhibition at FFTN in Saint Petersburg and showcase our work. For this project, I made an augmented reality experience and a video demo that was shown at RAF25, a techno club inside a Soviet bunker.
Ars Electronica
https://x71c9.com/eye-of-the-otherEye of the Other is a project made by MAEID–Future Retrospective Narrative in Linz in 2019 and Phytophilia–Chlorophobia–Situated Knowledge in Bourges.
For this project, I trained a generative adversarial network that can generate echolocation spectrograms of nectar-feeding bats. The installation aims to represent what a bat can see using its ultrasonic range.
For this project, I trained a generative adversarial network that can generate echolocation spectrograms of nectar-feeding bats. The installation aims to represent what a bat can see using its ultrasonic range.
Venice Biennale
I made the video installation for the MAEID project presented at the Biennale of Architecture 2021 in Venice. The project was delivered in collaboration with LOREM.
ZEPHIR
https://zephir.xyzZEPHIR is an additive and subtractive digital synthesizer. It is a Max for Live device and a standalone app for Mac and Windows.
In 2018, ZEPHIR was exhibited at the Tate Modern in London for the Offprint Art Publishing Fair as part of the Giung.la collective stand.
In 2018, ZEPHIR was exhibited at the Tate Modern in London for the Offprint Art Publishing Fair as part of the Giung.la collective stand.
Education
2005 - 2009
Bachelor's Degree in Pure Mathematics
Sapienza University of Rome - Rome, Italy
Certifications
SEPTEMBER 2026 - PRESENT
Claude Certified Architect – Foundations
Anthropic
AUGUST 2025 - PRESENT
Associate Cloud Engineer Certification
Google Cloud
DECEMBER 2023 - PRESENT
AWS Certified Solutions Architect - Associate
Amazon Web Services (AWS)
Skills
Libraries/APIs
Node.js, REST APIs, WebGL, Konva, Puppeteer, FFmpeg, Stripe API, OpenAI API, OpenAPI, Claude API, TensorFlow, PayPal API, Stripe, Slack API, WhatsApp API
Tools
Knex.js, Docker Compose, Vim Text Editor, AWS Command Line Interface (CLI), AWS SDK, Amazon CloudFront CDN, Amazon Simple Notification Service (SNS), Amazon Simple Queue Service (SQS), Amazon Cognito, Terraform, GitLab CI/CD, Terminal, Apache, Zsh, Astro, Slack, Homebrew, GPG, Retool, Claude Agent SDK, Claude Code
Languages
TypeScript, JavaScript, Bash Script, PHP, GraphQL, Max/MSP/Jitter, SQL, GLSL, Rust, Java, C++
Frameworks
Express.js, Serverless Framework, Swagger
Paradigms
DevOps, Continuous Integration (CI), Continuous Delivery (CD), Continuous Development (CD), Serverless Architecture, Design Patterns, Object-oriented Programming (OOP), Microservices, Database Design, Microservices Architecture, Model Context Protocol (MCP)
Platforms
Linux, Docker, Firebase, Amazon Web Services (AWS), AWS Lambda, Netlify, Mailgun, Vercel, Google Cloud Platform (GCP), Azure, cPanel, Arduino, Raspberry Pi, Arch Linux, Kubernetes, Apache Kafka, AWS IoT Core
Storage
MongoDB, Cloud Firestore, MySQL, PostgreSQL, Amazon DynamoDB, Database Management, Amazon S3 (AWS S3), Data Pipelines, Redis Cache, On-premise, Redis
Other
Apollo Server, Touch Design, Minimum Viable Product (MVP), Full-stack, Amazon Cognito User Pools, Software Architecture, API Gateways, Solution Architecture, Serverless, AWS Cloud Architecture, Architecture, APIs, Cloud Architecture, Cloud Computing, Full-stack Development, Lambda Functions, API Integration, OpenAI, Back-end, Data Scraping, Web Scraping, Back-end Development, Scalability, Artificial Intelligence (AI), SaaS, Distributed Architecture, Distributed Systems, GitHub Actions, AI Integration, OpenAI SDK, Web Development, Cloud, Payment Gateways, Web Scalability, Video Uploading, Technical Leadership, Agentic AI, CI/CD Pipelines, Infrastructure, Agentic Workflow Design, AI Agents, Mathematics, Augmented Reality (AR), Web Host Manager (WHM), HAProxy, SOX, Systemctl, Launchd, Large Language Models (LLMs), Data Encryption, Generative Artificial Intelligence (GenAI), Prompt Engineering, Video Processing, Video Streaming, Videos, Internet of Things (IoT), VST, Cloud Infrastructure, NixOS, TypeORM, Cloud Security, ISO 27001, Robotics, AI Agent Orchestration, Agentic AI Systems, LLM Agents, Multi-agent Orchestration, Multi-agent Systems, Anthropic
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