Senior Account Executive at Antithesis | London, UK

About AntithesisAt Antithesis, we are revolutionizing the software testing industry with our innovative approach. Our platform harnesses cutting-edge fuzzing and property-based testing techniques to uncover deep-rooted bugs in customer software, exploring systems in ways that conventional testing methods simply cannot achieve.In the nascent stages of transforming a powerful core technology into a market-ready product, we are defining the intricate aspects of our offering, operational model, and customer engagement processes. This role thrives in a high-ambiguity, 0→1 environment where your product insights will be crucial.About the RoleWe are seeking experienced Product Managers to take ownership of critical components within the Antithesis product suite.This position transcends mere execution within a pre-established framework. You will engage in a dynamic, technical landscape where many decisions will be pioneering. Your role will involve defining product segments, shaping workflows, influencing prioritization, establishing success metrics, and collaborating intimately with engineering and design teams to create robust foundations.You will work alongside engineers in a technically demanding environment where challenges are intricate and trade-offs significant. Your partnership with the engineering team will be essential in determining what we create, the rationale behind it, and the criteria for measuring our success.This position is tailored for individuals eager to build rather than optimize existing processes or mature products.Areas of FocusWe are looking for a product manager based in London to oversee the Property-Based Testing (PBT) and Specification domain. This encompasses, but is not limited to:How customers present their software for Antithesis to test.How customers specify expected and unexpected behaviors of their software.How customers communicate issues that they do or do not prioritize.How customers provide insights on the most compelling areas of their code for exploration.Management of the Antithesis SDK.You will collaborate closely with the Antithesis PBT technical team in our London office, which includes world-renowned experts in property-based testing.What You’ll DoFacilitate discovery sessions with customers to understand their needs.Define and prioritize product initiatives within your domain.Collaborate with engineering to shape the product vision.

About AntithesisAt Antithesis, we are transforming the landscape of modern distributed systems testing and deployment. Our innovative platform is trusted by engineering teams that prioritize unwavering reliability, scalable performance, and intricate technical insights. We don’t just ensure system correctness and reliability; we exist because developers need a superior solution. If you’ve faced the frustration of production outages, endured challenging on-call weeks, or experienced release delays due to critical bugs, you’ll resonate with our mission. If you're driven by a passion for developer-centric products, system resilience, and accuracy, we want to hear from you.About the RoleWe seek an innovative thinker who thrives in challenging environments and isn’t afraid to disrupt the norm. As a Solutions Engineer, you will deploy the powerful tools and technologies from the Antithesis platform to identify bugs and challenge our customers’ software. You will effectively communicate and persuade potential customers about the revolutionary approach to software testing and reliability that Antithesis embodies.What You'll DoLead Proof-of-Concept (POC) initiatives to showcase the value of Antithesis products to prospective customers.Engage in onboarding processes for new customers.Provide technical support to the sales team through qualifications and consultations.Facilitate workshops for customers focusing on Property-based Testing (PBT) and other relevant topics.Identify bugs and evaluate open-source software.Establish thought leadership in testing complex systems.Create, maintain, and present product demonstrations.Guide customers and prospects in utilizing the Antithesis platform and its testing methodologies.Who You AreTechnically adept and curious about technology trends.Eager for new challenges and opportunities.Keen to learn and adopt emerging technologies.Resilient under tight deadlines and high-pressure scenarios.Excellent communicator, both in writing and verbally.Collaborative team player, able to work effectively with a small, skilled team.Professional yet adaptable, comfortable in a fast-paced environment.

About AntithesisAt Antithesis, we are on a bold mission to transform the landscape of testing and releasing modern distributed systems. Trusted by engineering teams worldwide, our platform guarantees unparalleled reliability, robust performance, and comprehensive technical insights. We understand the challenges developers face, from production outages to release delays caused by elusive bugs. If you share our passion for creating developer-centric solutions that enhance system resilience and accuracy, we invite you to join us.About the RoleAs a Customer Success Engineer (CSE), your role is pivotal in ensuring our customers achieve success. You will dive deep into understanding their complex software systems and pressing business requirements, leveraging our state-of-the-art platform to facilitate rigorous testing of their mission-critical applications. You will collaborate with engineers from innovative companies, identifying bugs before they reach users and contributing to their success.What You’ll DoCustomer Success Engineers must effectively grasp customers’ business goals and technological landscapes to deliver value throughout their journey—from onboarding to customization delivery and presenting impactful value propositions to customer leadership. Your responsibilities will also include identifying product feature gaps, uncovering new requirements, brainstorming novel application domains and product areas, and educating the tech industry on advanced testing techniques for large-scale applications.Every day will bring unique challenges—one day you might be onsite with a customer, resolving a critical bug and presenting findings to their entire team; the next, you’ll collaborate with peers in the office on pioneering testing techniques or enhance your skills by exploring the latest open-source technologies.

Role overview Antithesis is seeking a Senior or Staff Engineer in London, UK to focus on Hegel. The team values creative problem-solving and technical depth, with engineers regularly exchanging ideas and expertise to drive projects forward. Collaboration is a core part of the work culture. What you will do Tackle complex engineering challenges involving Hegel Support both new and ongoing projects that influence the team’s direction Work closely with colleagues to develop practical solutions Requirements Previous experience at a senior or staff engineering level Keen interest in working with Hegel Enjoys sharing knowledge and collaborating with others Motivated to try new technical approaches Location This role is based in London, UK.

About the Role Antithesis is hiring an Engineering Manager in London, UK. This leadership role focuses on guiding engineering projects from planning to delivery. The manager will support a skilled team of engineers, encourage collaboration, and maintain high technical standards. What You Will Do Oversee engineering projects and ensure timely progress Lead and mentor engineers, helping them grow in their roles Promote a collaborative and inclusive team culture Champion technical quality across all projects

Role overview Three UK is seeking a Regulatory Manager to join the team in London. The position centers on ensuring the company meets all relevant regulatory obligations and helps the business stay aligned with current compliance standards. Key responsibilities Oversee compliance activities throughout the organization Maintain communication with regulatory authorities when required Create and apply policies that support regulatory compliance Promote sound business practices by implementing effective compliance measures Location This role is based in London.

Join Three UK as a Regulatory Manager, where you will play a vital role in shaping our regulatory strategies and ensuring compliance with industry standards. You will collaborate with various stakeholders to develop and implement policies that support our business objectives while adhering to regulatory requirements.

Join Three UK as a Senior Counsel specializing in Regulatory Implementation, where you will play a pivotal role in navigating the complexities of telecommunications regulations. Your expertise will ensure compliance and drive strategic initiatives in regulatory matters.

Three UK seeks a Partnerships Executive in London to help develop and maintain key relationships with partners. The position supports the company’s goal of providing reliable connectivity and a positive customer experience. Role overview This role centers on building and nurturing strategic partnerships. The Partnerships Executive will work with internal teams and external organizations to strengthen collaboration and ensure shared objectives are met. Key responsibilities Establish and manage partnerships that align with Three UK’s business goals Maintain ongoing communication with partners to support mutual success Contribute to initiatives that enhance customer connectivity and satisfaction Location This position is based in London.

Join Three UK as a Regulatory Lead and play a pivotal role in shaping our regulatory strategies. You will be at the forefront of navigating complex regulatory landscapes, ensuring compliance, and advocating for our interests in the telecommunications sector.

About Zoopla Zoopla is a leading UK property platform, known for helping people make informed decisions about buying, selling, and managing property. More than nine million people visit Zoopla each month, generating over a billion property searches every year. Our reach extends beyond property listings: over five million homeowners subscribe to track their property values, creating a steady stream of potential movers for our clients, including estate agents and housebuilders. We focus on developing innovative, AI-powered experiences that engage users and provide measurable value for our customers. Our core values, simplicity, ownership, continuous improvement, and teamwork, shape the way we work together. We prioritize progress over perfection, aiming for clear objectives and strong collaboration to reach our goals. Role Overview Zoopla is looking for a Senior Product Designer to join our London-based team. This is a hands-on role with real influence over both the product development process and the final user experience. The Senior Product Designer will work across the entire product lifecycle, from identifying problems to delivering and refining solutions. The focus is on designing experiences that are intuitive, user-friendly, and impactful for the business. This role goes beyond responding to briefs. The Senior Product Designer will help spot new opportunities, align design work with broader business objectives, and ensure that each project delivers measurable results. The ideal candidate approaches user journeys holistically, understands how features connect, and considers both immediate outcomes and long-term product strategy. Design at Zoopla is seen as a driver for growth, conversion, and customer value. Key Responsibilities Ownership and Impact Lead the design process within a cross-functional team, from problem framing through delivery and optimization. Take responsibility for achieving outcomes, not just producing deliverables. Translate customer insights and behaviors into actionable opportunities, prioritizing initiatives by impact, effort, and business value. Balance user needs, technical constraints, and business priorities when developing solutions. Designing Comprehensive User Experiences Create intuitive, high-quality user journeys for web and mobile platforms, focusing on usability, performance, and consistency. Design for the full user lifecycle, including onboarding, engagement, retention, and reactivation. Ensure that experiences are connected across the user journey, not limited to individual features. Data-Driven Growth and Experimentation Define clear success metrics for projects and use measurable data to guide and evaluate work. This Senior Product Designer position is based in London, England, United Kingdom, at Zoopla Property Group Ltd.

Role overview Xero Limited is seeking a Senior Engineer to join its UK Regional Team, based in London at 7 Devonshire Square. This position focuses on shaping features for the UK market, connecting technical work directly to customer needs and business outcomes. Senior Engineers at Xero handle complex challenges that span multiple products, balancing regional requirements alongside global strategy. Team structure and collaboration The team includes an Engineering Manager, Lead Engineers, and Engineers, all reporting to the General Manager of Engineering for the UK. Collaboration is a core part of the role. Senior Engineers work closely with product owners and peers across Xero, designing, building, and delivering solutions that have real impact. Projects and technical scope Current projects span the full Xero platform, including Payments, Accounting, and Payroll. This role provides exposure to a broad range of products and technical domains within Xero’s suite. Work environment Xero holds a Great Place to Work UK accreditation. Flexible work arrangements are available: choose remote, hybrid, or office-based work in London, Milton Keynes, or Manchester. Offices are designed to support collaboration and connection. Some travel may be needed to coordinate with global teams and support international partnerships. Requirements Curiosity and drive to solve customer problems, delivering clear business value across technical areas Adaptability in learning new domains and navigating unfamiliar codebases Ability to work with stakeholders and build consensus across distributed teams Commitment to high-quality engineering practices, producing scalable and maintainable code Comfort in high-visibility situations, using strong communication to engage stakeholders and broaden influence Experience with modern programming languages and frameworks, along with a solid understanding of software engineering fundamentals

Role overview The Regulatory Lead at Three UK plays a key part in guiding compliance and shaping company policy to meet telecommunications regulations. Based in London, this position works closely with teams across the business, providing regulatory expertise and ensuring that company practices align with industry requirements. What you will do Advise on regulatory issues that impact the telecommunications sector Collaborate with internal teams to maintain compliance with laws and standards Assist in developing and updating internal policies to match current regulations Support the business in understanding and applying regulatory changes Location This role is based in London.

About 9fin9fin is an innovative AI platform that revolutionizes global debt markets, which represent the largest asset class exceeding $145 trillion.The debt market is extensive, critical, and global; however, it is often hindered by fragmented data, cumbersome PDFs, and outdated manual processes. 9fin addresses these challenges by offering a unified platform that consolidates proprietary credit data, in-depth analysis, and valuable workflows across international markets.Currently, 9fin supports over 300 prestigious institutions globally, including leading banks, asset managers, private equity firms, law firms, and advisory services. Our business is experiencing rapid growth, particularly in the US, with exceptional retention rates driven by extensive workflow integration.We stand at a pivotal moment in our journey. With validated product-market fit and robust global demand, 9fin is on a fast track to becoming the definitive platform for debt markets worldwide.The OpportunityBecome part of 9fin’s dynamic Data, Design, Product & Engineering team, freshly funded with $50M in Series B financing. We are assembling a world-class product team poised to lead the industry.With ten established product squads and plans for expansion, we seek a Senior Product Manager to guide one of our core teams based in London as we continue to cultivate an exceptional product organization.This role offers an exciting opportunity to influence the direction of a product and a company that is leveraging technology to transform the trillion-dollar debt capital market.

Our VisionAt Omnea, we are revolutionizing the way enterprise businesses operate, beginning with the most challenging aspect: procurement. This process can often extend over months, involving 50+ emails and the collaboration of Finance, Legal, Security, and IT teams to secure approvals.Having successfully raised $75M from Khosla Ventures, Insight Partners, and Accel, we are driven to transform this experience. Our AI-driven platform seamlessly connects all stakeholders, steps, and systems, making purchasing quick, secure, and efficient — a centralized hub for requests, automated approvals and renewals, real-time supplier risk assessment, and comprehensive spend visibility.With a $7B+ untapped market, our growth trajectory showcases the vast opportunity: we have achieved a tenfold increase in ARR to double-digit millions within 18 months, gaining the trust of global enterprises such as Spotify, MongoDB, Monzo, and Albertsons. We are proud to be recognized as the 4th fastest growing startup in Europe.Our team has previously scaled Tessian (a notable cybersecurity company, backed by Sequoia, Balderton, Accel, and acquired post-Series C). Our diverse team includes former founders and operators who have successfully grown unicorns, launched top-tier products, and executed at the highest levels. You will collaborate with leaders such as Ben, Abs, Sabrina, and Rebe.What We SeekWe are in search of a highly skilled and exceptional product manager to lead the development and delivery of our product, from defining features to final implementation.This is an exciting time to join us, as we have recently secured $50M in Series B funding from Khosla Ventures, Insight Partners, Accel, Point Nine, and others.

Teamwork makes the stream work. Join Roku and revolutionize the way the world experiences television.As the leading TV streaming platform in the U.S., Canada, and Mexico, Roku is on a mission to power every television globally. We were pioneers in bringing streaming to the TV, and we strive to be the premier platform connecting the entire TV ecosystem. We empower consumers to access their favorite content, help content publishers grow and monetize their audiences, and provide advertisers with unique tools to engage viewers.Your journey with Roku begins with making a meaningful impact from day one. As a fast-growing public company, everyone plays a crucial role in our success. You will have the chance to delight millions of TV streamers worldwide while gaining valuable experience across diverse disciplines. About The TeamThe Viewer Product Team at Roku connects millions of viewers to their favorite entertainment through a uniquely Roku experience. The International Product Team collaborates with functional experts and strategic leaders to build and execute roadmaps across all aspects of the Roku ecosystem in markets worldwide. This team works cross-functionally to identify consumer needs, analyze market opportunities, derive insights from data, and collaborate on effective go-to-market strategies for new features alongside marketing, sales, merchandising, data science, engineering, and other product teams. About The RoleWe are seeking a strategic, growth-oriented, collaborative, and experienced Product Manager to lead Roku’s viewer (OS/platform) product management in the UK. This role involves overseeing our growth and engagement strategies, managing our product roadmap, and identifying key product priorities that support Roku’s strategic objectives in the UK. You will play a pivotal role in driving Roku’s business growth in the UK and collaborating with leaders to develop a strategic plan positioning Roku as a future leader in the UK media and streaming landscape. You will be responsible for setting and achieving key market goals that align with our broader UK strategy while working with other key leaders in the market.The ideal candidate is a strong product thinker with a passion for data-driven decision-making and a proven track record in product management.

Role Overview goodstack is looking for a Senior Product Engineer in London, UK. This role focuses on building and improving products that make a real difference for users and deliver strong performance. The Senior Product Engineer works closely with colleagues from different teams to design, build, and fine-tune product features. What You Will Do Design and implement new product features with a focus on user experience and performance Collaborate with cross-functional teams throughout the development process Refine existing features based on feedback and evolving requirements Help keep goodstack’s products competitive in a changing technology landscape Location This position is based in London, UK.

Business Analyst Reference Number: JR254146Location: Hybrid working model - a blend of home-based and office work at Borough High Street (60/40)Working Pattern: Full Time, 37.5 hours per weekContract Type: PermanentNumber of Roles: 2Grade: IT5ASalary: £51,000 - £54,800 per annumWe are seeking a motivated and skilled Business Analyst to join our dynamic team.Role SummaryIn this role, you will be pivotal in managing customer expectations and demands. You will collaborate closely with various IT functions and business units to assess their needs, ensuring they receive top-notch service and facilitating the prioritization of project deliveries.What You Will Bring to This RoleIf you are passionate about driving change, influencing decisions, and thriving in a fast-paced, collaborative atmosphere, this position is perfect for you.Proven experience in delivering multiple projects within a matrix systems environment.Proficient in organizing and leading workshops, as well as negotiating with diverse stakeholders, up to 10 at a time.Adept at identifying genuine business needs, exploring solution alternatives, and articulating proposals that yield business value. Confident in presenting ideas and recommendations.Experience in developing and maintaining business process maps.Outstanding communication skills – capable of translating technical concepts into business-friendly language, both in written and verbal formats.Results-oriented with a strong focus on managing the delivery timeline of business solutions.A collaborative team player, skilled in working effectively with others.Self-motivated with a strong emphasis on customer and end-user delivery.Knowledge of data governance frameworks and protocols.Familiarity with ITIL processes and standards.About UsKaplan Professional stands as a premier provider of apprenticeships, accountancy, tax, finance, and banking courses, alongside professional assessments. For nearly 80 years, we have played a significant role in shaping the careers of finance professionals.

Location: London (Hybrid: 4 days in the office, 1 day from home each week) About Ebury Ebury helps ambitious businesses grow internationally. The company values collaboration, creativity, and practical problem-solving, aiming to make every team member feel supported and empowered. Role Overview The Senior Product Manager - Partnerships will lead the development and scaling of Ebury’s fastest-growing channel: Partnerships. This area is commercially strong but currently depends on manual processes, fragmented tools, and custom solutions. The goal is to build a product layer that supports scalable indirect operations for partners, their clients, and the internal teams who work with them. Collaboration This position sits at the intersection of product, operations, and commercial teams. Regular collaboration with Partnership Managers, Middle Office teams, and direct interaction with clients and partners is essential. What You Will Do Oversee the end-to-end product experience for the indirect channel, focusing on two main areas: Partner Platform Experience Develop tools for partners to onboard, manage, and grow their client base Provide insights into partner performance, activity, and client behaviors Reduce dependency on manual support Partner Client Experience (White-label / IB clients) Shape the experience for partner clients using Ebury products Ensure a seamless, credible, and scalable journey for different partner types Balance configurability with consistency across the platform