Cloud Infrastructure Engineer

This is a fully remote position, open to applicants in Colombia.

📋 Description

• Design, develop, and manage AWS infrastructure utilizing Terraform.

• Create and sustain Puppet modules for numerous EC2 instance fleets spanning various auto-scaling groups.

• Maintain and enhance Python-driven automation and tools that support platform operations.

• Operate and refine distributed service discovery and configuration management with etcd.

• Oversee and optimize caching layers including Varnish, Redis/Valkey, and PHP OPcache.

• Deploy and scale observability systems such as Prometheus, Grafana, Loki, Fluentd, and PagerDuty.

• Engage in on-call rotations.

• Assess and deploy distributed storage solutions.

• Enhance deployment workflows and release processes.

• Collaborate with internal teams on API agreements, integration methods, and operational tools.

• Take part in incident response, root cause analysis, and improvements to platform reliability.

• Assist in building, scaling, and evolving Open LMS's multi-tenant SaaS hosting platform on AWS for Moodle LMS instances.

⛳️ Requirements

• Extensive experience with AWS services in a production setting, especially EC2, RDS, S3, SQS, Lambda, ALB, ElastiCache, Route 53, IAM, and VPC networking.

• Expertise in creating and managing Terraform modules for production infrastructure.

• Proficient in writing and maintaining Puppet modules or equivalent agent-based configuration management for fleet oversight.

• Strong Python programming skills, including experience with production daemons.

• Comprehensive knowledge of Linux systems, particularly Ubuntu.

• Familiarity with Apache/Nginx, PHP-FPM, Varnish, systemd, filesystem mounts, and networking basics.

• Understanding of distributed systems principles, including consensus, leader election, distributed locking, eventual consistency, and their trade-offs.

• Proficient in production observability pipelines using Prometheus, Grafana, Loki, or similar tools.

• Comfort with a GitLab-based CI/CD workflow.

• Strong communication skills and the ability to document architectural decisions and articulate technical trade-offs to both technical and non-technical audiences.

• Hands-on experience with distributed storage systems like Ceph, GlusterFS, JuiceFS, CubeFS, or AWS EFS is preferred.

• Familiarity with etcd or similar distributed key-value stores, including watch APIs, TTL-based locking, and cluster operations is preferred.

• Experience with Varnish and VCL is preferred.

• Working knowledge of PHP is preferred.

• Background in the design of multi-tenant SaaS platforms is preferred.

• Familiarity with Moodle LMS or educational technology platforms is preferred.

• Experience with AWS Secrets Manager, HashiCorp Vault, Parameter Store, and automated credential rotation is preferred.

• Experience in designing zero-downtime deployment strategies for VM-based, non-containerized environments is preferred.

🏝️ Benefits

• Equal employment opportunity/affirmative action employer.

• Full-time employment.