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Staff Node.js Software Engineer

Spain💼 Full-time🗓 2026-09-16 → 2026-09-26

Core

Lead the architectural migration of business-critical legacy PHP systems to a modern Node.js/Next.js stack while maintaining operational continuity.

Role type

Staff Node.js Software Engineer (Legacy Modernization)

Builds

Modernized backend services, APIs, and microservices replacing legacy monolithic PHP applications.

Domain

Enterprise Software Engineering / Legacy Modernization

Deliverable

production ML models | product features | infrastructure

Required skills

Node.js, Next.js, PHP (Symfony/native), GraphQL, REST, API Gateway design, AI-assisted development (Cursor/Claude/GitHub Copilot), complex system debugging, architectural decision-making, legacy code refactoring

Preferred skills

Python, .NET, microservices/BFF patterns, financial/payment domain knowledge, mentoring

Technologies

Node.js, Next.js, Symfony, GraphQL, REST, API Gateways, Cursor, Claude Code, GitHub Copilot

Responsibilities

Provide architectural guidance for transitioning legacy PHP to modern stacks; remain hands-on with code and resolve critical bugs; design modern API strategies; leverage AI tools for development workflows; mentor engineers and establish engineering standards.

Seniority

Staff, hands-on IC with strategic leadership

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