Senior Java Full Stack Developer

About Us At Riskified, we empower businesses to achieve ecommerce growth by mitigating risks. Our platform is trusted by some of the world’s most prestigious brands and publicly traded companies, offering guaranteed protection against chargebacks, combating fraud and policy abuse on a large scale, and enhancing customer retention. Our AI-driven fraud and risk intelligence platform is developed and managed by an extensive team of ecommerce risk analysts, data scientists, and researchers, analyzing each interaction to deliver real-time decisions and comprehensive identity-based insights. We proudly partner with remarkable companies across various industries, including Acer, Gucci, Lorna Jane, GoPro, and many more. We thrive in a collaborative environment, working alongside talented individuals to create and improve products that genuinely matter. The opportunities to innovate and contribute give us a sense of purpose, creating a lasting impact and motivating us to choose Riskified every day. About the Role As a Senior Full-Stack Engineer in Riskified’s Core Services Group, you will be responsible for designing, building, and maintaining end-to-end applications using diverse technologies. Working in a fast-paced, agile environment with cutting-edge tools, you will play a key role in expanding Riskified’s ecosystem. Our developers take full ownership of their work, from feature planning with Product and Design teams to technology selection, architectural design, coding, code reviews, deployment in a CI/CD environment, and ongoing monitoring post-deployment. The team primarily focuses on customer-facing applications, including a core web tool that enables merchants to review orders, take actions, and gain insights through advanced analytics. You will have the opportunity to engage in all aspects of development, whether that involves crafting precise UI, developing robust backend logic, or optimizing infrastructure for scalability. Our Technology Stack: Scala, Spark, Node.js, Ruby, React, Postgres, Elastic, Redis, AWS, Kafka, Docker, Kubernetes, CircleCI, and more. Your Responsibilities Design and develop a highly reliable, available, and scalable architecture for our core services and web applications in a promising new product. Deploy your code to production daily using advanced CI/CD pipelines. Actively manage production systems to ensure smooth operation. Contribute to planning the team roadmap and product development. Collaborate with design and product teams to define and implement new features.

About Us At Riskified, we empower businesses to drive eCommerce growth by eliminating risk. Our solutions are trusted by some of the world’s leading brands and publicly traded companies in the online space, providing guaranteed protection against chargebacks, fraud, and policy abuse while enhancing customer retention. Our AI-driven fraud and risk intelligence platform, managed by a robust team of eCommerce risk analysts, data scientists, and researchers, delivers real-time insights and decisions based on individual user interactions. We proudly partner with exceptional companies across various industries, including Acer, Gucci, Lorna Jane, GoPro, and many others. We thrive in a collaborative environment, working alongside talented individuals to create and enhance impactful products. The opportunities to innovate and contribute give us a profound sense of purpose, making our work at Riskified truly meaningful. About the Role As a Full-Stack Engineer in Riskified’s Core Services Group, you will develop and maintain end-to-end applications using a variety of technologies. In this dynamic, agile environment, you will play a crucial role in expanding Riskified’s ecosystem. Our engineers take full responsibility for their work, from feature planning with Product and Design teams to selecting technologies, designing architecture, coding, reviewing, deploying in a CI/CD environment, and monitoring performance post-deployment. You will work on customer-facing applications, including a core web tool that enables merchants to analyze orders, take actions, and gain insights through advanced analytics. Whether you are creating precise user interfaces, developing resilient backend logic, or optimizing infrastructure for scalability, you will be engaged in all aspects of the development process. Our Technology Stack: Scala, Spark, Node.js, Ruby, React, Postgres, Elastic, Redis, AWS, Kafka, Docker, Kubernetes, CircleCI, and much more. What You'll Be Doing Design and build a highly reliable, available, and scalable architecture for our core services and web applications in a new, promising product. Deploy code to production daily through our advanced CI/CD pipelines. Actively maintain production systems to ensure smooth operations. Contribute to planning the team roadmap and product features. Collaborate with design and product teams to define and implement new features. Qualifications B.Sc. in Computer Science or equivalent certifications. 3+ years of proven experience in full-stack development. Strong familiarity with various programming languages and frameworks. Excellent problem-solving skills and a passion for technology. Ability to work collaboratively in a fast-paced environment.

Role overview Riskified seeks a Senior Backend Engineer in Lisbon to help build and maintain the backend systems that power its fraud prevention platform. The position centers on improving efficiency and reliability for clients around the globe. This work supports the technical foundation that enables Riskified’s services to scale and perform. What you will do Design, develop, and maintain backend systems for the core platform Collaborate with cross-functional teams to deliver technical solutions Tackle complex backend challenges to support platform growth and stability Contribute to the adoption and implementation of new technologies Impact Senior Backend Engineers at Riskified influence both product direction and client outcomes. The work directly supports Riskified’s ongoing efforts to lead in fraud prevention and deliver reliable results to customers.

Role overview Riskified seeks a Backend Engineer in Lisbon to help build and maintain the systems behind its fraud prevention products. This position centers on developing backend applications that keep client transactions running smoothly. The work involves ensuring reliability and scalability across key services. What you will do Design, develop, and maintain backend applications that support fraud prevention efforts Work with colleagues from other teams to deliver solutions that perform well under load Help ensure the stability and scalability of systems that process client transactions

About UsAt Riskified, we empower businesses to unlock their ecommerce potential by mitigating risks. Our platform is trusted by some of the world’s leading brands and publicly traded companies to safeguard against chargebacks, combat fraud, and enhance customer loyalty. Our AI-driven fraud and risk intelligence solutions analyze interactions in real-time, offering robust identity insights that help our partners succeed in the competitive online landscape. We proudly collaborate with renowned companies across various industries, including Acer, Gucci, Lorna Jane, GoPro, and many more.We cultivate a collaborative and dynamic work environment, where innovative ideas flourish and meaningful contributions are valued. Our commitment to teamwork and excellence drives us to make a lasting impact in the ecommerce space, making Riskified a workplace of choice.About the Role*** Please note that this position will be recruited, hired, and employed by a third party.We are in search of a skilled and passionate Senior Data Platform Engineer to enhance and maintain our core data platform products, ensuring optimal performance, scalability, and stability. As a data-driven organization, we are committed to managing an increasing influx of data daily.In this role, you will be a vital part of the Data Platform team, responsible for overseeing a large-scale production data platform that serves as the backbone of our products. You will develop self-service tools to enhance platform accessibility for users in our R&D and Analytics departments, and act as a knowledge hub, consulting and sharing your expertise with your colleagues.What You’ll Be DoingLead the development of AI-ready foundations for our data platform, focusing on data quality, contracts, observability, and self-service tools that empower machine learning and AI-driven initiatives.Manage, provision, and monitor various platform products.Enhance the application infrastructure tightly integrated with our Data Platform tools.Provide guidance to development teams and mentor fellow team members.Utilize your creativity to solve complex, high-scale data challenges.Research and evaluate new technologies, starting from POC to deployment.

About UsAt Riskified, we empower businesses to drive e-commerce growth by mitigating risk. Our platform is trusted by some of the world's leading brands and publicly traded companies in their online operations. We provide guaranteed protection against chargebacks, combat fraud and policy abuse at scale, and enhance customer retention. Our AI-powered fraud and risk intelligence platform, developed by a dedicated team of e-commerce risk analysts, data scientists, and researchers, analyzes each interaction to deliver real-time decisions and insightful identity-based analytics. We're proud to partner with a diverse range of exceptional companies, including Acer, Gucci, Lorna Jane, and GoPro.We excel in a collaborative environment that fosters innovation and product development that matters. The opportunity to contribute meaningfully drives our passion and purpose at Riskified, making it a fulfilling place to work.About the Role*** A third party will recruit, hire, and employ this position.The Data Science department is integral to our company, adding value through the development of algorithms and production-grade analytical solutions. We utilize advanced techniques such as classification models, NLP, anomaly detection, and deep learning to maximize the value of data. As a Data Scientist, you will engage in the entire project development cycle, implementing end-to-end solutions. This role requires a strong foundation in quantitative and analytical skills, proficiency in statistical modeling and machine learning, and a technical aptitude paired with a passion for problem-solving and driving data-informed decision-making.What You'll Be DoingData Exploration and Preprocessing: Collect, clean, and transform large, complex data sets from diverse sources to ensure data quality and integrity for analysis.Statistical Analysis and Modeling: Utilize statistical methods and mathematical models to uncover patterns, trends, and relationships in data, while developing predictive models.Machine Learning: Create and deploy machine learning algorithms, including classification, regression, clustering, and deep learning techniques, to address business challenges and enhance processes.Feature Engineering: Identify relevant features from structured and unstructured data sources, designing new features to improve model performance.

As a Senior Full-Stack Software Engineer at Inetum, you will join a globally distributed team of developers dedicated to crafting innovative software solutions. Your role will involve collaborating with diverse teams across various regions to create scalable, secure, and efficient applications that align with both business objectives and technical standards.Key Responsibilities:Architect and implement robust full-stack applications following best practices and technology roadmaps.Engage in requirement analysis, design solutions, and contribute to system architecture discussions.Develop and enhance user-centric front-end interfaces and back-end services.Work closely with cross-functional teams to ensure seamless integration, testing, and deployment.Drive improvements in software design, fostering functional and technical excellence.Conduct comprehensive integration tests and User Acceptance Testing (UAT) to maintain high quality.Collaborate with central teams to uphold secure coding practices and robust Software Development Life Cycle (SDLC) processes.Champion SDLC best practices, with a focus on automation, CI/CD pipelines, and streamlined deployments.Mentor team members and advocate for code quality through regular code reviews and adherence to development standards.Embrace new technologies, frameworks, and methodologies to enhance productivity.Facilitate efficient support collaboration with relevant IT teams, particularly in Production Support (APS).

Join Reaktor's renowned technology community as a Lead Full-Stack Developer in the vibrant city of Lisbon!If you thrive in an environment that encourages innovation and collaboration, possess a comprehensive understanding of the software development lifecycle, and are passionate about addressing real-world challenges, you could be the perfect fit for our team.Your Role:As a Full Stack Developer at Reaktor, you will play a crucial role across various stages of software development, from initial design to deployment.Your Responsibilities:Collaborate with client technology and business teams to identify and implement suitable technologies.Develop and enhance features across front-end applications, back-end servers, and databases, ensuring seamless integration.Provide exceptional technical expertise to both clients and team members.Engage in debugging, architectural design, and other software development tasks.Your Profile:You are a proactive and inquisitive developer with expertise in both back-end and front-end technologies, along with a solid grasp of infrastructure.To Succeed in This Role, You Will Need:Extensive experience in various software development modalities, including back-end, front-end, operations, and consulting.No strict requirement on years of experience, but typically, Full Stack skills take around 6+ years to develop.Proficiency in at least one popular server-side programming language, with a focus on TypeScript/JavaScript and Node.js; experience with Java, Scala, Kotlin, Clojure, or Python is also valued.Strong knowledge of client-side languages and frameworks, particularly TypeScript/JavaScript and React for web projects, as well as Swift, Java, Kotlin, or React Native for mobile applications.Relevant skills for developing new back-end services and building CI/CD pipelines when necessary.Fundamental understanding of DevOps practices, including Continuous Integration (CI), automated deployment, and test automation.

Join our dynamic team at Inetum2 as a Full Stack Developer! We are seeking a passionate and skilled developer who thrives in a collaborative environment. In this role, you will work on exciting projects that challenge your creativity and technical expertise, allowing you to contribute to innovative solutions.As a Full Stack Developer, you will be responsible for designing, developing, and maintaining both front-end and back-end applications. Your ability to work across the entire stack will be crucial in delivering high-quality digital experiences.

About Relay Commerce Relay Commerce is a leading e-commerce enablement platform providing innovative scaling solutions tailored for personalized messaging, social commerce, and customer retention strategies. We empower merchants to thrive in an ever-changing digital marketplace with our cutting-edge suite of tools. Currently, our solutions facilitate over $1 billion in incremental gross merchandise volume for more than 35,000 merchants worldwide. Our ecosystem features eight advanced software products designed to enhance merchant revenue growth through email marketing automation, conversion optimization, user-generated content management, retention analytics, and subscription management. Relay's products are recognized as essential revenue-generating tools for forward-thinking e-commerce merchants across the globe. Role Overview In this pivotal role as a Full-stack Software Engineer, you will primarily focus on back-end development (approximately 70% of your time) by creating robust TypeScript services that drive subscription management, billing workflows, and merchant-facing APIs for Shopify stores handling millions of transactions. You will work collaboratively within a team, independently delivering features while collaborating with a seasoned team lead to propose solutions, implement them, and oversee their operation in production. It is crucial that these systems maintain high reliability, observability, maintainability, and performance. Utilization of AI tools such as Claude code and Codex will enable you to accelerate feature delivery effectively. Additionally, you will contribute to our React-based front-ends (approximately 30%) in a dynamic, multi-functional team environment. About Smartrr Smartrr, a subsidiary of Relay Commerce, is a frontrunner in subscription solutions tailored for e-commerce brands. Our platform empowers numerous Shopify merchants to effortlessly launch, manage, and scale their subscription and loyalty programs. Smartrr has facilitated over $300 million in transaction volume, significantly strengthening customer relationships and brand profitability.

Join the dynamic team at Fundraisr as a Junior Full-Stack Software Engineer in Lisbon! This pivotal role aims to enhance our modular, service-oriented architecture while scaling a platform that has impressively achieved $1M ARR.Your mission will be to transition our platform to a high-performance, enterprise-grade ecosystem that streamlines the fundraising lifecycle through the power of automation and AI.Key Responsibilities:Develop and refine our React 18 Single-Page Application using TypeScript and Vite to ensure efficient production builds.Oversee backend logic with Node.js Vercel Serverless Functions and design the database API layer utilizing Supabase and PostgreSQL.Integrate features leveraging OpenAI and Anthropic APIs for campaign classification and personalized outreach generation.Facilitate bi-directional synchronization with SmartLeads, and create OAuth infrastructures for Google and Microsoft integrations.Implement Row-Level Security (RLS) for multi-tenant isolation and prepare our infrastructure for GDPR compliance and SOC 2 certification.

Join our innovative team at inetum2 as a Full-Stack Developer. In this dynamic role, you will leverage your expertise in React and .NET to develop robust web applications that enhance user experience and drive business success. Collaborate with cross-functional teams to design, implement, and maintain high-quality software solutions.

We are seeking a talented Senior Full-stack Developer proficient in React.js and Node.js to join our dynamic team at Cross Border Talents in Lisbon. The ideal candidate will have a robust understanding of both front-end and back-end technologies.Key Responsibilities:Collaborate with project teams to determine technology stacks based on client needs.Contribute to the development of high-quality web applications.Mentor junior developers and assist in code reviews.Essential Qualifications:Fluency in English and reside within a reasonable commuting distance of our office.A minimum of 3 years' experience in software development with a focus on modern programming languages.Strong knowledge of both front-end and back-end technologies, including React.js, Node.js, and other frameworks.Proficiency in DevOps tools such as Kubernetes, Docker, AWS, and GCP.Desirable Attributes:Passion for technology and involvement in hobby projects.Prior experience in consulting is a plus.A keen understanding of Agile methodologies and team collaboration.

About Us At Riskified, we empower businesses to fuel their ecommerce growth by mitigating risks. Our platform is trusted by some of the largest global brands and publicly traded companies, offering guaranteed protection against chargebacks and combating fraud and policy abuse at scale, all while enhancing customer retention. With a dedicated team of ecommerce risk analysts, data scientists, and researchers, our AI-driven fraud and risk intelligence platform analyzes individual interactions to deliver real-time decisions and robust identity-based insights. We proudly partner with leading companies across various industries, including Acer, Gucci, Lorna Jane, and GoPro. We thrive in a collaborative environment, working alongside talented individuals to build products that truly matter. Our mission-driven approach provides us with a sense of purpose and a lasting impact, which is why we choose to be part of Riskified every day. About the Role We are seeking a Web Development Team Lead to oversee and enhance our global, multilingual marketing website built on WordPress. This position straddles the realms of marketing, branding, and technology, with accountability for the website's performance, scalability, and reliability across diverse regions and languages.In this hands-on leadership role, you will guide a small web development team, contribute directly to code, and set the technical vision for building, shipping, testing, and scaling our marketing web platform. You will collaborate closely with Marketing, Design, and external partners to deliver an exceptional digital experience while fostering the technical growth of the team. What You'll Be Doing Technical Ownership & Delivery Take full ownership of the global marketing website, focusing on architecture, performance, security, scalability, and reliability. Design, develop, and maintain WordPress sites using Bedrock and Sage with Laravel-based architecture principles. Build and manage custom Gutenberg blocks and reusable components. Lead technical planning and execution for new features, integrations, and growth experiments. Optimize site performance, SEO, accessibility, and Core Web Vitals metrics. Ensure high availability through monitoring, maintenance, and incident response. Team Leadership & Growth Lead and mentor a web development team with a focus on continuous improvement and technical excellence.

Renesas Electronics Corporation seeks a Senior QA Engineer in Lisbon to drive software quality through full-stack automation. This position centers on building and executing thorough test plans and shaping automation approaches across the technology stack. Role overview This role focuses on designing comprehensive tests and developing automation strategies for software projects. The Senior QA Engineer will work to identify areas for improvement and implement solutions that enhance reliability and performance. Key responsibilities Create and execute test plans that cover both front-end and back-end systems Develop and refine automation strategies to streamline testing processes Collaborate with development teams to address quality issues and ensure robust releases Location This position is based in Lisbon.

Roland Berger is looking for a Full Stack Developer (all genders) to join the team in Lisbon. This role involves working on both front-end and back-end development for digital products that align with client strategies and business objectives. Key responsibilities Design, build, and maintain digital products across the entire technology stack Work closely with team members to integrate front-end and back-end components effectively Help deliver solutions that are reliable and meet high quality standards Team focus The development team creates digital solutions that support clients in reaching their business goals. Collaboration and integration are central to the way the team operates. About Roland Berger Roland Berger is a global consultancy that helps organizations address complex challenges and achieve strategic results.

About Us At Riskified, we empower businesses to unlock eCommerce growth by mitigating risk. Major global brands and publicly traded companies trust us for guaranteed protection against chargebacks, fraud prevention, and enhancing customer retention. Our AI-driven fraud and risk intelligence platform is backed by the largest team of eCommerce risk analysts, data scientists, and researchers, delivering real-time insights and identity-based decisions. We are proud to partner with iconic companies across various sectors, including Acer, Gucci, Lorna Jane, GoPro, and many more. We thrive in a collaborative work environment where creative minds come together to innovate and enhance impactful products. Our culture fosters opportunities for personal and professional growth, allowing us to leave a lasting impression in the industry. About the Role *** This position will be recruited, hired, and employed by a third party. At Riskified, we prioritize design and strive to create a cohesive and distinctive experience across all platforms. Our design team collaborates on diverse projects, from application UX/UI to marketing collateral. We are on the lookout for a passionate and organized Marketing Designer to join our brand design group. In this pivotal role, you will transform our sophisticated technology into a captivating visual narrative that boosts demand and accelerates our sales process. You will benefit from a dedicated professional development budget and mentorship from senior design leaders to further enhance your skills. What You'll Be Doing Create stunning and diverse cross-platform marketing materials from concept to launch, including layouts, visuals, and illustrations for both digital and print. Ensure all design materials are aligned with core messaging and tailored to resonate with the audience for each project. Convert complex concepts into engaging visuals, infographics, and data visualizations that simplify the understanding of Riskified’s technology and products. Collaborate closely with lead generation teams including regional marketing, global demand generation, and content to design assets that enhance interest and engagement.

Riskified is looking for a Performance Marketing Specialist in Lisbon to help shape and execute marketing strategies that support brand growth and customer acquisition. This position centers on building and running campaigns that deliver measurable results. Role overview This role involves developing and launching performance-focused marketing initiatives. Working with teams across the company, the Performance Marketing Specialist ensures campaigns stay on track with business goals and deliver strong outcomes. What you will do Create and implement marketing strategies aimed at increasing brand visibility and attracting new customers Work closely with colleagues from other departments to align campaigns with overall business objectives Monitor campaign performance and analyze key metrics Share insights and recommendations to improve future marketing efforts Requirements Experience in performance marketing or a similar marketing function Strong analytical skills for tracking and interpreting campaign data Ability to collaborate with cross-functional teams

Join Talan as a Senior Full Stack Developer and immerse yourself in a dynamic and innovative environment. We're seeking a talented individual to contribute to our engineering and development team, where you will work on cutting-edge projects that make an impact. This position offers the exciting opportunity for relocation to Spain, where you can enjoy a vibrant culture and a rich professional landscape.