Senior Site Reliability Engineer (MongoDB)

Location: São Paulo, Brazil; hybrid work

Company

hirify.global provides a customer engagement platform that helps brands deliver personalized experiences through cross-channel messaging, journey orchestration, and AI-powered decisioning.

What you will do

• Design and operate large-scale MongoDB infrastructure with strong availability, durability, SLA, and query-performance requirements.
• Build MongoDB-specific monitoring, alerting, capacity planning, sharding strategies, and observability.
• Partner with product engineering teams on schema design, indexes, aggregation pipelines, connection pools, and read/write standards.
• Manage MongoDB clusters on Kubernetes using the MongoDB Enterprise Kubernetes Operator, Terraform, and Ansible.
• Develop automated backup, restore, point-in-time recovery, and self-service tooling in Python, Go, Ruby, or JavaScript.
• Participate in PagerDuty on-call rotations, lead incident retrospectives, and improve runbooks through systemic fixes and automation.

Requirements

• 5+ years of production experience as a Software Engineer, DevOps Engineer, or Site Reliability Engineer.
• Hands-on MongoDB expertise covering replica sets, sharding, index design, aggregation pipelines, explain plans, and performance tuning under real load.
• Strong Linux fundamentals, including disk I/O, memory, networking, and process management.
• Strong programming skills in Python, Go, Ruby, or JavaScript, with experience writing automation.
• Experience with Terraform or Ansible and with Docker and Kubernetes.
• Systems thinking, attention to failure modes and cascading effects, and a documentation-first approach to asynchronous collaboration.

Nice to have

• Experience operating MongoDB at multi-terabyte scale or in a sharded topology.
• Familiarity with MongoDB Atlas, Ops Manager, or Cloud Manager.
• Experience with Redis, Kafka, or Postgres.
• Prior database platform engineering or database reliability engineering experience.

Culture & Benefits

• Hybrid ways of working with a curated in-office experience.
• Competitive compensation that may include equity, retirement plans, and an employee stock purchase plan.
• Flexible paid time off and comprehensive medical, dental, vision, life, and disability benefits.
• Fertility benefits, equal paid parental leave, professional development support, and a yearly learning stipend.
• Collaborative, transparent culture with employee resource groups, volunteer opportunities, and donation matching.

Hiring process

• AI-assisted tools may be used to analyze application materials and support interview scheduling, recording, and note summarization.
• Recruiting teams remain responsible for hiring decisions; candidates may have location-dependent rights to request information, opt out, or request manual review.