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Nicola LonziNL

Nicola Lonzi

Supermalter

Senior Frontend Engineer - Expert Angular

€450/day
62 projects
Paris, FR
15+ years

Average response time: 12 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 (Angular Expert) 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 architectural design issues, performance problems, and the separation between presentation and business logic, while introducing 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
  • Architecture & processes: Frontend architecture, MVP, CI/CD
  • Tests & quality: Unit & E2E tests (Jest, Playwright/Cypress)
  • Performance & PWA: 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 constantly stay up-to-date and am always available to discuss it with clients and, if the mission type 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 the two Adial process management Frontend Angular applications. In particular, this last phase of the mission concerned the stabilization of ngrx stores, optimization of Nx pipelines, cache optimization and script parallelization, identification and resolution of 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 optimization of 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 application levels, which contributed to improving 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, which optimized 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 carried out 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 application levels, which contributed to improving 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, which optimized 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 unusual and based on "graph", as written in the specifications. Nicola integrated well with our multidisciplinary team. He started the mission well without misunderstandings and respected the negotiated time constraints. He managed the tasks of our agile development process with precision and autonomy. He responded well to our requests and to the dynamism 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

  • Research Doctorate
    Phd, University of Florence, Computer Engineering
    2011

Skill set

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