Principal Infrastructure Engineer (Fintech)

Location: Spain; remote

Salary: $12,500–$20,800 USD gross per month, based on location and experience.

Company

hirify.global is a fintech and retail technology company providing interest-free installment payments and shopping experiences for consumers and merchants.

What you will do

• Own the architecture and evolution of core infrastructure supporting increasing traffic, data volume, and workload complexity.
• Design resilient AWS account, IAM, networking, multi-Availability Zone, and multi-region architectures.
• Build and operate Kubernetes platforms, including cluster lifecycle automation, workload isolation, autoscaling, upgrades, and deployment reliability.
• Scale and optimize Aurora RDS for MySQL and PostgreSQL through query tuning, indexing, capacity planning, replication, failover, and safe migrations.
• Improve reliability through observability, SLOs, error budgets, disaster recovery, incident response, and infrastructure automation.
• Build AI-assisted tooling for incident investigation, capacity analysis, runbook automation, anomaly analysis, and toil reduction with controlled and auditable actions.

Requirements

• Bachelor's degree in Computer Science or a similar technical field.
• 12+ years of experience across infrastructure, platform, SRE, software development, or related engineering disciplines.
• Deep production expertise with AWS, Kubernetes, relational databases at scale, and Aurora RDS for MySQL and/or PostgreSQL.
• Strong coding and automation skills with Golang, Python, or similar languages, plus Terraform or equivalent infrastructure-as-code experience.
• Strong systems fundamentals covering Linux, networking, DNS, TLS, storage, concurrency, and distributed-system failure modes.
• Experience with 24/7 high-availability platforms, incident response, on-call rotations, disaster recovery, observability, load testing, capacity planning, CI/CD, and active AI tooling use.

Nice to have

• Experience in fintech, payments, or banking environments with demanding reliability, security, and audit requirements.
• Experience with multi-region architectures, chaos engineering, and distributed data recovery tradeoffs.
• Proficiency with Prometheus, Grafana, Loki, Tempo, or comparable observability tools.
• Experience building internal platforms, self-service tooling, progressive delivery, and AI-assisted incident automation.

Culture & Benefits

• Remote full-time work arrangement in Spain.
• Emphasis on high standards, ownership, measurable results, simplicity, and technical depth.
• Open-source-focused technology practices.
• Collaborative work with application engineering, Security, Compliance, and engineering leadership.
• Hands-on ownership of production systems and meaningful customer and business impact.