Site Reliability Engineer - Data Center
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Application is a CV plus a mandatory 'statement of exceptional work' — reviewed by engineers, not recruiters. Then a 15–30-minute phone screen with an engineer, and a main loop xAI's own job postings target to finish within ONE week: a coding assessment in your language of choice, two role-specific technical deep-dive sessions, and a 'Meet the Team' round where you present your exceptional work and your vision for xAI to a small audience. Coding is applied class design (key-value stores with transactions, LRU caches, iterators) that hardens via mid-problem extensions — completeness and bug-free code beat big-O talk — and design rounds demand working code in the same session. There is no dedicated behavioral or values round; decisions land within days with no hiring committee. Some loops run all-remote on Google Meet, others add an in-person Palo Alto onsite.
Read the full xAI interview process →Description
SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.
ABOUT THE ROLE:
As a Site Reliability Engineer focused on Hardware, you will serve as an expert focused on firmware, hardware specifications, vendor relations, and failure analysis. You will proactively identify and resolve hardware issues, manage RMA processes, and stay ahead of emerging hardware technologies to support SpaceXAI's data center operations. This role demands deep technical expertise in hardware diagnostics, and forward-looking hardware evaluation.
RESPONSIBILITIES:
- Analyze firmware packages and hardware specifications for upcoming releases for compatibility, performance, and reliability in SpaceXAI's data center environment. Run security scanning and CVE / vulnerability analysis on firmware and related components. Flag safety issues (electrical, thermal, power-protection, fail-safe behavior) before the package hits the floor.
- Investigate and diagnose hardware failures, including "grey failures" (ambiguous or intermittent issues), proving them as true hardware defects through rigorous testing and data analysis.
- Manage vendor relationships, including initiating RMA (Return Merchandise Authorization) claims, negotiating beyond standard processes when necessary, and holding vendors accountable for resolutions.
- Collaborate with Data Center Operations Technicians to troubleshoot, repair, and optimize hardware systems in real-time.
- Develop and implement monitoring tools, scripts, and processes to detect hardware anomalies early and minimize downtime.
- Document failure modes, RCAs, AFR / reliability models, RMA outcomes, and hardware evaluations into a team knowledge base.
- Participate in on-call rotations and incident response for hardware-related issues in the Memphis data center
BASIC QUALIFICATIONS:
- Bachelor's degree in Systems Engineering, Electrical Engineering, Computer Science, or a related field (or equivalent experience).
- 2+ years of experience in hardware reliability engineering, preferably in high-performance computing or data center environments.
- Proven expertise in firmware analysis, hardware specifications review, and release validation.
- Strong experience with RMA processes, including filing claims, vendor negotiations, and pushing for resolutions outside standard protocols.
- Demonstrated ability to diagnose and prove complex hardware failures, including grey or intermittent issues, using tools, logic analyzers, or diagnostic software.
- Familiarity with data center hardware components (e.g., servers, GPUs, networking equipment) and emerging technologies.
- Proficiency in scripting (Python, Bash) for automation and analysis, plus general experience in at least one systems language (C, C++, Java, Rust, or similar). Not required to be expert in all of them.
- Excellent problem-solving skills with a data-driven approach to reliability engineering.
- Ability to work collaboratively with cross-functional teams, including operations technicians.
PREFERRED SKILLS AND EXPERIENCE:
- Experience in AI/ML infrastructure or supercomputing environments.
- Knowledge of vendor ecosystems (e.g., NVIDIA, Dell, HP, Supermicro) and supply chain management.
- Certifications in hardware engineering or reliability (e.g., CRE, CompTIA Server+).
- Prior work in a fast-paced startup or tech company like SpaceXAI.
SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.