Jobs at Bluefin Labs

Porter Supervisor at Cabana in Memphis, Tennessee. This personnel management role is responsible for ordering, receiving, inventory management, tracking expenses, and ensuring product and supply availability for the food services department. The role also involves staff scheduling, payroll, and supervision of the porter team, while adhering to food safety and quality assurance practices.

Electrical Reliability Engineer for Data Center Infrastructure at Cabana. This role involves designing, building, and activating advanced data centers and power systems. Responsibilities include detailed electrical design and specification for equipment and systems within a team environment.

Backend Engineer at Cabana responsible for building and maintaining enterprise AI systems. This role involves integrating with complex systems, orchestrating workflows, and applying AI to business operations, requiring expertise in distributed systems, service observability, and databases.

Sous Chef at Twitter in Memphis, Tennessee. Responsibilities include managing cost controls, creating menus and pricing, sourcing ingredients, managing inventory, enforcing food quality, and ensuring kitchen safety. Requires a high school diploma and 3+ years of sous chef or culinary management experience.

Recruiting Coordinator at Cabana in Palo Alto, California. This role focuses on managing the interview process, scheduling, tracking candidate data, and ensuring a positive candidate experience. The ideal candidate is detail-oriented, organized, and adaptable, with experience in fast-paced environments.

Material Handler for a large-scale data center construction project in Southaven, Mississippi. This role supports construction, engineering, and trades teams by ensuring they have necessary materials. Responsibilities include receiving, staging, and delivering materials, and maintaining organized and safe work areas.

Senior Agency Development Manager for Global Brands APAC at Cabana, based in Singapore. This individual contributor role focuses on making 'X' the default recommendation within agencies by owning the agency system and commercial architecture for Global Brands across APAC, including holding-company and regional leadership in Singapore and India. Responsibilities include structuring commercial deals, navigating complex agency structures, and driving agency-sourced revenue influence and partnership quality.

The Barista role at Cabana is an operations position focused on customer service and food/beverage preparation. Responsibilities include maintaining a clean and safe workstation, completing prep tasks, providing customer service, and managing inventory. The role requires familiarity with basic customer service and food safety principles, as well as the ability to use food service equipment.

AI Tutor specializing in multilingual audio for xAI. This role involves training and refining AI models for voice interactions, speech recognition, and auditory experiences across diverse languages and accents. Responsibilities include curating and annotating audio data using proprietary software to enhance global accessibility and natural spoken interactions.

Construction Superintendent, Mechanical for Cabana in Memphis, Tennessee. Oversees mechanical contractors and crews building advanced mechanical infrastructure for data centers, including HVAC and cooling systems. Requires hands-on leadership and experience in complex industrial mechanical construction.

Fiber Technician at Cabana in Memphis, Tennessee. This role involves installing and maintaining fiber optic systems within a data center environment, troubleshooting issues, and performing repairs and replacements of fiber optic cables.

Executive Sous Chef at Cabana in Memphis, Tennessee. This role involves overseeing teams within multiple outlets, ensuring consistency across food offerings, and contributing to high-end food experiences for guests and VIPs. The position requires strong restaurant industry skills, creativity, and a proactive attitude.

xAI is seeking a Jr. Sous Chef to join their culinary team. This role involves managing kitchen inventory, overseeing food preparation, and ensuring food quality and safety. The position requires a high school diploma or equivalency and at least 3 years of restaurant/food service production experience.

xAI is seeking a Senior Network Security Engineer in Austin, TX. This role involves serving as a subject matter expert in network security, managing firewall configurations, deploying network security devices, and developing innovative network security solutions.

IT Systems Engineer at xAI responsible for building, deploying, and managing internal Windows and Linux infrastructure. This role involves supporting complex application stacks, troubleshooting, and collaborating on scalable solutions within a virtual infrastructure environment.

Member of Technical Staff on the Imagine Product team at Cabana in Palo Alto, California. This role involves building and scaling high-performance systems for AI-driven media experiences, focusing on multi-modal media interactions and real-time user experiences.

SpaceXAI is seeking a Program Manager for Data Center Construction in the Memphis, TN area. This senior-level role involves leading Construction Project Managers to oversee the delivery of mission-critical data center facilities, bridging field execution, engineering, and executive leadership.

Mechanical Engineer at Cabana responsible for designing, building, and activating data centers. This role requires subject matter expertise in HVAC, piping, and critical fluid systems, including performing CAD modeling and fluid analyses.

Software Engineer for Platform Security at SpaceXAI. This role involves designing and implementing AI-powered security tools to protect Kubernetes-based infrastructure and advance secure AI systems. Responsibilities include identifying and mitigating vulnerabilities, and championing secure engineering practices.

X Money Support Agent at Cabana in Bastrop, Texas. This role involves resolving customer inquiries across voice, chat, and email, focusing on accounts, transactions, cards, payments, and app functionality. The agent will act as the first point of contact, troubleshooting issues and enhancing the customer experience.

Member of Technical Staff - Sandbox Service at Cabana in Los Angeles, CA. This role involves building and maintaining a secure, scalable system for AI models to access computational environments safely. Responsibilities include provisioning containers and virtual machines, orchestrating jobs, resource scheduling, and fine-tuning filesystem performance.

This is a Senior Analyst, Safety Operations role focused on Child Safety at Twitter. The analyst will train and refine AI models like Grok to enforce terms of service, minimize existential risks, and prevent illegal and harmful content, with a primary focus on protecting minors.

Software Engineer on the X Money team at Cabana, focused on building a global payment network. This backend-heavy role involves designing and optimizing microservices for scalability, security, and reliability, supporting full-stack efforts, and contributing to high-scale financial products.

Reliability Engineer (Data Center Infrastructure) at Twitter in Memphis, Tennessee/Southaven, Mississippi. This role involves designing, building, and activating advanced facilities and data centers, acting as a subject matter expert on critical infrastructure asset maintenance and reliability, and commissioning systems.

Client Account Manager at Cabana in Austin, TX. This role involves collaborating with Fortune 500 advertisers and their agencies to develop and optimize advertising campaigns using the company's platform. Responsibilities include understanding client objectives, recommending best practices, and analyzing campaign performance.

This is a mid-level Data role focused on AI Tutoring for Finnish language audio. The individual will train and refine AI models for voice interactions, speech recognition, and auditory experiences, curating and annotating high-quality audio data to improve global accessibility and natural spoken interactions.

Construction Superintendent, Electrical for SpaceXAI's Memphis Data Center. Oversees electrical contractors and crews building electrical infrastructure including underground duct banks, high-voltage and medium-voltage systems, power distribution, grounding, and lighting. Requires hands-on leadership and experience in complex industrial electrical construction.

Construction Superintendent, Structural role at Cabana in Memphis, Tennessee. This position involves overseeing structural contractors and crews building advanced structural infrastructure for a data center, including foundations, concrete, and steel framing. The role requires hands-on leadership and a focus on complex structural construction.

Electrical Engineer for xAI's AI supercomputing facilities in Memphis. Responsibilities include designing, building, and optimizing power infrastructure, with focus areas in battery storage, power transmission, and power generation. Requires collaboration across multiple engineering disciplines.

xAI is seeking a Civil Engineer to lead the civil and site development design for mission-critical data center campuses and co-located power generation facilities. This role requires expertise in land development, hydrology & hydraulics, and environmental systems to architect resilient infrastructure for AI compute loads.

This is a mid-level Documentation Control Specialist role at SpaceXAI, focused on infrastructure projects like data centers and power plants. The specialist will manage the full lifecycle of project documents, implement and maintain document control processes using various EDMS platforms, and perform advanced document markup and review.

AI Tutor specializing in multilingual audio for Grok. Responsibilities include annotating audio data, translating text into Croatian, and improving the AI's voice interaction capabilities across diverse languages and accents.

AI Tutor specializing in Yoruba for SpaceXAI. This role involves training and refining AI models for voice interactions, speech recognition, and auditory experiences. Responsibilities include annotating audio data, translating text into Yoruba, and ensuring linguistic accuracy and cultural appropriateness.

Client Partner for Global Brands in APAC, responsible for owning brand revenue. This hunter role involves winning new spend, reactivating dormant accounts, and expanding existing partnerships with global brand advertisers and their agency partners across the APAC region. The role reports to the Head of Global Brands, APAC.

This is a Senior Machine Learning Engineer role focused on Ads at Cabana. The engineer will integrate Grok models into the Ads Platform, covering areas like bidding, auction, ranking, and creative generation, and will be responsible for owning and operating revenue-driving systems.

Software Engineer specializing in Kernels/CUDA (C++) at SpaceXAI. This role involves building and optimizing large-scale GPU supercomputers and the platform layer. Responsibilities include developing low-level CUDA kernels, debugging performance bottlenecks, and collaborating with AI research teams to accelerate AI progress.

Mobile Android Engineer at Cabana in Los Angeles, CA. This role involves shaping cutting-edge mobile experiences for an AI application, focusing on technical mastery and product sense to deliver user value. The engineer will work on critical product or technical challenges.

Software Engineer for Consumer Subscriptions at Cabana. This role involves owning the billing and monetization infrastructure for X Premium & SuperGrok, building and leading a team focused on subscriptions, promotions, global payments, and personalized user experiences at scale.

SpaceXAI is seeking a Mechanical Commissioning Lead to oversee the buildout, startup, and handover of mechanical systems for their high-performance data centers. This senior hands-on role involves leading commissioning technicians and collaborating with various stakeholders to ensure the delivery of safe and reliable cooling, air handling, and fluid distribution systems.

This is a senior Construction Project Manager role focused on mission-critical build efforts for a data center in Memphis, Tennessee. The role requires strong engineering background, technical credibility, and leadership to manage end-to-end project execution, site relationships, and collaboration with various teams.

Operations Engineer at Cabana focused on construction and site efficiency. This role involves designing, building, and activating data centers and AI compute facilities, with responsibilities including process flow, equipment integration, project planning, and developing department-level metrics and dashboards.

Network Operations Technician for SpaceXAI's Starlink network and SuperCompute Datacenter Networks. Responsibilities include executing operational responses to real-time network events, facilitating incident response, and managing changes and maintenance to ensure service continuity.

Material Handler supporting a data center construction project in Southaven, Mississippi. This role ensures construction, engineering, and trades teams receive necessary materials by receiving, staging, and delivering them on-site. Responsibilities include interfacing with teams to resolve material bottlenecks and maintaining organized staging areas.

Power Systems Engineer at Cabana responsible for designing, building, and activating advanced data center infrastructure. This role involves electrical engineering for power systems, requiring autonomy in problem-solving and managing multiple projects in a fast-paced environment.

Software Engineer - Observability at Cabana. This role involves building and operating core infrastructure for monitoring, debugging, and optimizing system performance and reliability. Responsibilities include designing scalable observability infrastructure for metrics, logging, and tracing, and developing APIs, query engines, and UIs for real-time insights.

Member of Technical Staff - Voice Product at xAI in Palo Alto, California. This role involves designing, building, and shipping voice features across all platforms for the Grok Voice Product team, focusing on backend engineering for scalable, low-latency voice infrastructure and model integrations.

This is a Fullstack / Web Engineer role at Cabana, focusing on frontend development. The engineer will architect and optimize user-facing features for real-time conversations, working with cutting-edge technologies and scalable backend systems.

Member of Technical Staff - Multimodal Understanding at Cabana in Palo Alto, California. This role focuses on advancing superhuman multimodal intelligence by working across image, video, audio, and text. Responsibilities include designing and optimizing large-scale distributed systems for multimodal pre-training, post-training, inference, and data processing.

SpaceXAI is seeking a Sr. Electrical Commissioning Technician for their data centers. This onsite role involves hands-on commissioning, testing, and troubleshooting of electrical systems, including medium and low voltage power distribution, switchgear, UPS, and generators, to ensure safe and reliable infrastructure.

This is a Senior IT Data Engineer role at xAI. The engineer will implement and support applications for internal customers, focusing on data strategy, ETL patterns, and infrastructure. Responsibilities include partnering with business and engineering teams to deliver results and collaborating in a fast-paced environment.

This is a contract Recruiting Coordinator role supporting the JAPAC Talent Acquisition team. The coordinator will schedule interviews across time zones, maintain the Applicant Tracking System (ATS), communicate with candidates, and partner with recruiters and hiring managers.

This is a Senior Structural Engineer role focused on data centers and large-scale compute clusters. The engineer will lead structural design and analysis, collaborate with cross-functional teams, and ensure designs meet requirements for extreme compute densities, seismic resilience, and operational uptime.

The Mechanical Commissioning Technician will support the buildout and startup of high-performance data centers. This hands-on role involves commissioning, testing, and troubleshooting mechanical systems for cooling, air handling, and fluid distribution. The technician will collaborate with construction, engineering, and operations teams and will travel to data center sites.

Software Engineer on the Colossus Networking team at xAI. This role involves developing core networking software to maximize the performance and reliability of their datacenter fabric, directly impacting AI model training efficiency. The engineer will own the full software lifecycle and solve complex problems in distributed systems and high-performance networking.

This is a Data Center Supervisor role at SpaceXAI in Memphis, Tennessee. The supervisor will oversee the health and performance of server and network infrastructure, leading a team of technicians to ensure optimal operations and continuous improvement in mean time to detect (MTTD) and mean time to repair (MTTR). Responsibilities include hands-on technical leadership, process optimization, and cross-functional collaboration.

Construction Superintendent, Electrical (night Shift) for SpaceXAI in Memphis, Tennessee. Oversees electrical contractors and crews building advanced electrical infrastructure for a data center, including underground duct banks, high-voltage systems, and power distribution.

This is an entry-level line cook position at Cabana in Memphis, Tennessee. The role involves food preparation, operating a station at a food outlet, and maintaining a clean and safe workstation. Responsibilities include completing daily prep tasks, cooking and plating dishes, and cleaning kitchen equipment.

Power Generation Engineer at xAI responsible for the reliable operation and optimization of natural gas power generation plants. This role involves overseeing daily operations of natural gas turbines and associated equipment, ensuring high-efficiency power delivery to an AI datacenter.

SpaceXAI is hiring High Voltage Electricians for their internal construction team to build data centers. This is a traveling role for journeyman linemen and substation electricians who will install, build, and energize high-voltage substation and interconnect facilities (69 kV and above). The position is hourly with overtime and requires 80% or more travel.

This is a Fraud Analyst role within the BSA/AML team, focusing on detecting, investigating, and mitigating financial crime risks, particularly fraud. The role requires monitoring alerts, reviewing customer activity, and ensuring compliance with BSA/AML regulations.

Software Engineer on the X Money team focused on backend development for a global payment network. Responsibilities include designing and optimizing microservices, supporting full-stack efforts, and collaborating on payments, fraud detection, and compliance.

Senior Identity and Access Management (IAM) Engineer responsible for designing, implementing, and maturing the enterprise IAM ecosystem. This hands-on role involves owning complex IAM initiatives end-to-end, from strategy to optimization, and collaborating with various engineering and security teams.

As a Fiber Technician III at SpaceXAI's Memphis data center, you will lead a team in installing, maintaining, and optimizing fiber optic infrastructure. You will manage all project phases, ensure a safe and productive work environment, and troubleshoot critical issues to support the company's AI mission.

Technical Recruiter at SpaceXAI responsible for full-cycle recruiting for technical roles. This involves identifying, engaging, and closing exceptional technical talent by understanding hiring requirements, candidate motivations, and communicating effectively.

This is a Senior Software Engineer, Media role at Cabana in Seattle, WA. The engineer will integrate AI infrastructure into a platform used by 600 million users, focusing on transforming the video product experience. Responsibilities include building next-generation video services and rebuilding media processing pipelines.

Machine Learning Engineer specializing in Recommendation Systems at Cabana. This role involves designing and architecting recommendation algorithms, leveraging AI stacks to enhance user experience, and building data pipelines for continuous learning from product data.

This is a Facilities Maintenance Assistant role at SpaceXAI in Memphis, Tennessee. The position involves supporting the upkeep of supercomputing data center facilities by assisting with routine non-critical maintenance tasks and basic operations on critical equipment under supervision.

The Facilities Operations Supervisor in Memphis will oversee data center infrastructure maintenance, including power, cooling, and environmental systems. This role involves leading a team of technicians, optimizing processes, and ensuring the reliability and efficiency of the data center.

Member of Technical Staff - Grok Product at Cabana in Palo Alto, California. Responsible for the user-facing chat portal at grok.com and related experiences, building highly scalable frontends, APIs, and features. Focuses on delivering a seamless, intuitive, and maximally useful chat interface to amplify human productivity.