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Machine Learning Engineer, Platform London, UK Scale GP (Scale Generative AI Platform) is an enterprise-grade Generative AI platform that provides APIs for knowledge retrieval, inference, evaluation, and agentic workflows. We are looking for a Machine Learning Engineer to join our team and build the retrieval and knowledge representation systems at the heart of the platform. You will own ML components end to end — from research and prototyping through to production deployment — working across knowledge bases, vector stores, RAG pipelines, and context engines to power agents that deliver real impact for enterprise customers. You will: - Own large areas of platform end to end, driving components from design through to production deployment. - Work on knowledge representation systems, including ontologies and knowledge graphs, to support structured reasoning over enterprise data. - Design and implement RAG pipelines, including chunking, embedding, indexing, retrieval, and reranking. - Build and maintain integrations between retrieval and ML components and diverse enterprise data sources, vector databases, APIs, and services. - Develop context retrieval systems that balance recall, precision, latency, and cost. - Build evaluation frameworks, datasets, and metrics to measure retrieval quality, context relevance, and end to end agent performance. - Build reliable backend services and data pipelines that support ML and LLM components in production. - Deliver experiments and new capabilities quickly, maintaining high quality and tight feedback loops with customers. - Collaborate across product, ML, and infrastructure teams to shape the direction of the platform. Ideally you'd have: - 5+ years of experience building and deploying machine learning or AI systems for real-world, production use cases. - Strong engineering fundamentals, supported by a Master’s or PhD degree in Computer Science, Machine Learning, AI, or equivalent practical experience.. - A deep, hands-on understanding of retrieval systems, RAG, embeddings, vector indexing, and knowledge representation. - Experience with knowledge representation, semantic search, or agentic systems. - Proven proficiency in Python, including writing production-quality, testable, and maintainable code. - Experience scaling or shipping products at high-growth startups. - The ability to operate in ambiguous problem spaces, balancing research-driven approaches with pragmatic product constraints. - Strong communication skills and comfort working in customer-facing or cross-functional environments. PLEASE NOTE: Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants. About Us: 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. We work closely with industry leaders like Meta, Ernst & Young, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications. We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status. We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at accommodations@scale.com. Please see the United States Department of Labor's Know Your Rights poster for additional information. We comply with the United States Department of Labor's Pay Transparency provision . PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants’ needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.

ABOUT US At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world. Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater. ROLE OVERVIEW LangChain is looking for a highly operational and program-oriented GTM onboarding and enablement lead to build and scale a world-class onboarding and ramp experience across our growing Go-To-Market organization. This role will own onboarding strategy and execution across Sales, SDR, Deployed Engineer (DE), and Customer Engineering (CE) teams. The ideal candidate combines strong program management, enablement, onboarding, and cross-functional coordination skills with the ability to build structured, hands-on learning experiences in a fast-moving technical environment. This is a highly cross-functional role partnering closely with Sales Leadership, Product, PMM, DE, CE, Revenue Operations, and Enablement leadership to ensure new hires ramp quickly, build strong product fluency, and become customer-ready with confidence. WHAT YOU’LL DO GTM ONBOARDING PROGRAMS - Own end-to-end onboarding and ramp programs across Sales, SDR, DE, and CE organizations - Build, manage, facilitate, and continuously improve in-person and virtual GTM Bootcamps - Redesign onboarding experiences into more hands-on, role-based learning programs with practical exercises, certifications, workshops, and customer-facing simulations - Develop scalable onboarding frameworks that support rapid GTM team growth globally LMS & LEARNING INFRASTRUCTURE - Build and maintain scalable onboarding learning paths within WorkRamp for Commercial, Enterprise, SDR, DE, and CE functions - Create structured onboarding journeys, certification programs, learning milestones, and reinforcement programs - Partner with managers and leadership to operationalize onboarding workflows, progress tracking, and onboarding accountability - Continuously improve onboarding content organization, usability, and learner experience PRODUCT & GTM FLUENCY - Develop role-based product fluency programs focused on practical GTM application, customer conversations, POV readiness, discovery, and real-world sales execution - Partner closely with Product, PMM, DE, and CE teams to ensure onboarding content reflects the latest product capabilities, customer lifecycle, GTM motion, and adoption workflows - Translate complex technical concepts into practical, role-appropriate onboarding experiences for different GTM audiences RAMP READINESS & CERTIFICATION - Create onboarding certifications and readiness milestones tied to observable skills, role expectations, and ramp progression - Build onboarding manager toolkits including: - 30/60/90 day plans - coaching checkpoints - onboarding inspection frameworks - readiness scorecards - Establish clear definitions of onboarding success and ramp readiness across GTM functions PROGRAM OPERATIONS & MEASUREMENT - Operationalize onboarding measurement and reporting including: - ramp progress - certification completion - onboarding feedback - onboarding engagement - time-to-productivity metrics - Identify onboarding gaps and continuously improve programs based on learner feedback, manager feedback, and business priorities - Standardize onboarding documentation, assets, and enablement resources across GTM teams WHAT WE’RE LOOKING FOR - 5+ years of experience in Sales Enablement, Revenue Enablement, GTM Onboarding, Learning & Development, or related GTM program roles - Experience building and scaling onboarding programs in high-growth SaaS or technical platform companies - Strong experience with LMS platforms, preferably WorkRamp - Experience designing structured onboarding paths, certifications, and learning programs - Strong facilitation and program management skills - Ability to work cross-functionally across Sales, Product, PMM, Customer Success, and technical teams - Strong written and verbal communication skills - Highly organized with strong operational execution and project management capabilities Compensation: $160,000-185,000 USD Compensation Philosophy: We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations. BENEFITS Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.

ABOUT US At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world. Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater. ABOUT THE ROLE: As the Financial Controller, you'll lead our accounting and financial reporting functions end-to-end. You'll be the person who makes sure our books are clean, our close process runs on time, and our leadership team has the numbers they need to make good decisions. This role reports to the Head of Finance and works closely with our Finance, Legal, People and Operations teams. This is an in-office role based in our San Francisco or New York office. WHAT YOU’LL DO: - Lead the monthly, quarterly, and annual close process — on time and with accuracy - Lead our first audit and manage relationships with auditors and tax advisors - Oversee accounts payable, accounts receivable, payroll, and equity administration - Build and maintain internal controls and ensure compliance with relevant regulations - Partner with Finance on budgeting, forecasting, and variance analysis - Drive improvements to our financial systems and processes as we scale WHAT YOU’LL BRING: - 10+ years of progressive accounting and finance experience, with at least 2 years in a Controller role - CPA required - Deep knowledge of GAAP and financial reporting standards - Experience in high-growth SaaS or technology companies — you understand what "scaling" actually means for a finance function - Strong working knowledge of accounting systems - Track record of building or improving close processes and internal controls - Comfortable working across functions and communicating financial concepts to non-finance stakeholders - Bonus: experience supporting a Series B–D company through an audit or preparing for one - You’ve worked in fast-moving teams where scope and priorities evolve - You have start-up DNA: You thrive in fast-paced, ambiguous environments etc. - You exemplify our operating principles https://www.langchain.com/careers. - You are motivated to build something great: you hold a high bar for quality, craft, and impact - You embrace hot takes: you share informed opinions, challenge the status quo, and engage in constructive debate - You operate with maximum agency: you take ownership, move work forward independently, and help others unblock - You run to the roar: you lean into hard problems, ambiguity, and fast-moving challenges COMPENSATION: Annual salary range: $200,000-225,000 USD Compensation Philosophy: We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations. BENEFITS Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.

ABOUT ELEVENLABS ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: - ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. - ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. - ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. HOW WE WORK - High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. - Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. - AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. - Excellence everywhere: Everything we do should match the quality of our AI models. - Global team: We prioritize your talent, not your location. WHAT WE OFFER - Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. - Growth paths: Joining ElevenLabs means joining a dynamic team with countless opportunities to drive impact - beyond your immediate role and responsibilities. - Learning & development: ElevenLabs proactively supports professional development through an annual discretionary stipend. - Social travel: We also provide an annual discretionary stipend to meet up with colleagues each year, however you choose. - Annual company offsite: Each year, we bring the entire team together in a new location - past offsites have included Croatia and Italy. - Co-working: If you’re not located near one of our main hubs, we offer a monthly co-working stipend. ABOUT THE ROLE We're looking for an experienced AI Safety Engineer to drive the deployment and operationalization of automated moderation and guardrail systems that protect our platform and users across a multimodal space. You'll work alongside a team of ML and full stack engineers to build production-grade safety infrastructure from the ground up. This is a product ownership role where you'll be responsible for end-to-end technical execution of our safety systems, from architecture to deployment andto monitoring. You'll bridge the gap between ML research and production-grade systems, ensuring our safety infrastructure is robust, observable, and scalable. What you'll do: - Design and build scalable backend infrastructure for content moderation, abuse detection and agents guardrails, deploying AI/ML models into production systems - Architect robust APIs, data pipelines, and service architectures supporting real-time and batch moderation workflows - Implement comprehensive monitoring, alerting, and observability systems; establish SLIs, SLOs, and performance benchmarks - Partner with ML engineers to translate research models into production-ready systems and integrate them across our product suite - Drive technical decisions and contribute vision to the safety roadmap on how the next generation of platform guardrails should be built for scale and precision. REQUIREMENTS - 6+ years of backend software engineering experience building production systems at scale - Strong production backend experience: distributed systems, APIs, data pipelines, and Python expertise (asynchronous Python, backend frameworks) - Infrastructure & DevOps proficiency: cloud platforms (AWS/GCP), containerization (Docker/K8s), CI/CD pipelines - Observability mindset with experience in monitoring tools (Prometheus, Grafana) and building observable systems - Track record of taking products or systems from 0→1 with measurable impact, including deploying or working alongside ML/AI systems in production Bonus: - Trust & Safety, Content Moderation, or Integrity engineering experience - MLOps experience: deployment, monitoring, and versioning of ML models - Experience with SQL, data analysis tools, real-time streaming systems (Kafka, Redis), or event-driven architectures - Familiarity with React or modern frontend frameworks LOCATION This role is remote and can be executed globally. If you prefer, you can work from our offices in London, New York, San Francisco, and Warsaw. #LI-remote

ABOUT ELEVENLABS ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: - ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. - ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. - ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. HOW WE WORK - High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. - Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. - AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. - Excellence everywhere: Everything we do should match the quality of our AI models. - Global team: We prioritize your talent, not your location. WHAT WE OFFER - Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. - Growth paths: Joining ElevenLabs means joining a dynamic team with countless opportunities to drive impact - beyond your immediate role and responsibilities. - Learning & development: ElevenLabs proactively supports professional development through an annual discretionary stipend. - Social travel: We also provide an annual discretionary stipend to meet up with colleagues each year, however you choose. - Annual company offsite: Each year, we bring the entire team together in a new location - past offsites have included Croatia and Italy. - Co-working: If you’re not located near one of our main hubs, we offer a monthly co-working stipend. ABOUT THE ROLE ElevenLabs operates a complex and fast-evolving revenue model – enterprise contracts, self-serve API subscriptions, usage-based billing, and expanding international markets. As our Revenue Accountant Lead, you will own end-to-end revenue recognition under ASC 606, lead the revenue close, and serve as the internal expert on how new products, pricing structures, and commercial arrangements hit the income statement. You will partner closely with Sales, Legal, Billing Operations, Engineering, and FP&A to review contracts, assess performance obligations, and ensure revenue is recognised accurately and on time. This is a senior, high-ownership role in a lean Finance team – the right person will manage the technical standards, coordinate external audit, and build scalable processes as we move toward IPO readiness. REQUIREMENTS - Deep expertise in ASC 606, including multi-element arrangements, SSP evaluation, variable consideration, contract modifications, and principal vs. agent analysis - Experience leading the revenue close: deferred revenue management, unbilled receivables, journal entry review, and month-end flux analysis - Track record of partnering with Sales and Legal on contract review and revenue impact assessments - Experience operating in a pre-IPO or public company environment, with direct exposure to external audit, controls build-out, and revenue accounting documentation - CPA, ACA, or ACCA qualification (active); Big 4 or public accounting background a strong plus - Strong systems proficiency; Stripe, HubiFi or a comparable revenue recognition tool preferred Bonus: - Experience with consumption/usage-based and subscription billing models - Familiarity with ASC 326 (CECL) and AR accounting in a high-volume SaaS context - Multi-entity or international revenue accounting background LOCATION This role is remote-first and open to candidates physically based on the East Coast of the United States (ET timezone). We are not able to consider applicants based in other US timezones at this time. If you prefer, you can work from our office in New York. #LI-Remote

ABOUT ELEVENLABS ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $11B - multiples of 11, always. We have expanded from voice into three main platforms: - ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale. - ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages. - ElevenAPI gives developers access to our leading AI audio foundational models. Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you. HOW WE WORK - High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy. - Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you. - AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations. - Excellence everywhere: Everything we do should match the quality of our AI models. - Global team: We prioritize your talent, not your location. WHAT WE OFFER - Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible. - Growth paths: Joining ElevenLabs means joining a dynamic team with countless opportunities to drive impact - beyond your immediate role and responsibilities. - Learning & development: ElevenLabs proactively supports professional development through an annual discretionary stipend. - Social travel: We also provide an annual discretionary stipend to meet up with colleagues each year, however you choose. - Annual company offsite: Each year, we bring the entire team together in a new location - past offsites have included Croatia and Italy. - Co-working: If you’re not located near one of our main hubs, we offer a monthly co-working stipend. ABOUT THE ROLE The Design team at ElevenLabs is crafting experiences for the next generation of audio workflows using generative AI. You’ll work in entirely new and unexplored problem spaces, like crafting experiences around voice cloning that will allow people to generate content in realistic voices, languages, and accents, to create universally accessible content, safely. You’ll reimagine how creative teams craft sounds just by describing them, and how they bring it all together in one AI-first generative audio platform. The work here has the potential to revolutionize workflows for creators to media and entertainment, publishing giants, to defining entirely new spaces like conversational AI companies. You will work with our Engineering and AI Research teams to successfully communicate, evolve, and execute a strong product design standard that showcases ElevenLabs as an innovator in the generative AI audio space. You are a crucial component of our company’s growth and product launches through your contributions to short and long-term strategic direction, creating and maintaining high visual standards and a strong focus on user needs. You have an owner’s mentality, taking pride in your work and in your team’s work, and view what you do as a part-owner and builder of ElevenLabs. You'll work closely with Nev Flynn https://nevflynn.com/, Austin Malerba https://x.com/austin_malerba?lang=en, and collaborate closely with our frontend engineers to achieve outcomes. If you love the intersection of design and engineering, as well as having an interest in the business side this could be a great fit. You might be a designer turned engineer, an engineer turned designer, or an ex-founder. WHAT YOU BRING We do not require any formal experience, certifications, or degrees. Instead, we are seeking enthusiastic product designers who can showcase solving impressively hard problems with artifacts such as past projects and designs. Even directly sharing a rough figma of your work is a great way to show us your craft! We do require: - Creative thinking toward establishing and executing on the vision for team initiatives. Challenge the status quo, push innovation and inspire people toward a unified outcome. - Efficiently execute to ship products that deliver impact for our business and customers. - Partner with the leadership team to successfully communicate concisely across the team and influence product and design outcomes. - Will work across the entire business stack and make an impact at different stages of the product: building vision & strategy, ensuring all the loose ends are tied up when executing, and making sure the operational components to support onboarding are in place, not just the product - It is preferred that you can get in the weeds with your engineering partners and make sense of technical constraints, while still pushing forward and maintaining a high design bar and level of execution - Work closely with stakeholders across the organization, partnering with Engineering, Customer Support, and Growth to define new products and features and launch them LOCATION This role is remote and can be executed globally. If you prefer, you can work from our offices in London, New York, San Francisco, and Warsaw. #LI-remote