Senior Identity & Authentication Engineer

Join our innovative team at dev2 as a Senior Identity & Authentication Engineer. In this pivotal role, you will design and implement robust identity and authentication solutions that ensure security and enhance user experience. Your expertise will contribute to the development of cutting-edge technologies that empower our clients and their users.

Join Adyen as an Engineering Manager for our Authentication Engine team. In this pivotal role, you will lead a dedicated group of engineers focused on developing and optimizing authentication systems that enhance security and user experience. Your leadership will drive innovation and ensure the delivery of high-quality solutions in a collaborative environment.

Welcome to Adyen At Adyen, we empower businesses by providing an all-in-one financial technology platform that combines payments, data, and financial products. Our esteemed clientele includes industry leaders like Meta, Uber, H&M, and Microsoft. We are dedicated to creating an environment where our teams can thrive, supported by a culture that encourages personal growth and career ownership. Our diverse group of motivated professionals collaborates to tackle complex technical challenges, delivering innovative and ethical solutions that help businesses achieve their goals faster. Your Role As a Senior Product Manager for Uplift - Authenticate, you will play a vital role in shaping how millions of customers verify their identities during transactions. Authentication is a crucial step in the payment process; executed poorly, it can hinder conversions, while executed effectively, it can drive secured revenue. You will spearhead the transformation of Adyen's authentication suite from a card-centric 3DS tool to a comprehensive, AI-driven Identity Orchestrator. You will not only implement existing protocols but will also redefine Adyen's position in the digital authentication landscape by navigating the complexities of global issuer behavior and pioneering the next phase of seamless commerce, including Passkeys and beyond. Your Responsibilities Strategic Leadership: Take ownership of the roadmap for Adyen's Uplift Authentication Engine, pushing the boundaries beyond 3D-Secure dominance and leading the development of a single-integration suite for various authentication methods. AI-Driven Improvements: Collaborate with our Uplift ML teams to optimize authentication, enhancing performance while ensuring a balance between security and conversion rates. Launch Innovative Methods: Scale authentication mechanisms from pilot stages to global implementation, keeping Adyen at the forefront of the shift towards wallet-centric authentication. Regulatory Guidance: Navigate the intricacies of PSD3 and RBI (India) while influencing global card networks to create high-performance experiences for our merchants. Develop Authen-as-a-Service: Explore and execute the vision for delivering authentication as a service to meet evolving market demands.

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.

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.

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.

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.

Role Overview Vattenfall is seeking a Product Owner focused on Identity & Access Management (IAM) and Consent for the Amsterdam office. This position shapes product direction and oversees delivery, making sure IAM solutions align with customer needs and regulatory requirements. What You Will Do Define and drive IAM and consent management product strategy Work closely with cross-functional teams to improve user experience Ensure solutions comply with current regulations Develop and refine consent management features

Join ServiceNow as an Advisory Presales Solution Consultant specializing in Security and Identity. In this pivotal role, you will engage with clients to understand their unique needs and provide tailored solutions to enhance their security posture and identity management capabilities. You will work collaboratively with sales teams to present innovative solutions that drive business value.

Winthrop Technologies is a premier data center delivery partner, renowned for providing comprehensive turnkey solutions to our clients. Headquartered in Dublin, we have a strong presence across Europe, specializing in the entire lifecycle of data center projects, from innovative design to meticulous construction. Our expertise encompasses a wide array of services including civil, structural, architectural, mechanical, and electrical engineering, as well as commissioning.As the leading and most trusted company in our field, Winthrop is proud to be the only dedicated data center delivery partner in Europe. Currently, we're engaged in multiple turnkey data center projects across seven European countries, totaling over 430 MW of IT load.We are excited to announce that we are looking for two Senior Electrical Engineers to join our growing team in Amsterdam. The successful candidates will play a pivotal role in supporting the mechanical delivery aspects of our projects in collaboration with the broader project team.

About Gigs Gigs builds a platform that lets technology companies add global mobile connectivity to their products. The goal: make it as easy to offer mobile services as it is to set up payments. Gigs removes telecom complexity for customers ranging from fintech startups launching mobile plans to HR platforms managing work phones. The team includes about 100 people working across the US and Europe, backed by nearly $100 million from investors like Ribbit Capital, Google, and Y Combinator. Gigs brings together engineers, product specialists, and business leaders with backgrounds at Stripe, Airbnb, Shopify, and other top tech companies. The company is growing quickly and tackling both technical and regulatory challenges to make connectivity seamless. Core Values Speed: Work with urgency and treat each week as important for progress. Ownership: Take initiative when problems arise and act with autonomy. Customer Obsession: Focus on customer success as a measure of company success. Ambiguity: Use good judgment and instincts to make decisions, even with incomplete information. First Principles: Question established practices and seek to understand the reasons behind them. Role Overview: Senior IT Systems Engineer The Senior IT Systems Engineer will help ensure that everyone at Gigs has the access, tools, and support needed to work efficiently. This position focuses on building and automating corporate IT infrastructure. The role is hands-on and results-driven, joining as the third member of the Security & IT team. Locations London, Amsterdam, Berlin

About UsAsula is at the forefront of the bitcoin revolution, dedicated to creating cutting-edge financial products that seamlessly integrate blockchains, bitcoin, stablecoins, and finance. We are currently developing Dawn, a user-friendly mobile interface that empowers individuals to save and enhance their assets using bitcoin and stablecoins. In addition to Dawn, we're innovating to provide accessible bitcoin swaps and credit solutions for holders of all sizes through advanced on-chain protocols.Role OverviewWe are on the lookout for skilled protocol engineers who are passionate about blockchain technology and can navigate the complexities of the blockchain stack to deliver new protocols while maintaining a balance between speed and security. Key responsibilities include:Creating and sustaining smart contracts for the SVM.Developing and overseeing collateral management strategies on bitcoin with its inherent limitations.Designing robust protocols for lending and insurance applications.QualificationsMinimum of 3 years of experience in designing protocols for financial applications, including decentralized exchanges and lending markets.Deep understanding of consensus mechanisms, blockchain architecture, and virtual machine principles, particularly those related to Solana.Proven experience with auditing, deploying, and maintaining on-chain protocols.Preferred QualificationsPrevious experience developing applications utilizing bitcoin.Experience in constructing application-specific blockchains, from consensus and networking to business logic.

Your Opportunity:At Mollie, we are dedicated to revolutionizing payments and financial management for businesses across Europe. With over 350,000 clients relying on us, we strive to eliminate the financial hurdles that stifle innovation and growth. Our ethos is centered around making payment acceptance, revenue generation, capital access, and financial management seamless for all merchants.As a Senior Application Engineer, you will play a crucial role in designing and developing cutting-edge financial products that will redefine how businesses handle their finances. As we expand into new markets and increase transaction volumes, Mollie is excited to offer innovative products that enhance our service offerings. You will have the chance to transform your ideas into reality and make significant contributions to projects that matter. Our solutions, such as Mollie Capital for easy financing access and In-person payments for retail transactions, are just the beginning of our quest to provide a comprehensive payment solution and financial management platform.

About UsTebi is revolutionizing the hospitality industry with our innovative Connected Restaurant Management System, designed to streamline operations in restaurants, cafés, bars, and coffee shops. Our all-in-one platform integrates sales, reservations, kitchen preparation, payments, and insightful analytics to ensure seamless service.Founded by Arnout Schuijff, co-founder of Adyen, and backed by €50 million in investment from Index Ventures and CapitalG, Tebi prioritizes the needs of hospitality professionals. Our solution is already embraced by thousands of establishments across the Netherlands and the UK, with plans for expansion into additional markets.About the RoleWe are seeking a highly skilled Senior Application Engineer to enhance the core experience for restaurant teams. EU citizenship is required, and we welcome candidates relocating to Amsterdam with a comprehensive relocation package.In this role, you will spearhead the development of cross-platform features, collaborate closely with design and product teams, and contribute to backend components when necessary. A strong product mindset and a passion for improving developer experience are essential as you work to build superior software rapidly.This position is perfect for someone with a track record of successfully launching real-world applications and eager to make impactful technical decisions within a dynamic team environment.

About UsAt Aquablu, we are revolutionizing the beverage industry with our innovative flavored water systems. Founded in 2018 by visionaries Marnix and Marc, we provide a health-conscious alternative to sugary soft drinks. Since the launch of our flagship Aquablu REFILL system in 2023, we have experienced an impressive growth of over 300% year-on-year, expanded our reach to 16 countries, and earned the title of the Fastest Growing Tech Company in Health & Wellness within the Netherlands._____At Aquablu, we are committed to designing and constructing hardware that performs reliably in real-world environments, not just in theory. This is where you come in.You will serve as the vital link between product design and manufacturing realities, transforming conceptual designs into scalable, manufacturable, and cost-effective products. Your role will involve collaborating directly with suppliers across Europe and Asia to bring these concepts to life.This position is not merely about coordination; you will be responsible for tooling, supplier management, and ensuring successful outcomes.Your ResponsibilitiesYou will oversee the entire process from design to production readiness for critical components:Manage technical supplier relationships for all essential production tooling, including injection molds, stamping dies, casting tooling, and complex assemblies.Engage with suppliers to validate design manufacturability, providing clear, actionable feedback on feasibility, tolerances, finishes, and lead times.Make informed design freeze decisions based on real-world validations. You will approve parts based on their actual manufacturability.Lead First Off Tool (FOT) and sample approvals on-site at supplier locations, determining whether tooling is production-ready or requires further iterations.Establish and maintain a robust supply base for injection molded parts, sheet metal, fluid components, and electronics.Manage the transition from Engineering Bill of Materials (BOM) to Production BOM, ensuring supplier validation, lead times, and tooling status are confirmed before production begins.Collaborate closely with the Procurement team; while they handle commercial aspects, you will focus on technical execution and tooling success.Work in conjunction with the Engineering team to integrate supplier insights back into design until products are fully manufacturable.What we create is only as effective as how it's manufactured.You will ensure that our products are not only visually appealing but also capable of being produced on a large scale, maintaining quality and cost efficiency. This role is hybrid, requiring a minimum of 4 days at our office located in Houthavens, Amsterdam.

Are you a passionate engineer who enjoys both establishing frameworks and engaging directly in development? As a Senior Backend Engineer at Funda, you will design, build, and scale systems that assist millions of potential home buyers and real estate professionals daily. Your role bridges technology, architecture, and product development, allowing your voice to influence our direction.Your Role at a GlanceIn this position, you will be a key player in Funda’s backend domain. Your responsibilities include designing scalable systems, enhancing the technical foundations of our platform, and developing features that make a direct difference to millions of users.You will be part of a dedicated product team while collaborating across various teams: uniting people, ideas, and projects to advance our technical capabilities. Utilizing cutting-edge technologies such as .NET 8, Kubernetes, Azure, event-driven architecture, and Terraform, you will help keep our systems intelligent, scalable, and prepared for the future.This role uniquely combines deep technical expertise, ownership, and an influential voice in our development processes.Your Responsibilities IncludeGuide your team in alignment with our lighthouse architecture and contribute to its ongoing enhancement.Design and optimize critical systems demanding high performance and reliability.Tackle complex challenges related to scalability, data streams, and systems integration.Collaborate with product managers and designers to ensure technical choices align with the product vision.Mentor and share knowledge with mid and junior engineers, fostering Funda's culture of learning.Partner with other senior and staff engineers to evolve Funda’s technical strategy.Explore our Engineering Blog: Learn how we empower our development team with modular pipelines

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.

Join Altura, a trailblazing SaaS startup that has recently secured Series A funding!At Altura, our mission is to empower organizations to successfully navigate complex bidding processes, including tenders and RfPs. Our innovative AI-driven platform streamlines bid management, transforming it into a seamless and strategic endeavor. By integrating workflows, automating tasks, and enhancing knowledge accessibility, we enable teams to operate with unparalleled efficiency and effectiveness.And this is just the beginning.We are on the path to creating the first AI-powered Agentic Virtual Bid Management Assistant, which aims to fully automate the bid lifecycle. With fresh capital, ambitious goals, and a rapidly expanding team, we are just scratching the surface of what’s possible.If you are passionate about innovation, thrive in collaborative environments, and seek to make a significant impact, we invite you to join our team.Together, let’s shape the future!Role OverviewAs a Senior AI Engineer, you will become an integral part of our high-performing team, responsible for developing the agentic layer that propels Altura's next phase of growth. This is not a role that involves simply integrating prompts into an API; instead, you will design and implement authentic agentic workflows: context-aware, production-grade systems built on our proprietary data graph, establishing a robust technical foundation.You will collaborate within a nimble team, enjoying the freedom to experiment with the latest technologies: Claude Code, Cursor, Copilot, and emerging models as they are released. If it pushes the envelope of innovation, we are all in.You will lead high-impact AI initiatives from inception to execution:From discovery and greenfield prototypingTo model evaluation and multi-model strategyTo production rollout, observability, and ongoing enhancementsIn addition to product capabilities, you will contribute to the development of foundational AI platform components, including context engineering, agent orchestration, evaluation frameworks, tone monitoring, and real-time observability.We prioritize speed, ownership, and genuine technical influence—free from corporate bureaucracy and endless committees.You will deliver AI solutions that are:Dependable in a production environmentScalable across diverse customer basesQuantifiable in terms of impactEconomical by designAdditionally, you will play a key role in defining what exceptional AI engineering entails within a forward-thinking Series A company.

Join Adyen as a Senior Linux Infrastructure Engineer and be part of a dynamic team dedicated to providing cutting-edge solutions. In this role, you will leverage your expertise in Linux systems to enhance our infrastructure and ensure optimal performance. You will work collaboratively with cross-functional teams to architect and implement scalable solutions that drive our global payment platform.

sia is seeking a Senior Engineer to join its Energy & Utilities team in Amsterdam. This role influences project direction and supports sustainable practices across client engagements. Key responsibilities Collaborate with colleagues from multiple disciplines to shape and deliver strategies for client projects Use engineering knowledge to create solutions specific to the Energy & Utilities sector Promote sustainability throughout each stage of the project lifecycle Location This position is based in Amsterdam.