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Backend Engineer

Madrid💼 Full-time🗓 2026-05-29 → 2026-07-31

Core

Modernizing backend applications, automating processes, and creating integrations for international business units.

Role type

Senior Node.js Backend Engineer

Builds

Unified backend solutions, automation tools, and API integrations

Domain

Financial services / Banking

Deliverable

production ML models | product features | infrastructure

Required skills

Node.js, JavaScript, TypeScript, REST API design, GraphQL API design, CI/CD pipelines, Unit testing, Integration testing, Architecture design, Code review, Mentoring

Preferred skills

React

Technologies

Node.js, JavaScript, TypeScript, REST, GraphQL, Git

Responsibilities

Define and evolve solution architecture, Develop and maintain unified solutions, Create automation and integrations, Collaborate with Engineering Guild, Conduct code reviews and make final technical decisions, Coach and mentor engineers

Seniority

Senior, hands-on IC with mentorship

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