Systems Phd Jobs

Customer Care Expert - Enterprise Start Date: December 14th - Training is 8-10 weeks, and will be remote. There is no PTO allowed during training, you will need to be present for each day of training. Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. A day in the life The Toast Enterprise Support team delivers advanced, omnichannel technical support to our most complex enterprise clients — corporate restaurant brands, national franchises, and international locations. As an Enterprise Support Expert, you'll resolve highly complex, high-risk technical issues across a broad and varied product landscape, manage demanding enterprise stakeholders, and bring order to a fast-paced, ambiguous environment — all while fielding incoming questions across phone, chat, and email. What you’ll do (Responsibilities) Troubleshoot hardware, financial transaction mechanics, API integrations, and menu configuration issues across a wide range of Toast products for our Enterprise customers. Diagnose and resolve issues at the intersection of Toast and third-party systems, including 3rd party ordering APIs and enterprise accounting integrations, following established troubleshooting paths and escalating when a case falls outside documented guidance. Manage a steady mix of inbound case traffic across phone, chat, and email, keeping your active case backlog current and flagging aging cases to your lead or manager. Help triage incoming workload based on account tier and urgency, following team guidelines on prioritization. Communicate clearly across audiences — from front-of-house restaurant staff to corporate IT contacts — translating technical issues into actionable guidance. Support de-escalation of difficult customer situations, bringing in your manager or a senior teammate on high-stakes, financially impacted, or executive-level cases.

About Decagon Decagon is the leading conversational AI platform empowering every brand to deliver concierge customer experiences. Our technology enables industry-defining enterprises like Avis Budget Group, Block’s Cash App and Square, Chime, Oura Health, and Hunter Douglas to deploy AI agents that power personalized, deeply satisfying interactions across voice, chat, email, SMS, and every other channel. We’re building a future where customer experiences are being redefined from support tickets and hold music to faster resolutions, richer conversations, and deeper relationships. We’re proud to be backed by world-class investors who share that vision, including a16z, Accel, Bain Capital Ventures, Coatue, and Index Ventures, along with many others. We’re an in-office company, driven by a shared commitment to excellence and velocity. Our values — Just Get It Done, Invent What Customers Want, Winner’s Mindset, and The Polymath Principle — shape how we work and grow as a team. About the Team Product Engineering at Decagon builds all aspects of the platform our customers use to create, operate, and improve their AI agents. We turn work that currently requires an engineer into product that a CX team can run themselves. This team is core to how Decagon scales. The frameworks we build support every agent we have in production, each with its own workflows, data, and constraints. We build the agents too, and that’s what keeps the platform honest: a failure mode we debug in production becomes a guardrail, an eval, or a piece of tooling that catches it everywhere. Our agents run for companies like Hertz, American Airlines, and Notion across chat, voice, email, and SMS. About the Role You’ll design and build the systems that let customers configure, train, test, and monitor sophisticated AI agents with confidence. That means strong engineering underneath, and abstractions on top that hold up across different use cases without forking per customer. You’ll work day to day with prod

ABOUT ORCHESTRA Orchestra is a strategic communications and marketing company built for today’s complex and fragmented world. From decoding audiences to designing bold strategies, Orchestra integrates people, platforms, and stories that stick to help clients build lasting influence. The company offers programs that span from the highest level strategic business counsel through to tactical execution. Orchestra brings together 700+ people with experience across consumer and lifestyle, technology, nonprofit and philanthropy, real estate, sports, travel, hospitality, and more. Made up of leading firms BerlinRosen , Civitas Public Affairs Group , Derris , Glen Echo Group , Inkhouse , M18 , Message Lab , Onward and Small Girls PR . It also launched Brightmode , a talent acquisition firm for communications professionals, and Versus Media Group , a strategy-first political media team. Learn more at www.orchestraco.com . People of all backgrounds and abilities are strongly encouraged to apply. Orchestra is committed to building and maintaining a diverse staff, and recognizes that its continued success depends on hiring and retaining high-quality creative professionals with a variety of backgrounds and experiences. Opportunities for advancement exist, and we are committed to helping all staff develop and grow. ABOUT THE ORCHESTRA FINANCE TEAM The Orchestra Finance Team oversees financial results and works with our teams on client finance, growth strategies and the overall financial health of the company. We are responsible for the successful integration with our new partner companies as well as any future acquisition activity. We work with management and other key agency stakeholders to drive profitability and monitor key performance indicators. We are growing a team of experienced finance professionals, change agents, Excel masters and complex problem-solvers to collaborate cross-functionally to assess financial strategies, systems and processes in an effort to drive the ful

Zoox is on a mission to reimagine transportation and ground-up build autonomous robotaxis that are safe, reliable, clean, and enjoyable for everyone. We are still in the early stages of deploying our robotaxis on public roads, and it is a great time to join Zoox and have a significant impact in executing this mission. The ML Platform team at Zoox plays a crucial role in enabling innovations in large-scale Foundation models, VLMs, and VLAs to make autonomous driving as seamless as possible. The Opportunity Are you excited to drive our ML Performance Optimization initiatives and make our ML models that enable autonomous driving as fast and efficient as possible? You will get to work with SOTA accelerators, cutting-edge techniques in distributed training, quantization, distillation, and pruning, among other things, working closely with all the Autonomy teams within Zoox - Perception, Prediction, Planner, Simulation, Collision Avoidance, and have the opportunity to significantly push the boundaries of how ML is practiced within Zoox. We build and operate the base layer of ML tools, model development, and serving systems that our applied research teams use for in- and off-vehicle ML use cases. You will work alongside a team of strong software engineers and act as a force multiplier for our internal customers. This team has many growth opportunities as we expand our robotaxi deployments and venture into new ML domains. If you want to learn more about our stack behind autonomous driving, please look here. If you want to learn more about our ML Infrastructure, here is one of our past talks at re:Invent. In this role, you will: Design, implement, and operate cutting-edge ML training performance optimization techniques — distributed training (data/tensor/pipeline parallelism), mixed-precision, gradient checkpointing, and GPU kernels — to scale our VLM, VLA, and Foundational models training efficiency. <

Zoox is on a mission to reimagine transportation and ground-up build autonomous robotaxis that are safe, reliable, clean, and enjoyable for everyone. We are still in the early stages of deploying our robotaxis on public roads, and it is a great time to join Zoox and have a significant impact in executing this mission. The ML Platform team at Zoox plays a crucial role in enabling innovations in large-scale Foundation models, VLMs, and VLAs to make autonomous driving as seamless as possible. The Opportunity Are you excited to drive our ML Performance Optimization initiatives and make our ML models that enable autonomous driving as fast and efficient as possible? You will get to work with SOTA accelerators, cutting-edge techniques in distributed training, quantization, distillation, and pruning, among other things, working closely with all the Autonomy teams within Zoox - Perception, Prediction, Planner, Simulation, Collision Avoidance, and have the opportunity to significantly push the boundaries of how ML is practiced within Zoox. We build and operate the base layer of ML tools, model development, and serving systems that our applied research teams use for in- and off-vehicle ML use cases. You will work alongside a team of strong software engineers and act as a force multiplier for our internal customers. This team has many growth opportunities as we expand our robotaxi deployments and venture into new ML domains. If you want to learn more about our stack behind autonomous driving, please look here. If you want to learn more about our ML Infrastructure, here is one of our past talks at re:Invent. In this role, you will: Lead the design, implementation, and operation of training performance optimizations (data/tensor/pipeline parallelism, mixed precision, gradient checkpointing, GPU kern

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done. Snowflake is about empowering enterprises to achieve their full potential — and people too. With a culture that's all in on impact, innovation, and collaboration, Snowflake is the sweet spot for building big, moving fast, and taking technology — and careers — to the next level. Snowflake redefined the data landscape over a decade ago, and our biggest opportunity is also our customers' biggest challenge: migration. For every enterprise ready to harness the power of the AI Data Cloud, there lies a complex web of legacy systems that can take years and millions of dollars to untangle. We believe Generative AI is the key — we are building products that don't just move data, but understand and rewrite the logic of entire data applications. We are seeking a Manager, Frontier Engineering (Migrations) to sit at the intersection of customer delivery and product engineering. This is a unique hybrid role: you will lead a team of forward-deployed engineers who work directly with customers and partners on complex migration projects while simultaneously driving the development of AI-powered migration tools and products. Your team will be the bridge between field realities and product innovation — turning hard-won migration patterns into scalable, automated solutions. AS A MANAGER, MIGRATI

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team Our tax team works with Stripes across the company to develop an efficient tax structure, as our international business scales and expands into new markets. We are looking for a well-rounded and seasoned tax professional to help us lead this effort. What you’ll do This function will be responsible for indirect tax advisory as it pertains to our international entities. Responsibilities include determining the taxability of new products coming to market, supporting management of indirect tax audits and other indirect tax matters with local tax authorities, and working with our indirect tax systems and compliance leads on day-to-day matters. The ideal candidate should be able to work well with cross-functional teams. The candidate must be able to communicate and promote indirect tax advisory needs across Stripe and its subsidiaries, and communicate complex indirect tax concepts in ways that are meaningful and useful to non-tax professionals. The candidate will be able to work with a high level of collegiality, working on projects spanning multiple teams. The position will be based in the US and report to the International Indirect Tax Advisory Lead. Responsibilities Be an indirect tax subject matter expert (global VAT/GST) and resource to our business and finance teams in Stripe, managing aspects of our indirect tax planning and operations Support Stripe's expansion internationally Participate in policy matters affecting indirect taxes inte

In 2026, we launched Computer, the defining product for the new era of agentic AI. Millions of people now use Perplexity to transform knowledge into action, and a growing share of them meet us first on their phone. The Growth team owns the product loops that help people discover, adopt, and build lasting habits around our most important AI experiences — and on mobile that means owning everything from the App Store listing to the first task a user finishes to the moment they upgrade. As an Android growth engineer at Perplexity, you'll work across the full mobile funnel — install, activation, onboarding, push and lifecycle messaging, conversion, retention, and in-app purchase moments — for Perplexity, Comet, and Computer on Android. Engineers are responsible for end-to-end projects: rebuilding onboarding as a series of experiments, wiring in-app purchase and paywall surfaces to our billing systems, shipping notification experiences people actually keep enabled, and turning ASO and deep-link work into measurable adoption. Growth at Perplexity goes beyond incremental funnel optimization. The team sits close to the core product — we translate behavioral signals, model outputs, and fast experimentation into durable product surfaces used across consumer and enterprise workflows. You'll move fast, run many experiments in parallel, and own the outcome end-to-end, while respecting the constraints mobile brings: release cycles, store review, and version fragmentation. Why Perplexity is different Craftsmanship. We build high quality, tasteful products targeting both the AI native and AI curious. Ownership. You identify the problem, design the solution and ship it. Entrepreneurship. We think like founders, act with urgency, and hustle to deliver for each other and our users. Scholarship. Work among highly talented peers, pursuing knowledge and truth, upleveling ourselves, our teams, and our products. Partnership. We amplify each others' strengths, break down silos, and give self

In 2026, we launched Computer, the defining product for the new era of agentic AI. Millions of people now use Perplexity to transform knowledge into action, and a growing share of them meet us first on their phone. The Growth team owns the product loops that help people discover, adopt, and build lasting habits around our most important AI experiences — and on mobile that means owning everything from the App Store listing to the first task a user finishes to the moment they upgrade. As a mobile growth engineer at Perplexity, you'll work across the full mobile funnel — install, activation, onboarding, push and lifecycle messaging, conversion, retention, and in-app purchase moments — for Perplexity, Comet, and Computer on iOS. Engineers are responsible for end-to-end projects: rebuilding onboarding as a series of experiments, wiring in-app purchase and paywall surfaces to our billing systems, shipping notification experiences people actually keep enabled, and turning ASO and deep-link work into measurable adoption. Growth at Perplexity goes beyond incremental funnel optimization. The team sits close to the core product — we translate behavioral signals, model outputs, and fast experimentation into durable product surfaces used across consumer and enterprise workflows. You'll move fast, run many experiments in parallel, and own the outcome end-to-end, while respecting the constraints mobile brings: release cycles, store review, and version fragmentation. Why Perplexity is different Craftsmanship. We build high quality, tasteful products targeting both the AI native and AI curious. Ownership. You identify the problem, design the solution, and ship it. Entrepreneurship. We think like founders, act with urgency, and hustle to deliver for each other and our users. Scholarship. Work among highly talented peers, pursuing knowledge and truth, upleveling ourselves, our teams, and our products. Partnership. We amplify each others' strengths, break down silos, and give selflessl

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. The Auth0 platform secures more than 100 million logins each day for customers all around the world. The Platform Infrastructure team enables Auth0 engineers to move faster by giving them tools to easily deploy and manage their services on AWS and Azure. This is a role within a team that has a huge impact. You will get to work with engineers throughout the organization and what you build will be a cutting-edge, foundational piece of the infrastructure that allows Auth0 to scale for years to come. We are looking for Engineers who are passionate about distributed systems, performance and scaling, and delivering customer value. Because we build and support the overall Auth0 platform, the ideal candidate is someone who is passionate about infrastructure, operations, and not intimidated by cross-organization coordination and collaboration. You will: Develop and maintain a scalable platform runtime using infrastructure-as-code, enabling teams to seamlessly deploy and manage services across Kubernetes, AWS, and Azure. Tackle highly ambiguous requirements to architect scalable, resilient infrastructure solutions for cross-cutting concerns (e.g., service discovery, routing), while setting platform best practices. Proactively identify performance bottlenecks and advocate for new technologies to optimize platform resiliency, scale, and cost. Use observability tools like DataDog and Prometheus to design SLIs and enforce platform SLOs. Design secure-by-defa

POSITION OVERVIEW The Project Manager, Field Operations owns the successful execution of builder projects from quote through final invoice. Serving as the primary operational liaison among builder customers, outside and inside sales, scheduling, dispatch, installation teams, and other internal partners. This role keeps projects accurate, on target, and on time. The position coordinates installation schedules, monitors quality, resolves issues, and ensures every operational detail is carried through to completion in a fast-paced, collaborative and growing environment. KEY RESPONSIBILITIES · Own assigned strategic builder projects from the transition out of pre-sales through installation, completion, and final invoicing. · Coordinate closely with builder customers, outside sales, inside sales, scheduling, dispatch, installation teams, and other operational partners to maintain clear expectations and project alignment. · Develop, monitor, and communicate project schedules, installation timelines, material readiness, and key milestones. · Confirm project information, selections, measurements, orders, and installation details are complete and accurate before work progresses. · Monitor project quality and installation performance; document outcomes and any corrective actions needed · Conduct jobsite visits or walkthroughs as needed to confirm work meets customer expectations and company standards as well as preview walks for project feasibility and pre-installation readiness · Identify risks, delays, scope questions, and quality concerns early; understand appropriate escalation points and drive issues through resolution. · Keep customers, sales partners, and internal teams informed of project status, changes, decisions, and next steps. · Maintain accurate and timely project information in CRM, ERP, Dispatch Track, and other core business systems. · Coordinate punch-list items, corrections, and final closeout activities to ensure the project is fully completed before invoi

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here . We are looking for a Staff Machine Learning Engineer to lead the technical vision for our Ads Conversion Core Modeling team, building the state-of-the-art systems that power our global marketplace. What you’ll do: Lead the technical direction and development of state-of-the-art applied ML projects for ads conversion. Design and build large-scale DNN models to improve user action prediction with low latency. Mine text, visual, and user signals to better understand intention and infer interests from online activity. Use AI to accelerate analysis and iteration, while applying judgment and verification to ensure correctness and quality. Automate repeatable tasks such as documentation, reporting, and QA checks to speed up the development lifecycle. Coach and mentor engineers whi

About the Role We're hiring the best people in the market, and we need a sourcer who can help us find and win them. As a Recruiting Sourcer, you'll build and nurture the top of the funnel for our business-side hiring across Go-to-Market, Infrastructure Strategy, and G&A. You'll work with senior recruiting partners and business leaders on critical, hard-to-fill searches. Your first priority will be clearing our open searches by finding and engaging exceptional, mostly passive candidates. Over time, you'll build a warm pipeline of top-tier talent and a repeatable sourcing playbook that helps us scale. This is a chance to tell Together AI's story to people who are already doing great work elsewhere, and to see that work turn into real hires. Responsibilities Source, engage, and nurture top-tier passive candidates across GTM, Infrastructure Strategy, and G&A, including Enterprise Sales, Solutions Engineering, Sales leadership, Marketing, Customer Success, Director-level G&A, and Strategy and Infrastructure roles at the intersection of finance and AI compute. Partner with hiring managers and recruiters to calibrate on roles and ideal candidate profiles before sourcing Write personalized outreach that conveys Together AI's story and resonates with each candidate Proactively build pipelines for current and future roles, without waiting to be assigned Build and maintain long-term relationships with top-tier talent Track key sourcing metrics and use data to refine strategy and improve results Develop repeatable sourcing systems and a playbook to scale as hiring grows Work within our sourcing and recruiting stack, including GEM, LinkedIn Recruiter, Noon AI, and Greenhouse Adapt quickly as priorities shift and move between functions with ease Requirements 5+ years of sourcing experience (strong candidates with 3-4 years and exceptional results on hard-to-fill roles are also encouraged to apply) Track record sourcing senior passive talent for critical, hard-to-fill

Titan Security is built on serving our clients and building careers – just like yours. We are trusted by some of the most well-known companies and properties in the country while remaining dedicated to building personalized security solutions that solve the needs of every customer we support. Named as a nationally recognized Top Workplace in 2024 and 2025 by USA Today, Titan's customized approach to security services will provide you with the opportunity to learn, grow and succeed. Our core values of being Unified, Transparent, Innovative, Committed and Accountable help us in providing unparalleled service and support in all that we do. If you are looking for a meaningful career, a culture of excellence, and the ability to make a difference, we want to talk to you! Titan Security is currently hiring a Security Officer to work at a location in Melvindale, Michigan. Responsibilities of Security Officers include, but are not limited to: Provide excellent customer service to all parties encountered while on duty, including assisting with directions and general business information. Must be able to walk 5-10 miles per shift doing rounds. Must have good working knowledge of computers, sending emails, logging information. Ability to stand/sit/walk for extended periods of time. Control access for patrons, visitors or vendors as required. Monitor and authorize entrance and departure of employees, visitors, and other persons to guard against theft and maintain security of premises. Write reports of daily activities and irregularities, such as equipment or property damage, theft, presence of unauthorized persons, or unusual occurrences. Monitor the assigned lots and conduct mobile patrols to guard against theft and maintain a safe environment. Maintain clear, accurate logs pertaining to people or property including packages. Effectively utilize access control systems and CCTV systems as needed. Ensure guests and vendors are properly greeted when entering the building. O

About Clutch: We’re on a mission to reinvent the way people buy, sell, and own cars. Are you game? Clutch is Canada’s largest online used car retailer, delivering a seamless, hassle-free car buying and selling experience to drivers everywhere. Customers can browse hundreds of cars from the comfort of their home, get the right one delivered to their door, and enjoy peace of mind with our 10-Day Money-Back Guarantee… and that’s just the beginning. Named two years in a row to the Globe & Mail’s list of the Top Growing Companies in Canada and awarded spots on Deloitte’s Technology Fast 50™ and Fast 500™ lists, we’re looking to add curious, hard-working, and driven individuals to our growing team. Headquartered in Toronto, Clutch was founded in 2017 and currently services Ontario, New Brunswick, Nova Scotia, and Prince Edward Island. To learn more, visit clutch.ca. About the role: We are on a mission to build a world-class team that drives innovation, growth, and excellence. As we scale rapidly, we are looking for an Automotive Apprentice Technician to join our reconditioning facility team. This role ensures that all vehicles meet Clutch’s high mechanical and safety standards and that repairs and maintenance are performed efficiently. You will help keep our reconditioning process on track, ensuring vehicles are ready for customer delivery and sale. What you’ll do: Perform Clutch standardized vehicle inspections, including stationary checks and road tests Diagnose and assess mechanical and safety issues, identifying necessary repairs and preventative maintenance Provide recommendations on repairs and best course of action based on inspection results Complete routine maintenance and minor repairs, such as brake jobs, suspension work, tire services, battery replacement, fluid changes, etc. Document all repairs, maintenance work, and inspection findings accurately in Clutch systems Adhere to Clutch’s mechanical and safety standards, contributing to ongoing process improv