Platform Security Engineer Jobs

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. What you'll do at Synthesia As a Research Engineer you will join a team of 40+ Researchers and Engineers within the R&D Department working on cutting-edge challenges in the Generative AI space, with a focus on creating high-quality, expressive and real-time synthetic voices. Within the team you’ll have the opportunity to work on the applied side of our research efforts and directly impact our solutions that are used worldwide by over 60,000 businesses. If you are an expert in ML, LLMs, speech generation, conversational models , this is your chance to make a global impact. You will join our Audio Post-Training Team , which works on generative speech and voice synthesis , ensuring our in-house voice models reach production-level quality, speed, and robustness. Typical projects include: Develop and evaluate streaming and speech-to-speech systems, enabling low-latency, interactive voice synthesis. Adapt models for new conditioning inputs (emotion, speed, prosody, speaker control, etc.). Implement post-training optimization techniques (quantization, pruning, distillation) to improve efficiency and latency in real-time speech generation. Integrate and test novel architectures, such as neural codecs, diffusion, or

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team As an Account Executive, Enterprise at Stripe, you will drive Stripe’s future growth engine by building new relationships with prospective companies, turning them into happy Stripe users. What you'll do As an Account Executive at Stripe, you'll drive future growth at Stripe by building relationships with prospective users and turning them into happy Stripe users. You are an adept salesperson, capable of engaging in business-level and technical conversations at multiple levels of the organization, including the CTO, COO, and CFO. You have experience working with upper-middle-market and enterprise companies. You have an in-depth understanding of the buyer journey and can lead a complex, multi-party sale in a highly consultative manner. You are used to building value in competitive situations and enjoy working on products that require deep product understanding, combined with technical knowledge. You are naturally curious and enjoy digging into business models and helping businesses quantify their investment decisions. You get excited about prospecting, and are capable of independently leading a sales cycle from start to finish. Finally, you enjoy building—you like to actively participate in the development of our sales process, the articulation of our value proposition, and the creation of key tools and assets. If you're motivated, smart, persistent, and a great teammate, we want to hear from you. Responsibilities Own a named account list and

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. What you’ll do In this role, you will be at the forefront of a rapidly evolving space, helping to define and execute Stripe's strategy for enabling AI agents to thrive online. You will play a critical role in engaging early adopters, understanding key use cases, and driving the Stripe narrative on Agentic Commerce. Responsibilities Engage with early adopters among AI companies, marketplaces, and developers to understand their needs and challenges in leveraging financial services within agentic workflows. This includes companies focused on personal shopping agents and those building AI-powered applications. Develop a deep understanding of agentic commerce use profiles, including traditional companies exploring AI, marketplaces with monetization needs, personal shopping agents requiring spend/hold/receive functionalities, and developers seeking Stripe integration. Articulate Stripe’s narrative on agentic commerce and its value proposition to various audiences, demonstrating how Stripe is solving key problems such as automating financial services, monetizing AI agent usage, enabling secure spending by AI agents, and simplifying integration. Develop and recommend solutions in partnership with core Account Executives, Solutions Architects, Product, and Product Marketing tailoring Stripe's offerings to specific agentic commerce use cases. Contribute to the development and execution of the go-to-market strategy for Agentic Commerce. Help develop AI-specific s

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Data at Brex Our Scientists and Engineers work together to make data — and insights derived from data — a core asset across Brex. But it's more than just crunching numbers. The Data team at Brex develops infrastructure, statistical models, and products using data. Our work is ingrained in Brex's decision-making process, the efficiency of our operations, our risk management policies, and the unparalleled experience we provide our customers. What you'll do As a Data Engineer at Brex, you will be a core contributor in transforming raw data into actionable insights for various departments across the organization. You'll collaborate closely with Data Scientists, Software Engineers, and business units to create efficient data models, pipelines, and analytics frameworks that drive the business forward. You also play a leading role in the design, implementation, and maintenance of Core Data tables, our high-quality, curated data source for a

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world's largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team Specialist Solutions Architects (SSAs) are domain experts aligned to Stripe’s solutions and the customer buying centers they serve. We combine deep product and industry expertise with an understanding of our customers’ most complex business and technical challenges. The SSA team partners with specialist sellers and the broader pre-sales organization to shape strategic opportunities, develop pipeline, improve revenue attainment, and turn Stripe’s product capabilities into measurable customer outcomes. We also bring field insights to Product and Engineering, helping influence Stripe’s roadmap and go-to-market strategy. What you'll do As Head of Specialist Solutions Architecture for Revenue in the Americas, you will lead the regional strategy, execution, and growth of the SSA organization supporting Stripe’s Revenue Suite. You will define how Stripe engages customers around billing, monetization, and revenue management—from initial business and technical discovery through solution design, adoption, value realization, and expansion. You will build and develop a high-performing team of specialist architects and create the operating model, playbooks, and cross-functional partnerships needed to scale the organization. Working closely with Sales, Marketing, Alliances, Professional Services, Support, Product, and Engineering, you will help customers modernize their revenue infrastructure while accelerating adoption and growth for Stripe’s Revenue

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE Everpure Japan is seeking a dynamic and driven Sales Hunter to join our Central Government team in Japan In this role, you’ll be at the forefront of developing new business, working with our channel resellers and key customer accounts. Collaborate with Sales, Pre-sales, Partner sales, and Field Marketing teams to drive success in the Public sector. WHAT YOU'LL DO Promote our innovative and simple all-flash enterprise storage technology and data solutions, clearly articulating the value Everpure provides to public-sector customers in Japan, including central government ministries and independent administrative institutions. Build and invest in strong customer relationships, continuously leading efforts to achieve industry-leading levels of customer satisfaction. Develop and execute effective account plans by fully leveraging internal resources, leading cross-functional project teams to drive new customer acquisition. Manage a healthy and robust sales pipeline to consistently achieve quarterly and annual targets. 本ポジションでは、以下の業務をお任せします 革新的、且つ、シンプルなオールフラッシュ & エンタープライズストレージ技術、及び、データソリューションを推進し中央省庁・独立行政法人のお客様に対してEverpureが提供する価値を的確に伝えていただきます 顧客との関係構築と投資を通じて、業界最高水準の顧客満足度の実現を継続的にリードしていただきます 社内のリソースを最大限に活用するアカウントプランを策定・実行し、プロジェクトチームをリードして新規顧客の獲得を推進していただきます 健全かつ充実した営業パイプラインの管理により、四半期・年間の目標達成を確実に導いていただきます WHAT YOU BRING Demonstrates sincerity and passion in engaging with public-sector customers in Japan,

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE Account Executive, SocialInfra (Tokyo) Everpure Japan is seeking a dynamic and driven Sales Hunter to join our Emerging team in Japan. In this role, you’ll be at the forefront of developing new business, working with our channel resellers and key customer accounts. Collaborate with Sales, Pre-sales, Partner sales, and Field Marketing teams to drive success in the Enterprise private sector. WHAT YOU'LL DO You will promote our innovative and simple all-flash enterprise storage technology and data solutions, and accurately communicate the value Everpure delivers to customers in Japan’s SocialInfra space. You will continuously lead efforts to achieve industry-leading customer satisfaction through building strong customer relationships and making long-term investments in those relationships. You will develop and execute account plans that maximize internal resources, lead project teams, and drive new customer acquisition. You will ensure the achievement of quarterly and annual targets by managing a healthy and robust sales pipeline. 本ポジションでは、以下の業務をお任せします 当社の革新的かつシンプルなオールフラッシュ・エンタープライズストレージ技術およびデータソリューションを推進し、日本国内のソーシャルインフラ（公共インフラ)のお客様に対して、Everpureが提供する価値を的確に伝えていただきます 顧客との関係構築と投資を通じて、業界最高水準の顧客満足度の実現を継続的にリードしていただきます 社内のリソースを最大限に活用するアカウントプランを策定・実行し、プロジェクトチームをリードして新規顧客の獲得を推進していただきます 健全かつ充実した営業パイプラインの管理により、四半期・年間の目標達成を確実に導いていただきます WHAT YOU BRING Sincerity and passion to engage seriously with customers in Japan’s SocialInfra

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here . With more than 500 million users around the world and 300 billion ideas saved, Pinterest Machine Learning engineers build personalized experiences to help Pinners create a life they love. With just over 4,000 global employees, our teams are small, mighty, and still growing. At Pinterest, you’ll experience hands-on access to an incredible vault of data and contribute large-scale recommendation systems in ways you won’t find anywhere else. What you’ll do: Build cutting edge technology using the latest advances in deep learning and machine learning to personalize Pinterest Partner closely with teams across Pinterest to experiment and improve ML models for various product surfaces (Homefeed, Ads, Growth, Shopping, and Search), while gaining knowledge of how ML works in different areas Use data driven methods and leverage the unique properties

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role As a Senior Research Engineer, you will join a team of 40+ Researchers and Engineers within the R&D Department working on cutting edge challenges in the Generative AI space, with a focus on avatar-centric interactive video diffusion models. Within the team you’ll have the opportunity to work on the applied side of our research efforts and directly impact our solutions that are used worldwide by over 60,000 businesses. This is a unique opportunity for experts in machine learning and diffusion models to shape the future of AI video agents that can think, act, and react like humans. As part of our Interactive Avatars Team, you’ll work on cutting-edge research with a clear focus on turning breakthrough ideas into real product capabilities. You’ll join a team that moves fast, iterates often, and builds models that ship and make a meaningful impact. Example tasks and responsibilities include: Adapt diffusion models to incorporate diverse conditioning signals (e.g., audio, motion, interaction cues). Develop methods for streaming infinitely long video sequences at real-time rates. Work on the perceptual layer of interactive agents, including understanding user audio and generating appropriate contextu

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here . We’re looking for a Staff Software Engineer to help build the next generation of Pinterest’s big data storage platform. You’ll work on some of the most exciting big data open source technologies — especially Apache Iceberg — at exabyte scale to power the data infrastructure that helps Pinners discover and do what they love. As a Staff Software Engineer, you’ll serve as a technical leader and hands-on contributor, designing and building highly scalable storage systems for Pinterest’s data lake. You’ll partner closely with teams across data, ML/AI, analytics, and infrastructure to evolve our storage and metadata management capabilities, enabling efficient, reliable, and governed access to data at massive scale. What you’ll do: Design, implement, and optimize Pinterest’s exabyte-scale data lake storage platform. Lead complex technical projects and

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team The Finance and Strategy team is an integral thought partner to Stripe's core functional leaders. We bring understanding and predictability to Stripe's bottom line financials. We work cross-functionally across many surfaces at Stripe and help steward Stripe's resource investments to improve the durability of our long term financial performance. What you'll do We're looking for a Finance and Strategy Partner to join our growing team. You'll help with forecasting, budgeting, and reporting for various departments accurately and in a timely manner and deliver improvements in our integrated financial systems with business partners, financial colleagues, and engineers. Responsibilities Partner closely with business leaders to support and influence key strategic and business decisions, serving as their financial partner for analysis and evaluation of strategic projects and initiatives (e.g., foundational investments or business model shifts) Design and provide analytical rigor to measure efficiency and ROI of investments in headcount and non-headcount expenses Drive reporting, process, and discipline for finance routines to shape and influence decision-making (e.g., budget, forecast, monthly reviews, and long-range plans) Build and own models for in-depth analyses, ensuring their quality, timeliness, and accuracy Define metrics, leading indicators, and reporting dashboards in partnership with cross-functional teams such as Data Science Drive contin

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team The Finance and Strategy team is an integral thought partner to Stripe's core functional leaders. We bring understanding and predictability to Stripe's bottom line financials. We work cross-functionally across many surfaces at Stripe and help steward Stripe's resource investments to improve the durability of our long term financial performance. What you'll do We're looking for a Finance and Strategy Partner to join our growing team. You'll help with forecasting, budgeting, and reporting for various departments accurately and in a timely manner and deliver improvements in our integrated financial systems with business partners, financial colleagues, and engineers. Responsibilities Partner closely with business leaders to support and influence key strategic and business decisions, serving as their financial partner for analysis and evaluation of strategic projects and initiatives (e.g., foundational investments or business model shifts) Design and provide analytical rigor to measure efficiency and ROI of investments in headcount and non-headcount expenses Drive reporting, process, and discipline for finance routines to shape and influence decision-making (e.g., budget, forecast, monthly reviews, and long-range plans) Build and own models for in-depth analyses, ensuring their quality, timeliness, and accuracy Define metrics, leading indicators, and reporting dashboards in partnership with cross-functional teams such as Data Science Drive contin

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team As Stripe’s user base and global footprint grows dramatically, we have distinctly unique support problems resulting from both our type of scale and the type of businesses we partner with. The Product Support team ensures Stripe’s users receive fast, reliable, and high-quality support across Stripe’s growing suite of products. The team partners closely with cross-functional teams to solve complex issues, improve support workflows, and continuously raise the bar on operational excellence and user experience At Stripe, our Mexico City office is a vibrant hub at the forefront of our mission to reshape the financial landscape for businesses worldwide. Our team prioritizes collaboration, innovation, and excellence. As a member of the Mexico City team, you'll be part of a mission-driven community dedicated to enhancing the global economy and increasing the GDP of the internet. We strive for excellence by creating with craft and beauty, while having fun and celebrating our successes together. We cultivate a culture of collaboration, inclusivity and support where every team member’s voice matters. Our commitment shines through as we handle over a million support cases each year, empowering our users not just to solve problems but to achieve their goals. What you’ll do In this role, you will recruit, manage, and develop a group of Operations Associates that are focused on user support for Top Startup Accounts. This person will cultivate the happin

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team As Stripe’s user base and global footprint grows dramatically, we have distinctly unique support problems resulting from both our type of scale and the type of businesses we partner with. The Product Support team ensures Stripe’s users receive fast, reliable, and high-quality support across Stripe’s growing suite of products. The team partners closely with cross-functional teams to solve complex issues, improve support workflows, and continuously raise the bar on operational excellence and user experience. At Stripe, our Mexico City office is a vibrant hub at the forefront of our mission to reshape the financial landscape for businesses worldwide. Our team prioritizes collaboration, innovation, and excellence. As a member of the Mexico City team, you'll be part of a mission-driven community dedicated to enhancing the global economy and increasing the GDP of the internet. We strive for excellence by creating with craft and beauty, while having fun and celebrating our successes together. We cultivate a culture of collaboration, inclusivity and support where every team member’s voice matters. Our commitment shines through as we handle over a million support cases each year, empowering our users not just to solve problems but to achieve their goals. What you’ll do We are looking for a dynamic and forward-thinking leader with a passion for solving complex, global user issues, redefining what operational excellence looks like, and driving an A

Lithic is the modern card issuing and processing platform empowering ambitious financial companies to build the future of payments. Our infrastructure powers card programs for 100+ innovative clients, from fintechs reimagining credit and digital banking to platforms transforming disbursements and spend management. Companies like Mercury, Flex, and Novo rely on Lithic's developer-friendly APIs, direct network connections, and flawless reconciliation to launch and scale card programs in weeks, not years. We're building a future where access to better financial products materially improves people's lives, free from the constraints of 30-year-old mainframes and legacy processors. We're proud to be backed by world-class investors who share that vision, including Bessemer Venture Partners, Index Ventures, Spark Capital, Stripes, and Mastercard, along with many others. We're a team of 170+ across 26 states and 7 countries, headquartered in New York City. We are hiring for our Treasury team Software Engineers at various levels (II and Senior) who are curious and willing to dive deep and understand our technology and domain in order to solve interesting and hard problems. The Treasury team maintains and builds the backend services that manage the flow of funds between Lithic and third parties. This includes our ledger, ACH and wire infrastructure, and associated reconciliation. The systems we maintain have high standards of reliability and correctness. You will become an expert in the card payments space. The Treasury team primarily uses Python for their tech stack. The Treasury team builds the mission-critical backend services that orchestrate the flow of funds between Lithic and external financial institutions. This includes engineering our core ledger, ACH and wire infrastructure, and high-precision reconciliation systems. As we handle the movement of money, we build our systems to the highest standards of reliability and correctness. Our team operates with a