Ranieri Vannozzi
Senior Software Engineer · Freelance
Experienced software engineer with over 15 years in enterprise application development. Passionate about clean architecture, cloud-native technologies, and scalable web platforms. Strong background in leading development teams and delivering robust B2B solutions.
Overview
I am a Senior Software Engineer with solid experience in developing enterprise software solutions. I design and implement cloud-based, mobile, advanced CRM, e-commerce systems and business management platforms, combining a clear architectural vision with a full-stack operational approach. I actively support the team in defining the architectural design and distributing tasks, promoting a shared, clear and sustainable development process. I have gained experience in coordinating work groups, encouraging collaboration and the adoption of good technical practices. With a solid and result-oriented technical approach, I transform complex requirements into effective digital solutions, selecting appropriate technologies for building integrated systems that enable innovation and foster project growth.
Education
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English Language and Culture - B2 Level
Formatica Scarl (2025)
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Master in Project Management and Agile
24Ore Business School (2023)
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Planning and Development of Web Applications
IDI Informatica (2010)
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Information Engineering (interrupted)
Università degli Studi di Firenze (2007)
Keys
- IT Leadership
- Fullstack Software Development
- Infrastructure Management
- IT & Technology Planning
- Team Leadership & People Management
- Agile / Scrum / Kanban Methodologies
Career
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Freelance Consultant
HeroHubs (Remote) · 01/2025 - Present
- Design, development and architectural consulting for cloud-native enterprise solutions
- Node.js & Microservices: design and development of microservices architectures using NestJS and TypeScript, and a desktop payment checkout application built with Electron
- Reactive Banking Platform: high-throughput banking solutions with Java and Spring WebFlux within a microservices ecosystem hosted on Azure
- Modern Frontend & Cloud: web applications and frontend interfaces with Angular 21, HTMX, JSX/TSX and Tailwind CSS, plus cloud-native and serverless backend services on AWS (Lambda, Cognito, S3, SES, SST)
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Head of IT Platform Product Development
Polaris Engineering S.p.a. (Milan, Italy) · 01/2024 - 10/2024
- Head of IT Platform Product Development on 'Assistant' product
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Project Manager / Technical Leader
Polaris Engineering S.p.a. (Milan, Italy) · 03/2023 - 01/2024
- Technical Leader on 'Assistant' product
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Head of Software Development / Technical Leader / Senior Full Stack Developer
Greysolutions Srl (Milan, Italy) · 09/2021 - 03/2023
- Projects management of organization
- Technical Leader
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Team Lead - Senior Full Stack Developer
Tech Solutions S.r.l. (Milan, Italy) · 09/2020 - 09/2021
- Team Lead on 'Contact Center' product
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Senior Full Stack Java Developer
Tech Solutions S.r.l. (Milan, Italy) · 04/2020 - 08/2020
- IT Consultant at BST – Banking Software Training
- Software developer on 'FinOffice Light' product
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Team Lead - Senior Full Stack Developer
Tech Solutions S.r.l. (Milan, Italy) · 10/2019 - 03/2020
- IT Consultant at Vipera P.l.c.
- Team Leader of Pistoia dev. group on 'NPL - Nuova Piattaforma Lottery' product
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Team Lead - Senior Full Stack Developer
Onetech S.r.l. (Florence, Italy) · 10/2017 - 10/2019
- IT Consultant at Vipera P.l.c.
- Team Leader of Florence dev. group on 'NPS - Nuova Piattaforma Servizi' product
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Senior Full Stack Developer
Onetech S.r.l. (Florence, Italy) · 01/2017 - 10/2017
- IT Consultant at Vipera P.l.c.
- Software developer on 'MoRe - Motif Reward' product
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Full Stack Developer
Onetech S.r.l. (Florence, Italy) · 10/2012 - 01/2017
- IT Consultant at Infogroup S.c.p.A.
- Software developer on 'Ncg - Nuova Contabilità Generale', 'Manuale Operativo Voci Contabili', 'Gti - Gestione Transitori Interprocedurali', 'eBass', 'MPP - Monitor Processo Produttivo' products
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Developer
Onetech S.r.l. (Florence, Italy) · 07/2012 - 10/2012
- Software developer on 'De Manager' product
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Developer
Onetech S.r.l. (Florence, Italy) · 07/2011 - 07/2012
- Software developer on 'Sia Configuration System' product
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Developer
Onetech S.r.l. (Florence, Italy) · 11/2009 - 07/2011
- Software developer on 'Portafoglio Clienti' product
Skills
Leadership
- IT Management
- Project Management
- Planning & Prioritization
Cloud Platforms
- AWS
- Azure
- Google Cloud Platform
Infrastructure
- CI / CD
- Git / GitFlow
- GitHub
- GitLab
- Jenkins
- Docker
- Kubernetes
Backend Technologies
- Java
- Kotlin
- Spring Boot
- Spring WebFlux
- Node.js
- NestJS
- Bun
- PostgreSQL
- MySQL
Frontend Technologies
- Angular
- Nx
- TypeScript
- JavaScript
- Electron
- CSS
- HTMX
- JSX
- TSX
- Astro
- Tailwind CSS
Interests
- Exploring new technologies and development tools during personal time
- Taking long road trips to discover new places and local cultures
- Listening to a wide range of music, from rock to electronic and jazz
- Spending time outdoors with my family and enjoying nature
- Reading books across different genres
- Working on personal projects and learning how to do things independently
- Enjoying cooking and experimenting with new recipes
Personal Projects
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Founder & Author
HeroHubs
2025 - PresentHeroHubs is my tech blog and the brand I work under as a freelance developer. I publish articles in English and Italian on software development, architecture and artificial intelligence, written from what I run into on real projects.
- Published more than 50 articles in two languages on tools, architectural choices and AI, from Claude Code and open models to serverless platforms.
- Designed and built the site with Astro: bilingual content, per-language RSS feeds and a fully static deployment on GitHub Pages.
- Run the editorial workflow end to end, from writing and AI-assisted translation to cover design and LinkedIn promotion.
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Co-Founder / Frontend Developer
FoodnWords S.r.l.s.
2015 - 2017Co-founded a startup focused on language learning. Designed and developed the entire front-end architecture of the platform using AngularJS, ensuring a responsive and consistent experience across web and mobile interfaces.
- Designed and developed the front-end architecture using AngularJS, ensuring modularity and scalability.
- Collaborated with the back-end team to integrate RESTful APIs and ensure a seamless user experience.
- Contributed to the deployment of native Android and iOS apps as part of the broader multi-platform product strategy.
Latest Articles
I write about software development, architecture and artificial intelligence on HeroHubs, in English and Italian.
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AI · Oct 2026
Claude Design and Pomelli: the brand as context an AI can read
Claude Design derives a team design system from its code, Pomelli derives a small business Business DNA from its website. Two different products reach the same conclusion: consistency does not come from the prompt but from a profile extracted once and reused every time.
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Development · Sep 2026
Performant npm: the package manager that rethinks node_modules
Performant npm is not just a faster npm. The global store with hard links and the strict node_modules structure change the way a JavaScript project declares and uses its dependencies.
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AI · Aug 2026
Paperclip: building AI agent companies with an org chart
Paperclip lets you design an org chart of AI agents that collaborate like the departments of a real company. A CEO, a writer, an engineer, an editor and a designer who split the tasks, work in parallel and ask for confirmation when it matters.
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AI · Aug 2026
DeepSeek locally: integrating an open model into SaaS without paying for APIs
Running DeepSeek on your own machine turns the variable cost of APIs into a fixed hardware cost. A reasoning on when it pays off, how it is done, and which other open models to evaluate for next-generation intelligent SaaS.