Ai Infrastructure Systems Engineer Jobs

About Scale Scale builds AI systems for decisions that matter. We started out providing the data and evaluation behind many of the world's leading models, and we still work with the major frontier labs on research and post-training. Today we also build full applications: we take an organisation's own data and expertise, forward deploy alongside their teams, and build the systems they come to rely on, powered by the Scale GenAI Platform. The Role Defence is under pressure to adopt AI at pace. The 2025 Strategic Defence Review and the Defence AI Strategy push for AI to move from experiment to operational capability, Defence Digital and UK Strategic Command are driving digital and data programmes across the department, and the enabling organisations are being asked to field reliable systems, not pilots. Scale wants to play a foundational role in building the dependable AI applications that shift depends on. We're looking for someone to lead that work across UK defence and the national security community. You'd own our commercial relationships across the Ministry of Defence and its enabling organisations - Defence Digital, UK Strategic Command, DE&S, and Dstl - and the broader defence and security customer base. This is a critical role reporting directly to the new Public Sector leader. You'd carry a number, win deals yourself, and build a small team behind you as the work grows. It suits someone who has sold into defence before and knows how it actually makes decisions, not just how the org charts look. What you'll do Own our commercial plan and pipeline for UK defence and security Find, shape, and close deals yourself, from the first conversation through to contract and into delivery Use the relationships you already have across the MOD, Defence Digital, UK Strategic Command, DE&S, Dstl, and the security and intelligence community Work the defence routes to market, and know which are worth the effort and which aren't (the Defence Sourcing Portal, DASA, JOSCAR

About Scale Scale builds AI systems for decisions that matter. We started out providing the data and evaluation behind many of the world's leading models, and we still work with the major frontier labs on research and post-training. Today we also build full applications: we take an organisation's own data and expertise, forward deploy alongside their teams, and build the systems they come to rely on, powered by the Scale GenAI Platform. The Role Defence is under pressure to adopt AI at pace. The 2025 Strategic Defence Review and the Defence AI Strategy push for AI to move from experiment to operational capability, Defence Digital and UK Strategic Command are driving digital and data programmes across the department, and the enabling organisations are being asked to field reliable systems, not pilots. Scale wants to play a foundational role in building the dependable AI applications that shift depends on. We're looking for someone to lead that work across UK defence and the national security community. You'd own our commercial relationships across the Ministry of Defence and its enabling organisations - Defence Digital, UK Strategic Command, DE&S, and Dstl - and the broader defence and security customer base. This is a critical role reporting directly to the new Public Sector leader. You'd carry a number, win deals yourself, and build a small team behind you as the work grows. It suits someone who has sold into defence before and knows how it actually makes decisions, not just how the org charts look. What you'll do Own our commercial plan and pipeline for UK defence and security Find, shape, and close deals yourself, from the first conversation through to contract and into delivery Use the relationships you already have across the MOD, Defence Digital, UK Strategic Command, DE&S, Dstl, and the security and intelligence community Work the defence routes to market, and know which are worth the effort and which aren't (the Defence Sourcing Portal, DASA, JOSCAR

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About the Role We are hiring a Director of Expert Supply Growth to build and lead the engine that brings high-quality experts into Snorkel’s AI Expert Network. This role is hybrid ( 3 days/week in office) in San Francisco, CA or New York, NY. This role owns supply acquisition end to end: translating demand for specific skills and domains into a channel strategy, then ensuring those channels produce qualified experts who activate, complete accepted work, and remain available when the business needs them. You will lead a portfolio that includes scaled acquisition, referrals and community, partnerships with industry organizations and higher-education institutions, and BPO and staffing partners. You will decide which levers to use by domain, geography, worker type, lead time, quality, and economics, then build the team, systems, partnerships, and operating cadence required to scale them. What You’ll Do Define the long-term expert acquisition strategy. Determine how Snorkel will attract, develop, and retain the expert capabilities that strengthen its AI Expert Network as a strategic asset. Build a differentiated base of human intellectual capital through distinctive sourcing channels, trusted communities and partnerships, and durable expert relationships. Focus investment on capabilities and network strengths that improve the company’s ability to serve customers and are difficult for competitors to replicate. Own the end-to-end supply growth str

About the AI Security Institute The AI Security Institute is the world's largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. We’re in the heart of the UK government with direct lines to No. 10 (the Prime Minister's office), and we work with frontier developers and governments globally. We’re here because governments are critical for advanced AI going well, and UK AISI is uniquely positioned to mobilise them. With our resources, unique agility and international influence, this is the best place to shape both AI development and government action. Please submit your application to our Expression of Interest if you are interested in joining AISI as a Research Director, but do not see a role listed that suits your skills and experience. Our talent team will reach out should a role arise that may be a good match. Please note, these roles would be specifically scoped at Level 7. What We Offer Impact you couldn't have anywhere else Incredibly talented, mission-driven and supportive colleagues. Direct influence on how frontier AI is governed and deployed globally. Work with the Prime Minister’s AI Advisor and leading AI companies. Opportunity to shape the first & best-resourced public-interest research team focused on AI security. Resources & access Pre-release access to multiple frontier models and ample compute. Extensive operational support so you can focus on research and ship quickly. Work with experts across national security, policy, AI research and adjacent sciences. Growth & autonomy If you’re talented and driven, you’ll own important problems early. 5 days off and annual stipends for learning and development, and funding for conferences and external collaborations. Freedom to pursue research bets without product pressure. &

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About This Role The Fellow Program is a critical new initiative at Snorkel AI, designed to build and scale the expert workforce powering our ability to deliver exceptional outcomes for customers. We are building the people foundation for a program that will grow through rolling cohorts, new geographies, and a potential workforce expected to scale into the thousands. We are looking for a strategic, entrepreneurial Staff HRBP to help shape what this program becomes. This is not a traditional support role. You will own the people strategy and operating model for one of Snorkel’s most important growth initiatives, partnering directly with senior leaders to design how Fellows are hired, onboarded, developed, deployed, recognized, and supported throughout their employment lifecycle. This is a rare 0-to-1 opportunity for a thoughtful builder who enjoys turning ambiguity into momentum. You will create the programs, practices, and manager capabilities that enable a new workforce model to scale with quality, speed, and a standout employee experience. The work you do will have a visible impact on our Fellows, our customers, and Snorkel’s ability to scale. This role is hybrid ( 3 days/week in office) in San Francisco, CA. What You'll Do This role reports to the Senior Director, People Programs & Partnerships, and will focus on: Own the people strategy and operating model for the Fellow Program, translating ambitious program goals and workforce needs into a clea

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About the Role Coding Fellows create high-quality technical content used to train and evaluate AI systems. Depending on the project and each Fellow’s strengths, their work may include writing and reviewing code, opening pull requests, creating annotations or documentation, improving others’ work, and coaching peers. We are looking for a leader to directly manage a portfolio of Fellows who may contribute across multiple projects over time. Project delivery teams own day-to-day tasks, priorities, and outcomes; this role owns the people-management layer across projects, including expectations, performance, support, development, administration, and a fair, consolidated view of each Fellow’s contribution. This is a people-first role. You should have enough technical depth to understand and discuss Fellow work, but you will not be the day-to-day technical lead or approver for every project. What you will do Lead and support Coding Fellows Build trusted relationships through regular one-on-ones and ongoing communication. Understand each Fellow’s strengths, goals, challenges, and support needs; set clear expectations; and partner with People Operations and project leaders on onboarding and administrative matters. Own cross-project performance management Set expectations for quality, reliability, collaboration, communication, flexibility, learning, and professional conduct. Gather and synthesize feedback across projects, accounting for assignment complexity, pro

We are seeking an experienced and detail-oriented US Payroll Specialist to oversee our end-to-end multi-state payroll operations. In this role, you will ensure accurate, timely, and compliant payroll processing for all US-based employees while managing internal payroll initiatives. The ideal candidate is a strategic problem-solver with deep expertise in US labor laws, taxation, and ADP+Workday payroll systems. You will: Full-Cycle Payroll Processing: Oversee the accurate and timely processing of multi-state bi-weekly and semi-monthly payrolls for over a thousand exempt and non-exempt employees across most of the USA. Compliance & Taxation: Ensure strict adherence to federal, state, and local tax laws, as well as FLSA regulations. Monitor regulatory changes and update internal systems accordingly. Year-End Processing: Manage year-end payroll activities, including W-2 and W-2c generation, fringe benefit reporting, and annual tax reconciliations. Cross-Functional Collaboration: Partner closely with HR to ensure accurate data flow for onboarding, offboarding, benefits deductions, and compensation changes. Ability to work with Accounting to ensure accurate general ledger mapping, month-end close procedures, and payroll account reconciliations. System Administration & Optimization: Act as the primary subject matter expert for our payroll system (e.g., Workday, ADP). Identify bottlenecks, recommend process improvements, and lead system upgrades or implementations. Issue Resolution, Continuous Improvement & Auditing: Conduct regular audits of payroll data to identify and resolve discrepancies. Serve as the ultimate point of continuous improvement with AI and other methodologies to ensure Scale’s payroll processes are best in class. Ideally you'd have: 5+ years of payroll experience. Strong organizational skills; the ability to get all priority tasks completed by the end of each day. Confidentiality and integrity. Accuracy under pressure and extreme attention to

About The Role Together AI is the AI native cloud, which has been built bottoms up to cater to the demand for the new generation of AI applications and agents. The company has seen tremendous growth with 10X growth year on year and has over a million developers. As we scale the company, we continue to invest heavily in driving brand awareness and consideration. This new role will be the custodian of the Together AI brand. They will lead brand marketing at Together AI, building and executing the strategy to build the brand. The work will include creating a brand narrative, architecting a campaign and executing the campaign across channels to deliver high impact results. This role will report into the head of marketing and will have the opportunity to own and independently build the brand marketing function at one of the most innovative companies at the forefront of AI. Responsibilities Create the brand narrative, grounded in the vision of the company to provide open, abundant AI and appealing to a technical audience. Collaborate with CEO and other leaders Build brand campaign with messaging, design and channel execution that cuts through the noise Drive consistency of brand messaging and look & feel across marketing assets and channels Lead inhouse and vendor design resources Come up with objective goals on how to measure brand awareness and sentiment, and establish a brand tracker Guide and influence thought leadership content that product marketing builds Own the budget for brand awareness and identify top-performing levers to scale Foster a culture to experimentation to try new ideas that can help us scale further at the right ROI Requirements 5+ years leading brand and creative teams Has seen great by building high impact brand campaigns in B2B marketing Strong ownership mindset and ability to build something from ground up Experience managing budgets for brand campaigns Strong analytical skills with a data-driven approach to de

About the AI Security Institute The AI Security Institute is the world's largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. We’re in the heart of the UK government with direct lines to No. 10 (the Prime Minister's office), and we work with frontier developers and governments globally. We’re here because governments are critical for advanced AI going well, and UK AISI is uniquely positioned to mobilise them. With our resources, unique agility and international influence, this is the best place to shape both AI development and government action. The deadline for applying to this role is 18th October 2026, end of day, anywhere on Earth. Team Description Risks from misaligned AI systems are growing increasingly important as AI systems become more capable, autonomous, and integrated into society. Understanding these risks and stress-testing mitigations is crucial to ensuring advanced AI systems are developed and deployed safely and beneficially in the future. The Alignment Red Team is a specialised subteam within AISI's wider Red Team focused on detecting and evaluating misalignment in frontier AI systems. We perform novel research to develop techniques for finding misalignment, and pre- and post-deployment evaluations of frontier AI systems to understand loss-of-control risks associated with models, such as deceptive alignment, research sabotage, and reward-seeking. We share our findings with frontier AI companies and the UK and allied governments, to inform their respective deployments, research, and policy-making. We also work directly with safety teams at frontier labs, sharing our evaluation findings to help improve their model alignment training and monitoring methodology. We have conducted pre-deployment testing with multiple frontier AI companies for propensities related to research sabotage , cheating and unsanctioned cyber-attacks . We previously found t

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! Counsel, Commercial What You’ll Do Snorkel AI is looking for a Counsel, Commercial to join our growing Legal team, reporting to Snorkel’s Associate General Counsel, Commercial. This is a key role across Snorkel’s commercial contracting function, including vendor agreements and customer agreements. You will serve as a trusted legal partner to business teams across the company, drafting, reviewing, and negotiating a wide range of commercial contracts while helping build scalable processes. You’ll work closely with cross-functional stakeholders, combining strong commercial legal skills with the hands-on, execution-oriented approach required in a fast-growing technology company. This hybrid role is based in San Francisco or New York City. Responsibilities Draft, review, and negotiate a broad range of commercial contracts, including vendor and customer agreements, NDAs, MSAs, SOWs, order forms, and other commercial arrangements. Serve as a trusted legal partner to cross-functional teams on commercial contracts. Manage a high volume of contracts and competing priorities, ensuring timely execution and alignment with business objectives. Review and negotiate commercial agreement efficiently and identity when issues require escalation or cross-functional input. Contribute to the development and continuous improvement of contract templates, playbooks, and negotiation guidelines to drive consistency and efficiency across the commercial contracting process. Manage

About the AI Security Institute The AI Security Institute is the world's largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. We’re in the heart of the UK government with direct lines to No. 10 (the Prime Minister's office), and we work with frontier developers and governments globally. We’re here because governments are critical for advanced AI going well, and UK AISI is uniquely positioned to mobilise them. With our resources, unique agility and international influence, this is the best place to shape both AI development and government action. The deadline for applying to this role is 22nd October 2026, end of day, anywhere on Earth. Team Description The Human Influence (HI) team focuses on the ways in which AI can influence human beliefs, decisions, and behaviour. A substantial class of AI risk operates through people. AI systems can persuade people to change their beliefs and to take action; can build trusting relationships with people in order to exploit them; can extract private information from them; and can hold delegated ownership of high-stakes decisions. Our work is highly interdisciplinary, drawing on methods from computational social science, AI safety and security, cognitive and behavioural science, machine learning, and data science. Typical projects include running rigorous human-AI interaction studies and randomised controlled trials, building evaluations and benchmarks that track AI capabilities across model releases, eliciting model capabilities through fine-tuning and self-play, and developing datasets to monitor real-world risk exposure and severity. Role Description We are looking for an Engineering Lead to manage and oversee a growing team of engineers . The team’s work includes: developing new evaluations and technical capability demonstrations , building robust data pipelines, driving world-leading research studies using complex multi-agent setups, finetunin

At Scale, our mission is to develop reliable AI systems for the world's most important decisions. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. Scale Frontier Data is the organization behind the training and evaluation data that frontier labs depend on. We build the systems, tooling, and expert workflows that turn hard human expertise into signals that models can learn from, across reasoning, coding, agentic tool use, and domain expertise. About our Customer Platform team: Our Customer Platform Team plays a pivotal role in integrating our platform with external systems and ensuring seamless, reliable connectivity for both internal users and customers. As the leader of this team, you’ll drive the strategy, architecture, and development of our connectivity solutions, focusing on API integration, distributed systems, and a robust data platform. Your role will be crucial in maintaining and enhancing our platform’s ability to meet the needs of both our internal and external stakeholders. Responsibilities: Own large areas within our product Comfortable working cross functionally, whether that be internal or external customers Build features end-to-end: front-end, back-end, system design, debugging and testing Deliver experiments at a high velocity and level of quality to engage our customers Work across the entire product lifecycle from conceptualization through production Influence the culture, values, and processes of a growing engineering team Inspire and mentor less experienced engineers Collaborating with cross-functional teams to define, design, and ship new product features and experiences. Requirements: At least 7-10 years of relevant experience is preferred Track record of shipping high-quality products and features at scale Desire to work in a very fast-paced environment Abil

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About the Role The Strategic Delivery Lead is the senior operator accountable for turning a pod’s ambition into reliably delivered, high-quality work. This role is hybrid ( 3 days/week in office) in San Francisco, CA or New York City, NY. You will own the performance of a portfolio spanning samples, off-the-shelf datasets, proprietary data products, and bespoke engagements, connecting GTM, Research, Delivery, Product, Engineering, and Expert AI Supply to ensure the right work is prioritized, staffed, and executed. This is a highly cross-functional role: you will lead through influence cross functionally and directly manage a team of strategic project leads (SPLs), bring clarity to complex tradeoffs, and personally intervene when quality, delivery, or customer outcomes are at risk. You will be the pod’s owner for margin performance and operating economics, with a clear view of cost-to-deliver, gross margin, capacity, and the operational choices that drive them. While you will not set pricing, your cost, scope, and delivery inputs will directly inform pricing and commercial decisions. In partnership with Product, Research and Forward Deployed Engineering, you will translate the domain’s strategy and priority bets into an executable roadmap, mobilizing the teams required to bring it to life and building the systems, rhythms, and playbooks that make the model stronger with every launch. What You'll Do Own your pod’s margin performan

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! About the Team The Marketing team at Snorkel AI powers the engine behind our brand, community, and go-to-market success. We are high-ownership operators who lead independently, align cross-functionally, and deliver results. We partner with Research, Product, Sales, and executive leadership to turn complex AI work into stories the market pays attention to. About the Role This is a hands-on, results-measured role. You'll find the angles inside our research, benchmarks, customer work, and executives' points of view and turn it into something that lands. You report to the Senior Director of Integrated Marketing. Responsibilities Own communications. Set and run the comms plan: press, podcasts, awards, and be a facilitator on organic speaking. Own the calendar, the priorities, and the results. Find the story. Mine research, benchmark results (e.g., Open Benchmarks Grants, leaderboards), customer wins, and market moments for angles that balance what Snorkel needs to say with what a reporter, host, or judge finds interesting. Pitch and place. Secure mainstream and tier-1 trade coverage, podcast appearances, and speaking slots in-house (no agency). Write and find the right stories. Collaborate with Research, Product Marketing, and Content to turn insights into a coordinated package: release, byline, data cut, social, podcast talk track. Awards and speaking. Manage awards pipeline/submissions and organic speaking proposal calendar. About You You're a strate

About the Role We’re hiring a Strategic Account Executive (Inference) to own a portfolio of high-priority AI-native and enterprise accounts selling You’ll be responsible for generating pipeline, closing new business, and expanding customers across Together’s platform. You’ll work with technical teams, business leaders, and executives to understand their AI strategy and identify where Together can support production workloads, and also partner closely with Solutions, Engineering, and Research to run POC evaluations and move customers from initial use cases to broader deployments. This role requires experience managing complex sales cycles, technical fluency, and a track record of building pipeline and closing large deals. Responsibilities Close deals and drive revenue: own the full sales cycle for strategic AI-native and enterprise accounts, from prospecting through close and expansion. Manage and prioritize across multiple complex sales cycles simultaneously. Be able to keep scope defined, while also being flexible in dealing with new challenges and priorities. Generate a strong pipeline, identifying high value customer segments/use cases and strategically positioning Together’s offerings. Partner with Solutions Architecture, Research, and Engineering to design solutions/POCs and prove value across inference and post-training engagements. Inform product needs by conveying customer needs, using these insights to enhance Together’s offering and market positioning. Help improve Together’s sales process, positioning, and overall best practices. Requirements 7+ years of B2B technology sales experience, including experience with strategic startup or enterprise accounts. Must have 1-2 years having a track record of closing Inference Opportunities. A track record of closing and expanding strategic, complex deals – especially with deep technical/commercial requirements requiring tailored solutions. Technical and business fluency: ability to work effectively