Valentina VittoriaFull-stack developer

Independent developer · Based in Germany · Working worldwide

I build digital products from idea to production.

I help startups and businesses turn ideas and existing products into reliable web applications.

Selected work

01 — 11
01

TRAC Explorer

A blockchain explorer for real-time network, transaction and address data.

TRAC Explorer project preview
FrontendRealtime dataSecurityDeployment
02

TRAC Faucet

A full-stack faucet application built for the TRAC testnet ecosystem.

TRAC Faucet project preview
ArchitectureFull-stackSecurityWorkersDeployment
03

TAPScope Marketplace

A Bitcoin-based digital asset marketplace with wallet integrations and transaction flows.

TAPScope Marketplace project preview
Full-stackREST APIWalletsBitcoinDocker
04

Billy Board

A privacy-first quotation tool that turns a repetitive manual task into a simple browser-based workflow.

Billy Board project preview
ProductUXFrontendPDF generation
05

AG Pulizie

A business website designed and developed for a professional cleaning company, with lead generation, search visibility and analytics in mind.

AG Pulizie project preview
Web designFrontend developmentResponsive designContact flowSEOAnalyticsDeployment
06

Spiritory

Backend development for a production marketplace for collectible spirits.

Spiritory project preview
Backend developmentAPIsMarketplace logic
07

Ethereum Explorer Study

An exploratory blockchain project built to study Ethereum data, transactions and block explorer interfaces.

Ethereum Explorer Study project preview
FrontendEthereumBlockchain dataTechnical research
08

TAPScope Swap

Technical development, deployment and security work on a Web3 swap application.

TAPScope Swap project preview
Technical ownershipDeploymentSecurityDebuggingMonitoring
09

TAPScope Bridge

Technical maintenance, deployment and security improvements for a Web3 bridge application.

TAPScope Bridge project preview
Technical ownershipDeploymentSecurityDebuggingMonitoring
10

HyperMall P2P

Peer-to-peer functionality and chat built with Pear Runtime as part of the HyperMall project.

HyperMall P2P project preview
P2P chatPear RuntimeUITransaction dataAddress data
11

TRAC Systems

Maintenance, staging, testing and customisation work on the TRAC Systems corporate website.

TRAC Systems project preview
WordPressCustom codeStagingTestingDeploymentMaintenance

Services

From an idea to something people can actually use.

I work with startups, founders and businesses to build new digital products and improve existing ones.

01

Web applications & MVPs

From early concepts to production-ready applications. I build responsive, maintainable web products with a strong focus on usability and long-term scalability.

Frontend developmentBackend & REST APIsProduct architectureDeployment
02

Product development & improvement

I help improve existing products, solve technical problems and develop new features without having to rebuild everything from scratch.

Feature developmentDebuggingPerformanceSecurity & monitoring
03

Web3 & complex integrations

For products that need more than a standard website — from wallet integrations and blockchain data to transaction flows and specialised APIs.

Wallet integrationsBlockchain dataTransactionsThird-party APIs

About

I care about what happens after the mockup.

I'm Valentina, a full-stack developer focused on building digital products that are useful, reliable and ready for production.

My work goes beyond implementing interfaces. I work across frontend and backend development, APIs, deployment, debugging, security and the technical decisions that keep a product running after it ships.

I enjoy working with founders, startups and teams that need someone who can understand an existing product, solve technical problems and take ownership of getting things forward.

BasedGermany
WorkingWorldwide
FocusFull-stack · Product development

Contact

Have a project in mind?

Tell me what you're building, where you are in the process and where you need help.