Cristian C.

Team Leadership: Owning the full platform lifecycle — from architecture design to production operations. Leading and coordinating the infrastructure team while maintaining hands-on technical delivery. Authored the foundational architecture documents and built the core tooling.

FinOps & Multi-tenancy Strategy: Achieved a 60% reduction in observability and 50% in compute costs via strategic migrations, reducing vendor lock-in. Architected a multi-tenant model that allows scaling the client base over the same infrastructure, maximizing profit margins.Delivering monthly FinOps reports to leadership

Core Infra: Led the high-risk, zero-downtime migration from monolithic Terraform to modular Terragrunt/GitOps. Redesigned networking to a Hub-and-Spoke model with SSO (IAM Identity Center), successfully leading the infrastructure through external audits.

LLMOps & AI-Ops: Designed the internal LLMOps framework, transitioning from ad-hoc prompting to a structured SDLC. Established a "Golden Dataset" evaluation strategy for deterministic quality metrics prior to deployment. Deployed an autonomous AI agent ecosystem (Bedrock/Anthropic) that translates high-level requirements into modular Terragrunt, managing PRs and Jira sync with a Human-in-the-Loop validation layer.

Autonomous AI Security Governance: Architected an end-to-end AI remediation pipeline, reducing vulnerability remediation cost by 99.5% ($75 → $0.35 per analysis) and time by 95% (1-2 hours → under 5 minutes). Orchestrated workflows (n8n, Claude) to dynamically analyze SAST/IaC/Cloud Posture, auto-generating PRs assigned to team leads and audit-ready reports mapped to SOC 2, ISO 27001, and PCI-DSS. Engineered programmatic data enrichment and LLM guardrails (Latitude), with prompt versioning, offline evaluations, and high-availability fallbacks.

Tech Stack: Terraform/Terragrunt, EKS, AWS, GitHub Actions, n8n, DefectDojo, SonarQube, Trivy, Checkov, Latitude, Claude Code, Prometheus.

Core Impact: Acted as the strategic pillar for operational continuity and hybrid infrastructure evolution following the transition of Senior leadership. Served as the ultimate escalation point for mission-critical incidents.

Global Network Architecture: Engineered and scaled a global hybrid network leveraging AWS Transit Gateway, interconnecting international hubs (DE, ES, CH, IT) and physical Datacenters with advanced perimeter security (Fortigate, IPsec).

Cloud Governance & Resilience: Managed mission-critical AWS accounts via Organizations and RAM, leading Disaster Recovery and Backup initiatives in direct collaboration with AWS solutions architects.

Platform Modernization: Deployed and maintained EKS clusters and automated full-stack environments using Terraform (IaC) and Ansible, streamlining SSO integrations and Kerberos/Active Directory troubleshooting.

High-Stakes Escalation: Provided Tier-3 support for complex infrastructure blockers, ensuring 24/7 availability for core financial services.

Tech Stack: AWS (TGW, DX, EKS, RDS), Terraform, Ansible, GitHub Actions, Fortinet, Cisco.

Core Impact: Architected the automated observability ecosystem that enabled Wefox’s successful transition from legacy systems to a Cloud-Native environment.

Observability Automation: Developed a custom monitoring framework using Zabbix and Python (Boto3 SDK) to enable autonomous discovery and alerting of dynamic AWS resources.

Infrastructure Standardization: Integrated GitHub Actions and Ansible to transition manual operations into repeatable, version-controlled CI/CD workflows.

Log Management & Analytics: Centralized critical system logs using the ELK Stack (Elasticsearch), significantly reducing Mean Time to Resolution (MTTR).

Hybrid Connectivity: Maintained and optimized cross-platform connectivity (Cloud + On-prem), implementing open-source solutions to balance cost-efficiency with high performance.

Tech Stack: Zabbix, Python, Terraform, ELK Stack, Networking (Fortigate, Pfsense), Prometheus/Thanos.