Core Responsibilities Design, implement, test, and maintain the XenServer control plane (XAPI) using OCaml. Research, develop, and implement performance optimizations across the XenServer software stack. Define, collect, and analyze performance metrics to provide visibility and insights for leadership. Identify bottlenecks and propose architectural or design changes to improve system performance and scalability. Contribute to distributed system orchestration, performance tuning, and robust API design. Collaborate with and contribute to open-source projects, including Xen, the Linux kernel, and XAPI. Lead and coordinate cross-team feature development, ensuring performance and reliability requirements are met. Key Skills & Qualifications Strong proficiency in functional programming (OCaml) or advanced systems programming. Deep understanding of Linux internals, operating systems, and virtualization technologies. Experience designing, building, or operating distributed systems. Strong analytical skills for performance analysis, debugging, and optimization. Experience contributing to or working with open-source software ecosystems. About Us: Cloud Software Group is one of the world’s largest cloud solution providers, serving more than 100 million users around the globe. When you join Cloud Software Group, you are making a difference for real people, each of whom count on our suite of cloud-based products to get work done — from anywhere. Members of our team will tell you that we value passion for technology and the courage to take risks. Everyone is empowered to learn, dream, and build the future of work. We are on the brink of another Cambrian leap a moment of immense evolution and growth. And we need your expertise and experience to do it. Now is the perfect time to move your skills to the cloud. Cloud Software Group is firmly committed to Equal Employment Opportunity (EEO) and to compliance with all federal, state and local laws that prohibit employment discrimination. All qualified applicants will receive consideration for employment without regard to age, race, color, creed, sex or gender, sexual orientation, gender identity, gender expression, ethnicity, national origin, ancestry, citizenship, religion, genetic carrier status, disability, pregnancy, childbirth or related medical conditions (including lactation status), marital status, military service, protected veteran status, political activity or affiliation, taking or requesting statutorily protected leave and other protected classifications. If you need a reasonable accommodation due to a disability during any part of the application process, please contact us via the Bridge portal for assistance.