Senior Blockchain Wallet Engineer

Werben HR; Buenos Aires; Presencial; ARS 3.000.000 - 6.000.000; Jornada completa

Descripción de la vacante

Werben HR seeks a skilled software engineer for a crypto wallet infrastructure role. You will work on institutional-grade wallet systems supporting a global financial services' stablecoin initiatives.

Required are 3+ years in software, 2+ in blockchain/web3, with hands-on Solana or EVM experience, token standards, and MPC custody integrations. Proficiency in TypeScript/Node.js and Next.js is essential.

Formación

• 3+ years software engineering, 2+ years in blockchain/web3.
• Hands-on with SPL tokens, ERC-20, and on-chain transactions.
• Experience integrating MPC custody platforms (signing APIs, policy engines, key management).
• Proficiency in TypeScript / Node.js and modern React frameworks (Next.js preferred).
• Strong security awareness — key management, auth, rate limiting.

Conocimientos

Solana (SVM) / EVM

SPL tokens

ERC-20

token delegation

on-chain transactions

TypeScript

Node.js

React (Next.js)

security awareness

key management

Herramientas

TypeScript

Node.js

Next.js

React

Descripción del empleo

Build and maintain institutional-grade crypto wallet infrastructure for a global financial services company launching stablecoin products.

Must Have

• 3+ years software engineering, 2+ years in blockchain/web3
• Strong experience with Solana (SVM) or EVM - ideally both
• Hands-on with SPL tokens, ERC-20, token delegation, and on-chain transaction construction
• Experience integrating MPC custody platforms (signing APIs, policy engines, key management)
• Proficiency in TypeScript / Node.js and modern React frameworks (Next.js preferred)
• Strong security awareness — key management, auth, rate limiting

Nice to Have

• Experience with Token-2022 (Solana) or advanced token standards
• Embedded wallet SDK integration (e.g., Dynamic, Web3Auth, Privy)
• AWS serverless deployment (Amplify, Lambda)
• Automated testing (unit + E2E)