Principal Infrastructure Engineer (Fintech)

Location: Remote from Brazil

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 and operate resilient AWS infrastructure, Kubernetes platforms, and Aurora RDS databases running MySQL and PostgreSQL.
• Improve throughput, latency, capacity, reliability, disaster recovery, observability, and cloud cost efficiency.
• Build infrastructure-as-code, deployment automation, safe migrations, load tests, capacity models, and operational tooling.
• Participate in on-call rotations, lead technical recovery during major incidents, and implement postmortem improvements.
• Build and evaluate AI-assisted tools for incident investigation, runbook automation, anomaly analysis, and toil reduction.

Requirements

• Bachelor’s degree in Computer Science or a related technical field.
• 12+ years of experience designing and operating production infrastructure at scale.
• Deep production expertise with AWS, Kubernetes, networking, IAM, multi-account architectures, and private connectivity.
• Deep experience with RDS/Aurora for MySQL and/or PostgreSQL, including performance tuning, replication, high availability, failover, backups, and recovery.
• Strong coding and automation skills with Golang, Python, or similar languages, plus Terraform or equivalent infrastructure-as-code experience.
• Experience with high-availability platforms, incident response, disaster recovery, observability, load testing, capacity planning, CI/CD, and active use of AI tooling.

Nice to have

• Experience in fintech, payments, or banking infrastructure.
• Experience with multi-region architectures, chaos engineering, and distributed-data recovery tradeoffs.
• Prometheus, Grafana, Loki, Tempo, internal platform capabilities, progressive delivery, or reusable infrastructure components.
• Experience building AI-assisted incident investigation or operational automation with restricted access and auditable execution.

Culture & Benefits

• Remote full-time position with participation in an on-call rotation.
• Open-source-oriented engineering culture focused on building internal capabilities where practical.
• Work closely with application engineering, Security, Compliance, and engineering leadership.
• Environment emphasizing high standards, accountability, simplicity, measurable results, and respectful technical debate.