Senior Cloud Engineer

Senior Cloud Engineer

Crossjoin Solutions, founded in 2009, is a Portuguese IT company serving over 30 clients across Europe, Latin America, and North America. Through our services, we support tens of millions of consumers worldwide in sectors such as banking, insurance, healthcare, automotive, finance and telecommunications. We provide consulting across a broad range of sectors, including end‑to‑end performance optimization, enterprise testing, major incident troubleshooting, full‑stack architecture advisory, CI/CD acceleration, and infrastructure managed services.

Responsibilities

• Drive Cloud Cost Reduction: Lead initiatives to reduce cloud expenditure by optimizing storage volumes, evaluating new resource types, and identifying scaling opportunities.
• Manage & Optimize Data Services: Configure, monitor, and enhance Cassandra and Elasticsearch clusters, including migrations, downscaling and performance improvements.
• Design & Implement Multi‑Cloud Infrastructure: Build, test and deploy resilient infrastructure across AWS, Azure and GCP using Terraform.
• Enhance Operational Efficiency: Automate key processes such as Kubernetes Virtual Node Group creation and network routing to reduce overhead and transfer costs.
• Collaborate & Lead: Work closely with cross‑functional teams to plan and safely roll out changes in production environments. Provide technical leadership while executing complex tasks independently.
• Software Development & Automation: Build tools and scripts that automate operations and support ongoing cost management.

Requirements

• Minimum of 3+ years of experience as a Senior Cloud Engineer, Dev
  Ops or Site Reliability Engineer with a strong emphasis on cloud infrastructure and operations.
• Hands‑on experience designing, implementing and managing infrastructure across AWS, Azure and GCP.
• Extensive experience configuring, managing and optimizing large‑scale Cassandra and Elasticsearch clusters in production.
• Strong proficiency with Terraform for provisioning and managing cloud resources.
• Practical experience with container technologies such as Docker and Kubernetes cluster management.

Benefits

• Dynamic, goal‑oriented and cooperative team environment.
• Health insurance extensible to the family.
• Cross‑Support Program (psychology, psychosocial, financial, legal and nutrition consultations).
• Career growth plan across the entire company.
• Monthly gym subscription.
• Team‑building events.

Location: Porto Salvo, Lisbon, Portugal

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