Senior DevOps Engineer (Cloudflare)

About the Role We are seeking a talented and proactive Senior DevOps Engineer to own, optimize, and scale a global high-availability infrastructure. In this role, you will design provider-agnostic failover strategies, orchestrate mass domain portfolios, and build resilient traffic engineering solutions that eliminate single points of failure. If you thrive on fine-tuning global content delivery, automating complex edge security, and driving high-performance Infrastructure as Code (IaC), this is your platform to make a massive impact. About the Client Our partner is an end-to-end product engineering company based in Belgrade, Serbia, that creates an environment where tech professionals are empowered to take initiative and go big. They specialize in building complex tech products, turning outdated systems into high-performing engines, and designing stable, secure environments. As their exclusive recruitment partner, Lionhires manages their full-cycle talent acquisition. What You Will Do Optimize Multi-CDN & Edge Services: Manage and scale advanced edge configurations across premium providers (Cloudflare, Fastly, Gcore), including DNS, Edge Computing (Workers/Snippets), access control, and WAF policies. Architect Provider-Agnostic Resilience: Design and deploy multi-cloud failover strategies and high-availability solutions to guarantee global service continuity while actively preventing vendor lock-in. Drive Traffic & Performance Engineering: Monitor, analyze, and fine-tune global load balancing (GSLB), HTTP traffic handling, and advanced caching strategies to minimize global latency. Orchestrate Mass Domain & SSL Portfolios: Automate large-scale SSL/TLS provisioning and enforce unified security policies seamlessly across diverse platforms. Scale Infrastructure as Code (IaC): Build and maintain reusable, production-ready configurations using Terraform or OpenTofu to ensure all multi-provider infrastructure is highly consistent and fully auditable. Harden Security & Web Protection: Partner closely with internal security teams to deploy robust Rate Limiting, application-layer DDoS mitigation, and cutting-edge Bot Management. Champion Observability & Incident Response: Utilize centralized monitoring tools to tune performance across both application and edge layers, leading Root Cause Analysis (RCA) and actively participating in on-call rotations. Automate CI/CD Pipelines: Integrate edge and infrastructure configuration changes directly into CI/CD pipelines to fully automate and rigorously test deployments. What You Bring Requirements Proven Experience: 3+ years of dedicated experience in DevOps, Site Reliability Engineering (SRE), or a related production infrastructure role, with a strong, hands-on focus on Cloudflare ecosystems. Deep CDN & Protocol Expertise: Solid, foundational understanding of HTTP protocols, caching principles, and core content delivery mechanics. Cloudflare Mastery: Demonstrated skill in managing Cloudflare DNS, Firewall Rules, Page Rules, Workers, and adjacent edge services. Reverse Proxy Proficiency: Strong working knowledge of Nginx (or similar proxies like Envoy and HAProxy) for complex reverse proxying and load balancing. Infrastructure as Code (IaC): Practical, production-level experience managing infrastructure through Terraform. Core Networking & OS Fundamentals: Robust understanding of TCP/IP, routing, security best practices, and deep comfort navigating Linux environments paired with scripting skills (Bash, Python, etc.). Nice to Have Hands-on experience utilizing Cloudflare Enterprise features (Argo, advanced caching, Workers KV). Familiarity with container orchestration systems (Kubernetes) and performance testing tools for edge optimization. Practical exposure to modern CI/CD systems (GitLab CI, Jenkins). Essential web security knowledge (advanced SSL management, custom security headers). What's in It for You Health & Wellness: Premium Health Insurance (up to €5,000 annually) plus a company-covered FitPass sports membership. Generous Time Off: 24 annual vacation days accompanied by 6 fully paid sick days without requiring a medical certificate. Continuous Learning: A dedicated Learning & Development budget allocated for professional certifications, industry conferences, and advanced courses. Global Culture & Relocation: Comprehensive relocation package for international talent, alongside fully covered English and Serbian language classes. Events & Celebration: Vibrant corporate culture featuring international parties, team building trips, and financial gifts for life's milestones (birthdays, weddings, newborns). Career Trajectory: Unmatched professional growth opportunities within a fast-scaling engineering environment.