Overview In this Staff role, you will shape the technical direction for modernizing Cint's Supply domain, moving from a Go-centric monolith toward a unified Java/Kotlin/Spring stack. You'll own architectural patterns and standards to enable zero-downtime domain migrations and reduce legacy debt. You'll mentor engineers, raise the team's technical depth, and collaborate with product and global teams to balance technical goals with business value.

The opportunity centers on building scalable, observable, production-critical systems that power a global marketplace. You'll work with cutting-edge tooling and AI-assisted refactoring to accelerate meaningful impact.

Compensaciones / Ventajas remote-first high autonomy global impact opportunity to influence architecture world-scale platform collaborative culture

Responsabilidades Design and implement patterns for legacy displacement and monolith decommissioning with zero downtime

Own the architectural vision for legacy displacement across the domain

Mentor senior and mid-level engineers and raise the quality bar through design reviews

Build new services and help transition codebases from Go to Spring





Partner with product managers to shape roadmaps balancing debt and new value

Communicate effectively across time zones with strong written/documentation skills

Leverage Grafana and tracing for observability to keep backend-heavy systems performant

Utilize AI-assisted tooling (Agentic programming tools like Claude Code) to accelerate refactoring

Requisitos principales Backend engineering experience (10+ years typical) with production-critical systems

Experience across multiple stacks and comfort with frontend (React)

Proven ability to break down monoliths and manage migrations

Strong collaboration and mentoring mindset

Focus on test strategy (Unit, Integration, E2E) and quality

Product-minded with understanding of business impact of architecture

Experience with event-driven systems and observability practices collaborative mindset mentoring and knowledge sharing systems thinking

Java/Kotlin/Spring stack

Go experience and migration to Spring

React frontend familiarity

📌 Staff Software Engineer (Barcelona)
🏢 Cint
📍 Barcelona