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Senior Full-Stack Engineer

Fullstack Developer • Senior • Remote • Vollzeit Portugal Portugal

CommIT is hiring a Senior Full-Stack Engineer in Portugal who is strongly backend-leaning (about 80-85% backend), working on high-scale backend pipelines and data-heavy systems.

Responsibilities

  • build high-scale backend data pipelines
  • build production-grade ingestion and processing systems
  • make architecture decisions based on real data volumes
  • operate reliably in Kubernetes/AWS environments
  • occasional frontend work (small UI tasks, new pages)

Requirements

  • TypeScript + Node.js production experience
  • NestJS (strong preference as the main backend framework)
  • designing backend systems at high scale: autoscaling, HA, performance, resilience
  • event-driven systems knowledge: Kafka-based ingestion/streaming
  • PostgreSQL/SQL proficiency (schema modeling, query optimization)
  • hands-on Kafka experience
  • Redis working knowledge
  • production experience in AWS and Kubernetes environments
  • practical experience with logs, metrics and tracing to monitor production systems

Nice to have

  • security domain familiarity (application security, runtime protection, vulnerability management)
  • prior work in data-intensive security platforms or similar high-scale systems

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