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 Role

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 Responsibilities

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

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

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

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

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

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

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

- Collaborate with development and QA teams in a distributed environment.

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

Core Skills and Expertise

Monitoring Engineering

- Advanced proficiency with Zabbix and Grafana , including:

- custom templates,

- auto-discovery rules,

- external scripts,

- alerting pipelines,

- performance dashboards.

Linux & Kernel Optimization

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





- network I/O optimization,

- socket buffer tuning,

- IRQ affinity and CPU interrupt balancing,

- NIC queue configuration,

- sysctl tuning for throughput and latency.

VPN Technologies

- Hands-on experience configuring and optimizing:

- StrongSwan (IPsec) ,

- OpenVPN ,

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

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

DPI Evasion & Traffic Obfuscation

- Knowledge of DPI/TSPU architecture and modern circumvention techniques:

- domain fronting,

- SNI masking,

- ECH (Encrypted Client Hello),

- REALITY,

- uTLS fingerprinting.

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

Additional Technical Areas

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

- Virtualization: Proxmox, Docker, Portainer.

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

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

- Automation: Ansible, Terraform.

- Cloud: AWS, Cloudflare, Hetzner.

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

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

- Secrets management: Infisical.

Who Thrives in This Role

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

- People who automate everything and dislike repetitive manual work.

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

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

What the Company Offers

- Fully remote, full-time position with weekends off.

- Work with international, high-impact projects.

- Opportunities for professional growth and specialization.

- Market-competitive salary based on experience.

- A young, friendly, and technically strong team.

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