> Markdown version of [/jobs/ext/3917809-principal-senior-solutions-engineer-bottom-of-stack-ai-infrastructure](https://www.wearedevelopers.com/jobs/ext/3917809-principal-senior-solutions-engineer-bottom-of-stack-ai-infrastructure). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal / Senior Solutions Engineer - Bottom-of-Stack & AI Infrastructure - **Company:** Kelly Services Inc. - **Location:** Sacramento, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Cloud Computing, Data Centers, Distributed Systems, Ethernet, InfiniBand, Network Architecture, AI Infrastructure, High Performance Computing, Information Technology, Hardware Acceleration, Data Management - **Published:** October 26, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3467206376&tx=CT323TYI&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role This is an exceptional ground-floor opportunity to join an expanding commercial pre-sales organization as the core technical authority on physical and network infrastructure. The #1 feature of this opportunity is the rare combination of cutting-edge hardware scale and early-stage leadership runway : you will partner directly with commercial sales leaders to drive technical discovery, lead high-impact architectural whiteboarding, and design custom, multi-node infrastructure solutions for enterprise customers. We are looking for an adaptable, hands-on infrastructure technologist who is energized by customer engagement and motivated by a clear path into future technical leadership. You will step into a collaborative, engineering-driven environment that values autonomy, continuous learning on advanced hardware systems, and sustainable work-life balance., * 7+ years of experience in customer-facing pre-sales engineering, solutions architecture, or advanced systems engineering within enterprise data center, cloud infrastructure, or high-performance computing (HPC) environments. * Deep technical understanding of physical data center design, power planning, high-density rack topologies, and modern thermal management solutions (liquid cooling, direct-to-chip, or hybrid systems). * Proven track record architecting and sizing enterprise compute clusters and hardware accelerator platforms. * Solid architectural grasp of high-speed, low-latency fabric networking (such as InfiniBand or high-performance RoCE/lossless Ethernet fabrics). * Demonstrated experience partnering with enterprise account executives through the complete pre-sales lifecycle, including discovery, technical qualification, and solution design. * Strong executive presentation, consultative whiteboarding, and technical communication skills. ## Description * Experience supporting large-scale enterprise deployments, benchmark validations, and formal technical proposals/RFPs. * Familiarity with cluster management tools, distributed computing platforms, or high-throughput enterprise storage architectures. * Background working with enterprise hardware vendors, systems integrators, or specialized cloud infrastructure providers. * Bachelor's degree in Computer Science, Electrical Engineering, Mechanical Engineering, or related technical field, or equivalent practical experience. What You Will Be Doing Tech Breakdown * 40% Data Center Power, Thermal Management & High-Density Rack Architecture * 30% Enterprise Compute & Hardware Acceleration Platforms * 30% High-Performance Fabric Networking & Infrastructure Interconnects Daily Responsibilities * 45% Customer Architecture Sessions, Technical Whiteboarding & Deal Qualification * 35% Hands-On Technical Solution Design & RFP/Proposal Development * 20% Team Collaboration & Strategic Pre-Sales Playbook Development The Offer * Commission eligible