I will build your web3 dapp smart contract or blockchain integration

Netherlands

I speak Dutch, English, German

Web Developer, Shopify and Blockchain Expert

At Sigmatic, I help companies turn ideas into reliable digital products. I build fast, conversion-focused websites, Next.js applications, Shopify stores, custom e-commerce integrations and API-driven ...
About this Gig

Build your Web3 product with an engineer who understands both blockchain depth and polished product delivery.


I design and build production-ready dApps, smart-contract integrations and blockchain infrastructure. My work includes staking products, DeFi interfaces, wallet flows, indexers, RPC infrastructure and custom Web3 platforms.


Relevant experience includes building and operating Stakingverse, which reached more than $14M in peak TVL.


Typical projects include:


wallet and Universal Profile integrations

staking, token and DeFi interfaces

smart-contract integration and frontend flows

blockchain data indexing and backend APIs

validator, RPC and infrastructure tooling

Web2 and Web3 product integration


Security, failure handling and operational reliability are considered from the start. Smart-contract audits by a specialist third party are recommended before production deployment when funds are at risk.


You work directly with the founder of Sigmatic, from architecture through launch.


Message me before ordering so we can confirm the network, contracts, scope and security requirements.

Purpose:

DeFi

•

Information management systems (IMA)

•

Web browser

Programming language:

JavaScript

•

Python

•

Solidity

•

TypeScript

Expertise:

APIs

•

Blockchain development

•

Infrastructure

Keep your assets and information safe

Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.