Senior Software Engineer, Core Cloud Engineering

Our Engineering team at Vultr is seeking a Senior Software Engineer, Core Cloud Engineering to report to the Director of Core Cloud Engineering. This role demands a deep understanding of low-level systems programming, networking protocols, and hypervisor technologies. The ideal candidate will excel in working with compiled languages like Rust, C, and Go, with occasional work in PHP for system integration. This is a hands-on engineering position with an emphasis on performance optimization, automation, and systems-level problem-solving, contributing to one of the most popular cloud platforms serving 1.5 million users.

Key Responsibilities

• Hypervisor API Integration: Design, implement, and maintain low-level integrations with hypervisor technologies like libvirt, QEMU, and KVM to enhance platform capabilities.
• Networking Automation: Develop and maintain automation around Open vSwitch (OVS), BGP routing, and other networking components to streamline datacenter operations.
• Performance Tuning: Analyze and optimize hypervisor performance across I/O, networking, and storage subsystems to meet scalability and efficiency goals.
• Systems Development: Write efficient and maintainable code in Rust, C, and Go for high-performance services, ensuring reliability and maintainability.
• Infrastructure Automation: Build and enhance tooling for automated hypervisor provisioning, monitoring, and management.
• Collaboration: Work closely with other engineering teams to align development efforts with reliability, scalability, and business objectives.
• Documentation: Produce high-quality technical documentation for APIs, systems, and processes to support team collaboration and scalability.
• Mentorship: Share knowledge with team members, helping to grow expertise in low-level systems and performance engineering.

Qualifications

• Proficiency in compiled languages like Rust (preferred), C, and Go, with experience in PHP for integration tasks.
• Strong experience with hypervisor technologies such as libvirt, QEMU, and KVM.
• In-depth knowledge of networking protocols and tools, particularly BGP, Open vSwitch (OVS), and related automation frameworks.
• Advanced skills in performance profiling, tuning, and optimization across I/O, network, and storage layers.
• Familiarity with database systems and concepts, with a preference for MySQL.
• Expertise in Linux systems administration and low-level troubleshooting.
• Experience building and maintaining CI/CD pipelines with tools like Gitlab.
• Strong knowledge of configuration management tools like Puppet.
• Proficiency with observability tools such as Grafana, Sentry, and SumoLogic for monitoring and debugging complex systems.
• Exceptional problem-solving skills, with a proven ability to address complex, low-level technical challenges.
• Effective communication and collaboration abilities to work cross-functionally with teams and stakeholders.
• A commitment to continuous learning and fostering a culture of technical excellence.