Erno Wever - Owner at Erno Wever

Erno Wever

Owner at Erno Wever

Greater Groningen Area Netherlands

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Summary

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Rockstar

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Top School

Erno Wever is a hands-on senior software engineer and owner with ~10 years building fullstack systems, developer tooling, and Web3 infrastructure, most recently scaling Moralis’ APIs, SDKs and on-chain indexing platform. He combines technical leadership—migrating monoliths to microservices, improving CI/CD and test reliability—and day-to-day coding in TypeScript, Node.js, React, and Solidity. His work spans smart contract development and auditing, developer SDKs (notably contributions to Moralis' React hooks and JS SDK), and automation that materially reduced onboarding friction and incidents. As a contractor he delivers end-to-end Web3 products from gamified staking to NFT management portals across EVM chains, while experimenting with AI and emerging stacks like Solana/Rust. Colleagues know him for turning developer pain points into elegant tooling and for mentoring teams without losing the joy of building. Based in the Netherlands, he’s actively looking to collaborate with teams that stay close to code and push technical boundaries.

8 years of coding experience

8 years of employment as a software developer

Bachelor's Degree, Communication Systems: Multimedia Design and Branding, Bachelor's Degree, Communication Systems: Multimedia Design and Branding at Hanze

Nanodegree, React, Nanodegree, React at Udacity

Econometrics and Operational Research, Economics, Econometrics and Operational Research, Economics at University of Groningen

Dutch, English

Github Skills (17)

javascript10

typescript10

user-authentication10

authentication10

eslint10

pretier10

front-end-development10

web3js10

moralis10

typescript-types10

state-management10

prettify10

typescripts10

react10

walletconnect9

Programming languages (5)

C#TypeScriptJavaJavaScriptPython

Github contributions (5)

MoralisWeb3/Moralis-JS-SDK

Sep 2021 - Jan 2023

Moralis Official Javascript SDK

Role in this project:

Full-stack Developer

Contributions:60 releases, 448 reviews, 1186 commits in 1 year 4 months

Contributions summary:Erno primarily contributed to fixing and improving the code style of the JavaScript SDK, specifically addressing various ESLint warnings and errors. They also formatted the code using Prettier, ensuring consistency across the codebase. Furthermore, the user refactored the code to add features and improve the performance.

ethereumweb3nftfantommoralis

MoralisWeb3/react-moralis

Apr 2021 - Sep 2022

Hooks and components to use Moralis in a React app

Role in this project:

Full-stack Developer

Contributions:29 releases, 28 reviews, 240 commits in 1 year 4 months

Contributions summary:Erno primarily focused on enhancing the authentication and user state management within the React application. They modified authentication logic to correctly sync user state after login, logout, and authentication processes. The user also worked on exporting types for the root library directory and added the functionality to allow throwing errors on async functions within the hooks. Additionally, they refactored the code to improve the display of errors consistently.

reactreact-hooksmoralishooksreact-app

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