Senior Identity & Authentication Engineer

Join Adyen as a Staff Software Engineer At Adyen, we are the financial technology platform of choice for premier enterprises, delivering an integrated solution for payments, data, and financial products to global giants such as Meta, Uber, and H&M. We pride ourselves on fostering an ambitious environment where our talented individuals can flourish, supported by a culture that values ownership and collaboration. Here, you will work alongside motivated peers to tackle unique technical challenges on a grand scale, crafting innovative and ethical solutions that empower businesses to reach their goals more swiftly. About the Role We are on the lookout for an exceptionally skilled and passionate Staff Software Engineer to join our dynamic team. The ideal candidate will possess a robust background in developing reliable, scalable, and low-latency systems, with hands-on experience in applying Machine Learning (ML) solutions. In this pivotal role, you will be integral to the design, development, and scaling of systems that harness ML to address real-world business challenges. If you are driven by curiosity about emerging technologies, eager to expand your knowledge, and enthusiastic about leveraging technology as a practical tool to create significant business impact, then this is the role for you. You will thrive in an environment that emphasizes innovation, continuous learning, and teamwork. The Opportunity Adyen is enhancing its capabilities in data-driven risk management to effectively combat financial crime and fraud across our platform. Operating at a massive global scale, we empower businesses worldwide to accept payments, issue cards, and integrate financial products, thus enabling millions of entrepreneurs to conduct business with reduced friction. As we pivot towards a more comprehensive approach to proactively detect and mitigate financial crime and fraud, your contributions will be vital. Key Responsibilities Design and implement robust, scalable software systems that seamlessly integrate Machine Learning models into production environments. Work closely with product managers, data scientists, and business stakeholders to comprehend business issues and convert them into effective technical solutions. Assess and embrace new technologies, frameworks, and tools, driving their adoption where beneficial to tackle real business challenges. Mentor and support junior engineers, fostering their growth and development within the team.

Samba TV is a pioneering force in the realm of streaming and broadcast video, leveraging our proprietary data and innovative technology to revolutionize the viewing experience globally. Our mission is to connect media companies with audiences for their latest shows and movies while enabling advertisers to engage effectively with viewers, measuring reach across all devices. Backed by a global presence and AI-driven insights, we offer a unique perspective on culture and entertainment.We invite you to join our Identity team in Amsterdam as a Senior Software Engineer. This team is responsible for developing and managing the core systems that drive Samba TV's cross-device identity resolution, data onboarding, and distribution capabilities, which serve as the essential connection between our data and advertisers, agencies, data partners, and internal product teams.In this role, you will architect and implement large-scale, cloud-native data engineering systems that efficiently ingest, transform, and distribute identity-linked data at an extensive scale.With over 12 years of experience, you will operate as a technical authority, guiding the direction of Identity systems, resolving complex challenges, and shaping the evolution of these systems to support Samba's expanding product ecosystem. As a recognized subject matter expert within the organization, you will drive cross-functional collaboration and be accountable for outcomes that span the Identity domain and broader product engineering.

At Samba TV, we revolutionize how viewers interact with streaming and broadcast video globally through our innovative data solutions and cutting-edge technology. Our mission is to enhance the viewing experience for everyone. By harnessing our extensive data, we empower media companies to connect with audiences and help advertisers engage viewers while effectively measuring reach across all devices. Our unique perspective on culture is driven by our global data footprint and AI-powered insights.We are seeking a highly skilled Senior Software Engineer to join our dynamic Identity team based in Amsterdam. This team is responsible for building and maintaining the core systems that facilitate Samba TV’s cross-device identity resolution, data onboarding, and distribution capabilities. These systems form the essential link between our data and various stakeholders including advertisers, agencies, data partners, and internal product teams.In this role, you will be responsible for designing, developing, and operating robust data engineering systems that efficiently ingest, transform, and deliver identity-linked data at scale.To succeed in this position, you should possess over 8 years of experience, take significant ownership of complex platform components, and collaborate effectively with other senior engineers to establish cohesive technical direction. You will serve as a trusted advisor in design and architecture discussions, provide mentorship to junior team members, and be a cooperative partner to adjacent teams.

Join our innovative team at Pinely as a Machine Learning Performance Engineer. We are on a mission to accelerate large-scale model training by optimizing our internal infrastructure and computing stack. In this pivotal role, you will engage with the entire training pipeline—from GPU kernels to system-wide throughput—utilizing profiling, CUDA-level tuning, and advanced distributed systems methodologies. Your contributions will be vital in minimizing training durations, enhancing iteration speeds, and maximizing computational efficiency.As a key member of our growing team, you will help cultivate deep technical expertise in ML training systems.Responsibilities:Enhance our model training pipeline to increase speed and reliability, facilitating quicker and more effective experimentation.Utilize GPU optimization techniques via tools like JAX, Triton, and low-level CUDA to elevate training performance and efficiency at scale.Diagnose and rectify performance bottlenecks throughout the ML pipeline—from data loading and preprocessing to CUDA kernels.Develop tools and expand our internal infrastructure to enable scalable, reproducible, and high-performance training workflows.Guide and mentor engineers and researchers in implementing performance best practices across the team.Assist in enhancing the team's capabilities in GPU and systems-level expertise, contributing to a culture of engineering excellence and rapid experimentation.Requirements:Proven experience optimizing neural network training in production or large-scale research environments, such as reducing training time, enhancing hardware utilization, or expediting feedback cycles for ML researchers.Extensive hands-on experience with ML frameworks like PyTorch or JAX.Practical experience training and optimizing deep learning architectures, including LSTM and Transformer-based models with various attention mechanisms.Familiarity with CUDA, Triton, or other low-level GPU technologies for performance tuning.Expertise in profiling and debugging training pipelines using tools like Nsight, cprofiler, CUDA, gdb, or torch profiler.Comprehension of distributed training concepts including data/model/tensor/sequence/pipeline/context parallelism and memory-compute trade-offs.A collaborative and proactive approach, coupled with strong communication skills and the ability to mentor team members effectively.Strong proficiency in Python for developing infrastructure-level tools, debugging training systems, and integrating with ML frameworks and profiling tools.What We Offer:Competitive salary and comprehensive social benefits.Attractive bonus structure; we are flexible in discussions regarding salary and employment conditions.Access to state-of-the-art hardware and software in production, alongside a highly skilled technical team.

At Samba TV, we harness advanced technology and proprietary data to track streaming and broadcast video globally, aiming to revolutionize the viewing experience for everyone. Our mission is to empower media companies to connect with audiences for new shows and movies, while enabling advertisers to engage viewers and measure their reach across various devices. Through our extensive global data and AI-driven insights, we offer a unique perspective on culture and media consumption.We are on the lookout for an accomplished Engineering Manager to spearhead our Identity team. As a critical component of Samba's infrastructure, this team focuses on cross-device identity resolution and data onboarding capabilities. In this role, reporting to the Senior Director of Engineering, you will lead a talented group of engineers dedicated to building and maintaining the systems that drive identity resolution, data ingestion, and distribution across the Samba platform and its partner ecosystem.This position is pivotal, prioritizing execution and delivery within the realms of privacy, data infrastructure, and advertising technology. You will play a key role in steering the development and delivery of identity products that serve advertisers, agencies, and data partners on a global scale, collaborating closely with Tech Leads and senior engineers to set the technical direction.

About Flexport Flexport works to simplify international trade, aiming to make it more accessible and efficient for businesses worldwide. Each year, the company helps move over $19 billion in goods across 112 countries. Backed by leading investors, Flexport uses technology and a skilled team to address challenges in global supply chains, impacting business operations, society, and the environment. Role Overview: Staff Software Engineer – Applied AI Flexport’s Applied AI team is building AI agents that anticipate issues, optimize shipment routes, and keep goods moving efficiently. These systems are designed to automate logistics while involving experts at key decision points. Early results show strong promise, and the team is focused on creating supply chains that run with greater autonomy. This position is for those who want to shape the future of global logistics through technology. This role goes beyond standard engineering work. The Staff Software Engineer will identify high-impact problems, design creative solutions, and implement them for freight operators working across 112 countries. What You Will Do Develop and launch end-to-end AI agents that handle real-world logistics tasks, including customs compliance, document processing, and exception management. Work closely with teams across the company to understand challenges, align stakeholders, and drive solutions independently. Move quickly from idea to production, treating each deployment as a learning opportunity. Engage with operators, subject matter experts, and leadership to turn complex, ambiguous problems into practical solutions. Location Amsterdam, Netherlands

Please note that this opportunity requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them straightforward, equitable, and accessible for everyone. Our vision extends beyond payments; we aspire to redefine the future of finance. As a movement, we're empowering millions, united by a common goal of addressing significant challenges in the financial landscape. We're just at the beginning of this exciting journey.We thrive on agility, bold thinking, and a culture of trust where we challenge the status quo, fostering learning and growth at every step. If you seek more than just another job, if you're eager to create something significant alongside a talented team, you’ve found your place!Your RoleAs a Staff Software Engineer within the Consumer Wealth team, you will take on a pivotal and strategic role in shaping how our users cultivate and manage their savings and investments. As the primary technical authority in the Consumer domain, you’ll lead initiatives that empower millions to enhance their financial well-being through our innovative savings products and investment solutions.Daily Responsibilities:Define Technical Strategy: Craft the technical strategy for the Consumer Wealth sector, architecting intricate subsystems that facilitate savings and investment features while considering cross-product impacts, leading efficient initiatives that benefit multiple teams.Advance Architecture: Design and implement scalable, high-performance systems that address complex financial engineering challenges, streamlining sophisticated back-end systems for savings and wealth management.Technical Thought Leadership: Establish cross-departmental relationships to ensure technical coherence, articulating the technical vision both internally and externally, while keeping abreast of emerging trends in FinTech and wealth management.Develop Talent: Nurture the next generation of technical leaders and advocate for a culture of top-tier engineering and continuous enhancement.Generate Impact: Contribute significantly to helping users grow their wealth and achieve their financial aspirations through your work on the Consumer Wealth back-end infrastructure, directly supporting Satispay's mission.Prepare for challenges, collaboration, and the opportunity to realize your ideas. Our tech stack includes a variety of advanced technologies.

Established in 2015, Shield AI is an innovative venture-backed company at the forefront of deep-tech, dedicated to safeguarding both service members and civilians through cutting-edge intelligent systems. Our product offerings include the advanced V-BAT and X-BAT aircraft, along with the comprehensive Hivemind Enterprise and Hivemind Vision product lines. With a strong presence across the U.S., Europe, the Middle East, and the Asia-Pacific, Shield AI's technology is pivotal in supporting global operations. For further insights, please visit www.shield.ai. Connect with Shield AI on LinkedIn, X, Instagram, and YouTube. The Senior Staff Engineer for Software Autonomy Applications will leverage their technical expertise to provide crucial support to customers during the deployment and utilization of Shield AI's enterprise software solutions. This role requires close collaboration with clients to fully understand their unique requirements, ensuring seamless product integration for AI and autonomy development initiatives.

Join Adyen as an Identity and Access Management (IAM) Engineer, where you will play a crucial role in safeguarding our systems and data. In this position, you will be responsible for implementing and managing IAM solutions to ensure seamless and secure access for our users. Collaborate with cross-functional teams to enhance our security posture, streamline user management processes, and contribute to the overall development of our IAM framework.

At Databricks, we are dedicated to empowering data teams to address some of the most pressing challenges in the world, ranging from security threat detection to advancements in cancer drug development. We achieve this by creating and maintaining the world’s most sophisticated data and AI infrastructure platform, allowing our clients to concentrate on the critical challenges inherent to their missions. Our engineering teams design and implement highly technical products that meet genuine, significant needs globally. We operate one of the largest software platforms, comprising millions of virtual machines that generate terabytes of logs and process exabytes of data daily. Given our scale, we consistently encounter cloud hardware, network, and operating system faults, and our software must effectively shield our customers from these issues. The Delta DML team is responsible for the core write-path operations of Delta Lake, the open-source storage layer that underpins the Databricks Lakehouse. Our goal is to provide unparalleled performance and a seamless user experience at an enormous scale, with the majority of data written in Databricks flowing through our platform. We spearhead performance innovations such as Low Shuffle Merge and Deletion Vectors, while actively contributing to open-source initiatives to unify Delta and Iceberg formats. We are looking for an exceptionally skilled and experienced Senior Staff Software Engineer to join our backend team. In this role, you will play a crucial part in designing, developing, and maintaining robust backend systems that support Databricks workspaces. You will be tasked with building the next-generation platform for serving workspace assets, ensuring high queries per second, low latency, and reliable, high-performance systems while proactively addressing future growth challenges. Additionally, as a senior member of the team, you will provide technical leadership, mentorship, and guidance to junior engineers, contributing to the overall enhancement of team coding practices and system designs.

Optimize digital journeys that significantly enhance conversion and sales.At Carré, the experience begins online: on the website, through campaigns, and at every step towards ticket sales. In this role, you will take ownership of our digital channels and witness the immediate impact of your work. You will continuously analyze, optimize, and improve in an environment where data, creativity, and culture intersect.Your Role at CarréAs a Digital Experience & Performance Marketing Specialist, you will operate at the intersection of data, technology, and content. You will be responsible for the digital foundation where campaigns, content, and ticket sales converge, playing a crucial role in shaping our audience's online experience. In this position, you will manage the Carré website and the performance of our online campaigns, ensuring that the website functions optimally both technically and content-wise, and that campaigns drive conversions. By testing, measuring, and adjusting, you will continuously enhance the online customer journey. Your efforts will have a direct impact on reach, ticket sales, and the quality of our digital experience.You will work within the Marketing & Communication team and report to the Head of Marketing & Communication. You will collaborate closely with colleagues from marketing, ticketing, and programming, and work alongside external agencies. The team is professional, engaged, and informal. We work collaboratively, share ideas, and take responsibility for our work. The CRM Marketer manages the lifecycle and email journeys, while you, as the Digital Experience & Performance Marketer, oversee website funnels, landing pages, and conversion rate optimization (CRO). Both roles work closely with data analysts to create a cohesive customer journey.What Will You Specifically Do?Publish and optimize content in the CMS, from text and images to landing pages for our performances, ensuring that all content aligns with our brand experience and conversion goals.

At Databricks, we are dedicated to empowering data teams to tackle some of the most pressing challenges in the world — from pioneering the next generation of transportation solutions to fast-tracking medical advancements. Our mission is fulfilled through the development and operation of a world-class data and AI infrastructure platform, enabling our customers to leverage deep data insights to transform their businesses.Founded by engineers and driven by a strong customer focus, we enthusiastically embrace every opportunity to confront technical challenges, whether it’s innovating next-generation UI/UX for data interfacing or scaling our infrastructure across millions of virtual machines. Our journey has just begun.Our engineering teams are tasked with creating highly technical products that address significant real-world needs. We manage and operate one of the most extensive software platforms, consisting of millions of virtual machines, generating terabytes of logs and processing exabytes of data daily. At our scale, we frequently encounter cloud hardware, network, and operating system faults, and our software must adeptly shield our customers from these issues.Unity Catalog serves as our platform's native unified and open governance solution for data and AI, breaking down silos, simplifying governance, and accelerating insights at scale. We are seeking a Senior Staff Software Engineer to lead the technical efforts for Unity Catalog Runtime Enforcement. This role involves building and fortifying the runtime enforcement layer for Unity Catalog, ensuring secure, consistent authorization, and data access across Databricks compute, engines, and cloud environments. This initiative aims to minimize incidents and streamline customer decisions by harmonizing enforcement semantics.

About ClickHouseRanked in the prestigious 2025 Forbes Cloud 100 list, ClickHouse stands out as a pioneering and rapidly expanding private cloud enterprise. With an impressive client base of over 3,000 and a remarkable annual recurring revenue (ARR) growth exceeding 250% year-on-year, ClickHouse is at the forefront of real-time analytics, data warehousing, observability, and AI-driven workloads.The company’s ongoing success was recently reinforced by a substantial $400M Series D funding round. Within the last quarter, notable clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have either adopted our platform or increased their existing usage. These companies join a renowned group of AI trailblazers and global giants including Meta, Cursor, Sony, and Tesla.Join us on our mission to revolutionize the way organizations interact with data. Embark on this exciting journey with us!About the TeamThe Cloud Performance Engineering team is tasked with developing the cloud-native ClickHouse Cloud Platform that is set to redefine the OLAP landscape. We are seeking outstanding performance engineers who possess a deep understanding of the performance thresholds of various distributed databases, alongside a knack for crafting tools that assess the performance and scalability of intricate systems. The ideal candidate will be a performance engineer specializing in distributed systems, equipped with robust experience in database benchmarking, test automation, system engineering, performance analysis, and capacity management. This role presents a unique chance to make a profound impact on our elastic, infinitely scalable, high-performance, serverless ClickHouse Cloud.Your Responsibilities:Conduct benchmarking of system performance and database performance analysis, focusing on capacity sizing and optimization.Diagnose and resolve application and server errors by analyzing logs and implementing appropriate triage measures.Propose configuration optimizations to address performance bottlenecks.Collaborate closely with the core development, cloud, and security teams to enhance ClickHouse Cloud’s performance.Initiate and lead Chaos Engineering projects across engineering teams, aligned with internal objectives.Create, implement, and oversee tools to systematically conduct chaos experiments and evaluate their effects.Delve into and cultivate a comprehensive understanding of large-scale distributed systems.Examine challenges in software resilience, operations, and delivery processes.Enhance our backend systems to incorporate Chaos Engineering methodologies.Monitor live systems and identify innovative ways to introduce disruptions.

Join our dynamic team at Adyen as a Staff Engineer specializing in Payments Settlement and Reconciliation. In this role, you will be responsible for ensuring accurate and timely settlement of payment transactions while enhancing our reconciliation processes. You will work closely with cross-functional teams to develop robust solutions and improve the overall customer experience.We are looking for innovative thinkers who are passionate about technology and have a deep understanding of payment systems. If you thrive in a collaborative environment and are eager to take on challenges, we want to hear from you!

airapps is looking for a Search Engine Optimization (SEO) Specialist based in Amsterdam. This position centers on improving the company’s online presence and attracting more organic visitors to its platforms. Role overview The SEO Specialist will play a key part in shaping and executing strategies that support airapps’ business objectives. Working closely with colleagues across different teams, the role requires both technical and collaborative skills to deliver results. What you will do Enhance online visibility for airapps’ digital platforms Drive growth in organic traffic through targeted SEO initiatives Work with cross-functional teams to implement and refine SEO strategies Align SEO efforts with broader business goals Location This role is based in Amsterdam.

At the forefront of modern electronic trading, technology plays a critical role. IMC is on the lookout for exceptionally motivated individuals to leverage quantitative research methodologies and hands-on experimentation within the technology utilized by exchanges, connectivity providers, and our proprietary systems. Your mission will be to devise innovative strategies that enable us to outperform competitors in the fiercely competitive realm of ultra-low-latency trading.As a Performance Engineer at IMC, you will be integral in analyzing, optimizing, and fine-tuning the interaction of our systems with exchange technologies. Collaborating with cross-functional teams, you will be charged with identifying performance enhancements throughout the trading stack. This position merges technical expertise with innovative problem-solving to strategically outmaneuver the competition in a highly demanding technical environment.

P-1319 At Databricks, we are driven by a passion for empowering data teams to tackle some of the world’s most challenging problems — from realizing the next mode of transportation to expediting groundbreaking medical advancements. We achieve this by developing and maintaining the premier data and AI infrastructure platform, enabling our clients to harness deep data insights to enhance their operations. Founded by engineers who prioritize customer needs, we embrace every opportunity to address technical challenges, whether that involves crafting next-generation UI/UX for data interaction or scaling our services across millions of virtual machines. And this is just the beginning. Our Developer Experience team is committed to ensuring Databricks engineers are both satisfied and exceptionally productive. We create the tools, processes, and infrastructure that significantly enhance engineering velocity as Databricks continues to grow. The ideal candidate will possess a blend of technical proficiency in various language toolchains (Scala, Rust, Python), build systems (particularly Bazel), compilers, version control systems, testing, and most importantly, a passion for improving developer experiences, complemented by a practical approach to delivering results incrementally.

Founded in 2015, Shield AI is a pioneering deep-tech enterprise dedicated to safeguarding both service members and civilians through the deployment of advanced intelligent systems. Our innovative product lines comprise the V-BAT and X-BAT aircraft, Hivemind Enterprise, and Hivemind Vision, all designed to enhance operational effectiveness globally. With a presence in multiple regions including the U.S., Europe, the Middle East, and the Asia-Pacific, Shield AI's cutting-edge technology is actively utilized in operations across the globe. For further details, please visit our website at www.shield.ai. Connect with us on LinkedIn, X, Instagram, and YouTube. As a Staff Engineer for Software Autonomy Applications, you will leverage your technical expertise to provide exceptional support and guidance to customers during the implementation and use of Shield AI's enterprise software solutions. This role demands close collaboration with clients to fully comprehend their requirements, ensuring successful integration of our AI and autonomy technologies.

Are you a visionary engineer who has successfully built agentic systems? Have you deployed LLM-powered features into production, distinguishing between impressive demos and scalable, functional solutions? If you find yourself bogged down by mundane CRUD operations, we have an exciting opportunity for you!Join us at Carv as an AI Native Staff Engineer. We are at the forefront of integrating agentic AI systems within the recruitment sector, and we're seeking a seasoned professional who has substantial experience in this domain to join our dynamic team.Key ResponsibilitiesDevelop AI-Driven Product SystemsCreate and implement comprehensive AI-powered product features from concept to deployment.Design architectures that seamlessly integrate LLMs, agents, and conventional software systems.Implement Retrieval-Augmented Generation (RAG) pipelines, structured reasoning flows, and tool-using agents.Enhance the reliability, latency, and cost-effectiveness of our solutions.Leverage AI for Engineering ExcellenceUtilize AI agents to enhance development speed, testing efficiency, and architectural decisions.Rapidly prototype and deliver production-ready systems.Establish internal AI tools to amplify team productivity.Pushing the limits of what current AI models can achieve.Drive Impactful SolutionsTransform product challenges into scalable AI-driven solutions.Evaluate real-world performance metrics like accuracy, business impact, and user experience.Prioritize production resilience over mere demo quality.Cultivate an AI-First Engineering CultureElevate our internal AI utilization standards.Set practical benchmarks for evaluation and iterative improvement.Mentor fellow engineers on AI-native methods and workflows.Contribute to the long-term technical strategy of the organization.Who You AreWe are looking for someone who:Incorporates LLMs into your daily work processes.Has experience creating agents, RAG systems, or AI-powered applications.Values practical reliability over theoretical perfection.Thinks in terms of orchestration beyond just prompts.Regularly experiments with new models and tools.We place less importance on:An academic background in ML.Publishing research papers.Training models from scratch.We value more:Your tangible outputs.Your ability to leverage AI for increased velocity.Your perspective on systems that incorporate AI components.Why Work With Us?At Carv, we are revolutionizing recruitment by placing AI at the center of our product development rather than as an afterthought.Join us, and you will:Collaborate with seasoned SaaS leaders with over 15 years of industry expertise.Gain significant ownership over architecture and AI strategy.Thrive in a high-velocity, high-impact environment.