Job Description

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.

About the Rolen

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.

Key Responsibilitiesn

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Develop and evolve infrastructure architecture to ensure stability, scalability, and high availability.

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Build and automate CI/CD pipelines using GitLab, Ansible, and Terraform.

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Maintain and optimize Linux systems for high-load environments, including kernel tuning and network performance adjustments.

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Configure and improve monitoring systems (Zabbix, Grafana), including custom templates, auto-discovery, and alerting logic.

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Manage and optimize VPN technologies such as StrongSwan, OpenVPN, and Xray.

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Analyze complex incidents, identify root causes, and implement long-term fixes.

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Ensure infrastructure security through access control, firewall management, updates, and 2FA.

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Collaborate with development and QA teams in a distributed workplace.

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Participate in architectural decisions and guide the team through best practices.

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Core Skills and ExpertiseMonitoring Engineeringn

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Advanced proficiency with Zabbix and Grafana, including:

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custom templates,

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auto-discovery rules,

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external scripts,

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alerting pipelines,

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performance dashboards.

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Linux & Kernel Optimizationn

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Deep understanding of kernel and OS tuning for high-load systems:

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network I/O optimization,

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socket buffer tuning,

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IRQ affinity and CPU interrupt balancing,

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NIC queue configuration,

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sysctl tuning for throughput and latency.

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VPN Technologiesn

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Hands-on experience configuring and optimizing:

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StrongSwan (IPsec),

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OpenVPN,

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Xray-core (VLESS/REALITY, VMess, Shadowsocks).

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Understanding how VPN protocols behave under different network conditions and censorship environments.

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DPI Evasion & Traffic Obfuscationn

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Knowledge of DPI/TSPU architecture and modern circumvention techniques:

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domain fronting,

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SNI masking,

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ECH (Encrypted Client Hello),

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REALITY,

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uTLS fingerprinting.

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Familiarity with obfuscation protocols such as Shadowsocks-2022, Trojan-GFW, and Cloak.

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Additional Technical Areasn

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Scripting: Bash, sed, awk; Go or Python for tooling and automation.

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Virtualization: Proxmox, Docker, Portainer.

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Networking: firewalls (nftables/iptables), routing, PBR, VLANs, GRE/IPIP tunnels, tun/tap, veth, bridges.

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Databases: PostgreSQL or MySQL (schema design, optimization, replication basics).

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Automation: Ansible, Terraform.

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Cloud: AWS, Cloudflare, Hetzner.

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Logging: Elastic Stack, OpenSearch, Vector, Promtail, Loki.

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Kubernetes on bare metal: deployment, CNI, storage, operations.

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Secrets management: Infisical.

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Who Thrives in This Rolen

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Engineers who understand systems deeply and enjoy solving complex infrastructure problems.

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People who automate everything and dislike repetitive manual work.

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Those who can take ownership of critical systems and support the team with expertise.

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Individuals comfortable working in distributed teams and communicating clearly in English.

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What the Company Offersn

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Fully remote, full-time position with weekends off.

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Work with international, high-impact projects.

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Opportunities for professional growth and specialization.

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Competitive salary based on experience.

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A young, friendly, and technically strong team.

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📌 Senior DevOps / Infrastructure Engineer (Lake Argyle)
🏢 Devopsroles
📍 Lake Argyle