Senior DevOps / Infrastructure Engineer

Anywhere in the World·Posted today

pythongokubernetesdockerawsterraform

Headquarters: Remote Island Lake Argyle, Remote, 6743 Australia <div class="mx-auto max-w-750 prose font-company-body overflow-hidden break-words [&_ol_li_li]:list-[lower-alpha]"> A Senior DevOps / Infrastructure Engineer in this role is responsible for building, optimizing, and maintaining a high‑performance, secure, and globally distributed infrastructure. The position requires deep expertise in Linux systems, networking, monitoring, VPN technologies, and traffic‑evasion techniques used in modern privacy‑focused environments.<h2>About the Role</h2>You will design and operate mission‑critical infrastructure that supports large‑scale, high‑load systems. The work goes far beyond container management: it involves kernel‑level tuning, advanced networking, VPN stack engineering, and building monitoring systems from the ground up. This is a role for someone who understands how systems behave under pressure and knows how to automate everything that repeats.<h2>Key Responsibilities</h2><ul><li>Develop and evolve infrastructure architecture to ensure stability, scalability, and high availability.</li><li>Build and automate CI/CD pipelines using GitLab, Ansible, and Terraform.</li><li>Maintain and optimize Linux systems for high‑load environments, including kernel tuning and network performance adjustments.</li><li>Configure and improve monitoring systems (Zabbix, Grafana), including custom templates, auto‑discovery, and alerting logic.</li><li>Manage and optimize VPN technologies such as StrongSwan, OpenVPN, and Xray.</li><li>Analyze complex incidents, identify root causes, and implement long‑term fixes.</li><li>Ensure infrastructure security through access control, firewall management, updates, and 2FA.</li><li>Collaborate with development and QA teams in a distributed environment.</li><li>Participate in architectural decisions and guide the team through best practices.</li></ul><h4>Core Skills and Expertise</h4><h5>Monitoring Engineering</h5><ul><li>Advanced proficiency with Zabbix and Grafana, including:<ul><li>custom templates,</li><li>auto‑discovery rules,</li><li>external scripts,</li><li>alerting pipelines,</li><li>performance dashboards.</li></ul></li></ul><h5>Linux & Kernel Optimization</h5><ul><li>Deep understanding of kernel and OS tuning for high‑load systems:<ul><li>network I/O optimization,</li><li>socket buffer tuning,</li><li>IRQ affinity and CPU interrupt balancing,</li><li>NIC queue configuration,</li><li>sysctl tuning for throughput and latency.</li></ul></li></ul><h5>VPN Technologies</h5><ul><li>Hands‑on experience configuring and optimizing:<ul><li>StrongSwan (IPsec),</li><li>OpenVPN,</li><li>Xray-core (VLESS/REALITY, VMess, Shadowsocks).</li></ul></li><li>Understanding how VPN protocols behave under different network conditions and censorship environments.</li></ul><h5>DPI Evasion & Traffic Obfuscation</h5><ul><li>Knowledge of DPI/TSPU architecture and modern circumvention techniques:<ul><li>domain fronting,</li><li>SNI masking,</li><li>ECH (Encrypted Client Hello),</li><li>REALITY,</li><li>uTLS fingerprinting.</li><li>Familiarity with obfuscation protocols such as Shadowsocks‑2022, Trojan‑GFW, and Cloak.</li></ul></li></ul><h5>Additional Technical Areas</h5><ul><li>Scripting: Bash, sed, awk; Go or Python for tooling and automation.</li><li>Virtualization: Proxmox, Docker, Portainer.</li><li>Networking: firewalls (nftables/iptables), routing, PBR, VLANs, GRE/IPIP tunnels, tun/tap, veth, bridges.</li><li>Databases: PostgreSQL or MySQL (schema design, optimization, replication basics).</li><li>Automation: Ansible, Terraform.</li><li>Cloud: AWS, Cloudflare, Hetzner.</li><li>Logging: Elastic Stack, OpenSearch, Vector, Promtail, Loki.</li><li>Kubernetes on bare metal: deployment, CNI, storage, operations.</li><li>Secrets management: Infisical.</li></ul><h5>Who Thrives in This Role</h5><ul><li>Engineers who understand systems deeply and enjoy solving complex infrastructure problems.</li><li>People who automate everything and dislike repetitive manual work.</li><li>Those who can take ownership of critical systems and support the team with expertise.</li><li>Individuals comfortable working in distributed teams and communicating clearly in English.</li></ul><h5>What the Company Offers</h5><ul><li>Fully remote, full‑time position with weekends off.</li><li>Work with international, high‑impact projects.</li><li>Opportunities for professional growth and specialization.</li><li>Competitive salary based on experience.</li><li>A young, friendly, and technically strong team.</li></ul> </div> To apply: <a href="https://weworkremotely.com/remote-jobs/eer-poland-senior-devops-infrastructure-engineer">https://weworkremotely.com/remote-jobs/eer-poland-senior-devops-infrastructure-engineer</a>

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