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

Independent developer · Based in Germany · Working worldwide
I help startups and businesses turn ideas and existing products into reliable web applications.
Selected work
01 — 11A blockchain explorer for real-time network, transaction and address data.


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

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

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

Backend development for a production marketplace for collectible spirits.

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

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

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

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

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

Services
I work with startups, founders and businesses to build new digital products and improve existing ones.
From early concepts to production-ready applications. I build responsive, maintainable web products with a strong focus on usability and long-term scalability.
I help improve existing products, solve technical problems and develop new features without having to rebuild everything from scratch.
For products that need more than a standard website — from wallet integrations and blockchain data to transaction flows and specialised APIs.
About
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.
Contact
Tell me what you're building, where you are in the process and where you need help.