Senior Linux/Web System Administrator - Web Infrastructure - Part-Time - Remote

Senior Linux/Web System Administrator - Web Infrastructure - Part-Time - Remote

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Level Senior Department Administration Type Part Time Project NDA Locations: Remote Job Details ---------------

Posted on: October 31, 2026 Job ID: PxSeZF ### About the Company

Established in 2004, ALLSTARSIT was founded with a clear vision: to enhance the landscape of global IT employment by bridging the gap between companies and skilled professionals. The core belief was that assembling a team shouldn't be hindered by geographical constraints. Fast forward to the present day, ALLSTARSIT stands as an international outstaffing service provider committed to change the way businesses recruit, compensate, and oversee top talent worldwide.

With operational hubs scattered across Europe, Asia, and LATAM, and its headquarters situated in San Francisco, US, the company boasts a workforce of over 1,000 adept professionals. Spanning across more than 20 countries, ALLSTARSIT offers a diverse range of skilled employees across various verticals, including AI, cybersecurity, healthcare, fintech, telecom, media, and so on. ### About the Project

Our client is an international financial technology company specializing in online trading and investment solutions. With over two decades of experience in the industry, the company provides access to global financial markets through its proprietary trading platforms, offering a wide range of instruments, including Forex, CFDs, commodities, indices, cryptocurrencies, and options. It focuses on developing innovative, user-friendly trading technologies and digital solutions for clients worldwide. ### Required skills:

Must Have

* Strong Linux system administration skills, preferably with CentOS and AlmaLinux, including monitoring production systems, troubleshooting, escalation, and administering multiple servers * Proven experience deploying applications to staging and production environments with minimal downtime, and maintaining/updating deployment procedures * Experience building and maintaining CI/CD pipelines in collaboration with development and QA teams * Practical knowledge of infrastructure as code and configuration management using Ansible and Puppet, for provisioning new servers and updating existing infrastructure * Strong skills configuring and maintaining LEMP (Linux, Nginx, MySQL, PHP) and MERN (MongoDB, Node.js) stacks in high-availability environments * Experience managing high-traffic, load-balanced systems using NGINX (web serving, load balancing, reverse proxying), and caching mechanisms * Experience with Memcached/Redis configuration and optimization * Strong understanding of web technologies including caching, proxying, content distribution, WebSockets, load balancing, and disaster recovery procedures * Experience with monitoring tools such as Zabbix, Grafana, and ELK * Understanding of backup and disaster recovery concepts and best practices * Experience with version control tools (Git/GitHub) * Ability to work cross-functionally to resolve production issues with minimal client impact, and to perform updates, patches, and maintenance across production and pre-production environments ### Scope of work:

• Manage the Linux server estate
• Help with changes to Nginx
• Contribute to managing CDNs, certificates, and DNS
• Manage some WordPress sites
• Deploy website and web app changes
• Troubleshoot connectivity and routing issues for complex regional site routing
• Optionally run Windows deployment tools or follow SOPs to troubleshoot and restart a wider range of systems (including Windows Services/IIS)