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IT Engineer Spec IV (Java)

SAO PAULO, BR💼 Full-time🗓 2026-09-25 → 2026-09-26

Core

Design and develop high-level product specifications and backend microservices for Web3 and Blockchain solutions, integrating with global Santander structures.

Role type

Senior IC Java Engineer (Blockchain/Web3)

Builds

Production-grade blockchain applications, smart contracts, and backend microservices for digital assets.

Domain

Banking / Blockchain / Web3

Deliverable

production ML models | product features

Required skills

Java, NodeJS (TypeScript/JavaScript), Solidity, Hardhat, Foundry, Ethereum/EVM, AWS, DevSecOps, Agile, Microservices architecture, Cloud architecture

Preferred skills

Solana, Rust, Event-Driven Architecture (EDA), MPS/MPC, Tokenization, Cryptographic key models, Zero-Knowledge Proofs (zk-STARKs, zk-SNARKs, zkEVM), Private Cloud (OpenShift), Cybersecurity

Technologies

Java, Spring Boot, NodeJS, TypeScript, JavaScript, Solidity, Hardhat, Foundry, AWS, OpenShift, Ethereum, EVM, Solana, Rust

Responsibilities

Collaborate to determine functional and non-functional requirements for new software; Develop high-level product specifications with attention to system integration and feasibility; Provide technical guidance on Web3 and Blockchain topics; Ensure software meets quality, security, and extensibility requirements; Interact with multiple stakeholders including technical leaders and business units.

Seniority

Senior, hands-on IC

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