Band 4 Jobs

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next. ABOUT THE ROLE: We are seeking a hands-on Infrastructure Security Engineer to build and secure SpaceXSI's infrastructure from the bare-metal layer up through the platform and application stack. In this role, you will design, implement, and harden physical and private-cloud foundations—servers, networks, identity, and orchestration—and carry that security posture into containers, automation, and hybrid connectivity with public cloud. This role focuses on securing critical infrastructure spanning data centers, colo, and hybrid environments, with work that may span platforms such as SpaceXSI, X Social, X Money, and related systems. You’ll operate with an automation-first mindset: building secure foundations at the metal and OS layer, hardening platforms at scale, and partnering closely with engineering so security is embedded in how we build and run systems—not bolted on after the fact. RESPONSIBILITIES: Bare metal, data center & network security Design and implement secure bare-metal and private-cloud architectures (servers, storage, out-of-band management, BIOS/UEFI/BMC firmware posture) Harden physical and virtual fleets: OS baselines (Linux/Windows), CIS benchmarks, patch a

The NISC program at Leidos currently has an opening for a Classification Specialist to work with the Federal Aviation Administration (FAA), which are exciting opportunities to assist in preparing FAA's Human Capital for mission-critical transformational changes by identifying and recruiting a workforce with the leadership, technical and functional skills to ensure the safest and most productive aviation sector. This position is virtual. Selected candidate can work within US. Primary Responsibilities: Serves as a Human Resources Specialist (Classification) responsible for providing position classification and evaluation support to Lines of Business and Staff Offices. Applies comprehensive knowledge and experience in Federal position classification. Develops job descriptions and classifies positions in accordance with applicable position classification standards. Implements standardized position descriptions for a variety of occupations, when applicable. Advises managers on how to design positions for a complex organization. Maintains and ensures position classification accuracy and consistency in interpreting and applying classification standards. Keeps abreast of classification appeal decisions to determine organizational impact and impact on classification practice. Provides management with insight in establishing organizational structures that are efficient, cost effective, and will support desired grade/band levels. Advises management on the accepted principles and rules of judgment in analyzing contentious and complex individual position and organization structure issues. Communicates internal classification policies and procedures. Provides a variety of high-level classification operational and consultative services including quality control of daily classification activities to ensure consistency in decisions as well as compliance