Senior Site Reliability Engineer (Ruby on Rails)

Location: Remote within the United States

Company

hirify.global is a software platform for fleet operations used by organizations worldwide, with a focus on transportation technology.

What you will do

• Run, maintain, and improve the performance, reliability, and scalability of Ruby on Rails applications, databases, and infrastructure.
• Identify, triage, and resolve performance issues and bottlenecks across Ruby, Rails, and database systems.
• Improve observability by monitoring performance metrics and defining SLOs and SLIs.
• Build AI agents, skills, and automations for incident response, investigation, remediation, and routine maintenance.
• Lead database capacity planning, upgrades, backup systems, disaster recovery, and pre-production database operations.
• Document infrastructure and operational practices, collaborate with engineers, and participate in the on-call rotation.

Requirements

• 5+ years of Ruby and Rails experience.
• 3+ years of AWS experience.
• Experience with Kubernetes, source-code profiling, and benchmarking.
• Experience with code review and identifying performance issues before production.
• Experience with Datadog or other application performance monitoring tools.
• Strong written and verbal communication skills, with experience applying Agile and DevOps principles.

Nice to have

• Experience building AI agents, LLM-powered automations, or engineering and operations integrations using tool or function calling or MCP.
• Experience with Terraform or other infrastructure-as-code tools.
• Strong knowledge of cloud networking, including routing, firewalls, load balancers, CDNs, and VPCs.
• Experience with Kafka, Redis, Elasticsearch, Memcached, TimescaleDB, or other distributed event and data stores.
• Experience in the fleet management industry.

Culture & Benefits

• Remote-friendly work environment.
• Health and dental coverage, vision insurance, and FSA and HSA options.
• 401(k) match of 4% and incentive stock options.
• Four weeks of PTO, company holidays, floating holidays, and paid parental leave.
• Professional development, community service, wellbeing, and business expense funds.
• Mac laptop and new-hire equipment stipend.