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QuarkUp Studio

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Independent full-stack developer

Nelson Guerreiro.
From operations to digital products.

My background combines web and mobile development, operations management and years of hands-on IT experience. It helps me build tools that serve the people who use them.

Experience

Technical skills. Real-world perspective.

2005—2022

Operations Director · NC Services

Operational and commercial management, teams, payroll, field organisation, administration and customer relationships in a demanding environment.

2009—2013

Managing Director · Contrôle Ingénierie Services

Quality control methods and operational supervision for automotive industry subcontractors.

Since 2006

Hands-on IT practice & continuous learning

Web development, PC building and repairs, Windows and Linux, Bash, hardware diagnostics, MacBook Pro microsoldering and audio / MIDI environments.

2023

French RNCP level 6 qualification · La Capsule

Professional training in design, project management, data, development and production deployment of web and mobile applications.

Since 2023

Freelance full-stack developer · QuarkUp Studio

End-to-end delivery of premium websites, e-commerce, web apps, SaaS, mobile and business platforms, with client support and incremental releases.

Skills & tools

Front-end & experience

TypeScriptJavaScriptReactNext.jsReact NativeAngularVue.jsTailwind CSSFigmaAffinityHTML5CSS3

Back-end & APIs

Node.jsNestJSExpress.jsPHPSymfonyTwigAPI RESTAuthenticationRoles & permissions

Data & infrastructure

PrismaPostgreSQLMySQLMongoDBDockerVercelAWS S3R2GitGitHub

CMS, commerce & acquisition

WordPressWooCommercePrestaShopJoomlaTechnical SEOSEO localAnalytics

Systems & hardware

LinuxBashPC buildingDiagnosticRepairsMacBook Pro microsolderingBackupsUser support

Audio & creative technology

DAWAudio / MIDIAudio interfacesDriversPlug-insRoutingMonitoringOptimisation

Education & certifications

French RNCP qualification · level 6

Web & mobile application developer — French RNCP level 6

La Capsule / France Compétences · 04/09/2023

Professional qualification in design, project management, databases, web and mobile development, and production deployment.

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JavaScript

Dyma · 10/02/2021

Fundamentals, functions, DOM, asynchronous programming and code structure.

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Angular 16

Dyma · 28/02/2021

Components, routing, RxJS, reactive forms, services and dependency injection.

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Vue.js 2

Dyma · 18/09/2021

Components, lifecycle, Vuex, vue-router, events and dynamic interfaces.

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TypeScript

Dyma · 10/02/2021

Types, interfaces, classes, generics, modules and JavaScript interoperability.

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Tailwind CSS

Dyma · 04/03/2024

Responsive design, themes, dark mode, animations and interface optimisation.

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Node.js

Dyma · 24/03/2021

HTTP servers, files, Express, MVC, middleware, REST APIs, security and deployment.

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PHP & Symfony

Dyma · 06/08/2022

Object-oriented PHP, MVC, Doctrine, Twig, forms, validation and security.

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Docker

Dyma · 31/08/2023

Images, Dockerfile, Compose, volumes, networking, isolation and build optimisation.

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WordPress

Dyma · 18/07/2024

Themes, plugins, ACF, Gutenberg, hooks, shortcodes, SEO and security.

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Profile & CV

Take my CV with you.

Two presentations of my background, skills and projects.

PDF documents in French

Your direct contact

Your next project starts with a conversation.

An idea to bring to life, a website to rethink or a tool to improve? Let’s discuss what you need.

Tell me about your project