Senior Staff Software Engineer, Platform

SandboxAQ is a high-growth company delivering AI solutions that address some of the world's greatest challenges. They are seeking a Senior Staff Engineer to lead architectural strategy, mentor engineers, and design scalable systems for their Platform & Infrastructure team.

Responsibilities:

• Lead Architectural Strategy: Define and execute the long-term vision for our infrastructure, designing resilient, distributed systems that support our rapidly growing AI workloads
• Mentor and Develop Talent: Provide technical leadership and mentorship to junior and mid-level engineers, fostering a culture of high standards, code quality, and continuous learning
• Systemic Problem Solving: Partner with engineering leads to diagnose complex technical bottlenecks and break down multifaceted infrastructure challenges using first principles into scalable, manageable technical requirements
• Drive Platform Excellence: Design and implement foundational platform services that improve developer experience and reduce operational overhead across the engineering organization
• Collaborate Cross-Functionally: Work closely with product, research, and security teams to ensure our infrastructure is secure, performant, and aligned with the company’s broader mission

Requirements:

• 10+ years of professional software development experience, with a proven track record of designing and scaling complex distributed systems
• Demonstrated experience (5+ years) leading high-impact engineering teams, including mentoring junior engineers and influencing technical strategy at a staff level
• Expertise in cloud-native infrastructure (GCP preferred) Kubernetes at scale
• Expertise in GPU/ML infrastructure for large training, data-generation, and inference workloads, including GPU scheduling, optimization and high-performance networking
• Strong ability to decompose complex technical problems into simplified, incremental, and actionable architectural designs
• Deep proficiency in architectural patterns for high-throughput, low-latency services
• Experience operating in high-growth environments where infrastructure requirements pivot rapidly due to new scientific or product discoveries
• Experience with multi-tenant, data governance, data registries, lineage, and federated access for model tuning with high IP sensitive environments
• Worked in regulated / compliance-bound environments that have data residency, export controls, SOC2, and strict isolation requirements