Responsibilities

:Leading technical initiatives - making proposals that change solutions and technical direction across web optimization and CloudLinux core features.Optimizing system performance - improving performance through profiling, benchmarking, and algorithmic optimization across both web and system-level domains.Making data-driven decisions - using benchmarking, profiling, and measurements to validate technical approaches and prove all technical decisions with concrete data.Contributing to upstream solutions - actively participating in open-source projects and contributing improvements to public codebases and upstream codebases.Leveraging AI tools - using modern AI tools and techniques to enhance productivity, solve problems, and improve optimization solutions.Mentoring and coaching engineers, conducting technical reviews, and establishing engineering best practices.Collaborating with cross-functional teams to define technical strategy and roadmaps.Troubleshooting complex production issues across web performance, limits, isolations, and system-level functionality, implementing long-term solutions.

Requirements

To thrive in this role, we are looking for someone who has:

6+ years of professional software engineering experience in C;Held senior/staff/principal engineering positions in previous roles;Strong C development skills - expert-level proficiency in C programming, essential for both web server extensions and kernel/system-level work;Web performance expertise - participation in web performance projects or own solutions for optimizing web performance;Web server experience - deep knowledge and experience with Nginx, Apache, and/or LiteSpeed, including developing C modules and extensions;Experience with PHP handlers and web request processing optimization;System programming expertise - deep experience with system-level programming and low-level system optimization;Linux kernel knowledge - understanding of Linux kernel internals, system calls, and system-level programming concepts;Resource management experience - resource limits, cgroups, namespaces, or similar resource management and isolation technologies;Strong Linux proficiency - comprehensive understanding of Linux system administration, internals, kernel architecture, and optimization;High level of security knowledge - strong understanding of security basics for web attacks, isolation mechanisms, and Linux security in general;Database expertise - solid experience with MySQL and MariaDB, including optimization and administration;Data-driven approach - proven ability to use benchmarking and measurements to validate and prove any technical decisions;Contribution to public/upstream solutions - experience contributing to open-source projects or upstream codebases;Experience developing new Apache/Nginx/MySQL/PHP modules/plugins and contributing to open-source existing ones;Strong understanding of the network stack, particularly TCP/IP and HTTP;Architecture and design skills - ability to design systems that are scalable, maintainable, and reliable at both web infrastructure and system levels;Technical leadership experience - mentoring engineers, conducting technical reviews, and driving engineering best practices;Knowledge of CI/CD pipelines and DevOps practices;Excellent communication skills - ability to articulate complex technical concepts to both technical and non-technical audiences;Strong collaboration skills and ability to work effectively in a remote, distributed team environment;Experience with POSIX programming in C;Experience with thread programming in C;Hands-on experience with profiling tools like perf, gprof, valgrind, etc.;English at an upper-intermediate level or higher.

Key qualities we're looking for:

Product and architectural visionary - ability to see the big picture and drive product direction through technical excellence.Game changer - can take initiative and make proposals that change solutions and technical direction.Universal engineer - versatile and adaptable, comfortable working across different domains and technologies.High initiative - proactive in identifying opportunities and driving improvements.High performance - consistently delivers exceptional results and exceeds expectations.Advanced algorithmic optimization - ability to design and implement alternative, more efficient algorithmic approaches to solve complex technical problems.Adept at using AI - leverages modern AI tools and techniques to enhance productivity and solutions.Results-driven and goal-oriented - focused on delivering measurable impact and achieving strategic objectives.

Benefits

What's in it for you?

A focus on professional development.Interesting and challenging projects.Fully remote work with flexible working hours, which 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.Compensation for private medical insurance.Co-working and gym/sports reimbursement.Budget for education.The opportunity to receive a reward for the most innovative idea that the company can patent.

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