Customer Success Engineer at Antithesis | London

CoreWeave is The Essential Cloud for AI™, designed by pioneers for pioneers. Our platform empowers innovators to develop and scale AI solutions confidently. Trusted by top AI laboratories, startups, and global corporations, CoreWeave integrates exceptional infrastructure performance with profound technical expertise to catalyze breakthroughs, transforming compute into capability. Established in 2017, CoreWeave became publicly traded on Nasdaq (CRWV) in March 2025. Discover more at www.coreweave.com. We are proud to be a Living Wage accredited Employer. Your Role:The Physical AI Field Engineering team at CoreWeave is dedicated to implementing AI solutions within enterprise engineering organizations, ensuring customers derive tangible value from machine learning applications. This team collaborates across various engineering disciplines to convert complex test and simulation datasets into actionable insights, enabling customers to enhance engineering decisions and accelerate product development.As a Lead Customer Success Engineer, you will act as a technical delivery leader, orchestrating multiple workstreams and ensuring customer engagements yield reliable, high-quality outcomes. By merging technical expertise with project leadership, you will play a pivotal role in conveying complex technical execution into clear customer value.Key Responsibilities:Lead the delivery of AI solutions for key customer engagements.Design and oversee comprehensive technical delivery, translating intricate customer objectives into structured workstreams, milestones, and measurable outcomes.Coordinate execution across product, engineering, and data science teams, serving as the primary technical point of accountability for customer deliverables.Guarantee that complex AI deployments are executed reliably, punctually, and with clear value for customer stakeholders.Who You Are:Over 6 years of experience leading complex technical projects or delivery programs for enterprise engineering clients.Proven track record in designing technical solutions that drive measurable outcomes.

Join Contentsquare as a Customer Success Operations Lead, where you will play a pivotal role in enhancing the customer experience and driving operational excellence. You will collaborate with cross-functional teams to define and execute strategies that ensure our customers achieve their desired outcomes while maximizing the value of our platform.Your responsibilities will include analyzing customer data, developing reports, and implementing processes that improve customer engagement. You will also lead initiatives that promote customer satisfaction and retention, making a significant impact on our overall success.

Role overview Pylon Labs is looking for a Customer Success Manager (EMEA Lead) to join the team in London. This position focuses on building strong client relationships and guiding the customer experience across the EMEA region. The role combines direct client work with leadership responsibilities for the regional customer success team. What you will do Set direction and priorities for customer success in EMEA, leading the regional team. Engage directly with clients to understand their objectives and help them achieve value from Pylon Labs products and services. Create and update strategic account plans that reflect each client’s needs. Organize and lead regular check-ins with key accounts to track satisfaction and resolve issues. Identify upsell and cross-sell opportunities based on client feedback and usage trends. Build lasting partnerships that encourage retention and business growth. Location This role is based in London, UK, and supports clients throughout the EMEA region.

Join Vitesse - the premier treasury and payment partner for the insurance sector!Your next career opportunity is here!Be part of a team that is transforming the payments landscape.About Us:At Vitesse, we transcend the traditional payments platform—we are the reliable financial backbone that connects the global insurance ecosystem. Our solution is specifically designed for insurers, brokers, MGAs, and TPAs, offering a unified platform that optimizes claims funds, facilitates real-time global payments, and provides comprehensive financial control. Our achievements speak volumes: over $20 billion in payments across more than 200 countries, with hundreds of millions returned to insurers’ balance sheets. We are fully licensed in the UK (FCA), Europe (DNB), and New York (NYDFS), supported by a dynamic team of over 260 professionals worldwide. Following a successful $93 million Series C funding round from KKR, we are poised for significant growth across Europe and the US, and we invite you to help us shape the future of insurance solutions.About the Role:The Customer Success Lead will act as a player-manager, guiding the daily operations of the Customer Success team while simultaneously managing a portfolio of strategic customer accounts. This role is pivotal in overseeing the complete post-sale customer journey, enhancing product adoption, promoting value realization, and ensuring strong renewal and expansion results for both individual accounts and the broader team.In this role, you will develop team strategy, operational excellence, and scalable processes by creating and implementing playbooks, integrating performance metrics, and spearheading initiatives that maximize customer success and business impact. You and your team will redefine the platform experience, ensuring measurable value for every customer from onboarding through the entire lifecycle.This position requires extensive cross-functional leadership, closely collaborating with Sales, Solutions, Pre-Sales, and Operations teams to streamline workflows, inform account strategies, and achieve measurable business outcomes. This role merges strategic leadership, operational execution, and direct customer engagement, ensuring both individual accounts and the overall portfolio achieve significant success while enhancing the team’s expertise and abilities.

We are thrilled to present an exciting new role in our Customer Team for a Customer Success Team Lead (also known as Pod Lead). In this pivotal position, you will lead and inspire a talented team of Customer Success Managers (affectionately referred to as Brand Champions), while also overseeing a select portfolio of key accounts, driving both client retention and growth within our local market.Your responsibilities will include cultivating robust relationships, educating clients on leveraging data to meet their brand and marketing objectives, and providing coaching and training to your team on exemplary account management practices. You will serve as a crucial advocate for senior stakeholders across significant accounts, ensuring their needs are met and exceeded.Tracksuit is more than just a platform; we are dedicated to building a dynamic community for brand marketers and ambitious leaders of growth brands. This role is essential to fostering customer satisfaction through relationship management and outstanding customer engagement.

Role Overview Wise is hiring a Global Customer Success Lead for Account Specialists in London. This position shapes how account specialists support customers worldwide, with a focus on improving service quality and satisfaction across different markets. What You Will Do Lead and mentor a team of account specialists serving global customers Equip the team with tools and knowledge to deliver strong support Promote high standards for customer care and satisfaction Apply customer relationship management skills to strengthen team performance Encourage a culture of excellence and continuous improvement within the group What Helps for Success Experience managing or leading customer-facing teams Background in customer relationship management Strong leadership and communication skills Ability to work across multiple markets and cultures

Join Our Team as a Founding Customer Success EngineerAt Tracebit, we empower leading security teams worldwide, including industry giants like Snyk, Docker, and Riot Games, to navigate cybersecurity challenges by 'assuming breach' at scale. Our innovative technology utilizes canaries—decoy tripwires designed to detect and deceive potential attackers within cloud environments.This is an exhilarating time to join our rapidly growing team:We are proudly supported by top-tier investors such as Accel and Tapestry.Our growth trajectory is remarkable—we recently doubled our Annual Recurring Revenue (ARR) last quarter and secured several high-profile clients that we are currently unable to disclose.Recognized as one of the most promising startups in cybersecurity, we’re poised for explosive growth, receiving outstanding market feedback.Featured on prestigious startup lists like Creandum's Euro Seed top 50 list and Sifted's 2025 London Startups To Watch.Our CTO’s groundbreaking research recently resolved a critical security flaw in Google's Gemini CLI.Our team has expanded from 2 to 18 members in just 18 months, with ambitious plans to triple our workforce this year.As our first Customer Success Engineer, your mission will be to ensure our clients derive maximum value from our offerings post-sale, establishing the technical foundation for exceptional customer experiences.

At Algolia, we take pride in being a trailblazer and market leader in AI Search, enabling over 17,000 businesses to provide ultra-fast, predictive search and browsing experiences at an internet scale. Each week, we handle more than 30 billion search requests — surpassing the combined totals of Microsoft Bing, Yahoo, Baidu, Yandex, and DuckDuckGo by fourfold.In 2021, we successfully raised $150 million in Series D funding, significantly increasing our valuation to $2.25 billion. This solid foundation allows us to continually invest in our leading platform and serve remarkable customers such as Under Armour, PetSmart, Stripe, Gymshark, and Walgreens.As a Customer Success Engineer at Algolia, you will be instrumental in ensuring our customers successfully adopt, implement, and scale our search and discovery platform. You will collaborate closely with clients to provide top-notch technical onboarding, solution design, best practices, and hands-on implementation support.This position is perfect for someone who possesses a deep curiosity, enjoys tackling complex technical challenges, and is excited by the prospect of learning and applying innovative technologies, including modern development patterns, cloud infrastructure, and cutting-edge AI capabilities. You will work across diverse customer architectures and use cases, assisting teams in designing high-performance, scalable solutions while promoting technical excellence.You will also support our Professional and Expert Foundation offerings, serving as the technical owner for your assigned accounts and ensuring seamless delivery through clear communication, detailed documentation, and thoughtful alignment with stakeholders.Success in this role requires a proactive, reliable, and collaborative approach, balancing customer-facing tasks with internal best practices such as accurate time tracking, effective documentation, and ongoing knowledge sharing.If you are enthusiastic about shaping customer outcomes, exploring new tools and technologies, and working within a team that values craftsmanship, curiosity, and continuous learning, we would love to connect with you.

Join us in revolutionizing travel!Travel is more than just a journey; it connects us with loved ones, opens up new adventures, and creates unforgettable experiences. Yet, the frustrations of travel can often overshadow the excitement. Over 4 billion airline passengers depend on outdated technology that fails to meet the expectations of today's connected traveler.At Duffel, we are on a transformative mission to modernize the travel infrastructure. We aim to simplify complex systems and develop innovative tools that ensure a seamless travel experience for everyone.As part of the Y Combinator S18 cohort, we are proudly backed by notable investors including Benchmark, Blossom, Index Ventures, and Kima Ventures, who have played a pivotal role in the growth of some of the world’s leading companies.Position OverviewIf you are passionate about customer success and excel at solving intricate technical challenges, this is the perfect opportunity for you. Duffel is seeking a Customer Success Engineer (CSE) to deliver expert technical support to our key clients. In this role, you'll assist customers by answering their inquiries and recommending effective ways to leverage our APIs to create outstanding travel experiences. Furthermore, you will work closely with various teams across Duffel, including Product, Engineering, Finance, and Travel Operations, to guarantee an exceptional customer journey with our products and services.

TL;DRAt Tilt, we are revolutionizing the world of live commerce, placing our sellers at the core of our mission. We are on the lookout for a Seller Success Lead, a dedicated individual who is willing to dive into the details—whether it’s managing a Zendesk queue or transforming every ticket into actionable insights.About Tilt Tilt's vision is straightforward: Make Commerce Alive.The traditional e-commerce landscape, dominated by plain store website builders and impersonal marketplaces, is rapidly becoming outdated. It was designed for transactional experiences, not for the vibrant community-driven merchants of today.In the UK alone, millions of diverse shoppers—from sneaker enthusiasts to nostalgic Y2K fans, collectors, and parents—are tapping into the potential of Tilt. Our platform has empowered sellers to achieve over £1M in earnings, with many exceeding the UK median income.And this is just the beginning.Your Mission We seek our inaugural Seller Success Lead—a person who understands that exceptional seller support is not merely a cost center but a crucial growth engine. The success and retention of Tilt's sellers hinge on our ability to respond swiftly and intelligently to their challenges.This role blends operational responsibilities with analytical insights. You will actively resolve tickets and also step back to investigate the root causes of these issues to implement long-lasting solutions.What You'll Do - Oversee the comprehensive seller success journey across all Tilt markets (GB, ES, IT, PL), from initial contact to resolution.- Take a hands-on approach in Zendesk: triaging, resolving, and responding to seller inquiries, especially in the early stages before building out a team or creating a playbook.- Establish the seller success infrastructure from the ground up: including macros, escalation pathways, SLA frameworks, categorization systems, and resolution processes.- Analyze ticket data to extract product and operational insights—identifying recurring issues, communicating them to product and engineering teams, and ensuring resolutions are implemented to prevent recurrence.- Develop and maintain a seller-facing knowledge base and self-service resources (FAQs, help center articles, how-to guides) aimed at reducing incoming ticket volume over time.- Create reporting tools and dashboards to provide leadership with visibility into ticket volume, resolution times, CSAT, and prevalent seller challenges by market.

CoreWeave is the quintessential cloud solution for AI™, designed by innovators for innovators. Serving a diverse clientele, including leading AI labs, startups, and global enterprises, CoreWeave provides a powerful platform enriched with state-of-the-art technology, tools, and expert teams to empower innovators in building and scaling AI solutions with assurance. Since our inception in 2017, we have achieved the status of a publicly traded company (Nasdaq: CRWV) in March 2025. Discover more at www.coreweave.com. We take pride in being a Living Wage accredited employer. What You’ll Do:As a member of the Physical AI Field Engineering team at CoreWeave, you will collaborate directly with engineering organizations to implement AI solutions that revolutionize the analysis of testing, simulation, and manufacturing data. You will engage closely with customers, applying machine learning techniques to complex physics challenges, enabling them to derive insights from extensive engineering datasets and enhance decision-making throughout their development processes.The Senior Customer Success Engineer will work in tandem with Forward Deployed Data Scientists and other technical experts to deliver impactful AI applications within customer environments. By integrating engineering domain knowledge with practical machine learning skills, you will ensure that AI solutions yield tangible benefits within production engineering workflows.About the Role:CoreWeave is on the lookout for a Senior Customer Success Engineer to facilitate the technical delivery of AI solutions tailored for engineering teams.In this capacity, you will collaborate closely with delivery leads and data scientists to execute customer solutions using engineering datasets, including simulation, testing, and manufacturing data.You will leverage machine learning principles in real-world engineering workflows while guiding customers in understanding and embracing AI-driven problem-solving methodologies.Your contributions will be pivotal in the successful deployment and integration of AI solutions across various customer projects.

Join Xero as the Head of Customer Success, where you will lead our dedicated team to enhance customer satisfaction and drive engagement. In this strategic role, you will develop and implement robust customer success initiatives, ensuring our clients achieve their desired outcomes. Your leadership will inspire a culture of excellence and continuous improvement, fostering strong relationships with our valued customers.

About MixpanelMixpanel is an innovative event analytics platform designed for builders who require immediate insights from their data—no SQL expertise needed. By enabling everyone in the organization to visualize and learn from the effects of their contributions on product, marketing, and company revenue metrics, we empower teams to make informed decisions.With over 9,000 paying clients, including renowned companies like Netflix, Pinterest, Sweetgreen, and Samsara, Mixpanel helps organizations understand their customers and track progress effectively. We are dedicated to offering the most comprehensive and trustworthy analytics platform that is accessible and relied upon by all.About the Customer Success TeamThe Customer Success & Solutions Engineering teams at Mixpanel are dedicated analytics consultants who integrate with our enterprise clients to achieve their business objectives. We engage with prospects and clients across the customer journey to comprehend what adds value, acting as the technical partner to our Sales team to fulfill that value. You will collaborate closely with Account Executives, Account Managers, Product, Engineering, and Support teams to successfully implement self-serve analytics in our customers' organizations, manage change effectively, and execute technical projects and services that enhance customer satisfaction and drive ROI on their Mixpanel investment.About the RoleAs a Customer Success Architect, you will engage with customers at every stage of their journey to discern what drives value, from pre-sales proof of concepts to illustrate rapid time to value, to post-sales onboarding and implementation, ensuring customers are set for sustainable success with scalable implementations and best practices in data governance. Throughout the customer lifecycle, you will explore how analytics can propel business value and advise them on optimizing the Mixpanel experience, including managing change during the rollout, defining and achieving ROI, and pinpointing areas for enhancement in their current analytics usage. For large enterprise clients, following onboarding, you will also work with Account Managers to foster data trust and product adoption among over 100 end-user teams through a structured change management rollout approach.

Role Overview impact is hiring a Customer Success Manager in London. This role focuses on helping clients reach their goals and get the most value from our solutions. Building strong relationships and supporting customer satisfaction are central to this position. What You Will Do Support clients as they use our products and services Work closely with customers to understand their needs and objectives Strengthen long-term relationships to encourage continued success Help clients resolve issues and make the most of our offerings What We Look For Proactive approach to client support Strong focus on customer satisfaction Ability to build and maintain trust with clients

At NiCE, we embrace challenges and push beyond our limits. As ambitious game changers, we strive for excellence in every endeavor. If you share our passion for innovation and success, we offer a career opportunity that will ignite your potential.What Does the Role Entail?As a Customer Success Manager, you will take charge of fostering enduring relationships with our key NiCE CX customers post-purchase and throughout their product implementation journey. You will be their trusted advocate, ensuring they realize the full value of our solutions.Your engagement with customers will begin before they launch our contact center platform, and you will remain closely involved to guarantee adoption, measurable ROI, and long-term success.Our team comprises experienced customer success professionals who are dedicated to surpassing customer expectations. You will manage multiple high-touch, complex enterprise accounts, driving the adoption of AI-powered capabilities and enhancing overall customer experience.In partnership with customers, you will guide them in utilizing NiCE technology effectively, expanding usage, and nurturing long-term, loyal relationships. Your assigned accounts may include those with premium service packages, necessitating high levels of engagement and strategic guidance.Engagements with customers will occur through various channels including phone, email, chat, and video conferencing, with in-person visits as necessary. Travel to customer sites for value reviews and executive meetings will be expected.Collaboration is key; you will work independently as well as alongside Sales, Technical Support, Professional Services, Product Management, Engineering, and other teams to achieve the highest levels of customer satisfaction and success.Your Impact:Serve as the primary point of ownership for customer success across assigned accounts, coordinating NiCE CX resources to deliver outstanding outcomes.Develop and nurture strong, productive relationships with customers, holding regular success reviews to align with their contact center operations and business goals.

Join Harvey as the Head of Customer Success for the EMEA region, where you will lead our efforts in delivering exceptional customer experiences. You will be responsible for developing and implementing customer success strategies that foster long-term relationships with our clients, ensuring they achieve maximum value from our solutions.This role will involve collaboration with cross-functional teams to drive customer engagement and retention, while also identifying opportunities for growth within existing accounts.

Join a Transformative CompanyAt Palantir, we strive to revolutionize decision-making and operational efficiency through our cutting-edge software solutions. Our platforms empower organizations to harness data effectively, enabling them to develop life-saving pharmaceuticals, predict supply chain challenges, locate missing persons, and much more.Your RoleAs a Forward Deployed Enablement Engineer, you will be an integral part of centralized customer success teams, dedicated to maximizing the impact of our deployed products and workflows for a diverse clientele, ranging from agile startups to expansive enterprises. This role seamlessly blends high-level support with the creation of innovative tools and infrastructure aimed at enhancing customer enablement on a large scale. You will be a tenacious and resourceful problem-solver, adept at collaborating and working independently to tackle complex technical challenges, while also engaging directly with customers to diagnose and resolve their issues.Our Customer Success team is committed to helping clients leverage Palantir’s Foundry & AIP Platforms to drive their most critical business processes. In this position, you will apply your analytical skills, creativity, and technical expertise to support customer development teams, ensuring they can effectively construct and refine their workflows. This role offers a unique opportunity to gain valuable insights and contribute to some of the world’s most impactful industries and organizations.Every day at Palantir presents new challenges and opportunities for innovation. As we continuously evolve to meet customer demands, you will be encouraged to contribute your creativity and problem-solving skills to enhance our internal processes and tools, ultimately delivering greater business value to our customers with improved efficiency.At Palantir, we believe in empowering each employee to leverage their unique strengths. There is no singular approach to engineering within our company; this role is intentionally broad to allow individuals to explore their passions and grow in ways that inspire them.

About JuniorAt Junior, we are revolutionizing the investment research landscape with state-of-the-art LLM-powered tools designed specifically for private market investors. Our clientele includes some of the world's leading private equity and consulting firms, collectively managing billions in annual investments. As a profitable and bootstrapped organization, we take pride in our dynamic team of 24 based in both London and NYC.Discover more about our mission and values here. Role DescriptionAs a pivotal member of our Customer Success team, you will play a crucial role in ensuring our clients' success. We seek individuals who possess genuine empathy for the challenges faced by consultants and investors during due diligence work, and who can effectively demonstrate how Junior can enhance their efficiency and impact.Your responsibilities will include managing global deployments involving thousands of users, acting as the Voice of the Customer, and collaborating closely with our product team to eliminate pain points from our customers' workflows.In this role, you will:Develop and maintain robust relationships with clients, including key decision-makers at large-cap funds and consultancies, serving as their primary contact and trusted advisor throughout the onboarding and feedback processes.Oversee the execution of large-scale AI deployments for thousands of users.Transform customer feedback into actionable insights for product development, guiding our team on essential features to meet client demands.Co-create and deliver tailored training programs alongside our customers.Utilize data-driven strategies to enhance customer engagement, satisfaction, and retention.Advance into a managerial position as our Customer Success team expands.Contribute to the evolution of our team structure and the overall company culture. About YouWe are in search of a seasoned Customer Success Lead who:Has demonstrable experience in customer success roles, especially within the investment or consulting sectors.Is skilled in relationship management, with a track record of engaging effectively with senior stakeholders.Possesses strong analytical skills and the ability to leverage data for customer insights.Can effectively communicate and translate customer needs into product enhancements.Is passionate about driving user satisfaction and retention.

Join anima as a Customer Success Manager, where you will play a pivotal role in ensuring our clients achieve their goals and maximize their value from our services. You will be the primary point of contact for our customers, guiding them through the onboarding process and providing ongoing support to enhance their experience with our innovative solutions.Your expertise will help identify customer needs and promote our solutions effectively. You will collaborate closely with various teams to ensure a seamless experience for our clients.