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Nicola LonziNL

Nicola Lonzi

Supermalter

Senior Frontend Developer - Expert Angular

€450/day
62 projects
Paris, FR
8-15 years

Average response time: 4 hours

Freelancer profile translated to English.
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About Nicola

Senior Frontend Developer - Expert Angular - AI-powered Applications

Senior developer with over 17 years of experience in backend and frontend (PhD in Computer Science). Specializing in Frontend (Expert Angular) and Backend architectures, security, and training

My field experience

For years, I have been helping companies design or refactor complex applications and bring them into production. I focus on identifying and resolving issues with architectural design, performance, and the separation between presentation and business logic, as well as implementing best practices and upskilling teams.

Technical Skills
  • Frameworks and frontend: Angular 21, ZoneLess apps, Angular Universal (SSR), React, Vue
  • Language & tooling: TypeScript, Nx, npm libraries
  • State & reactivity: NgRx, Signals, RxJS
  • Tests & quality: Unit & E2E tests (Jest, Playwright/Cypress)
  • Performance: Perf optimization, Core Web Vitals, PWA
  • AI & generation: GenAI, LLMs, AI integration, agentic apps
  • AI-assisted tools: Claude AI, Cursor, GitHub Copilot
  • Backend & API: Node, NestJS, Express, PostgreSQL
  • Automation & low-code: n8n
  • Containers & deployment: Docker, Cloud (Azure, AWS)
  • UI libraries & design system: Angular Material, Bootstrap, Tailwind
AI and Dev:**State**of**the**Art

The creation of AI-powered applications is a new and rapidly growing field.
I stay constantly updated and am always available to discuss it with clients and, if the type of mission allows, introduce new tools.
  • French

    Fluent

  • English

    Fluent

  • Italian

    Native or bilingual

  • German

    Conversational

  • Portuguese

    Conversational

Remote only
Primarily works remotely

Experience

  • ADIAL
    Malt logoOn Malt
    Frontend Angular and Web Integration - 3
    SOFTWARE PUBLISHING
    October 2025 - December 2025 (3 months)
    Refacto App PART - 3

    Final part of the refactoring of two Adial process management Frontend Angular applications. In particular, this last phase of the mission focused on stabilizing NgRx stores, optimizing Nx pipelines, optimizing caches and parallelizing scripts, identifying and resolving bundle weaknesses, security issues, and optimization. Additionally, there was a focus on training and skill transfer to other team members to ensure continuity in my absence. Last point: full coverage of unit, integration, and E2E tests, as well as optimizing the use of reactive programming and appropriate patterns at each application level.
    Nx Angular Developer NgRx Angular Jest
  • ADIAL
    Malt logoOn Malt
    Frontend Angular and Web Integration - 2
    SOFTWARE PUBLISHING
    July 2025 - October 2025 (3 months)
    Refacto App PART - 2

    During this project, as Frontend Lead Dev, I guided the refactoring of two Angular applications using Nx for monorepo management. I created shared libraries to promote code reuse and improve application structure. The use of NgRx allowed for the refactoring of business logic, while signals were integrated to manage templates in zoneless mode.

    I also introduced patterns and best practices at all levels of the application, contributing to improved code maintainability and readability. Unit, integration, and end-to-end tests were implemented, using Jest and Cypress to ensure code quality.

    Finally, I automated tasks with Husky for pre-commit and pre-push hooks, optimizing the workflow. I also took charge of upskilling junior developers, guiding them in adopting these new practices.
    Nx Jest Angular Developer NgRx Responsive Integration
  • ADIAL
    Malt logoOn Malt
    Lead Frontend Dev - Expert Angular, Ngrx, Nx
    SOFTWARE PUBLISHING
    April 2025 - July 2025 (3 months)
    During this project, as Frontend Lead Dev, I refactored two Angular applications using Nx for monorepo management. I created shared libraries to promote code reuse and improve application structure. The use of NgRx allowed for the refactoring of business logic, while signals were integrated to manage templates in zoneless mode.

    I also introduced patterns and best practices at all levels of the application, contributing to improved code maintainability and readability. Unit, integration, and end-to-end tests were implemented, using Jest and Cypress to ensure code quality.

    Finally, I automated tasks with Husky for pre-commit and pre-push hooks, optimizing the workflow. I also took charge of upskilling junior developers, guiding them in adopting these new practices.
    NgRx Nx Angular Frontend Development Training

Reviews

5.0

Out of 38 ratings

J

Jerome

Mon Ami Poto

Reviewed on 2/22/2024

N/A. Very professional, the work is of high quality, respecting deadlines.
Francesco MariaFM

Francesco Maria

MeshUp Education

Reviewed on 12/2/2019

Nicola is an excellent front-end developer, specializing in Angular. He created the graphical interface, which was unconventional and based on "graph", as specified. Nicola integrated well with our multidisciplinary team. He started the mission smoothly without misunderstandings and respected the agreed-upon time constraints. He managed tasks from our agile development process with precision and autonomy. He responded well to our requests and the dynamics of our company.

Recommendations

Rupert SchiesslRS
FU
Jonathan-David S.JS
Rupert Schiessl and 2 other people have recommended Nicola

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Education

  • Doctorat de recherche
    Phd, Université de Florence, ingénierie informatique
    2011

Skill set

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