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CloudLinuxCL

Server Backend Developer for Imunify360 (remote-only, Europe)

CloudLinux provides a commercially supported operating system optimized for shared hosting providers and data centers, enhancing server stability, security, and resource management.

CloudLinux

Employee count: 201-500

Spain only

Imunify360 Security Suite is a product of CloudLinux Inc., the maker of the #1 OS in security and stability for hosting providers. Imunify is an innovative security solution designed specifically for shared and VPS/Dedicated servers. The automated, easy-to-use solution with the six-layer approach to security delivers comprehensive and complete attack prevention. Check out our website for more information: imunify360.com

We are looking for a dynamic and experienced Backend Developer to join our Server Team. In this role, you will design, build, and maintain highly scalable backend systems that power Server, ensuring reliability, performance, and seamless customer experience. You will work on a large-scale infrastructure, collaborate with cross-functional teams, and help shape the future of the product. The position is fully remote with flexible hours, allowing you to plan your day and work from anywhere in the world.

Join us and take your career to the next level!

Key Responsibilities:

  • Designing, building, and maintaining backend services for the Imunify360 server platform;
  • Developing and improving high-throughput, fault-tolerant messaging and data processing pipelines;
  • Operating and maintaining core server components, including proxies, message brokers, caches, and databases;
  • Investigating and resolving complex issues in distributed systems, ensuring uptime and reliability;
  • Writing and maintaining unit/integration tests to ensure robust, maintainable code;
  • Collaborating with Infrastructure, Monitoring, and other product teams to refine architecture and optimize system performance;
  • Monitoring production services using Grafana, Telegraf, and related tooling, proactively addressing bottlenecks and scaling challenges;
  • Improving CI/CD pipelines for automated, efficient deployments;
  • Participating in design reviews, incident analysis, and contributing to the long-term technical vision of the team.

Requirements

To thrive in this role, you should have:

  • 3+ years of professional experience as a Backend Developer;
  • Proficiency in Python (asyncio-based development is a must);
  • Hands-on experience with distributed systems and messaging frameworks such as RabbitMQ, Kafka (or similar);
  • Experience with MongoDB and Redis (including distributed caching and local RPC use cases);
  • Familiarity with ClickHouse (or other columnar databases) for large-scale analytics;
  • Practical experience with Docker for local development and production environments;
  • Experience with HAProxy or similar load balancing/proxy solutions;
  • Strong understanding of high-throughput service design and distributed system challenges;
  • Familiarity with CI/CD pipelines, version control (Git), and automated deployment workflows;
  • Excellent debugging skills, with the ability to deep-dive into network, data, and system-level issues;
  • Strong communication and collaboration skills, comfortable working in a distributed team;
  • At least upper-intermediate proficiency in spoken and written English.

Nice to have:

  • Experience with configuration management systems (e.g., Ansible, Puppet, Salt);
  • Experience working with monitoring and metrics stacks (Grafana, Graphite, Telegraf);
  • Experience with DNS systems (Unbound or similar).

We value developers who are:

  • Curious and fearless problem solvers – not afraid to dig into existing systems, investigate root causes, and propose improvements;
  • Pragmatic and detail-oriented – focused on building reliable, maintainable systems;
  • Team players – comfortable collaborating in a distributed team environment and contributing to a shared mission;
  • Effective communicators – able to articulate ideas clearly, exchange feedback constructively, and foster collaboration across teams;
  • Engaging and proactive – contributing energy, initiative, and a positive presence that strengthens team culture.

Benefits

What's in it for you?

  • A strong focus on professional development with opportunities for learning and growth:
    • Interesting and challenging projects,
    • Mentor and other knowledge-exchange programs;
  • Fully remote work with flexible working hours, that allows you to schedule your day and work from any location worldwide;
  • Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves to ensure you maintain a healthy work-life balance;
  • Compensation for private medical insurance;
  • Co-working and gym/sports reimbursement;
  • The opportunity to receive a reward for the most innovative idea that the company can patent, fostering a culture of creativity and innovation.

By applying for this position, you consent to the processing of your personal data as described in our Privacy Policy (https://cloudlinux.com/candidate-privacy-notice), which provides detailed information on how we maintain and handle your data.

About the job

Apply before

Posted on

Job type

Full Time

Experience level

Mid-level
Senior

Location requirements

Hiring timezones

Spain +/- 0 hours

About CloudLinux

Learn more about CloudLinux and their company culture.

View company profile

CloudLinux is dedicated to enhancing the security, stability, and profitability of Linux for hosting providers and data centers. With a collective experience of over 500 years in Linux, the company is transforming how these entities utilize the technology, extending its benefits to millions of their customers. CloudLinux boasts over 500,000 product installations and serves more than 4,000 customers, including prominent names like Liquid Web, 1&1, and Dell. The company merges profound technical expertise in hosting, kernel development, and open source with exceptional client care. Cloud Linux, Inc. was consolidated into Cloud Linux Software, Inc., which now operates under the TUXCARE trade name (DBA).

The core offering, CloudLinux OS, is specifically engineered for shared hosting environments. It isolates each tenant into a Lightweight Virtualized Environment (LVE), which partitions, allocates, and limits server resources such as CPU, memory, I/O, and the number of processes. This prevents any single user from monopolizing server resources and causing performance degradation or downtime for other users on the same server. This LVE technology is a key differentiator, ensuring a more stable and reliable hosting environment. CloudLinux OS also incorporates features like CageFS, a virtualized file system that encapsulates each user, preventing them from seeing each other's sensitive information or accessing server configuration files. This significantly enhances security in a multi-tenant setup. Furthermore, HardenedPHP ensures the security of the host system by automatically patching older and unsupported PHP versions. The OS is compatible with major control panels like cPanel, Plesk, and DirectAdmin, facilitating easier adoption and management for hosting providers. Beyond the operating system, CloudLinux has expanded its product portfolio with solutions like Imunify360, a comprehensive security suite for Linux web servers, and KernelCare, which provides automated, rebootless kernel patching. The company also initiated AlmaLinux OS, a free, open-source, community-driven enterprise-grade Linux distribution intended as a CentOS alternative, and continues to sponsor the AlmaLinux OS Foundation.

Employee benefits

Learn about the employee benefits and perks provided at CloudLinux.

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Competitive pay

CloudLinux offers competitive pay.

Paid vacation

Eligible staffers receive paid vacation.

Medical insurance

Eligible staffers receive medical insurance.

English sessions

CloudLinux offers English language sessions.

View CloudLinux's employee benefits
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CloudLinux

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CloudLinux hiring Server Backend Developer for Imunify360 (remote-only, Europe) • Remote (Work from Home) | Himalayas