Senior Platform Engineer/SRE - Tech Lead Critical Infrastructure Transformation

Build the internal platform that powers our engineering teams, delivering mission-critical software to 4,000+ cloud hosting providers worldwide.

CloudLinux powers 4,000+ hosting providers managing millions of websites globally. Our infrastructure team is at a critical inflection point – moving from 8+ years of technical debt to building a modern platform. This isn't a typical SRE role; it's a chance to architect the future of infrastructure that cannot fail.

Where we are: Legacy systems, reactive operations, bus factor = 1. OpenNebula bottlenecks blocking releases. 70% time on firefighting.

Where we're going: Self-service platform, Infrastructure as Code, proactive engineering. You'll be one of 2-3 senior engineers leading this transformation alongside a new Infrastructure Director with full B-level support.

What You'll Actually Do

Stabilize & Assess:

• Deep dive into OpenNebula issues with the existing team
• Map critical dependencies and single points of failure
• Implement quick wins (automated VM cleanup, monitoring gaps)
• Begin documenting undocumented systems

Build Foundation:

• Leading the design and development of an internal development platform (IDP)
• Implement GitOps for critical workflows
• Establish SLIs/SLOs for core services
• Create runbooks for top incidents

Transform Platform:

• Architect self-service Internal Developer Platform
• Drive Infrastructure as Code to 60%+ coverage
• Eliminate single points of failure
• Drive development and implementation of complex architectural decisions

Technical Stack You'll Transform

Current:

• Virtualization: OpenNebula (main bottleneck), oVirt/OpenStack/CloudStack, KVM
• Storage: Ceph (recently stabilized), Cephadm, Rook
• Network: Juniper
• Bare metal (3 Datacenters) + AWS + Google Cloud + Azure
• Automation: ~5% Terraform coverage, manual operations dominant
• CI/CD: Gitlab, Jenkins, Gerrit, Github

Your Tools for Transformation:

• Kubernetes & KubeVirt and/or all necessary
• Terraform/Terragrunt + Ansible
• GitOps (ArgoCD/Flux)
• Python/Go for custom tooling
• Modern observability stack

Requirements

To thrive in this role, we are looking for someone who has:

• Migrated legacy systems to modern platforms at scale
• Strong Kubernetes production experience (multi-tenant, federation)
• Infrastructure as Code expertise (Terraform/Ansible in production)
• Linux at scale (RHEL/CentOS/AlmaLinux, 1000+ servers)
• Network fundamentals, underlay, overlay, (EVPN, BGP, VXLAN, DNS, network architecture & segmentation, native pod networking at scale)
• Proven ability to work independently with minimal documentation
• Experience building self-service platforms
• English B2+ and excellent documentation skills

Critical Mindset:

• Comfortable with ambiguity and technical debt
• Pragmatic: know when to fix vs. replace vs. work around
• Can balance firefighting with strategic improvements
• Strong opinions, loosely held
• Teaching mentality – you'll help upskill the team

What Makes You Successful Here:

• You'll have significant technical decision-making power and direct impact
• New Infrastructure Director + B-level backing for transformation
• Approved investment in people and technology
• Full authority to simplify and modernize
• Protected time for strategic work, not just operations

The Opportunity

This isn't about maintaining the status quo. You'll:

• Define infrastructure strategy affecting 4,000+ companies
• Build an internal development platform
• Lead technical transformation with real budget and support
• Become the principal architect of a modern platform
• Work directly with the Infrastructure Director
• Shape how critical infrastructure software gets delivered globally

Benefits

What's in it for you?

• Competitive senior-level compensation.
• A focus on professional development.
• Interesting and challenging projects.
• Fully remote work with flexible working hours, which allows you to schedule your day and work from any location worldwide.
• Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves.
• Compensation for private medical insurance.
• Co-working and gym/sports reimbursement.
• Budget for education.
• The opportunity to receive a reward for the most innovative idea that the company can patent.

Apply If You:

• Thrive in high-impact, high-autonomy environments
• Want to transform, not just maintain
• Can see through chaos to architectural solutions
• Are excited by the challenge, not scared by the current state
• Believe infrastructure should be invisible when working, invaluable when measured

We're specifically looking for someone who has successfully navigated similar transformations. If you've only worked in already-stable environments, this role will be challenging. But if you've turned chaos into platform excellence before – let's talk.

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